| Sumitomo Rubber Industries, Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20160139534 | DEVELOPING ROLLER, AND IMAGE FORMING APPARATUS - A developing roller is provided, which is capable of controlling a solid black density and a dot density at higher levels than currently available levels. An image forming apparatus employing the developing roller is also provided. The developing roller ( | 05-19-2016 |
| 20160137005 | HEAVY DUTY PNEUMATIC TIRE - A heavy duty pneumatic tire includes a tread including a pair of central portions, a pair of middle portions and a pair of shoulder portions, wherein each of the portions has an axial width varying periodically while increasing and decreasing in a circumferential direction of the tire. Each of the central portions includes a central block with a hexagonal shaped top face and a central sipe. A total that is the sum of each maximum axial width of the central portions, each maximum axial width of the middle portions, each maximum axial width of the shoulder portions, a maximum axial length of the central sipe provided on one of the central portions, and a maximum axial length of the central sipe provided on the other one of the central portions is in a range of from 1.05 to 1.31 times a tread width. | 05-19-2016 |
| 20160131547 | TIRE PRESSURE DECREASE DETECTION APPARATUS, METHOD, AND PROGRAM - A tire pressure decrease detection apparatus comprising a rotation speed information detection unit for detecting rotation speed information of wheels of a vehicle, a resonance frequency estimate unit for time-series estimating a torsional resonance frequency of the rotation speed information from the rotation speed information obtained by the rotation speed information detection unit, and a judgment unit for judging a decrease in pressure of tires installed in the wheels based on the estimated torsional resonance frequency. The resonance frequency estimate unit includes a noise removal unit for removing a noise superimposed on a wheel speed signal serving as the rotation speed information for each of the wheels with using an active noise control technology. | 05-12-2016 |
| 20160130426 | TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE - Provided are a rubber composition for tires preventing discoloration and improving ozone resistance while maintaining or improving good elongation at break, and a pneumatic tire using the rubber composition. Included is a rubber composition for tires including: a rubber component; a naturally occurring wax containing 40-98% by mass of an ester component; a phenylenediamine antioxidant and/or a quinone antioxidant; and a specific nonionic surfactant, the rubber composition having an amount of diene rubber of 70-100% by mass per 100% by mass of the rubber component, the rubber composition having an amount of the naturally occurring wax of 0.01-5.0 parts by mass, an amount of petroleum-derived wax of 0-6.0 parts by mass, a combined amount of the phenylenediamine antioxidant and the quinone antioxidant of 1.0-8.0 parts by mass, and an amount of the nonionic surfactant of 0.1-5.0 parts by mass, each per 100 parts by mass of the rubber component. | 05-12-2016 |
| 20160129732 | PNEUMATIC TIRE - Each shoulder land region | 05-12-2016 |
| 20160122518 | TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE - The present invention provides a rubber composition for tires capable of improving discoloration resistance and tire appearance while maintaining or improving good fuel economy, good abrasion resistance, and good performance on ice, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing a Pluronic nonionic surfactant in an amount of 0.1 to 6.0 parts by mass relative to 100 parts by mass of the rubber component, the rubber composition having a combined amount of polybutadiene rubber, natural rubber, and polyisoprene rubber of 70% by mass or more based on 100% by mass of the rubber component, and the rubber composition containing sulfur. | 05-05-2016 |
| 20160122517 | RUBBER COMPOSITION FOR TIRES, AND PNEUMATIC TIRE - Provided are a rubber composition for tires, capable of improving discoloration resistance and tire appearance while maintaining good handling stability, crack resistance, and ozone resistance or improving these properties, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires including a rubber component having a combined amount of polybutadiene rubber, natural rubber, and polyisoprene rubber of 90% by mass or more based on 100% by mass of a rubber component; sulfur; a pluronic nonionic surfactant in an amount of 0.1 to 5.0 parts by mass per 100 parts by mass of the rubber component; and carbon black in an amount of 2 to 70 parts by mass per 100 parts by mass of the rubber component. | 05-05-2016 |
| 20160122488 | SURFACE MODIFICATION METHOD AND SURFACE MODIFICATION BODY - Provided are methods for surface-modifying a rubber vulcanizate or a thermoplastic resin, which can provide chemically fixed surfaces showing low adsorption properties or selective adsorption properties with respect to proteins and cells, as well as excellent durability, instead of coatings which have drawbacks, such as that the performance is reduced due to separation or peeling of the coating. The present invention relates to a method for surface-modifying an object made of a rubber vulcanizate or a thermoplastic resin, the method including: a step 1 of forming polymerization initiation points on the surface of the object; and a step 2 of radically polymerizing a hydrophilic monomer starting from the polymerization initiation points by irradiation with UV light having a wavelength of 300 to 400 nm to grow polymer chains on the surface of the object. | 05-05-2016 |
| 20160121659 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion provided with a circumferentially and continuously extending zigzag shoulder main groove located adjacent to a tread edge to define a shoulder portion axially outward of the shoulder main groove and a central lateral groove extending axially inwardly from the shoulder main groove. The shoulder portion includes a top surface having an axially inner edge facing the shoulder main groove and a sidewall extending radially inwardly from the inner edge. The sidewall of the shoulder portion is provided with a shoulder dent portion dented axially outwardly from the shoulder main groove. The central lateral groove is located so that an extended portion in which the central lateral groove is extended axially outwardly overlaps with the shoulder dent portion at least partially. | 05-05-2016 |
| 20160121656 | NON-PNEUMATIC TIRE - A non-pneumatic tire has high durability performance. A non-pneumatic tire is provided with: an annular tread section ( | 05-05-2016 |
| 20160108214 | RUBBER COMPOSITION FOR TIRES, AND PNEUMATIC TIRE - The present invention provides a rubber composition for tires and a pneumatic tire formed from the rubber composition, wherein the rubber composition can improve discoloration resistance and tire appearance while maintaining or improving good fuel economy and good abrasion resistance. The present invention relates to a rubber composition for tires containing a rubber component containing styrene-butadiene rubber in an amount of 30 to 100% by mass based on 100% by mass of the rubber component; a Pluronic-type nonionic surfactant; and sulfur, the rubber composition for tires having a combined amount of carbon black and silica of 20 to 140 parts by mass relative to 100 parts by mass of the rubber component. | 04-21-2016 |
| 20160108213 | PNEUMATIC TIRE AND RUBBER MASTERBATCH - Provided are pneumatic tires having good processability and achieving a balanced improvement in wet-grip performance, fuel economy, abrasion resistance, flex fatigue resistance, and durability. The invention relates to a pneumatic tire including at least one selected from the group consisting of a tread, a sidewall, and a tire internal component, the at least one being formed from a rubber composition containing carbon black, silica, and an emulsion-polymerized rubber that has an acetone extractable content of at most 2.5% by mass when determined by an acetone extraction method; or a pneumatic tire including at least one selected from the group consisting of a tread, a sidewall, and a tire internal component, the at least one being formed from a rubber composition containing carbon black, silica, and an emulsion-polymerized rubber that has a soap content of at most 2.5% by mass and an organic acid content of at most 2.5% by mass. | 04-21-2016 |
| 20160107488 | PNEUMATIC TIRE - A pneumatic tire includes a side wall having a side surface and a roughened region formed on the side surface such that the roughened region is extending in circumferential direction. The roughened region includes lands and dimples formed between adjacent lands, the lands include first lands and second lands formed such that the first and second lands are alternately arrayed in the circumferential direction and the first and second lands are inclined relative to radial direction in opposite inclination directions, and the roughened region is formed such that when the tire is mounted on a normal rim and filled with air at normal inflation pressure, the roughened region has an outer periphery formed on radially inner side of position 30 mm away in radially inward direction from tire maximum-width position, and the roughened region has an inner periphery formed on radially outer side of radially outer edge of the rim. | 04-21-2016 |
| 20160102193 | RUBBER COMPOSITION FOR TIRES AND PNEUMATIC TIRE - The present invention aims to provide rubber compositions for tires that contain a natural rubber achieving a balanced improvement in abrasion resistance, breaking performance, and processability to achieve a balanced improvement in abrasion resistance, breaking performance, and processability, and also provide pneumatic tires containing such rubber compositions for tires. Included is a rubber composition for tires comprising a modified natural rubber prepared by treating natural rubber latex with a proteolytic enzyme, and then treating the treated natural rubber latex with a lipolytic enzyme and/or a phospholipid degrading enzyme. Also included is a rubber composition for tires, comprising a modified natural rubber prepared by centrifuging natural rubber latex to recover a latex fraction comprising latex particles having an average particle size of 0.25 μm or less. | 04-14-2016 |
| 20160101654 | MOTORCYCLE TIRE - A motorcycle tire comprises a tread portion provided with a block pattern. The block pattern comprises block groups each consisting of at least five blocks Bg arranged along an oblique zone x so that the centroids m of the treads of the blocks Bg are positioned within the oblique zone X. The oblique zone x has a width of not more than 4 mm. The oblique zone x is inclined at an angle α of from 1 to 10 degrees with respect to the tire circumferential direction. | 04-14-2016 |
| 20160101239 | GASKET FOR PREFILLED SYRINGE | 04-14-2016 |
| 20160096948 | RUBBER COMPOSITION AND PNEUMATIC TIRE - An object of the present invention is to provide a rubber composition which can further improve abrasion resistance without deterioration in energy efficiency, and a pneumatic tire using the rubber composition. The rubber composition comprises a polymer mixture obtained by modifying a polymer composed of at least one of a conjugated diene compound and an aromatic vinyl compound with a compound having at least one of an ester group and a carboxyl group; at least one of triamines; and silica, the polymer mixture having a weight-average molecular weight of 1.0×10 | 04-07-2016 |
| 20160096947 | RUBBER COMPOSITION AND PNEUMATIC TIRE - An object of the present invention is to provide a rubber composition which can further improve abrasion resistance without deterioration in energy efficiency, and a pneumatic tire using the rubber composition. The rubber composition comprises a polymer mixture obtained by modifying a polymer composed of at least one of a conjugated diene compound and an aromatic vinyl compound with a compound having at least one of an ester group and a carboxyl group; at least one of tetraamines; and silica, the polymer mixture having a weight-average molecular weight of 1.0×10 | 04-07-2016 |
| 20160096933 | SURFACE MODIFICATION METHOD AND SURFACE-MODIFIED ELASTIC BODY - Provided are methods for surface-modifying a rubber vulcanizate or a thermoplastic elastomer, which enable surfaces with a chemically fixed lubricant to be produced instead of a resin coating which has drawbacks, such as that lubricity is reduced due to separation, peeling or the like of the coating during the movement within a vessel or tract. The present invention relates to a method for surface-modifying an object made of a rubber vulcanizate or a thermoplastic elastomer, the method including step 1 of forming polymerization initiation points on a surface of the object, and step 2 of radically polymerizing a halogen-containing deliquescent monomer, starting from the polymerization initiation points, by irradiation with ultraviolet light having a wavelength within the range of 300 to 400 nm to grow polymer chains on the surface of the object. | 04-07-2016 |
| 20160096911 | SURFACE TREATMENT AGENT AND MEDICAL DEVICE - Provided are surface treatment agents that enable surfaces with a chemically fixed lubricant to be produced instead of a resin coating which has drawbacks, such as that lubricity is reduced due to separation, peeling or the like of the coating during the movement within a vessel or tube; and medical devices, such as catheters, having a surface at least partially treated with such a surface treatment agent. The present invention relates to a surface treatment agent for medical devices which contains a copolymer of a hydrophilic functional group-containing monomer and an epoxy group-containing monomer. | 04-07-2016 |
| 20160096400 | AIRLESS TIRE - An airless tire includes a tread ring, a hub positioned on radially inner side of the ring, and a spoke structure including polymer material and connecting the ring and hub, the structure including spoke pieces arrayed in circumferential direction. Each spoke piece has a tread connecting portion, a hub connecting portion, and a spoke curved portion between the tread and hub connecting portions, each spoke piece has straight radial length LSb of at least 1.05 times straight radial length LSa and curved radial length LLb of at least 1.03 times LSb when positioned at 0° on coordinate around the tire axis where a perpendicular line extending vertically upward from the tire axis is set 0°, LSb is measured along the base line under base-load condition, LSa is measured along the base line under no-load condition, and LLb is measured along a curve of each spoke piece under the base-load condition. | 04-07-2016 |
| 20160090475 | TIRE - The present invention provides a tire having improved wet grip performance and improved breaking properties while ensuring fuel economy. The present invention relates to a tire including a tire component formed of a vulcanized rubber composition obtained by vulcanizing a specific unvulcanized rubber composition. | 03-31-2016 |
| 20160090474 | RUBBER COMPOSITION FOR TIRE AND TIRE - An object of the present invention is to provide a rubber composition for tire which has less performance change with respect to a temperature change at a high temperature region and has less performance change with respect to a road surface change from a wet road surface to a dry road surface, and a tire which has a tire member composed of the rubber composition for tire. The rubber composition for tire of the present invention is a rubber composition for tire in which a complex modulus G* | 03-31-2016 |
| 20160089939 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion provided with a circumferentially and continuously extending zigzag shoulder main groove located adjacent to a tread edge, a shoulder lateral groove extending axially outwardly from the shoulder main groove and a central lateral groove extending axially inwardly from the shoulder main groove. The shoulder main groove includes an inner corner portion protruding axially inwardly. The central lateral groove includes a first groove portion, a second groove portion and a confluence portion at which the first groove portion and the second groove portion meet. The confluence portion of the central lateral groove is communicated with the inner corner portion of the shoulder main groove. The shoulder lateral groove is located so that an extended portion in which the shoulder lateral groove is extended axially inwardly overlaps with the confluence portion at least partially. | 03-31-2016 |
| 20160089938 | PNEUMATIC TIRE - A pneumatic tire includes a tread having crown grooves, shoulder grooves, middle lands, and shoulder lands. Each middle land has middle blocks and middle inclined lateral grooves such that the middle inclined lateral grooves are inclining relative to tire axial direction and connecting a crown groove and a shoulder groove, each shoulder land has shoulder blocks and shoulder inclined lateral grooves such that the shoulder inclined lateral grooves are inclining relative to the axial direction and connecting a shoulder groove and a tread edge, and each middle inclined lateral groove is positioned adjacent to a shoulder block such that each middle inclined lateral groove and the shoulder block are sandwiching the shoulder groove and overlapping in tire circumferential direction and have a ratio Lov/Lmg ranging from 0.7 to 1.0, where Lov represents tire circumferential overlapping length Lov, and Lmg represents tire circumferential length Lmg of the middle inclined lateral grooves. | 03-31-2016 |
| 20160089935 | AIRLESS TIRE AND METHOD FOR MANUFACTURING SAME - The present invention increases the bonding strength between a spoke and a tread ring and/or between a spoke and a hub to improve durability. An airless tire provided with a tread ring, a hub, and a spoke, wherein the spoke is integrally provided with: an outer annular portion of which the outer peripheral surface is bonded to the inner peripheral surface of the tread ring via a first adhesion layer; an inner annular portion of which the inner peripheral surface is bonded to the outer peripheral surface of the hub via a second adhesion layer, and a spoke portion which couples the inner and outer annular portions. The inner peripheral surface of the tread ring and/or the outer peripheral surface of the hub is composed of a roughened surface having a surface roughness (Ra) (arithmetic average roughness) of 3-1000 μm or a surface roughness (Rz) (ten-point average roughness) of 30-5000 μm. | 03-31-2016 |
| 20160083553 | RUBBER COMPOSITION AND PNEUMATIC TIRE - The present invention provides rubber compositions that can achieve both abrasion resistance and low heat build-up properties, and pneumatic tires including such rubber compositions. The present invention relates to a rubber composition containing one or more carbon blacks, at least one of which is produced from a feedstock oil that has a BMCI value of not greater than 150 and an aliphatic hydrocarbon content of not less than 30% by mass. | 03-24-2016 |
| 20160083497 | SURFACE MODIFICATION METHOD FOR THREE-DIMENSIONAL OBJECT AND SYRINGE GASKET - The present invention provides methods of modifying the surfaces of a plurality of three-dimensional objects at the same time to provide good sliding properties, good durability after repeated sliding, good sealing properties, and the like, and also provides gaskets for syringes obtained by such methods. The present invention relates to a method for modifying the surfaces of a plurality of three-dimensional objects including: a step 1 of immersing a plurality of three-dimensional objects in a photopolymerizable monomer-containing liquid; and a step 2 of polymerizing the photopolymerizable monomer by photoirradiation while rotating a vessel containing the plurality of three-dimensional objects and the photopolymerizable monomer-containing liquid, to grow polymer chains on the surfaces of the plurality of three-dimensional objects. | 03-24-2016 |
| 20160082784 | PNEUMATIC TIRE - Provided is a pneumatic tire which is configured so as to prevent carcass cords from biting into an inner liner, thereby improving the durability performance of the tire. A pneumatic tire ( | 03-24-2016 |
| 20160082780 | PNEUMATIC TIRE - A pneumatic tire | 03-24-2016 |
| 20160082779 | PNEUMATIC TIRE - To provide a pneumatic tire capable of improving the rolling performance, low noise performance and wear resistance performance while maintaining the wet performance. | 03-24-2016 |
| 20160082777 | MOTORCYCLE TIRE - A motorcycle tire is provided with a tread pattern made up of circumferentially alternately arranged first and second pattern units. The first pattern unit is substantially mirror symmetrical with the second pattern unit. Each pattern unit comprises a main oblique groove and first and second auxiliary oblique grooves, each of which is a bent groove having a bent position and composed of a steeply-inclined part and a mildly-inclined part. In the main oblique groove, the steeply-inclined part extends from a start position on one side of the tire equator to the bent position on the other side of the tire equator, while inclining to one tire circumferential direction; and the mildly-inclined part extends from the bent position to the adjacent tread edge, while inclining to the above-mentioned one tire circumferential direction. The first auxiliary oblique groove is disposed on the above-mentioned one side of the tire equator and connected to the steeply-inclined part of the main oblique groove at a connection point, wherein the steeply-inclined part extends from the connection point to the bent position, while inclining to the above-mentioned one tire circumferential direction; and the mildly-inclined part extends from the bent position to the adjacent tread edge, while inclining to the above-mentioned one tire circumferential direction. The second auxiliary oblique groove is connected to the steeply-inclined part of the main oblique groove at a connection point, wherein the bent position is on the same side of the tire equator as the bent position of the first auxiliary oblique groove; the connection point is on the other side of the tire equator than the bent position of the second auxiliary oblique groove; the steeply-inclined part extends from the connection point to the bent position, while inclining to the above-mentioned one tire circumferential direction; and the mildly-inclined part extends from the bent position to the adjacent tread edge, while inclining to the above-mentioned one tire circumferential direction. | 03-24-2016 |
| 20160082775 | PNEUMATIC TIRE | 03-24-2016 |
| 20160082244 | MEDICAL TUBE, METHOD FOR MANUFACTURING SAME, AND TUBE CONNECTOR - A medical tube is provided, which has a detachment preventing function and provides a joint structure at lower costs without forming a step on an inner surface of the joint structure. The medical tube ( | 03-24-2016 |
| 20160077463 | ELECTRICALLY CONDUCTIVE RUBBER COMPOSITION, AND DEVELOPING ROLLER - The present invention provides an electrically conductive rubber composition of an electron conductive type which contains neither an expensive ion conductive rubber having a higher environmental dependence nor a softening agent and a liquid rubber which are liable to increase the compression set of a developing roller or contaminate a photoreceptor body, and is usable for production of a more flexible developing roller. The present invention also provides a developing roller produced by using the rubber composition. The electrically conductive rubber composition contains a rubber component including an EPDM and an NBR and/or an SBR, sulfur, a thiazole crosslinking accelerating agent, tetramethylthiuram monosulfide and tetrabutylthiuram disulfide. The developing roller ( | 03-17-2016 |
| 20160077462 | SEMICONDUCTIVE ROLLER - A semiconductive roller for use as a developing roller or the like is provided, which has an outer peripheral surface at least partly imparted with a reduced friction coefficient μ without irradiation with ultraviolet radiation. The semiconductive roller ( | 03-17-2016 |
| 20160077024 | METHOD OF MEASURING CROSSLINK DENSITIES IN SULFUR-CONTAINING POLYMER COMPOSITE MATERIAL - Provided is an evaluation method that provides detailed information on the crosslink densities in sulfur-containing polymer composite materials. The present invention relates to a method of measuring crosslink densities in a sulfur-containing polymer composite material, the method including: a measurement step of irradiating the sulfur-containing polymer composite material with high intensity X-rays and measuring an X-ray absorption spectrum of the composite material while varying the energy of the X-rays; a visualization step of determining the three-dimensional structure of sulfur atoms in the sulfur-containing polymer composite material by the reverse Monte Carlo method from the X-ray absorption spectrum; and a calculation step of calculating, from the three-dimensional structure of sulfur atoms, a crosslink density for each number of sulfur atoms bonded. | 03-17-2016 |
| 20160075863 | PNEUMATIC TIRE, STUDLESS TIRE, METHOD FOR MANUFACTURING PNEUMATIC TIRE, AND METHOD FOR MANUFACTURING STUDLESS TIRE - Provided are pneumatic tires or studless winter tires that achieve a balanced improvement in fuel economy, reinforcing properties (flex crack growth resistance, abrasion resistance, tensile strength, adhesive strength, resistance to air permeation), grip performance (wet-grip performance, performance on snow and ice), handling stability, and heat aging resistance, and methods for producing such a pneumatic tire or studless winter tire. The present invention relates to a pneumatic tire including at least one component selected from the group consisting of a sidewall, a base tread, a bead apex, a clinch apex, an innerliner, and an undertread, each of which is formed from a rubber composition that contains a highly purified, modified natural rubber whose pH is adjusted to 2 to 7, and carbon black and/or a white filler. | 03-17-2016 |
| 20160075859 | RUBBER COMPOSITION AND RUBBER MOLDED ARTICLE USING THE SAME - A rubber composition according to the present invention includes at least a rubber component, which includes an ethylene propylene diene rubber, a peroxide crosslinking agent, and amorphous silica and further includes not less than 0.3 parts by mass of a quaternary ammonium salt with respect to 100 parts by mass of the amorphous silica. A rubber molded article according to the present invention is constituted of the rubber composition. | 03-17-2016 |
| 20160075485 | MEDICAL RUBBER CLOSURE AND METHOD FOR MANUFACTURING THE SAME - A medical rubber closure according to the present invention includes a disc-shaped flange portion and a leg portion formed to be continuous to a lower surface side of the flange portion, and a region at the lower surface side of the flange portion and the leg portion are made of a nitrile based rubber, a region at a top surface side of the flange portion is made of a butyl based rubber, and the leg portion is laminated with a coating layer made of a fluorine based resin film. | 03-17-2016 |
| 20160075190 | PNEUMATIC TIRE - A pneumatic tire | 03-17-2016 |
| 20160075186 | PNEUMATIC TIRE FOR OFF-ROAD MOTORCYCLE - A pneumatic tire for motorcycle for running on rough terrain comprises a tread portion | 03-17-2016 |
| 20160075096 | METHOD FOR AFFIXING RUBBER STRIP, METHOD FOR MANUFACTURING PNEUMATIC TIRE USING SAME, AND AFFIXING DEVICE - Trough use of an applicator, a rubber strip is supplied to the drum side surface in a conveyance direction at a right angle to a reference line extending over the drum side surface from the shaft center of the drum outward in the radial direction. The supplied rubber strip is pressed against and affixed to the drum side surface using an affixing roller. The affixing roller is supported so as to be able to rotate about a roller shaft center parallel to the reference line. The roller shaft center is disposed at a distance (L) downstream from the reference line in the drum rotation direction. | 03-17-2016 |
| 20160068672 | PNEUMATIC TIRE - The present invention provides a pneumatic tire that achieves a balanced improvement in initial grip performance, grip performance during running, and abrasion resistance. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing a rubber component, a solventless acrylic resin, and a liquid xylene resin, and having a solventless acrylic resin content of 1 to 50 parts by mass and a liquid xylene resin content of 5 to 100 parts by mass, each per 100 parts by mass of the rubber component. | 03-10-2016 |
| 20160068666 | PNEUMATIC TIRE - The present invention provides a pneumatic tire that achieves a balanced improvement in wet grip performance, dry grip performance, and abrasion resistance. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing a rubber component, a solventless acrylic resin, and a liquid xylene resin, and having a solventless acrylic resin content of 1 to 60 parts by mass and a liquid xylene resin content of 10 to 100 parts by mass, each per 100 parts by mass of the rubber component. | 03-10-2016 |
| 20160067890 | SHEET CONVEYING ROLLER AND PRODUCTION METHOD THEREOF - The present invention provides a sheet conveying roller, which effectively reduces the amount of paper dust accumulated on its outer peripheral surface to thereby suppress sheet transportation failure. The sheet conveying roller includes a nonporous tubular elastic member ( | 03-10-2016 |
| 20160059638 | HEAVY DUTY PNEUMATIC TIRE - A heavy duty pneumatic tire comprises a tread portion provided with circumferentially continuously extending main grooves and axial grooves connecting between the main grooves to form blocks. The main grooves include a zigzag crown main groove disposed on each side of the tire equator, and a zigzag shoulder main groove disposed axially outside each crown main groove, wherein the groove width of the crown main groove is less than the groove width of the shoulder main groove. The axial grooves include crown axial grooves circumferentially dividing crown blocks disposed between the crown main grooves and each having a substantially hexagonal tread, and middle axial grooves circumferentially dividing middle blocks disposed between each crown main groove and the adjacent shoulder main groove and each having a substantially hexagonal tread, wherein the groove width of the middle axial grooves is more than the groove width of the crown axial grooves. | 03-03-2016 |
| 20160058919 | METAL MEDICAL DEVICE - The present invention provides metal medical devices which are provided with sliding properties (lubricity), low protein adsorption properties and low cell adsorption properties and further in which these properties are prevented from deteriorating. The present invention relates to a metal medical device having a surface at least partially treated with a copolymer C of a polymerizable silane compound A and a polymerizable compound B that contains a functional group. | 03-03-2016 |
| 20160052342 | PNEUMATIC TIRE - A pneumatic tire includes a tread having an outer surface forming a tread surface, and a belt positioned on radially inner side of the tread. In cross section perpendicular to circumferential direction, the tread surface has a profile ranging from equatorial plane to tread edge and including arcs protruding in radially outward direction, the arcs include arc Ci having radius Ri, arc C | 02-25-2016 |
| 20160052340 | PNEUMATIC TIRE - Provided is a pneumatic tire having an excellent finished bonding surface between the tread and its adjacent wing or sidewall while ensuring properties required for tires, such as wet grip performance, abrasion resistance, and resistance to degradation over time. Included is a pneumatic tire including a tread and a wing or sidewall adjacent to the tread, wherein the tread is formed from a tread rubber composition that has an amount of aluminum hydroxide having an average particle size of 0.69 μm or smaller and a N | 02-25-2016 |
| 20160046790 | TIRE AND METHOD FOR MANUFACTURING TIRE - An unvulcanized tire includes an inner member including a rubber composition. The composition includes rubber component, carbon black and sulfide compound. The rubber component includes isoprene-based rubber, the sulfide compound of formula (I), | 02-18-2016 |
| 20160046781 | TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE - Provided is a rubber composition for tires that achieves a balanced improvement in wet grip performance, abrasion resistance, and roll processability, and a pneumatic tire formed from the rubber composition. The invention relates to a rubber composition for tires including, per 100 parts by mass of a rubber component, 1-60 parts by mass of an inorganic reinforcing agent having an average particle size of 0.69 μm or less and a nitrogen adsorption specific surface area of 10-50 m | 02-18-2016 |
| 20160046093 | METHOD FOR MANUFACTURING PNEUMATIC TIRE - A method for manufacturing a pneumatic tire includes helically winding a first rubber strip including first composition on outer side of a rigid core in circumferential direction of the core such that a first rubber layer including the first strip is formed to have first overlapped portions overlapping side edges of the first strip in helical pattern, and helically winding a second rubber strip including second composition on external surface of the first layer in the same winding direction as the first strip such that a second rubber layer including the second strip is formed to have second overlapped portions overlapping side edges of the second strip in helical pattern. The core has external surface shaped to form inner cavity of a pneumatic tire, and the winding of the second strip includes winding the second strip such that each second overlapped portion is formed between adjacent first overlapped portions. | 02-18-2016 |
| 20160041491 | ELECTROCONDUCTIVE ROLLER, AND IMAGE FORMING APPARATUS - An electroconductive roller is provided, which is imparted with lower resistance than a prior-art electroconductive roller without addition of an expensive salt and an electron conductive agent liable to cause various problems or by adding the electron conductive agent in a smaller proportion that hardly causes the problems, and an image forming apparatus employing the electroconductive roller is also provided. The electroconductive roller ( | 02-11-2016 |
| 20160040804 | PINCH VALVE TUBE, METHOD FOR MANUFACTURING THE SAME, AND PINCH VALVE - A pinch valve tube includes a fluororubber tube, the entirety of which is formed integrally of fluororubber and having an internal cavity arranged as a flow passage for a fluid, and a crosslink density of the fluororubber forming an inner surface of the flow passage is made higher than an average crosslink density of the entirety. | 02-11-2016 |
| 20160039248 | PNEUMATIC TIRE - A pneumatic tire has a tread pattern capable of improving wet performance and steering stability in a well balanced manner. An inboard middle land portion is provided with inboard middle axial grooves connecting between an inboard shoulder main groove and an inboard crown main groove and inclined at 20 to 30 degrees. An outboard middle land portion is provided with outboard middle semi-blind grooves extending axially inwardly from a outboard shoulder main groove, and outboard middle sipes extending from the axially inner ends of the outboard middle semi-blind grooves to the outboard crown main groove. The outboard middle semi-blind grooves and the outboard middle sipes are inclined at 20 to 30 degrees. A center land portion is provided with inboard crown semi-blind grooves extending from the inboard crown main groove, and outboard crown semi-blind grooves extending from the outboard crown main groove. | 02-11-2016 |
| 20160033042 | GASKET - The present invention provides a gasket excellent in properties such as sliding properties and resistance to liquid leakage. The present invention relates to a gasket whose sliding surface includes annular projections, the gasket having polymer chains immobilized on at least part of its surface, the annular projections including a first projection that is nearest to a top face, and a bottom side projection that is farthest from the top face, the first projection and/or the bottom side projection having an annular flat portion with a width of 0.1 mm or more. | 02-04-2016 |
| 20160030803 | GOLF CLUB FITTING APPARATUS - Provided is a fitting apparatus that accurately and objectively determines an optimal swingability index, which is a swingability index of a golf club suited to a golfer. The fitting apparatus is provided with an acquisition unit, a calculation unit, and a determination unit. The acquisition unit acquires a measurement value obtained by measuring a swing action of a test club by the golfer with a measurement device. The calculation unit calculates a swing index indicating a feature amount of the swing action, based on the measurement value. The determination unit determines the optimal swingability index, according to a magnitude of the swing index. | 02-04-2016 |
| 20160026114 | SEMICONDUCTIVE ROLLER - A semiconductive roller is provided, which has a toner transport amount and a toner charge amount properly controlled, particularly, when being used as a developing roller, and is substantially free from imaging failure such as fogging and background smudging. The semiconductive roller is formed from a semiconductive rubber composition, and has an outer peripheral surface having a surface roughness defined by a roughness profile such that an arithmetic average roughness is not greater than 0.7 μm and a difference Rδc between vertical section levels at two different load length percentages (at a load length percentage Rmr1 of 25% and a load length percentage Rmr2 of 75%) is not greater than 1.2 μm. | 01-28-2016 |
| 20160017114 | MEDICAL RUBBER PART - A medical rubber part according to the present invention comprises a rubber composition including at least one type of rubber component, selected from the group consisting of butyl rubbers and halogenated butyl rubbers, and not less than 3 parts by mass and not more than 50 parts by mass, with respect to 100 parts by mass of the total amount of the rubber component, of silica with a BET specific surface area of not less than 1 m | 01-21-2016 |
| 20160016442 | RUN-FLAT TIRE - A run-flat tire includes a tread, and a sidewall extending from a side of the tread and including a side-reinforcing rubber layer having substantially a crescent-shaped cross section. The sidewall has protruding portions formed on an external surface of the sidewall such that the protruding portions are protruding in a tire axially outward direction and positioned in a tire circumferential direction, each of the protruding portions is extending such that each of the protruding portions is inclining relative to a tire radial direction in a front view of the sidewall, and the protruding portions are formed such that protruding portions adjacent to each other in the tire circumferential direction are positioned to overlap each other in the tire circumferential direction. | 01-21-2016 |
| 20150375584 | METHOD AND SYSTEM FOR ESTIMATING WEAR OF AXIALLY DIVIDED TREAD ZONES OF TIRE - A method for estimating wear of each of circumferential tread zones of a tire by the use of a computer is disclosed. A tire model of the tire comprising model's circumferential tread zones is defined. A simulation for running the tire model under rolling conditions for free-rolling, braking, driving and cornering is performed to obtain a first average wear energy of each model's circumferential tread zone under each rolling condition. With respect to a given running pattern of the tire, occurrence frequencies of the respective rolling conditions occurring in the running pattern are defined. For each circumferential tread zone, a second average wear energy of the concerned circumferential tread zone when the tire is run according to the running pattern is calculated such that the first average wear energies under the respective rolling conditions, of the model's circumferential tread zone of the concerned circumferential tread zone are respectively weighted by the occurrence frequencies of the respective rolling conditions. Wear of each circumferential tread zone is estimated based on the calculated second average wear energy of the concerned circumferential tread zone. | 12-31-2015 |
| 20150368859 | STEEL CORD AND ELASTIC CRAWLER USING SAME - A steel cord is configured so that, when the steel cord is used as a tensile cord for an elastic crawler, a center-core dislocation and the early breakage of the wires of a core are prevented. A steel cord comprises: a core which comprises a single core strand, and a sheath which is formed by twisting together six sheath strands arranged around the core. The core strand has a layer-twisted structure comprising: a center-core portion which is formed by twisting three core wires together; and an external layer portion which is formed by twisting together eight to nine core wires arranged around the center-core portion. The sheath strands each have either a bundle twisted structure which is formed by twisting twelve to nineteen sheath wires or a multi-layer twisted structure which is formed by twisting twelve to nineteen sheath wires in layers. The diameter (dc) of the core wires is greater than the diameter (ds) of the sheath wi res. The average gap (Gc) between the core wi res of the external layer portion is 0.015 mm or greater, and the average gap (Gs) between the sheath strands is 0.1 mm or greater. | 12-24-2015 |
| 20150368426 | RUBBER COMPOSITION AND PNEUMATIC TIRE HAVING TREAD MANUFACTURED FROM SAID RUBBER COMPOSITION - Provided are a rubber composition having a good balance of improved fuel efficiency, abrasion resistance, and wet grip performance while providing good processability, and a pneumatic tire having a tread manufactured from the rubber composition. A rubber composition comprising: a copolymer synthesized by copolymerization of a conjugated diene monomer and an unsaturated acyclic monoester represented by the formula (1) below; and carbon black and/or silica, | 12-24-2015 |
| 20150367694 | METHOD FOR ESTIMATING SHAPE OF VULCANIZATION-MOLDED TIRE - A computer-implemented method for estimating a shape of a tire vulcanization-molded by a molding surface of a mold, comprises: a process in which a primary mold model of the mold which is made up of a finite number of elements to have the molding surface before tire vulcanization is defined; a mold deformation process in which a deformation calculation of the primary mold model is performed based on conditions for tire vulcanization to obtain a shape of the molding surface during tire vulcanization, and a secondary mold model having the obtained shape of the molding surface is defined; and a tire shape acquiring process in which, based on the obtained shape of the molding surface of the secondary mold model, the shape of the tire is calculated. | 12-24-2015 |
| 20150367685 | TIRE FOR HEAVY LOADS - To improve durability performance and rolling resistance performance in a well-balanced manner. It is a tire for heavy loads including a carcass ply ( | 12-24-2015 |
| 20150367174 | GOLF SWING ANALYSIS APPARATUS AND GOLF CLUB FITTING APPARATUS - A golf swing analysis apparatus for analyzing a swing action of a golf club is provided. The golf swing analysis apparatus comprises an acquisition unit configured to acquire a measurement value obtained by measuring the swing action using a measurement device; a grip behavior derivation unit configured to derive a behavior of a grip of the golf club that occurs during the swing action, based on the measurement value; and a shoulder behavior derivation unit configured to derive a behavior of a pseudo shoulder of a golfer that occurs during the swing action, based on the behavior of the grip. | 12-24-2015 |
| 20150367076 | GASKET TO BE USED FOR MEDICAL SYRINGE, AND MEDICAL SYRINGE - A gasket having a novel structure ensuring both the gas tightness and the low-friction slidability is provided. A sliding portion of the gasket ( | 12-24-2015 |
| 20150362854 | SEMICONDUCTIVE ROLLER - An inventive semiconductive roller includes a tubular semiconductive rubber layer ( | 12-17-2015 |
| 20150361252 | TRUCK OR BUS TIRES - The present invention provides truck or bus tires having an excellent balance of fuel economy, rubber strength, and abrasion resistance together with high productivity. The present invention relates to a truck or bus tire, including a cap tread formed from a rubber composition, the rubber composition containing a rubber component including at least one selected from the group consisting of polyisoprene rubbers and polybutadiene rubber, and, per 100 parts by mass of the rubber component, 10 to 60 parts by mass of a reinforcing filler and 1 to 20 parts by mass of a farnesene resin obtained by polymerizing farnesene. | 12-17-2015 |
| 20150360517 | MOTORCYCLE TIRE FOR ROUGH TERRAIN - A motorcycle tire for rough terrain is provided in tread middle regions with middle blocks each provided in its ground contacting top surface with an auxiliary groove extending in the tire circumferential direction. | 12-17-2015 |
| 20150360514 | TIRE - The present invention provides a tire being excellent in air barrier property and crack resistance at low temperature, without relying on phosphorus resource. The tire has an inner liner composed of a rubber composition comprising 1 to 30 parts by mass of an aliphatic dibasic acid ester and 8 to 30 parts by mass of a resin with a softening point of 60° C. or higher, per 100 parts by mass of a rubber component including at least one selected from the group consisting of butyl rubber, halogenated butyl rubber, and isoprene-based rubber, wherein the rubber composition has a brittle temperature of −35° C. or lower. | 12-17-2015 |
| 20150355571 | SEMICONDUCTIVE ROLLER - A semiconductive roller ( | 12-10-2015 |
| 20150352905 | PNEUMATIC TIRE - A pneumatic tire comprises a tread portion provided with a center main groove on the tire equator and a shoulder main groove on each side of the center main groove. The center main groove and the shoulder main groove extend zigzag and continuously in the tire circumferential direction so that a crown land portion defined between the center main groove and the shoulder main groove has an axial width alternately increasing and decreasing along the tire circumferential direction. The crown land portion is provided with a shallow crown circumferential groove extending zigzag and continuously in the tire circumferential direction, and crown sipes extending from the center main groove to the shoulder main groove across the shallow crown circumferential groove. Zigzag apexes of the shallow crown circumferential groove are respectively positioned between the crown sipes. | 12-10-2015 |
| 20150352755 | SPOKE CASTING DEVICE OF AIRLESS TIRE - A spoke casting device for integrally cast-molding a spoke of an airless tire includes a casting mold including upper and lower molds which relatively moves between mold closed and mold open states in tire axial direction, a positioning device which concentrically positions a hub and a tread ring with respect to the cast mold, and a demolding device which pushes out an airless tire from the lower mold in the open state. The cast mold concentrically holds the ring and hub between the upper and lower molds and forms a cavity for casting a spoke made of a polymer material between the ring and hub held in the closed state, and the positioning device includes a first positioning device including an outer peripheral surface contact portion such that the contact portion makes contact with outer peripheral surface of the ring and positions the ring with respect to the cast mold. | 12-10-2015 |
| 20150346047 | TIRE PRESSURE DECREASE DETECTION APPARATUS AND METHOD, AND COMPUTER READABLE MEDIUM THEREFOR - A tire pressure decrease detection apparatus comprising: rotation speed information detection means, rotation acceleration information calculation means, resonance frequency estimate means for time-series estimating a torsional resonance frequency of the rotation speed information, correlation calculation means for, regarding front and rear right wheels and front and rear left wheels, respectively calculating time series correlations of the rotation acceleration information, and judgment means for judging a decrease in pressure of the tires based on the estimated torsional resonance frequency. In a case where the correlations exceed predetermined threshold values, the resonance frequency estimate means takes that a periodic noise from a road surface is generated in the vicinity of the torsional resonance frequency and stops estimating the torsional resonance frequency of the front and rear wheels of the side exceeding the threshold value. | 12-03-2015 |
| 20150344803 | SLIDING ELASTIC BODY - Provided are a sliding elastic body capable of imparting excellent sliding properties and resistance to protein adsorption and, at the same time, maintaining sealing properties; and a syringe gasket, a catheter, and a tire which include the sliding elastic body. The present invention relates to a sliding elastic body including an elastic body whose surface is fully or partially laminated with a fluororesin film, the laminated elastic body being treated with a fluorinated oil. | 12-03-2015 |
| 20150344743 | PUNCTURE SEALING AGENT - The present invention provides a puncture sealant for tires capable of achieving improved injectability while having excellent initial sealing performance and seal retention performance. The puncture sealant includes rubber latex, a tackifier, an antifreezing agent, and a thixotropy-imparting agent. | 12-03-2015 |
| 20150343849 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion provided with at least one zigzag main groove extending continuously in a circumferential direction of the tire with a plurality of zigzag corners. The main groove includes a groove bottom and a pair of groove edges. The groove bottom extends in a zigzag manner in the circumferential direction of the tire with a first amplitude. The groove bottom has a width varying periodically so that a maximum width portion and a minimum width portion appear in turn at the zigzag corners. Each of the groove edges extends in a zigzag manner in the circumferential direction of the tire with a second amplitude, wherein the first amplitude is greater than the second amplitude. | 12-03-2015 |
| 20150343848 | HEAVY-DUTY PNEUMATIC TIRE - A heavy-duty pneumatic tire includes a tread having main grooves and lateral grooves connecting the main grooves such that each main groove has zigzag pattern extending continuously in tire circumferential direction and that the lateral grooves divide portion between the main grooves into blocks. Each main groove has a groove periphery on block side such that the groove periphery has inward crests protruding toward the block side and outward crests protruding in the opposite direction and alternating with the inward crests, the lateral grooves connect the inward crests and incline at angle α in range of 10 to 20 degrees with respect to tire axial direction, and each block is formed to have a ground-contact surface which has substantially hexagonal shape and ratio W | 12-03-2015 |
| 20150337324 | METHOD FOR REGULATING EXPRESSION OF SPECIFIC PROTEIN USING CYTOKININ-RESPONSIVE TRANSCRIPTION FACTOR, ISOPRENOID-PRODUCING PLANT HAVING GENE ENCODING CYTOKININ-RESPONSIVE TRANSCRIPTION FACTOR INTRODUCED THEREIN, AND METHOD FOR PRODUCING POLYISOPRENOID USING SAID ISOPRENOID-PRODUCING PLANT - The present invention provides a method for enhancing the overall pathway of polyisoprenoid biosynthesis. The present invention further provides an isoprenoid-producing plant having an overall enhanced pathway of polyisoprenoid biosynthesis, and a method of producing a polyisoprenoid using such an isoprenoid-producing plant. The present invention relates to a method of regulating by a cytokinin-responsive transcription factor the expression of at least one protein selected from the group consisting of hydroxymethylglutaryl-CoA reductase, isopentenyl diphosphate isomerase, cis-prenyltransferase, and small rubber particle protein. | 11-26-2015 |
| 20150336430 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion provided with a pair of central blocks arranged on both sides of a tire equator. Each of the central blocks includes a ground contacting face having an axially inner block edge facing the tire equator. The inner block edge extends in a V-shaped manner including a first inclined edge and a second inclined edge inclined in an opposite direction to the first inclined edge. The second inclined edge has a circumferential length shorter than a circumferential length of the first inclined edge. Each of the central blocks includes a first portion having the first inclined edge and a second portion having the second inclined edge. The second portion of the central block includes an end wall at an opposite side to the first portion. The end wall includes a stepwise wall extending in steps toward a groove bottom. | 11-26-2015 |
| 20150336343 | VENT PIECE, TIRE VULCANIZATION MOLD WITH VENT PIECE, AND TIRE MANUFACTURED USING TIRE VULCANIZATION MOLD - A vent piece for a vent channel of a tire vulcanization mold includes a cylindrical tube formed to be installed in a cavity end portion of a vent channel of a tire vulcanization mold and having a through hole extending in axial direction of the channel, and a plug positioned in the through hole and moves between closed and open positions. The plug has a second bearing surface facing a first surface of the tube such that the second surface of the plug makes contact with the first surface to close the channel in the closed position and the second surface is separated from the first surface to open the channel in the open position, and the first and/or second surfaces has a film formed at least on a portion of the first and/or second surfaces such that the film reduces friction between the first and second surfaces. | 11-26-2015 |
| 20150329716 | STUDLESS WINTER TIRE - The present invention provides a studless winter tire including a tread (a cap tread in the case of a multi-layered tread) which exhibits a reduced increase in hardness at low temperatures and achieves a balanced improvement in both performance on ice and snow and abrasion resistance. The present invention also provides a studless winter tire including a base tread which exhibits a reduced increase in hardness at low temperatures and achieves a balanced improvement in both performance on ice and snow and durability. The studless winter tires include a tread or base tread formed from a rubber composition that contains predetermined amounts of silica and a rubber component including natural rubber and a specific modified conjugated diene polymer. | 11-19-2015 |
| 20150329704 | RUBBER COMPOSITION AND TIRE - An object of the present invention is to provide a rubber composition which can prevent mold contamination while maintaining abrasion resistance and wet grip performance, and a tire which has a tread composed of the rubber composition. The rubber composition of the present invention comprises a predetermined amount of at least one selected from the group consisting of stearic acid, a metal salt of saturated fatty acid and a specific mold release agent, a specific resin, silica and a silane coupling agent, based on a diene rubber component, where an amount of an unreacted silane coupling agent in the rubber composition before vulcanization is within a predetermined range. | 11-19-2015 |
| 20150329696 | RUBBER COMPOSITION AND PNEUMATIC TIRE - A rubber composition includes a rubber component including oil-extended butadiene rubber and/or styrene-butadiene rubber, an inorganic reinforcement agent having nitrogen adsorption specific surface area of 10 to 60 m | 11-19-2015 |
| 20150328941 | PNEUMATIC TIRE - Provided is a pneumatic tire that can reduce electrical resistance. The pneumatic tire has a tread portion ( | 11-19-2015 |
| 20150328940 | PNEUMATIC TIRE - A pneumatic tire having a designated orientation for mounting to a vehicle includes a tread, sidewalls, beads including bead cores, respectively, and a carcass including a carcass ply. Each bead includes a rubber apex, an outer bead and an inner bead, the rubber apex includes an outer apex portion and an inner apex portion, the outer apex portion includes a first outer apex portion positioned inward from the carcass ply in the axial direction and a second outer apex portion positioned outward from the carcass ply in the axial direction, the inner apex portion includes a first inner apex portion positioned inward from the carcass ply in the axial direction and a second inner apex portion positioned outward from the carcass ply in the axial direction, and the second outer apex portion has height which is greater than height of the second inner apex portion in the radial direction. | 11-19-2015 |
| 20150328938 | PNEUMATIC TIRE - A pneumatic tire includes beads, a carcass and a belt. The carcass ply is turned up around the beads from axially inner sides toward axially outer sides respectively such that the carcass ply includes a main portion bridging the beads and turn-up portions positioned on the axially outer sides of the beads and extending in a radially outward direction, respectively, each of the beads includes a core including wires such that the wires extend in a circumferential direction, the core has two or more strands and turns which are three times a number of the strands or more, the wires have a radially outer edge positioned on a radially inner side of a radially outer edge of a flange of a normal rim when the pneumatic tire is mounted on the normal rim, and each of the turn-up portions has an outer-edge part overlapping an edge portion of the belt. | 11-19-2015 |
| 20150322446 | METHOD FOR REGULATING EXPRESSION OF SPECIFIC PROTEIN USING PHOTORESPONSIVE TRANSCRIPTIONAL FACTOR, ISOPRENOID-PRODUCING PLANT HAVING GENE ENCODING PHOTORESPONSIVE TRANSCRIPTIONAL FACTOR INTRODUCED THEREINTO, AND METHOD FOR PRODUCING POLYISOPRENOID USING SAID ISOPRENOID-PRODUCING PLANT - The present invention provides a method for enhancing the overall pathway of polyisoprenoid biosynthesis. The present invention further provides an isoprenoid-producing plant having an overall enhanced pathway of polyisoprenoid biosynthesis, and a method for producing polyisoprenoids using such an isoprenoid-producing plant. The present invention relates to a method for regulating by a light-responsive transcription factor the expression of at least one protein selected from the group consisting of hydroxymethylglutaryl-CoA reductase, isopentenyl diphosphate isomerase, cis-prenyltransferase, and small rubber particle protein. | 11-12-2015 |
| 20150321516 | PNEUMATIC TIRE - A pneumatic tire for a motorcycle includes a tread having a tread surface which makes contact with ground, a pair of beads each positioned on a radially inner side of the tread, a carcass bridging one of the beads and the other one of the beads, and a reinforcement layer laminated on the carcass on the radially inner side of the tread. Each of the beads includes a core and an apex extending from the core in a radially outward direction, and the apex of each of the beads has an outer edge positioned on a radially outer side of an edge of the tread surface. | 11-12-2015 |
| 20150316869 | SEMICONDUCTIVE ROLLER AND PRODUCTION METHOD THEREFOR - A semiconductive roller ( | 11-05-2015 |
| 20150315125 | SYNTHESIS SYSTEM, RUBBER CHEMICAL SUBSTANCE FOR TIRES, SYNTHETIC RUBBER FOR TIRES, AND PNEUMATIC TIRE - The present invention provides a synthesis system that can synthesize aniline and/or styrene efficiently, a synthesis system that can synthesize butadiene (1,3-butadiene) efficiently, a rubber chemical for a tire which is synthesized from the aniline obtained by the synthesis system, a synthetic rubber for a tire which is synthesized from the styrene and/or butadiene obtained by the synthesis systems, and a pneumatic tire produced using the rubber chemical for a tire and/or the synthetic rubber for a tire. The present invention relates to a synthesis system for synthesizing aniline and/or styrene from an alcohol having two or more carbon atoms via an aromatic compound. | 11-05-2015 |
| 20150314654 | PNEUMATIC TIRE - A pneumatic tire includes a tread, a pair of sidewalls extending from edges of the tread substantially in a radially inward direction, a pair of clinches extending from edges of the sidewalls substantially in the radially inward direction, a pair of beads positioned on axially inner sides of the clinches, and a carcass extending along an inner side of the tread and sidewalls such that the carcass is bridging the pair of beads. Each bead includes a fitting portion extending in a circumferential direction and formed to be fitted to a rim, the fitting portion has a bottom surface positioned on a radially inner side of the fitting portion and a side surface positioned on an axially outer side of the fitting portion, the bottom surface includes a heel on the axially outer side of the fitting portion, and the side surface includes a concave extending in the circumferential direction. | 11-05-2015 |
| 20150302180 | SIMULATION METHOD FOR HIGH-POLYMER MATERIAL - A computer-implemented simulation method for estimating the dispersion of filler contained in a high-polymer material is disclosed. Filler models numerically modeling the filler are each made up of F-particles. Polymer models numerically modeling the high-polymer material are each made up of P-particles. In a simulation process, a molecular dynamics calculation is performed using the filler models | 10-22-2015 |
| 20150299423 | RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE - The present invention provides a rubber composition for a tire, which has an increased rate of reaction between a silane coupling agent and silica so that its performances including fuel economy and abrasion resistance can be enhanced; and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for a tire, containing: diene rubber; silica; a silane coupling agent; and a carbonate salt and/or a hydrogen carbonate salt, wherein the rubber composition has a total content of the carbonate salt and the hydrogen carbonate salt of 0.3 to 25 parts by mass relative to 100 parts by mass of the silica. | 10-22-2015 |
| 20150298412 | DEVICE FOR BONDING RUBBER STRIP - A rubber strip is bonded with high accuracy to the surface of a non-linear cylinder-like wound body. The space occupied by the device is reduced. Provided is a transporting conveyor having a transporting belt guided rotatably by guiding rollers. A transporting surface of the transporting belt is provided with a transporting surface width centerline extending in a straight line over the entire length thereof. The guiding rollers are distributed into forward-side guiding rollers and backward-side guiding rollers in the transporting direction. Since the forward-side guiding roller is held tiltibly around the transporting surface width centerline, the transporting surface forms a twistable twisting transporting surface portion between a forward-side transporting surface portion supported by the forward-side guiding roller and a forward-side transporting surface portion supported by the backward-side guiding roller. | 10-22-2015 |
| 20150291765 | MODIFIED NATURAL RUBBER, PROCESS FOR PRODUCING SAME, RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE - The present invention provides a modified natural rubber having a good balance of improved fuel economy, heat-aging resistance, processability, and breaking resistance, and a method for producing such a rubber. The present invention also provides a tire rubber composition and a pneumatic tire which are prepared using the modified natural rubber. The present invention relates to a highly purified, modified natural rubber whose pH is adjusted to 2 to 7. | 10-15-2015 |
| 20150290977 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion having a pair of central block rows arranged on both sides of a tire equator. Each of the central block rows includes a plurality of central blocks arranged in a circumferential direction of the tire. Each of the central blocks includes a ground contacting face with an axially inner block edge facing the tire equator. The inner block edge includes a first inclined edge and a second inclined edge inclined in an opposite direction to the first inclined edge so that the inner block edge protrudes toward the tire equator. The first inclined edge includes a first circular arc portion with a center located on the side of the tire equator. | 10-15-2015 |
| 20150290974 | PNEUMATIC TIRE - A pneumatic tire including an inner liner including a first layer including a first polymer composition having a polymer component containing 5% to 70% by mass of an SIBS and 30% to 95% by mass of a rubber component, and a second layer including a second polymer composition having a polymer component containing 10% to 85% by mass of at least any of an SIS and an SIB and 10% to 90% by mass of a rubber component, the first layer being placed inwardly in a tire radius direction, and the inner liner having an average thickness Gs in a buttress region Rs that is thinner than an average thickness Gb in a bead region Rb. | 10-15-2015 |
| 20150284487 | SURFACE MODIFICATION METHOD AND SURFACE-MODIFIED ELASTIC BODY - The present invention provides methods for surface-modifying a rubber vulcanizate or a thermoplastic elastomer, which can cost-effectively provide a variety of functions, such as sliding properties, according to the application. The present invention relates to a method for surface-modifying a rubber vulcanizate or a thermoplastic elastomer as a target for modification, the method including: step 1 of forming polymerization initiation points on a surface of the modification target; and step 2 of radically polymerizing a non-functional monomer, starting from the polymerization initiation points, to grow non-functional polymer chains, and then radically polymerizing a fluoropolyether segment-containing functional monomer to grow functional polymer chains. | 10-08-2015 |
| 20150283865 | PNEUMATIC TIRE - A tire includes a pair of beads, a carcass, chafers, an insulation, and cushion layers. Each bead includes a core positioned inward of the bead in a radial direction. At an inside of the core in the radial direction, the insulation is laminated on the chafers so as to be located outward of the chafers in the radial direction. Each cushion layer is laminated on the insulation so as to be located outward of the insulation in the radial direction. The insulation and the cushion layer are formed from respective crosslinked rubbers different from each other. A compressive elastic modulus Eα* of the crosslinked rubber of the cushion layer is smaller than a compressive elastic modulus Eβ* of the crosslinked rubber of the insulation. | 10-08-2015 |
| 20150277276 | TONER SUPPLY ROLLER AND IMAGE FORMING APPARATUS - A toner supply roller ( | 10-01-2015 |
| 20150277275 | TONER SUPPLY ROLLER AND IMAGE FORMING APPARATUS - A toner supply roller ( | 10-01-2015 |
| 20150277274 | TONER SUPPLY ROLLER AND IMAGE FORMING APPARATUS - A toner supply roller ( | 10-01-2015 |
| 20150273949 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion provided with a circumferentially extending zigzag shoulder main groove arranged proximate to a tread edge, and a plurality of shoulder lateral grooves each extending axially outwardly from the shoulder main groove. Each of the shoulder lateral grooves includes a first portion and second portion. The first portion includes a first groove wall and an axially inner end connected to the shoulder main groove. The second portion is arranged axially outward of the first portion and includes a second groove wall. The second portion has a groove width and a groove depth greater than those of the first portion. The first groove wall of the first portion and the second groove wall of the second portion are smoothly continued. | 10-01-2015 |
| 20150273948 | PNEUMATIC TIRE - A pneumatic tire comprises a tread portion provided with a shoulder main groove and shoulder blind grooves. The shoulder blind grooves extend axially inwardly from one of the tread edges and each having an axially inner blind end. The shoulder main groove extends circumferentially of the tire on the axially inside of the axially inner blind ends of the shoulder blind grooves. Each shoulder blind groove is provided with an axially inner shallow part, an axially outer deep part, and a sloped part therebetween having a depth gradually increasing from the shallow part towards the deep part, and having an axially outer end positioned at a distance from the tire equator which is 42.5% to 45% of the tread width. | 10-01-2015 |
| 20150273944 | PNEUMATIC TIRE - A pneumatic tire includes a tread, side walls, beads, a carcass, a belt layer, an inner-liner layer, and a sealant layer. The inner-side surface of the inner-liner layer to which the sealant layer is adhered has profile that satisfies L | 10-01-2015 |
| 20150273777 | METHOD FOR MANUFACTURING MOTORCYCLE TIRE - A method for manufacturing a motorcycle tire includes forming a cylindrical raw tire body including a carcass body including a carcass ply and bead cores on the carcass ply, and forming a cylindrical belt ply wound in a cylindrical shape. The forming of the belt ply includes filling the tire body to expand to first expanded phase, winding a sheet-type belt ply by extending the sheet-type belt ply on bell rings to form the cylindrical belt ply with inner surface bonded to the apex of the tire body, filling the tire body to expand the apex of the tire body along with the belt ply to second expanded phase, increasing diameter of an expandable profile deck to expand the apex of the tire body along with the belt ply to third expanded phase, and winding down edges of the belt ply to bond the belt ply to the tire body. | 10-01-2015 |
| 20150273155 | GASKET FOR PREFILLED SYRINGE, AND PRODUCTION METHOD THEREFOR - A method for producing a prefilled syringe gasket ensures that a sliding portion of the gasket (a portion of the gasket to be kept in contact with a syringe barrel) is substantially free from a scratch or an existing scratch of the gasket is substantially eliminated. The prefilled syringe gasket includes a liquid contact portion, and a sliding portion to be kept in contact with an inner surface of a syringe barrel. The method includes the steps of: forming the gasket; and rubbing a surface of the sliding portion of the formed gasket against a predetermined base, wherein a rubbing direction in which the surface of the sliding portion is rubbed in the rubbing step extends circumferentially of the sliding portion. | 10-01-2015 |
| 20150266988 | RUBBER COMPOSITION FOR TIRES, TIRE MEMBER, AND PNEUMATIC TIRE - Provided are rubber compositions for tires capable of providing tire components and pneumatic tires that have the same level of fuel efficiency and wet grip performance (particularly, wet grip performance) as those of tire components and pneumatic tires containing conventional synthetic rubber, while satisfying the requirements for a sound material-cycle society. The present invention relates to rubber compositions for tires containing a biomass-derived rubber polymerized from an aromatic vinyl compound and a diene, the biomass-derived rubber having a pMC (percent modern carbon) measured in accordance with ASTM D 6866-10 of 1% or higher. | 09-24-2015 |
| 20150266984 | SURFACE MODIFICATION METHOD, SURFACE-MODIFIED ELASTIC BODY, GASKET FOR INJECTOR, INJECTOR, AND TIRE - Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber. The surface modification method comprises the step of forming hydroxyl group on surface of to-be-modified object such as rubber so that water contact angle of the surface becomes 8 to 50 degrees smaller than original water contact angle in unmodified condition, the step of forming polymerization initiation site by subjecting the hydroxyl group to action of secondary or tertiary organic halide, and the step of growing polymer brush on the surface of to-be-modified object by subjecting monomer to radical polymerization at the polymerization initiation site acting as a point of initiation. | 09-24-2015 |
| 20150258858 | PNEUMATIC TIRE - A pneumatic tire has a tread portion | 09-17-2015 |
| 20150258855 | HEAVY-DUTY PNEUMATIC TIRE - A heavy-duty pneumatic tire includes a tread, a pair of sidewalls extending from edges of the tread, respectively, a pair of beads extending along the pair of side walls, respectively, a carcass bridging between the pair of beads, and a belt positioned on a radially inner side of the tread and a radially outer side of the carcass and including plies laminated in a tire radial direction, each of the plies having cords arranged in parallel and a topping rubber. Each of the cords has a 1×4 single-strand structure and satisfies 0.090≦A≦0.112 and 1550N≦E≦1750N, where A represents a ratio F/E, F represents flexural rigidity, and E represents tensile strength per cord. | 09-17-2015 |
| 20150252151 | FLUORORUBBER MOLDED PRODUCT AND METHOD FOR MANUFACTURING THE SAME - A fluororubber molded product according to the present invention is obtained by the steps of molding and crosslinking a fluororubber composition and thereafter immersing the composition in a fluorocarbon or an aqueous solution containing a fluorocarbon at a concentration of not less than 10% by volume. | 09-10-2015 |
| 20150247027 | STUDLESS WINTER TIRE - Provided is a studless winter tire achieving balanced improvements in abrasion resistance and performance on snow and ice. The studless winter tire includes a cap tread formed from a rubber composition, the rubber composition containing a rubber component including natural rubber and polybutadiene rubber, an aromatic oil, and silica, the rubber component including the natural rubber and the polybutadiene rubber in a combined amount of 30 to 100 mass % per 100 mass % of the rubber component, the rubber composition containing, per 100 parts by mass of the rubber component, 20 to 80 parts by mass of the aromatic oil and 15 to 80 parts by mass of the silica, the rubber composition being prepared by mixing the natural rubber, the aromatic oil, and a masterbatch prepared by mixing the polybutadiene rubber and the silica. | 09-03-2015 |
| 20150246495 | TIRE MANUFACTURING METHOD AND TIRE MANUFACTURING LINE - In order to simultaneously and randomly form tires of multiple, different sizes on a single line, this tire manufacturing method comprises: a green tire formation step of, on a member assembly device having a plurality of work stations arranged along a track, assembling the tire constituent members to an outer surface of a rigid core moving on the track at the work stations; and a vulcanization step of putting the green tire with the rigid core into the vulcanization molds. Each time the rigid core is carried into the work station, the size of the carried rigid core is identified, and data on the attachment condition according to the identified size from identification information and data on the attachment condition for the member material according to the size of the rigid core stored in advance in the control device is determined. The member assembly device is carried based on the determined data is controlled. | 09-03-2015 |
| 20150246494 | TIRE VULCANIZING METHOD AND TIRE MANUFACTURING METHOD - The purpose of the present invention is to efficiently vulcanize a green tire. This tire vulcanizing method and tire manufacturing method for vulcanizing a green tire | 09-03-2015 |
| 20150246492 | RIGID CORE MOLD AND METHOD FOR MANUFACTURING PNEUMATIC TIRE USING THE SAME - A technique for easily taking out a main body of a core mold is proposed. An annular core-mold main portion | 09-03-2015 |
| 20150246490 | COMPRESSOR SYSTEM, AND PUNCTURE REPAIR KIT USING SAME - The pressure of compressed air supplied to an object to be filled with air is controlled at a specified pressure or less without using a relief valve. Given that a cylinder volume (stroke volume) during a piston moves from the lower dead point to the top dead point is V | 09-03-2015 |
| 20150239300 | HEAVY DUTY PNEUMATIC TIRE - A heavy duty pneumatic tire includes a pair of beads, a carcass and a pair of bead fillers laminated outward with respect to the beads in the axial direction, respectively. Each bead includes a core and an apex, the carcass includes a carcass ply folded back around the core and having a main portion and a folding-back portion, each bead filler has an outer edge, an inner edge and a fitting portion to fit to a rim, the fitting portion includes a bottom surface to make contact with a seat surface of the rim and an outer-side contact surface to make contact with a flange of the rim, and the outer-side contact surface has inner-side, outer-side and middle portions such that when not mounted to the rim, the middle portion is recessed inward with respect to imaginary straight line L | 08-27-2015 |
| 20150239299 | PNEUMATIC TIRE - A pneumatic tire | 08-27-2015 |
| 20150239293 | PNEUMATIC TIRE INCLUDING INNER LINER - A pneumatic tire including an inner liner made of a polymer sheet is made of a polymer composition. The polymer composition includes a polymer component of a styrene-isobutylene-styrene triblock copolymer by 5 mass % to 40 mass %, and a rubber component of at least one kind selected from the group consisting of natural rubber, isoprene rubber, and isobutylene-isoprene rubber by 20 mass % to 95 mass %, and sulfur by 0.1 mass parts to 5 mass parts with respect to the polymer component by 100 mass parts. The polymer sheet has a thickness of 1.6 mm to 4.0 mm. A tread is made of a rubber composition including carbon black by 60 mass parts to 200 mass parts with respect to 100 mass parts of a rubber component including styrene-butadiene rubber by greater than or equal to 50 mass %. | 08-27-2015 |
| 20150239189 | MANUFACTURING METHOD FOR PNEUMATIC TIRE AND PNEUMATIC TIRE - [Problem ] It is a manufacturing method for a pneumatic tire | 08-27-2015 |
| 20150239188 | TIRE MANUFACTURING SYSTEM - In order to make a tire factory more compact, this tire manufacturing system comprises a material storage zone, a green tire formation zone, a vulcanization zone, and an inspection and discharge zone. The green tire formation zone has a track and a plurality of work stations arranged along the track, where a green tire is formed by assembling a tire constituent member to an outer surface of a rigid core moving on the track at each of the work stations. A member assembly device that forms the tire constituent member by attaching a member material set for each of the tire constituent members to a surface of the rigid core, under an attachment condition determined according to size of the rigid core. The member assembly devices being arranged at an outer peripheral side of the square-cornered U-shaped bending track and along the lateral track parts. The material storage zone is arranged adjacent to one lateral side of the square-cornered U-shaped bending track. The vulcanization zone is arranged adjacent to the other lateral side of the square-cornered U-shaped bending track. The inspection and discharge zone is arranged adjacent to the other lateral side of the vulcanization zone. | 08-27-2015 |
| 20150234314 | SEMICONDUCTIVE ROLLER - A semiconductive roller of the present invention includes a crosslinked product of a rubber composition containing just the two types of rubber of butadiene rubber and epichlorohydrin rubber as rubber components. | 08-20-2015 |
| 20150234313 | SEMICONDUCTIVE ROLLER - A semiconductive roller according to the present invention includes a crosslinked product containing just the three types of rubber of butadiene rubber, epichlorohydrin rubber, and chloroprene rubber as rubber components, has a non-porous, single-layer structure, and has a compression set Cs (%) of not more than 10% as measured in accordance with the measurement method described in the Japanese Industrial Standards JIS K6262:2006 under conditions of a test temperature of 70° C., a test time of 24 hours, and a compression ratio of 25%. | 08-20-2015 |
| 20150231930 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion with a designated rotational direction. The tread portion is provided with a shoulder main groove arranged nearby a tread edge, a plurality of shoulder lateral grooves each extending from the shoulder main groove to the tread edge to form a plurality of shoulder blocks. Each of the shoulder blocks includes a zigzag leading edge including an external corner with a first vertex formed between a long inclined side and a short inclined side. One of the shoulder blocks is provided with a plurality of shoulder sipes extending at an angle of 0 to 20 degrees with respect to an axial direction of the tire. One of the shoulder sipes includes a deep portion and a shallow portion that is arranged so as to include a position in the axial direction of the first vertex. | 08-20-2015 |
| 20150231929 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion provided with circumferentially extending main grooves and lateral grooves. The main grooves include an inboard shoulder main groove, an outboard shoulder main groove, an inboard center main groove and an outboard center main groove. The lateral grooves includes a plurality of first outboard shoulder lateral grooves each having an axially inner end positioned between the outboard shoulder main groove and the outboard center main groove, and a plurality of first inboard shoulder lateral grooves each having an axially inner end positioned between the inboard shoulder main groove and the inboard center main groove, wherein the number of the first inboard shoulder lateral grooves is greater than the number of the first outboard shoulder lateral grooves. | 08-20-2015 |
| 20150231928 | PNEUMATIC TIRE - A pneumatic tire comprises a tread portion provided on each side of the tire equator with a middle land portion defined between a shoulder main groove and a crown main groove each extending continuously in the tire circumferential direction. The middle land portion is provided with axially inside middle lug grooves and axially outside middle lug grooves arranged alternately in the tire circumferential direction. The axially inside middle lug groove is connected to the crown main groove at an angle θ1 of from 20 to 45 degrees with respect to the tire circumferential direction and has an axially inner opened end and an axially outer closed end. The outside middle lug grooves is connected to the shoulder main groove at an angle θ2 of from 60 to 80 degrees with respect to the tire circumferential direction and has an axially outer open end and an axially inner closed end. The tread portion may be provided with a shoulder land portion comprising circumferential sipes, axial grooves terminating at the circumferential sipes, and a circumferentially continuous rib. | 08-20-2015 |
| 20150231842 | TIRE VULCANIZING APPARATUS - To improve tire production efficiency. There are a conveying means for conveying a tire-accompanied rigid core in a lying-sideways attitude to a loading position P | 08-20-2015 |
| 20150231810 | RUBBER EXTRUSION DEVICE - The present invention can save space. A rubber extrusion device ( | 08-20-2015 |
| 20150231804 | RUBBER STRIP MANUFACTURING DEVICE AND MANUFACTURING METHOD - Provide a manufacturing method and a manufacturing device for a rubber strip capable of stably manufacturing a tape-like rubber strip of unvulcanized rubber. The rubber strip manufacturing device ( | 08-20-2015 |
| 20150231337 | GASKET FOR PREFILLED SYRINGE AND PREFILLED SYRINGE - A gasket for prefilled syringe according to the present invention is a gasket for prefilled syringe that includes a fluid contacting portion, a sliding portion with a circumferential surface, a film layer made of a fluororesin coated on the fluid contacting portion and sliding portion and further, and a coating layer including trimethylsiloxysilicate laminated on the film layer covering the sliding portion. | 08-20-2015 |
| 20150224371 | GOLF CLUB SHAFT FITTING METHOD - A fitting method, of a shaft of a golf club, for selecting a shaft having a torque matching a golfer based on a swing of the golfer. The method includes the steps of obtaining measurement values from a sensor attached to a grip of the golf club and capable of measuring angular velocities about three axes when a golf ball is hit by the golf club; obtaining a predetermined index value for the angular velocities quantified from the measurement values; and selecting a shaft matching the golfer from among multiple shafts whose torques have been measured in advance, based on a relationship established through test-hitting performed in advance between the index value and a torque of a shaft. | 08-13-2015 |
| 20150223420 | PLANT-ADVENTITIOUS-EMBRYO INDUCTION METHOD, PLANT RESTORATION METHOD, AND PLANT REPRODUCTION METHOD - The present invention provides a method of regenerating a plant, which allows stable regeneration of plants from calli; and a method of reproducing a plant, which allows stable reproduction of plants without being affected by weather, seasons or other factors. The present invention relates to a method of regenerating a plant, including a step of inducing adventitious embryos from calli; and a method of reproducing a plant, including a step of inducing adventitious embryos from calli. | 08-13-2015 |
| 20150218305 | PARTIALLY HYDROGENATED PHENOLIC RESIN, RUBBER COMPOSITION AND PNEUMATIC TIRE - The present invention provides a novel partially hydrogenated phenolic resin being prepared by selectively hydrogenating double bonds other than those on aromatic rings of a phenolic resin and having a hydrogenation ratio of the double bonds of from 30 to 100% and a hydroxyl value of from 30 to 500 mgKOH/g, a rubber composition comprising the resin and exhibiting excellent grip performance and abrasion resistance, and a pneumatic tire produced using the rubber composition. | 08-06-2015 |
| 20150217605 | PNEUMATIC TIRE - A pneumatic tire includes a tread, sidewalls, clinches, beads, a carcass, and strips. Each bead includes a core, a first apex and a second apex, the carcass includes a carcass ply which is turned up around the core from the axially inner side toward outer side such that the carcass ply is divided into a main portion and a turn-up portion, each strip has radially inner edge positioned between the main and turn-up portions, the second apex is positioned between the turn-up portion and each clinch, each strip has outer edge positioned to correspond to or on inner side of a point of maximum width of the tire in radial direction, the second apex has outer edge positioned on radially inner side of the outer edge of each strip, and the second apex includes crosslinked rubber and has complex elastic modulus in range of from 60 MPa to 70 MPa. | 08-06-2015 |
| 20150210123 | RUN-FLAT TIRE - It is a run-flat tire | 07-30-2015 |
| 20150210121 | PNEUMATIC TIRE - A pneumatic tire is provided in a tread portion | 07-30-2015 |
| 20150210120 | MOTORCYCLE TIRE - A motorcycle pneumatic tire includes a tread, a pair of sidewalls each extending from an edge of the tread substantially in a radially inward direction, a pair of beads each extending from one of the sidewalls substantially in the radially inward direction, a carcass spread along an inner side of the tread and sidewalls such that the carcass bridges the pair of beads, and a band laminated on the carcass substantially in the radially inward direction from the tread. The band includes cords and topping rubber, the cords are helically wound in the tire circumferential direction such that absolute value of cord angles to the equatorial plane is 5 degrees or lower, the carcass includes first and second plies including carcass cords and topping rubber such that absolute value of inclination angle of the carcass cords with respect to the circumferential direction is in range of 60 to 90 degrees. | 07-30-2015 |
| 20150210118 | RUBBER COMPOSITION FOR FIBER PLY CORD TOPPING, PNEUMATIC TIRE, AND METHOD FOR MANUFACTURING RUBBER COMPOSITION FOR FIBER PLY CORD TOPPING - Provided are rubber composition for a fiber ply cord topping, a fiber ply cord topping rubber, a pneumatic tire formed therefrom, and a method for manufacturing the rubber composition for a fiber ply cord topping, which make it possible to provide good conductivity to even fuel efficient and lightweight pneumatic tires. The rubber composition for a fiber ply cord topping includes a rubber component including an isoprene-based rubber and styrene butadiene rubber, and a conductive carbon black having a dibutyl phthalate oil absorption of 300 ml/100 g or more, wherein an amount of the isoprene-based rubber is 20 to 80% by mass and an amount of the styrene butadiene rubber is 20 to 60% by mass, each based on 100% by mass of the rubber component, and an amount of the conductive carbon black is 1 to 10 parts by mass per 100 parts by mass of the rubber component. | 07-30-2015 |
| 20150210026 | RIGID CORE AND METHOD FOR MANUFACTURING PNEUMATIC TIRE USING SAME - According to the present invention, the cycle time is reduced for a core removal step while suppressing displacement of the affixing position for the rubber member during a green-tire forming step. This rigid core has a ring-shaped core body having a tire forming surface for molding the inner surface of a pneumatic tire. The core body is formed from a plurality of core segments that are split in the circumferential direction and movable in the tire radius direction. The surface roughness (Ra) of the outer surface of the core segments forming the tire forming surface is 2.0-20.0 μm. | 07-30-2015 |
| 20150203612 | SURFACE MODIFICATION METHOD AND SURFACE-MODIFIED ELASTIC BODY - The present invention aims to provide methods for surface-modifying a rubber vulcanizate or a thermoplastic elastomer, which can cost-effectively impart a variety of functions, such as sliding properties or biocompatibility, according to the application. The present invention relates to a method for surface-modifying an object of a rubber vulcanizate or a thermoplastic elastomer, the method including: step 1 of forming polymerization initiation points A on the surface of the object; and step 2 of radically polymerizing a non-functional monomer, starting from the polymerization initiation points A, to grow non-functional polymer chains, and further radically polymerizing a fluorine-containing functional monomer to grow fluorine-containing functional polymer chains. | 07-23-2015 |
| 20150202923 | PNEUMATIC TIRE INCLUDING INNER LINER - A pneumatic tire including an inner liner made of a polymer sheet is provided, and the polymer sheet is made of a polymer composition. The polymer composition includes a polymer component of a styrene-isobutylene-styrene triblock copolymer by greater than or equal to 5 mass % and less than or equal to 80 mass %, and a rubber component of at least one kind selected from the group consisting of natural rubber, isoprene rubber, and isobutylene-isoprene rubber by greater than or equal to 20 mass % and less than or equal to 95 mass %. The polymer composition includes sulfur by greater than or equal to 0.1 mass parts and less than or equal to 5 mass parts with respect to the polymer component by 100 mass parts. The polymer sheet has a thickness T1 of 0.6 mm| 07-23-2015 | |
| 20150197626 | RUBBER COMPOSITION FOR TREAD, AND PNEUMATIC TIRE - The present invention provides a rubber composition for a tread which improves in terms of the fuel efficiency of a rubber composition containing an isoprene-based rubber and also offers favorable abrasion resistance and elongation at break, and a pneumatic tire comprising a tread formed from the rubber composition. The present invention relates to a rubber composition for a tread, comprising: a rubber component; a specific amount of a carbon black having a predetermined nitrogen adsorption specific surface area; a specific amount of sulfur; and a specific amount of a compound represented by formula (I) below, the rubber component comprising specific amounts of an isoprene-based rubber and a high-cis butadiene rubber having a predetermined cis content: | 07-16-2015 |
| 20150192876 | SEMICONDUCTIVE ROLLER - The semiconductive roller according to the present invention includes a nonporous roller body made of a rubber composition containing styrene-butadiene rubber and epichlorohydrin rubber as rubber components. | 07-09-2015 |
| 20150191586 | PNEUMATIC TIRE - Provided is a pneumatic tire including a bead apex and/or sidewall reinforcing layer, which achieves balanced improvements in high-hardness properties, elongation at break, and self-heating properties to provide good run-flat durability while maintaining good processability. The pneumatic tire includes a bead apex and/or sidewall reinforcing layer formed from a rubber composition, the composition containing a rubber component (A) and carbon black (B), the rubber component (A) containing, per 100% by mass thereof: 10-75% by mass of a modified butadiene rubber (A1) with a cis content of 50% by mass or less; 5-40% by mass of a polybutadiene rubber (A2) containing 1,2-syndiotactic polybutadiene crystals; and 10-40% by mass of a diene rubber (A3) different from (A1) and (A2), the composition containing 35-65 parts by mass of carbon black (B) per 100 parts by mass of rubber component (A), the carbon black (B) having a BET specific surface area of 18-50 m | 07-09-2015 |
| 20150191052 | HEAVY DUTY PNEUMATIC TIRE - A heavy duty pneumatic tire includes a tread portion provided with circumferentially extending zigzag shaped main grooves, a plurality of land portions separated by the main grooves, and a plurality of lateral grooves to form a plurality of block elements on each land portion. Each land portion comprises a number of pitches in a range of from 40 to 50, wherein each pitch consists of one block element and one lateral groove adjacent to the concerned block element. Each block element has a length in a range of from 85% to 95% of a length of the pitch. The main grooves include a crown main groove, a shoulder main groove, and a middle main groove. The middle main groove has a zigzag amplitude larger than those of the crown main groove and the shoulder main groove. | 07-09-2015 |
| 20150191047 | STUDLESS WINTER TIRE - The present invention provides a studless winter tire that has enhanced performance on ice and snow both initially and after degradation while maintaining good abrasion resistance. The studless winter tire includes: a cap tread formed from a rubber composition A; and a base tread formed from a rubber composition B, wherein the studless winter tire satisfies the following formulas (1) and (2): | 07-09-2015 |
| 20150190976 | TIRE SHAPING DRUM - To provide a tire shaping drum in which a tire member can be improved in quality by preventing backlash between two adjacent segments, and tire manufacturing productivity can be improved by decreasing a cause of facility stopping. The tire shaping drum ( | 07-09-2015 |
| 20150175862 | PUNCTURE SEALING AGENT - The present invention provides a tire puncture sealant which exhibits excellent storage stability while having reduced low-temperature viscosity and therefore improved low-temperature injection properties, and also exhibits excellent initial sealing properties and sealing force retention properties. The present invention relates to a tire puncture sealant containing rubber latex and 1,3-propanediol, the 1,3-propanediol being present in a proportion of 55 to 61% by mass of the liquid component. | 06-25-2015 |
| 20150175781 | RUBBER COMPOSITION FOR TIRES AND PNEUMATIC TIRE - The present invention provides rubber compositions for tires which are capable of improving handling stability, fuel efficiency, and processability while sufficiently reducing the dependence on petroleum resources, and pneumatic tires including tire components (e.g. bead apex) formed from the rubber compositions for tires. The present invention relates to rubber compositions for tires, containing a rubber component and a naturally derived phenolic resin. | 06-25-2015 |
| 20150174966 | HEAVY DUTY TIRE - A heavy duty tire is disclosed. The distance from the radially outer surface of a belt layer to the tire's inner surface is 15 to 23 mm when measured along a tire radial direction line passing through the bottom of a shoulder main groove. The width of the shoulder main groove is more than the width of a center main groove. The ratio Wc:Wm:Ws of the average width Wc of a center land portion, the average width Wm of a middle land portion, and the average width Ws of a shoulder land portion is 1.00:1.00 to 1.08:1.03 to 1.13. The middle land portion is provided with a plurality of middle axial grooves. The shoulder land portion is provided with a plurality of shoulder axial grooves. The width of the shoulder axial groove is more than the width of the middle axial groove. The angle θs of the shoulder axial groove is more than the angle θm of the middle axial groove with respect to the tire axial direction. | 06-25-2015 |
| 20150174965 | HEAVY DUTY TIRE - A heavy duty tire has a carcass extending from a tread portion to a bead core in a bead portion through a sidewall portion, and a belt layer disposed on the outside of the carcass in the tire radial direction and on the inside of the tread portion. In a state in which a distance between a pair of bead heels is kept at 110% of a wheel rim width of a standard wheel rim and no inner pressure is applied, the contour shape of the tread portion is formed by a 1st circular arc having a center on the tire equatorial plane, and a pair of 2nd circular arcs, disposed on both outsides of the 1st circular arc in the tire axial direction. The radius of the 2nd circular arc is more than the radius R1 of the 1st circular arc. One 2nd circular arc has the center on the other 2nd circular arc side of the tire equator in the tire axial direction, and the other 2nd circular arc has the center on the one 2nd circular arc side of the tire equator in the tire axial direction. | 06-25-2015 |
| 20150158260 | RIGID CORE FOR FORMING TIRE - A core main body comprises first core segments having a small circumferential width and having both circumferential end surfaces as first butting surfaces, and second core segments having a large circumferential width and having both circumferential end surfaces as second butting surfaces, the core main body is formed into an annular shape by butting the circumferentially adjacent first and second butting surfaces against each other. The first butting surface comprises a parallel surface portion being parallel with a center plane in the circumferential width of the first core segment connected to radially outside of an outwardly inclined surface portion inclined so that the circumferential width increases toward the inside in a radial direction. | 06-11-2015 |
| 20150151589 | PNEUMATIC TIRE - A pneumatic tire is provided in the tread portion with a main groove and an axial groove. The groove-sidewall surface on each side of the main groove is formed by a circular-arc-like surface having a radius R | 06-04-2015 |
| 20150151503 | APPARATUS FOR MOUNTING TREAD RING ON TIRE BASE AND METHOD FOR MANUFACTURING RETREADED TIRE - An apparatus | 06-04-2015 |
| 20150126698 | RUBBER COMPOSITION FOR TIRE, TIRE MEMBER, METHOD FOR PRODUCING BIOMASS-DERIVED RUBBER, AND PNEUMATIC TIRE - The present invention provides rubber compositions for tires capable of providing tire components and pneumatic tires having low-temperature properties and abrasion resistance that are equivalent to those of tire components and pneumatic tires formed from conventional synthetic rubber, respectively, while meeting the demand for a sound material-cycle society. The present invention relates to rubber compositions for tires containing a biomass-derived rubber obtained by polymerizing a biomass-derived monomer component, the biomass-derived rubber having a pMC (percent modern carbon) value of 1% or greater as determined in conformity with ASTM D6866-10, and having a Tg (glass transition temperature) value of −120° C. to −80° C. | 05-07-2015 |
| 20150126674 | RUBBER COMPOSITION AND PNEUMATIC TIRE - The present invention provides a rubber composition capable of improving fuel economy and wet grip performance while maintaining good processability, abrasion resistance and handling stability or improving them, as well as a pneumatic tire including the rubber composition. The rubber composition contains carbon black, silica, and a polymer mixture obtained by modifying a polymer derived from a conjugated diene compound and/or an aromatic vinyl compound with a compound containing an ester group and/or a carboxyl group, the polymer mixture having a weight average molecular weight of from 1.0×10 | 05-07-2015 |
| 20150125633 | ARTIFICIAL LAWN - Provided is an artificial lawn that has a high durability and does not undergo fibrillation over a long time. In the artificial lawn, flat filament yarns, which are produced by uniaxially stretching a crystalline plastic material to give a crystal orientation degree of 0.75-0.90, are used as piles ( | 05-07-2015 |
| 20150122383 | OFF-ROAD PNEUMATIC TIRE - An off-road pneumatic tire has a tread having an outer surface forming a tread surface, the tread including a body and multiple blocks projecting from the body substantially outward in radial direction. The blocks have a center block group, a pair of shoulder block groups and a pair of middle block groups. The center group includes center blocks at interval in circumferential direction on plane of equator. Each shoulder group includes shoulder blocks at interval in the circumferential direction on an edge of the tread surface. Each middle group includes middle blocks at interval in the circumferential direction between the center and one shoulder groups. The center group has units each having first, second, third and fourth center blocks in the order of the first, second, third and fourth blocks in the circumferential direction. | 05-07-2015 |
| 20150102522 | METHOD OF PRODUCING ELASTIC GLOVE - In producing an elastic glove made of rubber or resin and having an interior surface flocked with piles through a step for depositing the piles on a film of a latex composition formed on a surface of a mold conformal to a three-dimensional shape of the elastic glove, a water repellent/hydrophilic pile mixture containing water repellent piles in a proportion of 10 to 80 mass % is used as the piles to uniformize a pile embedded state in a rubber or resin film defining the interior surface over the substantially entire surface of the elastic glove. | 04-16-2015 |
| 20150099823 | TREAD RUBBER COMPOSITION AND PNEUMATIC TIRE - Provided are a tread rubber composition that can achieve a balanced improvement in fuel economy, wet-grip performance, and abrasion resistance, and a pneumatic tire including the composition. The tread rubber composition includes: a rubber component; silica; and a silane-coupling agent containing a mercapto group, the rubber component including per 100% by mass thereof 5% by mass or more of a conjugated diene polymer (A), the polymer (A) including a monomer unit derived from a conjugated diene, a monomer unit derived from a compound of formula (1), and a monomer unit derived from a compound of formula (2), at least one end of the copolymer (A) being modified by the following compound (G) or an alkoxysilane compound, the composition including 5-150 parts by mass of the silica per 100 parts by mass of the rubber component, Compound (G): at least one compound selected from the group consisting of compounds containing an optionally-substituted amino group and a carbonyl group and compounds containing an optionally-substituted amino group and a thiocarbonyl group, | 04-09-2015 |
| 20150083299 | PNEUMATIC TIRE - A pneumatic tire includes a tread, sidewalls extending from edges of the tread, clinches extending from the edges of the sidewall, beads positioned on axially inner side of the clinches, a carcass bridging the beads along inner side of the tread and sidewalls, and load support layers positioned on axially inner side of the carcass such that the layers are positioned between the tread and beads. Each bead includes core and main apex, the core has radially outer side surface facing radially outward, the carcass includes carcass ply turned up around the core from inner side toward outer side in axial direction of the tire such that the main portion and turn-up portion are formed in the ply, the turn-up portion has core laminating portion laminated on the radially outer side surface of the core, and the apex is extending radially outward from radially outer side of the laminating portion. | 03-26-2015 |
| 20150083294 | MOTORCYCLE TIRE - A motorcycle tire including a tire structure having a tread having outer surface curved in arc shape such that the outer surface is protruding toward radially outer side of the structure. The tread includes a center region and shoulder regions on sides of the center region, respectively, the center region is spanning 30% of a developed tread width with tire equator at the center of the center region, the tread has main grooves positioned at interval in tire circumferential direction and shoulder sub-grooves positioned in each shoulder region, each main groove is formed in V shape such that the V shape has a pair of inclined portions respectively extending from the tip in the center region toward the shoulder regions in tire rotation direction, and the sub-grooves are formed such that each sub-groove is extending in the circumferential direction and connected to one inclined portion without connecting adjacent main grooves. | 03-26-2015 |
| 20150075692 | PNEUMATIC TIRE - A pneumatic tire includes an inner liner and a carcass ply provided adjacent to the inner liner and having a cord embedded in a rubber layer. The inner liner is composed of a polymer layer stack including a first layer of a polymer composition containing SIBS and a rubber component having a thickness of 0.05 mm to 0.6 mm, and a second layer of a polymer composition containing at least either one of SIS and SIB as well as a rubber component having a thickness of 0.01 mm to 0.3 mm. The second layer is arranged so as to be in contact with the rubber layer of the carcass ply. A distance L from a plane passing through the center of cross section of the cord to the second layer is more than or equal to 0 and less than or equal to (1+D/2) mm where D denotes the diameter of the cord. | 03-19-2015 |
| 20150068668 | BEAD APEX RUBBER-FORMING METHOD, AND BEAD APEX RUBBER-FORMING DEVICE - The present invention forms bead apex rubber with good precision on the outer circumferential surface of the bead core. A molding process, in which unvulcanized rubber is made to flow into a bead apex molding chamber that is surrounded by surfaces that include the outer circumferential surface of a circular bead core and the bead apex rubber is formed directly on the outer circumferential surface of the bead core that is rotating around the core axis, is provided. The molding process comprises: a tip forming step that forms the leading end of the bead apex rubber; a middle section forming step that sequentially forms the bead apex rubber to be continuous with the leading end; and a joining step to join the back end and the leading end of the bead apex rubber by inflowing the unvulcanized rubber therebetween. | 03-12-2015 |
| 20150053325 | PNEUMATIC TIRE - A pneumatic tire has a side wall having a side surface and dimples formed on the side surface. The side surface has the tire maximum width point, the dimples are aligned along circumferential rows in concentric form with respect to the tire axis such that the dimples form lateral ribs and longitudinal ribs, the lateral ribs each have radially outer side surface and radially inner side surface and include first and second ribs, the first rib is formed such that the height from the dimple bottom at the inner side surface and the height from the dimple bottom at the outer side surface are equal, the second rib is formed such that the height from the dimple bottom at the inner side surface is greater than the height from the dimple bottom at the outer side surface, and the second rib is positioned radially inward from the maximum width point. | 02-26-2015 |
| 20150038657 | PREPARATION PROCESS OF BRANCHED CONJUGATED DIENE POLYMER - There is provided a process for preparing a branched conjugated diene polymer by copolymerizing 1 to 100% by weight of a branched conjugated diene compound (1) monomer: | 02-05-2015 |
| 20150031839 | HYDROGENATED BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE - There is provided a hydrogenated branched conjugated diene copolymer prepared by copolymerizing 1 to 99% by weight of a branched conjugated diene compound (1): | 01-29-2015 |
| 20150013872 | PNEUMATIC TIRE - The present invention provides a pneumatic tire having excellent durability. Provided is a pneumatic tire including a sidewall and a carcass, the sidewall being produced from a rubber composition for a sidewall which has a specific sulfur content, the carcass being produced from a carcass cord covered with a rubber composition for a carcass topping, and the sulfur contents of the rubber composition for a sidewall and the rubber composition for a carcass topping satisfying a specific relationship. Provided is a pneumatic tire including a clinch and a carcass, the clinch being produced from a rubber composition for a clinch which has a specific sulfur content, the carcass being produced from a carcass cord covered with a rubber composition for a carcass topping, and the sulfur contents of the rubber composition for a clinch and the rubber composition for a carcass topping satisfying a specific relationship. | 01-15-2015 |
| 20150011676 | RUBBER COMPOSITION FOR TIRE AND PNEUMATIC TIRE - A rubber composition for a tire includes a rubber component, aluminum hydroxide particles having an average particle diameter in a range of 1.5 μm or smaller and a nitrogen adsorption specific surface area of 3˜60 m | 01-08-2015 |
| 20150007917 | PNEUMATIC TIRE - A pneumatic tire is provided with a center land portion between two zigzag crown main grooves, and two middle land portions between two zigzag shoulder main grooves and the two crown main grooves. Each center block is provided with center sipes between which a central part defining the maximum width of the center block is formed. The middle land portion is divided into middle blocks by alternate, oppositely inclined first middle axial grooves and second middle axial grooves. Each middle block is provided with nonparallel middle sipes. | 01-08-2015 |
| 20150007916 | PNEUMATIC TIRE - [Object] A pneumatic tire | 01-08-2015 |
| 20140378593 | RUBBER COMPOSITION FOR UNDERTREAD, AND PNEUMATIC TIRE - The present invention provides a rubber composition for an undertread, which has improved in processability, fuel economy, and tensile properties in a balanced manner, and also provides a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for an undertread, including: a rubber component containing a modified natural rubber having a phosphorus content of 200 ppm or less; and carbon black and/or a white filler, wherein the modified natural rubber is contained in an amount of 5% by mass or more per 100% by mass of the rubber component. | 12-25-2014 |
| 20140373989 | TIRE - The present invention aims to provide a tire having improved abrasion resistance and appearance, as well as reduced rolling resistance and therefore improved fuel economy. The present invention relates to a tire including a tread, the tread containing 0.9 to 1.5% by mass of a wax, 0.9 to 1.5% by mass of an amine antioxidant, 0.3 to 1.0% by mass of a quinoline antioxidant, and a tread rubber component containing 3% by mass or more of a polybutadiene rubber, the tread having a rubber thickness between a tread groove bottom and an outermost belt-reinforcing layer of 0.1 to 2.0 mm. | 12-25-2014 |
| 20140371415 | BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE - There is provided a branched conjugated diene copolymer prepared by copolymerizing 1 to 99% by weight of a branched conjugated diene compound (1): | 12-18-2014 |
| 20140371372 | TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE - The present invention provides a rubber composition for tires which enables a balanced improvement in rolling resistance, abrasion resistance, and wet-skid performance. The present invention relates to a rubber composition for tires, including a rubber blend including a diene rubber A modified with a specific acrylamide compound, and a diene rubber B modified with either a combination of a specific silicon or tin compound and a specific modifying compound or with the modifying compound, the combined rubbers A and B having a weight average molecular weight of 300,000 to 1,400,000; and a specific silica. | 12-18-2014 |
| 20140357824 | BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE - There is provided a branched conjugated diene copolymer prepared by copolymerizing 1 to 99% by weight of a branched conjugated diene compound (1): | 12-04-2014 |
| 20140345767 | PNEUMATIC TIRE - A pneumatic tire comprises a tread portion provided with blocks each provided with a first variable depth sipe and a second variable depth sipe each having both axial ends opened at edges of the block on both sides thereof in the tire axial direction. In each block, a shallow portion of the first variable depth sipe overlaps, in the tire axial direction, with a deep main portion of the second variable depth sipe. an axial groove dividing the blocks is provided with a tie bar overlapping, in the tire axial direction, with the deep main portion of the adjacent variable depth sipe. | 11-27-2014 |
| 20140342892 | SEMICONDUCTIVE ROLLER - A semiconductive roller having good semiconductivity as a charging roller or a developing roller is described. The semiconductive roller includes an oxide film having excellent characteristics as a protective film, and in particular, hardly causes an image defect of white stripes associated with tackiness in an image formed in a storage test in an environment of high temperature and high humidity. The semiconductive roller includes a semiconductive rubber composition formed by mixing a base polymer with a triazine crosslinker and a sulfur-based crosslinking component as a crosslinking component for crosslinking the base polymer, wherein the base polymer is a mixture of an epichlorohydrin rubber E and a diene rubber D having a mass ratio of E/D of 50/50 to 80/20. The semiconductive roller also has an oxide film formed on its outer peripheral surface by ultraviolet irradiation. | 11-20-2014 |
| 20140341354 | METHOD OF EVALUATING NEUTRON SCATTERING LENGTH DENSITY - The present invention provides a method of evaluating the neutron scattering length density, capable of accurately determining the neutron scattering length density. The present invention relates to a method of evaluating the neutron scattering length density of scatterers in a material, including determining the neutron scattering length density based on a scattering intensity curve obtained by neutron scattering measurement, with use of a scattering intensity curve obtained by X-ray scattering measurement. | 11-20-2014 |
| 20140339777 | GASKET FOR SYRINGE - The present invention provides a gasket for syringes which can be stored for a long time without any chemical liquid leakage. The present invention relates to a gasket for syringes, including a film laminated to a surface of the gasket, the film having a liquid-contacting portion and a sliding portion, the liquid-contacting portion being thicker than the sliding portion. Preferably, the liquid-contacting portion has a thickness at least 1.2 times the thickness of the sliding portion. | 11-20-2014 |
| 20140339776 | MEDICAL GASKET - The present invention aims to provide a gasket which reduces the clamping force required to fit a plunger rod into the gasket, while maintaining a tight fit therebetween. The present invention relates to a medical gasket including a female screw portion to fit a plunger, on the side opposite to a drug contact surface, the female screw portion having roots or crests which gradually increase in diameter from the drug contact surface side toward the opposite plunger side. | 11-20-2014 |
| 20140338818 | METHOD FOR MANUFACTURING MOTORCYCLE TIRE - A method for manufacturing a motorcycle tire comprises: building a raw tire main body, building a breaker, sticking the breaker, and building a band. The building of the breaker comprises: moving two cylindrical support rings to operating positions, swelling the raw tire main body to have its crown portion protruding from the support rings through a gap therebetween, and winding a breaker ply material on the support rings to form a cylindrical breaker ply whose inner surface is adhered to the raw tire main body. The sticking of the breaker comprises: expanding a profiled deck to swell the raw tire main body into a second swollen state, and turning down both edge portions of the breaker while being supported by the profiled deck. The building of the band comprises: spirally winding a tape on the curved breaker ply while being supported by the profiled deck. | 11-20-2014 |
| 20140338804 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion provided with at least one circumferentially extending main groove, and at least one lateral groove extending from the main groove. The at least one lateral groove comprises a bottom, and at least one stepwise groove wall that includes at least one level part, wherein the number of level part is not more than three. In a cross-sectional view of the lateral groove, a depth Da from a ground contacting surface of the tread portion to a radially innermost level part is in a range of from 50% to 80% a maximum groove depth D4 of the lateral groove, and a width Wa from the radially innermost level part to a groove edge of the stepwise groove wall measured along in a groove width direction is in a range of from 50% to 150% the depth Da. | 11-20-2014 |
| 20140332133 | HEAVY DUTY TIRE - Shoulder drop wear and triangular wear are prevented. A heavy duty tire which includes a shoulder block includes a first arc portion having a radius of curvature, in which a tread contour includes an arc center at a tire equatorial surface at a 5% internal pressure state; and a second arc portion having a radius of curvature of which intersects with the first arc portion at an intersection. An arc center of the second arc portion is located on a radial line passing through the intersection. A ratio of the radii of curvature is between 0.2 and 0.5. A ratio between a tire radial direction distance from an equatorial point to a tread edge and a radial direction distance from the equatorial point to a virtual tread edge on a line extending from the first arc portion is equal to or higher than 0.5 or lower than 1.0. | 11-13-2014 |
| 20140332127 | AIRLESS TIRE - An airless tire has a tread ring having a footprint, a hub positioned on a radially inner side of the tread ring and formed to be fixed to an axle, and a spoke connecting the tread ring and the hub and having a tread connection portion connected to an inner-circumferential surface of the ring and a hub connection portion connected to an outer-circumferential surface of the hub. The ring and the tread connection portion of the spoke satisfy 0≦E1≦0.5, 0| 11-13-2014 | |
| 20140329931 | RUBBER COMPOSITION AND PNEUMATIC TIRE - Provided are a rubber composition improving wet-grip performance and its temperature dependence while ensuring good fuel economy, and a pneumatic tire including the composition. The composition includes, per 100% by mass of a rubber component: 5-55% by mass of an aromatic vinyl compound/conjugated diene compound copolymer (A) having an aromatic vinyl compound content of at least 5% by mass but less than 15% by mass and a vinyl bond content in a conjugated diene compound moiety of 10-70 mol %; and 5-75% by mass of an aromatic vinyl compound/conjugated diene compound copolymer (B) having an aromatic vinyl compound content of at least 15% by mass but less than 30% by mass and a vinyl bond content in a conjugated diene compound moiety of 10-70 mol %, and also includes, per 100 parts by mass of the rubber component, 10-150 parts by mass of a silica having a N | 11-06-2014 |
| 20140329930 | RUBBER COMPOSITION AND PNEUMATIC TIRE - Provided are a rubber composition achieving balanced improvements in fuel economy, wet-grip performance, abrasion resistance, and handling stability, and a pneumatic tire including the composition. The rubber composition includes a rubber component including at least 95% by mass of conjugated diene polymers having a Tg of −75-0° C. and a Mw of 1.5×10 | 11-06-2014 |
| 20140326928 | RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE - Provided are a rubber composition for a tire which achieves a balanced improvement in tensile properties at break and fuel economy while providing excellent conductivity; and a pneumatic tire including the rubber composition. The present invention relates to a rubber composition for a tire, including: a rubber component; a carbon black having a nitrogen adsorption specific surface area of 20 to 110 m | 11-06-2014 |
| 20140326386 | PNEUMATIC TIRE - Provided is a pneumatic tire ensuring conductivity while being reduced in weight, and having good fuel efficiency and handling stability. The tire includes a sidewall and a carcass, the sidewall including a laminate of two or more rubber layers including an inner sidewall layer ( | 11-06-2014 |
| 20140326382 | PNEUMATIC TIRE - A pneumatic tire comprising a tread portion provided with a middle land portion | 11-06-2014 |
| 20140326379 | HEAVY DUTY TIRE - A heavy duty tire includes a tread portion provided with a pair of circumferential main grooves including at least one zigzag groove, lateral grooves extending between the main grooves to form center blocks therebetween, and lug grooves. Each lug groove includes an axially inner portion connecting to the zigzag groove while curving toward a first circumferential direction of the tire. The lug groove has a first groove edge disposed on a side of the first circumferential direction and a second groove edge facing against the first groove edge. The first groove edge is connected to an axially outer groove edge of the zigzag groove. The second groove edge is connected to an axially inner groove edge of the zigzag groove. The lug groove includes a constant groove width, and a groove-bottom width smoothly decreasing axially inward from the tread edge. | 11-06-2014 |
| 20140323660 | RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE - The present invention provides a rubber composition for tires which achieves a balanced improvement in rolling resistance, abrasion resistance, and wet-skid performance while providing excellent processability; and a pneumatic tire including the rubber composition. The present invention relates to a rubber composition for tires, including: a modified diene rubber A which has been terminally modified with a specific acrylamide compound; a modified diene rubber B which has been modified with a silicon or tin compound and a specific modifying compound or with the modifying compound; and a silane coupling agent containing a mercapto group, the modified diene rubbers A and B, taken as a whole, having a weight average molecular weight falling within a specific range. | 10-30-2014 |
| 20140322468 | SURFACE MODIFICATION METHOD AND SURFACE-MODIFIED ELASTIC BODY - Provided are methods for surface-modifying a rubber vulcanizate or a thermoplastic elastomer, the methods forming a surface with a chemically fixed lubricant instead of resin coating which has drawbacks, such as that the coating is, for example, removed or peeled during the movement within a vessel, whereby the lubricity is reduced. The present invention relates to a method for surface-modifying an object of a rubber vulcanizate or a thermoplastic elastomer, the method including step 1 of forming polymerization initiation points on a surface of the object, and step 2 of radically polymerizing a deliquescent monomer starting from the polymerization initiation points by irradiation with ultraviolet light having a wavelength within the range of 300 to 400 nm, to grow polymer chains on the surface of the object. | 10-30-2014 |
| 20140311649 | HEAVY DUTY PNEUMATIC TIRE - A heavy duty pneumatic tire includes a clinch portion extending from the sidewalls to the beads. A concave curved surface extends on an outer surface of the clinch portion in a circumferential direction. A convex curved surface is engageable with the concave curved surface. A ratio R | 10-23-2014 |
| 20140311638 | PNEUMATIC TIRE - A pneumatic tire includes a tread portion with an unsymmetrical tread pattern that includes a circumferentially extending first main groove at a nearest side of an inboard tread edge, a circumferentially extending second main groove adjacent to the first main groove, and a middle land portion arranged therebetween. The middle land portion is provided with a plurality of inclined grooves, a plurality of inboard middle lateral grooves including one end communicated with the first main groove and the other end communicated with the inclined groove, and a plurality of outboard middle lateral grooves including one end communicated with the second main groove and the other end communicated with the inclined groove. Respective groove center points of the inboard middle lateral grooves are arranged in different places in the circumferential direction of the tire from respective groove center points of the outboard middle lateral grooves. | 10-23-2014 |
| 20140309971 | SIMULATION METHOD FOR MACROMOLECULAR MATERIAL - A simulation method for a macromolecular material comprises: a first calculation process for computing a Rouse parameter of a coarse-grained model; a second calculation process for computing a Rouse parameter of the a all-atom model; and a convert process for converting a unit system employed in a molecular dynamics calculation made by the use of the coarse-grained model into a unit system employed in the macromolecular chain, based on the Rouse parameter of the coarse-grained model and the Rouse parameter of the all-atom model. | 10-16-2014 |
