Patent application number | Description | Published |
20090101003 | Reciprocating compressor - A reciprocating compressor comprises: a cylinder having an oil pocket on an inner circumferential surface of a piston insertion hole for inserting a piston with a predetermined width and depth; and a piston having a bearing portion protruding so as to slidably contact an inner circumferential surface of the piston insertion hole, and inserted into the piston insertion hole of the cylinder, wherein the bearing portion is formed to have a length shorter than that of the oil pocket of the cylinder. Accordingly, a frictional loss between the cylinder and the piston is reduced. | 04-23-2009 |
20090214248 | IMAGE FORMING APPARATUS - An image forming apparatus having a mounting/demounting structure between a main body and an image carrying unit. The image forming apparatus includes a main body provided with a first electrical connecting part, an image carrying unit removably mounted in the main body and provided with a second electrical connecting part, and a guide device to guide the image carrying unit in an insertion direction and a lateral direction so that the second electrical connecting part of the image carrying unit is connected to the first electrical connecting part of the main body. Accordingly, interference between the image carrying unit and an inner side surface of the main body is decreased, and mounting performance is enhanced. | 08-27-2009 |
20090214251 | IMAGE FORMING APPARATUS AND FRAME UNIT THEREOF - An image forming apparatus includes an image carrier, an exposure unit to form a latent image on the image carrier by light, and a particle entering prevention device to prevent particles from entering an optical path between the exposure unit and the image carrier. The particle entering prevention device includes a particle storage unit disposed in a vicinity of the optical path, to store the particles therein. | 08-27-2009 |
20090214277 | DEVELOPER STORAGE DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - A developer storage device and an image forming apparatus having the same include a developer storage part including a first storage part and a second storage part having widths different from each other, and a first developer conveying member to convey a developer stored in the first storage part to the second storage part in a diagonal direction. The first developer conveying member includes conveying elements extended slantingly with respect to a width direction of the developer storage part. An angle between the conveying elements and the width direction of the developer storage part is determined depending on relative positions of the first storage part and the second storage part. Accordingly, the developer storage device can effectively convey a developer by designing the developer conveying member adequately for an overall shape or structure of the developer storage device. | 08-27-2009 |
20090304413 | IMAGE FORMING APPARATUS, DEVELOPING DEVICE AND DEVELOPER CARTRIDGE THEREOF - An image forming apparatus, a developing device and a developer cartridge are disclosed. The developer cartridge includes a cartridge housing and a developer delivery unit to deliver a developer received in the cartridge housing. The developer delivery unit includes a delivery member and a contact portion to come into contact with the delivery member. The contact between the contact portion and the delivery member form a length longer than a straight line connecting one end of the contact portion to the other end. | 12-10-2009 |
20120312265 | CAM FOLLOWER WITH IMPROVED STRUCTURE TO INCREASE LIMIT LOAD - Disclosed is a cam follower of which the structure is improved such that the limit load can be increased. The cam follower is one which moves relative to a cam, mediated by a liquid lubricant, wherein a plurality of recesses are provided on the contact surface of the cam follower which makes contact with the cam, and the depth of the plurality of recesses of the contact surface is between 0.005 and 0.03 mm. By providing the plurality of recesses on the contact surface of the cam follower which makes contact with the cam, the present invention makes it possible to improve the state of lubrication between the cam follower and the cam which move relative to each other mediated by the liquid lubricant and to reduce the heat and the wear which occur at the interface between the same. | 12-13-2012 |
20130129385 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device that attaches/detaches to/from a main body of an image forming apparatus includes a photosensitive drum, a charging roller to rotate while contacting the photosensitive drum to charge a surface of the photosensitive drum to a uniform potential, and a separating member to rotate between a first position where the charging roller is separated from the photosensitive drum and a second position where the charging roller contacts the photosensitive drum. The separating member includes a body into which a rotary shaft of the charging roller is inserted to be rotatable, and a contact portion extending from the body and contacting the surface of the photosensitive drum when the separating member is located at the first position so as to separate the charging roller from the photosensitive drum, wherein the contact portion includes a friction member including rubber. | 05-23-2013 |
20130220113 | CYLINDER FORMED WITH UNEVEN PATTERN ON SURFACE OF INNER WALL - The present disclosure relates to a cylinder having an inner wall formed with fine uneven patterns to improve durability. The fine uneven patterns according to the present disclosure increases oil film pressure between a piston ring and an inner wall of the cylinder, and smoothly supplies engine oil to where the engine oil is insufficient, thereby reducing abrasion between the piston ring and the inner wall of the cylinder. | 08-29-2013 |
20130239741 | Rocker Arm Shaft with Improved Abrasion Resistance and Rocker Arm Shaft/Bush Assembly Comprising Same - The present disclosure relates to a rocker arm shaft and a rocker arm shaft/bush assembly including a rocker arm shaft, and a rocker arm bush which encloses the rocker arm shaft, in which the rocker arm shaft has a surface on which minutely processed concave-convex portions are formed, thereby achieving excellent lubricative characteristics and as a result having excellent abrasion resistance. | 09-19-2013 |
Patent application number | Description | Published |
20080291611 | FLAT DISPLAY AND FLAT DISPLAY APPARATUS HAVING THE SAME - A flat display including a display main body to receive a display panel to display an image and a receiving member which is formed with receiving holes disposed at opposite lateral sides of the display main body. | 11-27-2008 |
20100235240 | AUTOMATIC VENDING APPARATUS FOR PROVIDING ADVERTISEMENT AND METHOD THEREOF - An automatic vending apparatus and an advertisement method thereof are provided. The automatic vending apparatus receives advertisement content and an advertisement schedule through a network, stores the received information, and replays the stored advertisement content on a touch screen in accordance with the stored advertisement schedule. Since it is possible to provide advertisement through automatic vending apparatuses according to a predetermined, advertisement can be provided in a more systematic, various and efficient manner. | 09-16-2010 |
20130163163 | DISPLAY APPARATUS - A display apparatus including a support configured to support a display unit, and a cover formed of a flexible sheet and configured to cover the support, thereby improving the external appearance of the rear side of the display apparatus through the cover. | 06-27-2013 |
20140092568 | DISPLAY DEVICE WITH HEIGHT ADJUSTMENT STRUCTURE AND TERMINAL HAVING THE SAME - A display device and a terminal having the same are disclosed. The terminal includes a base including a circuit board provided therein, and upper and lower housings, a support configured with one side combined with at least a portion of the lower housing and the other side having a head part configured for combination with a main body of a display, a first hole located on the upper housing and configured for combination with the support, and a second hole located on the circuit board and configured for combination with the support. The display device and the terminal having the same increase combining force between the support and the base and may use the same support and base in main bodies having various sizes, thus simplifying a manufacturing process and reducing part and assembly costs. | 04-03-2014 |
20140192505 | HINGE DEVICE AND DISPLAY APPARATUS WITH A HINGE DEVICE USING A SLIDING POSITION - A display apparatus which enables a display to rotate with a tilting angle across a large range is provided. This allows a user to, conveniently use the display apparatus in order to enable quality of use to be improved during a tilting operation, and slim and elegant appearance to be implemented. The display apparatus includes a display configured to display an image on the front surface, a stand supporting the display, and a hinge device connecting the display to the stand such that the display may be tilted, wherein the hinge device includes a guide member formed on a rear surface of the display, a latch fixed to the stand and to slide along the guide member when the display is tilted, and a fixing member fixing the display not to move when an external force applied to the display is removed. | 07-10-2014 |
Patent application number | Description | Published |
20110257363 | METHOD FOR PREPARING POLYARYLENE SULFIDE - The present invention relates to a method for preparing polyarylene sulfide, in which the polyarylene sulfide is prepared by a polymerization reaction of reactants including a diiodo aromatic compound and a sulfur compound, the method including: further adding 0.01 to 10.0 wt. % of diphenyl disulfide with respect to the weight of the polyarylene sulfide to the reactants to form the polyarylene sulfide having a melting point of 265 to 320° C. | 10-20-2011 |
20110269879 | HIGH-STRENGTH POLYPHENYLENE SULFIDE/POLYETHYLENE TEREPHTHALATE BLEND RESIN COMPOSITION AND METHOD FOR PREPARING THE SAME - The present invention relates to a high-strength inflammable blend resin composition including a polyphenylene sulfide resin and a polyethylene terephthalate resin. More specifically, the resin composition of the present invention includes: a basic blend resin containing 10 to 80 wt. % of a polyphenylene sulfide resin, and 20 to 90 wt. % of a polyethylene terephthalate resin; and 0.1 to 20 parts by weight of a modified polystyrene or a styrene-based elastomer with respect to 100 parts by weight of the basic blend resin. | 11-03-2011 |
20110269935 | METHOD FOR PREPARING POLYARYLENE SULFIDE WITH REDUCED FREE IODINE CONTENT - The present invention relates to a method for preparing polyarylene sulfide with a reduced free iodine content. More specifically, the method for preparing polyarylene sulfide includes: (a) polymerizing reactants including a diiodo aromatic compound and a sulfur compound to form a polyarylene sulfide; and (b) maintaining the polyarylene sulfide product at 100 to 260° C. for heat-setting. The preparation method of the present invention effectively reduces the free iodine content of the polyarylene sulfide to prevent potential corrosion of facilities for the subsequent process and improves the properties of the polyarylene sulfide product such as thermal stability, so the method can be usefully applied to industrial fields in regard to the preparation of polyarylene sulfide. | 11-03-2011 |
20120302726 | METHOD FOR PREPARING POLYARYLENE SULFIDE HAVING REDUCED IODINE CONTENT - This disclosure relates to a method for preparing polyarylene sulfide having reduced iodine content while having excellent thermal stability, specifically to a method comprising polymerization reacting a composition comprising diiodide aromatic compounds, sulfur compounds, and a polymerization terminator. The preparation method may effectively reduce iodine content of polyarylene sulfide to prevent corrosion of post processing equipment, improve properties of polyarylene sulfide such as thermal stability, and the like, and thus, it may be usefully applied in the industrial field relating to preparation of polyarylene sulfide. | 11-29-2012 |
20120322971 | RECYCLABLE POLYARYLENE SULFIDE AND PREPARATION METHOD THEREOF - This disclosure relates to recyclable polyarylene sulfide that may exhibit and maintain excellent mechanical properties, particularly does not exhibit decrease in melt viscosity when it is molten, and thus, exhibit little deterioration of mechanical properties, and a method for preparing the same. | 12-20-2012 |
20120329983 | POLYARYLENE SULFIDE HAVING REDUCED OUTGASSING AND PREPARATION METHOD THEREOF - This disclosure relates to polyarylene sulfide that may exhibit excellent processability at low temperature, decrease outgassing and flash or burr generation, and thus may satisfactorily mold a product requiring high molding accuracy, and a method for preparing the same. Specifically, the polyarylene sulfide includes an arylene sulfide repeat unit and an arylene disulfide repeat unit, wherein the weight ratio of the arylene sulfide repeat unit:arylene disulfide repeat unit is 1:0.0001 to 1:0.05. | 12-27-2012 |
20120329984 | POLYARYLENE SULFIDE AND PREPARATION METHOD THEREOF - This disclosure relates to polyarylene sulfide that may exhibit and maintain excellent properties and a method for preparing the same, wherein the polyarylene sulfide is in the form of pellet of 2 to 10 mm size immediately after melt polymerization, and has residual solvent content of 300 ppm or less, based on the total weight of resin. | 12-27-2012 |
20130115438 | POLYARYLENE SULFIDE HAVING EXCELLENT PROCESSABILITY AND PREPARATION METHOD THEREOF - The present invention relates to polyarylene sulfide, in which a ratio of a peak area of a polymer chain of a second polyarylene sulfide having a lower molecular weight than the maximum peak molecular weight to a peak area of a polymer chain of a first polyarylene sulfide having a higher molecular weight than the maximum peak molecular weight is 1.3 or less in the molecular weight distribution of the polyarylene sulfide, as measured by gel permeation chromatography using polystyrene as a standard, and a preparation method thereof. This polyarylene sulfide exhibits excellent processability and generates no burrs (flashes) or the like, and can satisfactorily mold a product requiring high molding precision. | 05-09-2013 |
20140345453 | CYLINDER DEVICE HAVING IMPROVED WEAR RESISTANCE THROUGH OPTIMAL ARRANGEMENT OF FINE TEXTURES - There is provided a cylinder device having optimal arrangement of fine textures and optimal surface roughness capable of reducing wear of a cylinder bore side and a piston ring by processing fine textures in an optimal selection region of the cylinder bore side to improve lubrication characteristics between the piston ring and the cylinder bore side while reducing engine oil consumption by processing surface roughness of the cylinder bore side to an optimal status. | 11-27-2014 |
20140350215 | METHOD FOR PREPARING POLYARYLENE SULFIDE HAVING REDUCED IODINE CONTENT - This disclosure relates to a method for preparing polyarylene sulfide having reduced iodine content while having excellent thermal stability, specifically to a method comprising polymerization reacting a composition comprising diiodide aromatic compounds, sulfur compounds, and a polymerization terminator. The preparation method may effectively reduce iodine content of polyarylene sulfide to prevent corrosion of post processing equipment, improve properties of polyarylene sulfide such as thermal stability, and the like, and thus, it may be usefully applied in the industrial field relating to preparation of polyarylene sulfide. | 11-27-2014 |
20150141550 | POLYARYLENE SULFIDE RESIN COMPOSITION AND A PREPARATION METHOD THEREOF - The present invention relates to a polyarylene sulfide resin composition having excellent impact resistance in which a polyarylene sulfide resin having a specific end group, an epoxy-containing olefin-based elastomer, and/or an organic or inorganic filler are included, and a preparation method thereof. | 05-21-2015 |
20150152227 | RECYCLABLE POLYARYLENE SULFIDE AND PREPARATION METHOD THEREOF - This disclosure relates to recyclable polyarylene sulfide that may exhibit and maintain excellent mechanical properties, particularly does not exhibit decrease in melt viscosity when it is molten, and thus, exhibit little deterioration of mechanical properties, and a method for preparing the same. | 06-04-2015 |
20150197605 | POLYARYLENE SULFIDE AND A PREPARATION METHOD THEREOF - The present invention relates to a polyarylene sulfide having more improved miscibility with other polymer materials or fillers, and a method of preparing the same. At least part of end groups of the main chain of the polyarylene sulfide is carboxyl group (—COOH) or amine group (—NH | 07-16-2015 |
20150218376 | POLYARYLENE SULFIDE RESIN COMPOSITION AND FORMED ARTICLE - The present invention relates to a polyarylene sulfide resin composition having good processability and showing excellent properties due to its more improved miscibility with other polymer materials or fillers, and a formed article. Such polyarylene sulfide resin composition includes a polyarylene sulfide including a disulfide repeating unit in the repeating units of the main chain; and at least one component selected from the group consisting of a thermoplastic resin, a thermoplastic elastomer, and a filler. | 08-06-2015 |
20150353687 | METHOD FOR PREPARING POLYARYLENE SULFIDE WITH REDUCED FREE IODINE CONTENT - The present invention relates to a method for preparing polyarylene sulfide with a reduced free iodine content. More specifically, the method for preparing polyarylene sulfide includes: (a) polymerizing reactants including a diiodo aromatic compound and a sulfur compound to form a polyarylene sulfide; and (b) maintaining the polyarylene sulfide product at 100 to 260° C. for heat-setting. The preparation method of the present invention effectively reduces the free iodine content of the polyarylene sulfide to prevent potential corrosion of facilities for the subsequent process and improves the properties of the polyarylene sulfide product such as thermal stability, so the method can be usefully applied to industrial fields in regard to the preparation of polyarylene sulfide. | 12-10-2015 |
20160068629 | POLYESTER BASED COPOLYMER RESIN AND MOLDED PRODUCT COMPRISING THE SAME - There are provided a polyester based copolymer resin capable of having an excellent shrinkage rate and being heat-shrunk at a low temperature, and a molded product comprising the same. The polyester based copolymer resin includes a dicarboxylic acid-derived residue including a residue derived from an aromatic dicarboxylic acid; and a diol-derived residue including a predetermined residue derived from 4-(hydroxymethyl)cyclohexylmethyl 4′-(hydroxymethyl)cyclohexane carboxylate and a predetermined residue derived from 4,4-(oxybis(methylene)bis)cyclohexane methanol. | 03-10-2016 |