Patent application number | Description | Published |
20090142087 | IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - An image forming method includes detecting a toner degradation state by detecting an image density on an electrostatic latent image carrier with high sensitivity and low cost. The degraded toner is processed based on the detected information, so that the waste toner can be reduced and a good image can be obtained. An image density of an image that is transferred with a predetermined reference electric field is detected in a first detecting step. An image density of an image that is transferred with an electric field that is smaller or greater than the reference electric field is detected in a second detecting step. A processing step of processing the degraded toner is performed on the basis of the image density detected by each of the detecting steps. | 06-04-2009 |
20120045237 | IMAGE FORMING APPARATUS - An image forming apparatus includes a transfer bias generator including a transfer bias supply that supplies a transfer bias to a transfer nip formed between an image carrier and a first rotary body, and a controller that detects a toner adhesion amount at a predetermined region of the image carrier located immediately upstream from the transfer nip and having a predetermined length in a moving direction of the image carrier. The transfer bias generator outputs at least an alternating current component under one of constant voltage control and constant current control and changes a target output value of the alternating current component according to the toner adhesion amount detected by the controller. | 02-23-2012 |
20120045259 | TRANSFER DEVICE, IMAGE FORMING APPARATUS, AND TRANSFER METHOD - A transfer device includes an image carrier that carries a toner image; a nip forming member that forms a transfer nip between the nip forming member and the image carrier by contacting with a front surface of the image carrier; and a transfer bias applying unit that applies a transfer bias, thereby transferring the toner image carried on the image carrier to a recording material at a position of the transfer nip. The transfer bias applying unit applies the transfer bias in which an AC component and a DC component are superimposed and in which a peak-to-peak voltage of the AC component is larger than 6 times an absolute value of a voltage of the DC component. | 02-23-2012 |
20120230715 | TRANSFER DEVICE AND IMAGE FORMING APPARATUS - According to an embodiment, a transfer device includes: an image carrier from which an image is transferred onto a transfer medium using electrostatic toner, the image carrier being applied with a direct current voltage superimposed with an alternating current (AC) voltage as a transfer bias. An output voltage of a power source for applying the voltage is controlled so that a current level of a direct current component output from the power source is kept at a specified current level. | 09-13-2012 |
20130148993 | IMAGE FORMING APPARATUS - An image forming apparatus includes a nip forming member and a transfer bias output device that outputs a transfer bias to form a transfer electric field in a transfer nip between the nip forming member and an intermediate transfer member. Upon transfer of a composite toner image including a particular toner image onto a recording medium in the transfer nip, the transfer bias output device outputs the transfer bias including a first superimposed bias in which a direct current (DC) component is superimposed on an alternating current (AC) component. Upon transfer of the composite toner image without the particular toner image onto the recording medium in the transfer nip, the transfer bias output device outputs one of the transfer bias including a second superimposed bias having a peak-to-peak value of the AC component smaller than that of the first superimposed bias and the transfer bias including only the DC component. | 06-13-2013 |
20140010562 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes a transfer member configured to abut against an image carrier for carrying a toner image to form a transfer nip; and a power supply configured to output a bias voltage for transferring the toner image on the image carrier onto a recording medium nipped in the transfer nip. The bias voltage includes a first voltage for transferring the toner image from the image carrier onto the recording medium in a transfer direction and a second voltage having an opposite polarity of the first voltage, the first and the second voltages being alternately output. A time-averaged value of the bias voltage is set to a polarity in the transfer direction and is set in the transfer direction side with respect to a median between a maximum and a minimum of the bias voltage. | 01-09-2014 |
20140169817 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes an image carrier to carry a toner image, a transfer member to form a transfer nip by contacting the image carrier surface, and a power supply to output a voltage to the recording material captured in the transfer nip so as to transfer the toner image formed on the image carrier surface. The voltage is switching alternately between a voltage in the transfer direction and a voltage opposite to the voltage in the transfer direction, and a time average value (Vave) of the voltage is set to have a polarity of the transfer direction, and is set to a value in the transfer voltage side, and a change mode to change a cycle of the voltage output from the power supply can be changed based on the toner deterioration information which determines the deterioration status of the toner. | 06-19-2014 |
20150286168 | TRANSFER DEVICE WITH TRANSFER VOLTAGE UNIT AND IMAGE FORMING APPARATUS USING THE SAME - According to an embodiment, provided is a transfer device including: a nip forming member that abuts against a surface of an image carrier carrying a toner image; and a transfer voltage application unit that applies a transfer voltage including a DC component and an AC component. The transfer voltage is an alternating voltage in which a supply voltage having polarity in a transfer direction and a return voltage having polarity opposite. A time average value Vave of the transfer voltage is set to be at polarity in the transfer direction and is set to be closer to a peak value Vt of the supply voltage relative to a center value Voff between a maximum and minimum value. An absolute value of the peak value Vr of the return voltage is set to be larger than an absolute value of the time average value Vave. | 10-08-2015 |
Patent application number | Description | Published |
20100076158 | CURABLE POLYMER COMPOSITION - There is provided a curable polymer composition being curable quickly to form a cured article having excellent adhesion and followability to a substrate and at least comprising (A) an acrylic copolymer having a hydrogen atom bonded to a silicon atom, (B) a compound having at least two aliphatic unsaturated bonds in one molecule thereof, (C) a fluoroolefin copolymer comprising vinylidene fluoride as main component, and (D) a catalyst for hydrosilylation reaction. | 03-25-2010 |
20100113700 | CURABLE FLUORINE-CONTAINING POLYMER COMPOSITION - There is provided a curable fluorine-containing polymer composition which is quickly cured at relatively low temperatures by hydrosilylation reaction and provides a coating film which has high hardness, excellent solvent resistance and flexibility. The curable fluorine-containing polymer composition comprises a fluorine-containing polymer comprising a fluorinated ethylenic monomer unit and a non-fluorinated ethylenic monomer unit, in which a part or the whole of the non-fluorinated ethylenic monomer units is a unit represented by the formula: | 05-06-2010 |
20100310496 | METHOD OF PRODUCING AMINO ACID-MODIFIED ORGANOPOLYSILOXANE EMULSIONS - The present invention relates to an amino acid-modified organopolysiloxane emulsion obtainable by reacting (a) a carboxy-unprotected amino acid, and (b) organopolysiloxane having an epoxy group in the molecule in an aqueous medium in the presence of a surfactant, is incorporated in a cosmetic product. The present invention also relates to the simple and highly efficient production of emulsions of amino acid-modified polysiloxane, as well as the use of the emulsions as beautifying components. | 12-09-2010 |
20120237583 | Linear And Cyclic Siloxanes And Cosmetic Compositions Made Thereof - The present invention relates to a novel organopolysiloxane having a specified structure and a cosmetic containing the aforementioned organopolysiloxane. The novel organopolysiloxane according to the present invention is volatile, possesses stability at low temperature, provides superior glossiness, and has a superior property with respect to miscibility with a UV-ray absorber, and which is useful as a replacement of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, or methyltrime-thicone. The cosmetic according to the present invention can provide superior feeling to the touch during use and a superior outer appearance. Furthermore, a degree of freedom in blending various components such as UV-ray absorbers into the cosmetic according to the present invention is increased. | 09-20-2012 |
20130142748 | Cosmetic For Hair Containing Co-Modified Organopolysiloxane - The present invention provides a cosmetic for hair in which smooth combability without a frictional sensation during cleansing and applying to hair, namely during wetting, the aforementioned effects are not lost by a rinsing operation, smooth combability during and after drying the hair is exhibited, a moisturizing feeling on touch is exhibited without stickiness, and a flexible styling sensation is provided to the hair. A co-modified organopolysiloxane having both a specified hydrophilic group and a siloxane dendron structure-containing group is blended in a cosmetic for hair as an essential component. | 06-06-2013 |
20140364394 | Novel Liquid Organopolysiloxane And Uses Thereof - A liquid organopolysiloxane having fluidity at least 100° C., a silicon-bonded glycerin derivative group, and a crosslinked structure comprising a carbon-silicon bond at the crosslinking portion. | 12-11-2014 |
20140371330 | Novel Co-Modified Organopolysiloxane, And Treatment Agent And External Use Preparation Comprising The Same - A co-modified organopolysiloxane having a viscosity at 25° C. of not more than 1,500 mPa·s, a group that has a siloxane dendron structure, a hydrophilic group, and expressed by the following general formula (1): R | 12-18-2014 |
20150243858 | Surface Treatment Agent For Optical Material, And Optical Material - A surface treatment agent for an optical material comprising an organic silicon compound having a functional group selected from a highly polar functional group, a hydroxyl group-containing group, a silicon atom-containing hydrolyzable group, or metal salt derivatives thereof bonded to silicon atoms directly or via a functional group with a valency of (n+1) (n is a number equal to 1 or greater); and having at least one structure in the molecule in which the silicon atoms are bonded to any siloxane unit represented by R | 08-27-2015 |
20150252221 | Curable Silicone Composition, Cured Product Thereof, And Optical Semiconductor - The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane having at least two alkenyl groups in a molecule and represented by the average unit formula; (B) a straight chain organopolysiloxane having at least two alkenyl groups in a molecule and having no silicon-bonded hydrogen atoms; (C) an organosiloxane i) represented by the general formula, an organopolysiloxane (C | 09-10-2015 |
20150274895 | Highly Refractive Surface Treatment Agent, And Fine Member And Optical Material Surface-Treated Using The Same - A surface treatment agent comprising an organic silicon compound having: a functional group selected from a highly polar functional group, a hydroxyl group-containing group, a silicon atom-containing hydrolyzable group, or metal salt derivatives thereof bonded to silicon atoms directly or via a functional group with a valency of (n+1) (n is a number equal to 1 or greater) and having at least one structure in the molecule in which the silicon atoms are bonded to any siloxane unit represented by R | 10-01-2015 |
20150274938 | Curable Silicone Composition, And Semiconductor Sealing Material And Optical Semiconductor Device Using The Same - A hydrosilylation reaction curable curable silicone composition comprising barium titanate microparticles or barium titanate microparticles having a surface which is partially or fully covered by a silica layer with a cumulant average particle size of at most 200 nm, wherein a refractive index after curing is at least 1.55, preferably a curable silicone composition in which the barium titanate microparticles are barium titanate microparticles surface-treated by an organosilicon compound having a silicon atom-containing hydrolyzable group etc. bonded to silicon atoms directly or via a functional group with a valency of (n+1) (n is a number equal to 1 or greater) and having at least one structure in the molecule in which the silicon atoms are bonded to other siloxane units. | 10-01-2015 |
20150284514 | Curable Silicone Composition, Cured Product Thereof, And Optical Semiconductor Device - The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane represented by a specific average unit formula and having at least two alkenyl groups in a molecule, (B) an optional straight-chain organopolysiloxane having at least two alkenyl groups and not having any silicon-bonded hydrogen atoms in a molecule, (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, wherein at least 80 mass % of this component comprises an organotrisiloxane represented by the formula: H(CH | 10-08-2015 |
Patent application number | Description | Published |
20100028391 | Cosmetics Comprising A Modified Organopolysiloxane - This invention relates to a cosmetics characterized in that it contains a gelling agent comprising an organopolysiloxane having a silicon-bonded organic group represented by general formula:R | 02-04-2010 |
20100029862 | Gelling Agents And Gelatinous Compositions - A gelling agent comprising an organopolysiloxane having a silicon-bonded organic group represented by general formula: R | 02-04-2010 |
20100190871 | Gel Composition And Cosmetic - The present invention provides a gel composition having improved texture in use. A gel composition consisting of an organosiloxane derivative represented by the following formula (1) or (3), a monohydric aliphatic alcohol having 10 to 30 carbon atoms, and water. | 07-29-2010 |
20100317555 | Cleanser - The present invention provides a cleanser which is excellent in both of the foaming property and the cleansing capability. The cleanser comprises an organosiloxane derivative salt represented by the following formula (1) or (3) and one or more anionic surfactants selected from a group consisting of carboxylate salt with an alkyl group having 10 to 20 carbon atoms, sulfate salt with an alkyl group having 10 to 20 carbon atoms, sulfonate salt with an alkyl group having 10 to 20 carbon atoms, and phosphate salt with an alkyl group having 10 to 20 carbon atoms. | 12-16-2010 |
20110135585 | Complex, Emulsion Containing The Same, And Water-In-Oil Emulsion Cosmetic Containing The Same - A stable emulsion cosmetic having an excellent texture in use, and in particular, a solid emulsion cosmetic which is stable in a system containing a large amount of water is provided. The complex consists of an organosiloxane derivative represented by the following formula (1) or (2) and an amphoteric surfactant and/or semipolar surfactant. | 06-09-2011 |
20110182846 | Surface Treating Agent, Surface-Treated Powder, And Cosmetic - The present invention provides a surface treating agent that can improve texture in use and impart excellent water resistance and sebum resistance. A surface treating agent comprising an organosiloxane derivative having a divalent or trivalent metal salt of a terminal carboxyl group, represented by the following formula (1) or (3). | 07-28-2011 |
20150216787 | COPOLYMER HAVING CARBOSILOXANE DENDRIMER STRUCTURE AND COMPOSITION AND COSMETIC CONTAINING THE SAME - A copolymer in which from 45 to 60% by mass of all monomer units are unsaturated monomers having a specific carbosiloxane dendrimer structure is disclosed, along with a composition, a cosmetic raw material, and a cosmetic containing the copolymer. The copolymer has excellent physical properties, including compatibility with other cosmetic raw materials, e.g. hardly soluble ultraviolet absorbers, and is capable of improving the compounding stability of cosmetics. The copolymer imparts cosmetics with good water resistance, sebum resistance, luster, tactile sensation, and adhesiveness to the hair or skin. | 08-06-2015 |
20150232601 | COPOLYMER HAVING CARBOSILOXANE DENDRIMER STRUCTURE AND HYDROPHILIC GROUP - A copolymer comprising: (A) an unsaturated monomer having a carbosiloxane dendrimer structure; and (B) an unsaturated monomer having at least one hydrophilic group in the molecule is disclosed. A content of the unsaturated monomer having the carbosiloxane dendrimer structure is in the range of 35 to 50% by mass of the total monomer units of the copolymer. The present invention is also a liquid composition, surface treatment agent, and powder composition including the copolymer, as well as a cosmetic raw material containing such components. | 08-20-2015 |
20150239924 | NOVEL CO-MODIFIED ORGANOPOLYSILOXANE, AND POWDER TREATMENT AGENT AND POWDER COMPOSITION COMPRISING THE SAME - A co-modified organopolysiloxane having a group having a siloxane dendron structure and a group containing a saccharide component (e.g. a sugar lactone amide alkyl group) is disclosed. The present invention also provides a method for producing the co-modified organopolysiloxane, as well as a surface treatment agent, a powder treatment agent, a powder composition, a powder-in-oil dispersion, a preparation for external use, and the like containing the co-modified organopolysiloxane. | 08-27-2015 |
20150272858 | TREATMENT AGENT AND COSMETIC COMPOSITION COMPRISING CO-MODIFIED ORGANOPOLYSILOXANE - A surface treatment agent or a powder treatment agent comprising a co-modified organopolysiloxane is disclosed. The co-modified organopolysiloxane is represented by the general formula: R | 10-01-2015 |
Patent application number | Description | Published |
20120251605 | Surface-Treatment Agent For Powder For Use In Cosmetic And Cosmetic Containing Powder Treated With The Same - The present invention relates to a surface-treatment agent for powders for use in cosmetics, including a specific polymer having a specified carbosiloxane dendrimer structure, as well as a cosmetic comprising a powder which has been treated with the above surface-treatment agent. The surface-treated powder does not generate hydrogen, and therefore is safe. Further the surface-treated powder can exhibits, good compatibility with other cosmetic raw materials, and thereby, the stability of the formulation in cosmetics can be improved. The surface-treated powder can provide cosmetics with good water resistance, good sebum resistance, good glossiness, a good tactile sensation, good adhesive properties to hair and/or skin, or the like. The cosmetic can also have superior surface protective properties, a superior outer appearance, and/or a superior sensation during use. | 10-04-2012 |
20120263662 | Copolymer Having Carbosiloxane Dendrimer Structure, And Composition And Cosmetic Containing The Same - The present invention relates to a copolymer having a specified carbosiloxane dendrimer structure and a long-chain alkyl group with 14 to 22 carbon atoms in a specified ratio, and a cosmetic comprising the copolymer as a cosmetic raw material. The cosmetic raw material has good miscibility with other cosmetic raw materials, and therefore, can improve stability of the formulation in a cosmetic, as well as can provide good water resistance, sebum resistance, glossiness, tactile sensation and/or adhesive properties to the hair and/or skin to a cosmetic, and also provide a cosmetic formed by blending the aforementioned cosmetic raw material, which exhibits superior surface protective properties, outer appearance and/or sensation during use. | 10-18-2012 |
20120269747 | Novel Organopolysiloxane Copolymer - A novel organopolysiloxane copolymer is disclosed. The copolymer has excellent surface active power and exhibits excellent blending stability in cosmetic preparations and excellent feeling improvement characteristics in comparison to conventionally known polyether-modified silicones and silicone-containing alternating copolymers. The organopolysiloxane copolymer can be used in combination with various cosmetic formulation ingredients. The copolymer is an AB-type organopolysiloxane copolymer which has a silylalkyl group having a carbosiloxane dendrimer structure at one end of the molecular chain, and a hydrophilic segment at the other end. A method for producing the AB-type organopolysiloxane copolymer; a surfactant and a powder processing agent which are respectively composed of the organopolysiloxane copolymer; and a composition for external application and a cosmetic formulation which respectively contain the organopolysiloxane copolymer are also disclosed. | 10-25-2012 |
20120269748 | Thickening Or Gelling Agent For Oily Raw Materials - An excellent oil-thickening or -gelling agent is provided. The agent is compatible with various oils and can freely control the form or viscosity of oily raw materials or cosmetics by changing the quantity thereof added. The agent contains a novel co-modified organopolysiloxane that contains both a group having a siloxane dendron structure and a hydrophilic group and that preferably has a degree of polymerization of 200 or more. A gel composition containing the co-modified organopolysiloxane is also provided. The gel composition is useful as a base that permits stable and easy preparation of cosmetics having various viscoelasticities and forms. An oil is kept in the form of a gel that has a viscoelasticity falling within the intermediate range between the viscoelasticity of liquid and that of solid. Cosmetics containing the thickening or gelling agent are also provided. | 10-25-2012 |
20120269875 | Novel Co-Modified Organopolysiloxane - A novel organopolysiloxane having a hydrophilic group, which can be produced easily and is not susceptible to two-phase separation, sedimentation of unreacted materials or the like after production, while being chemically stable and excellently practical, is disclosed. A method for producing the organopolysiloxane; and uses of the organopolysiloxane are also disclosed. The organopolysiloxane is a co-modified organopolysiloxane which has a group having a siloxane dendron structure and a hydrophilic group. | 10-25-2012 |
20120328539 | Thickener Or Gellant For Oil Materials, Gel Composition Comprising Same, And Method Of Producing Cosmetic Material Or Topical Agent - This inventive thickener or gellant for oil materials is characterized by comprising (A) an high molecular weight organopolysiloxane that has a polyglycerol structure-containing hydrophilic group Q and that is represented by the following structural formula (1): R | 12-27-2012 |
20130096206 | POWDER TREATMENT AGENT COMPRISING SUGAR ALCOHOL-MODIFIED ORGANOPOLYSILOXANE - The present invention has an objective to provide a surface treatment agent which is safe with no generation of hydrogen, can be suitably used in a surface treatment of powder(s), exhibits good compatibility with other raw materials of cosmetics, and therefore, can improve a dispersing property and stability of powder(s) contained in a cosmetic, as well as provide a powder which has been subjected to a surface treatment with the aforementioned powder treatment agent, and a cosmetic raw material and a cosmetic which are produced by blending them, exhibit superior storage stability, have a superior outer appearance, and exhibit a superior sensation during use. A sugar alcohol-modified organopolysiloxane having a specified structure is used in the powder treatment. | 04-18-2013 |
20130102686 | Novel Organopolysiloxane, Surfactant, Emulsion Composition, Powder Treatment Agent, Thickening Agent Of Oil-Based Raw Material, Gelling Agent, Gel Composition, And Cosmetic Raw Material Comprising Novel Organopolysiloxane, As Well As, Preparation For External Use And Cosmetic Comprising The Same - The present invention provides a novel organopolysiloxane in which a rich hydrophilic property is exhibited, not only superior miscibility with a hydrophilic component and but also a hydrophobic property are exhibited, and superior miscibility with both a silicone oil and a non-silicone oil such as a hydrocarbon oil, an ester oil or the like, and provide various usages of the aforementioned novel organopolysiloxane by developing the superior characteristics thereof such as good surface activity power, a distinctive sensation during use, increased stability and the like. A co-modified organopolysiloxane having a specified chemical structure in which a sugar alcohol-modified group and a long-chain hydrocarbon group are present in one molecule is produced. The co-modified organopolysiloxane is blended, as a surfactant, a powder treatment agent, a gelling agent or the like, or as a cosmetic raw material appropriately together with powder(s), oil agent(s) or the like, in a preparation for external use, and in particular, a cosmetic. | 04-25-2013 |
20130116340 | Cosmetic And Topical Skin Preparation Comprising Higher Alcohol-Modified Silicone - A cosmetic and a topical skin preparation comprising a higher alcohol-modified silicone (A) with the following general formula (1) wherein R | 05-09-2013 |
20130177516 | Cosmetic For Hair Containing Sugar Alcohol-Modified Silicone - The present invention provides a cosmetic for hair which is superior in view of a sensation during use, effects of styling and/or conditioning hair after use, and cleansing properties. A sugar alcohol-modified silicone having a specified chemical structure in which a sugar alcohol-modified group and optionally a silylalkyl group having a dendron structure, and/or a long chain hydrocarbon group are possessed in one molecule is blended in a cosmetic for hair. | 07-11-2013 |
20140187649 | Novel Liquid Organo Polysiloxane And Use Therefor - The present invention relates to a liquid organopolysiloxane having fluidity at a temperature of at least 100° C., having a silicon-bonded sugar alcohol-modified group, and having a crosslinked structure comprising a carbon-silicon bond in the crosslinking portion. The liquid organopolysiloxane of the present invention has excellent emulsion characteristics, imparts excellent tactile sensation, and, in particular, when compounded in an external use preparation or a cosmetic composition containing water and oil, takes advantage of the effects of water to suppress oiliness and provide a smooth, thick feeling when applied, a natural feeling to the skin with good compatibility with the skin, excellent moisturizing effects, and an excellent sensation during use without any oily stickiness. | 07-03-2014 |
20140191161 | Curable Silicon Composition, Cured Product Thereof, And Optical Semiconductor Device - A hydrosilylation curable silicone composition that forms a cured product with a high refractive index, high transparency, excellent heat resistance, and excellent flexibility, the hydrosilylation curable silicone composition comprising, as a main component, an organopolysiloxane represented by the following average unit formula: | 07-10-2014 |
20140323590 | POWDER TREATMENT AGENT COMPRISING SUGAR ALCOHOL-MODIFIED ORGANOPOLYSILOXANE - The present invention has an objective to provide a surface treatment agent which is safe with no generation of hydrogen, can be suitably used in a surface treatment of powder(s), exhibits good compatibility with other raw materials of cosmetics, and therefore, can improve a dispersing property and stability of powder(s) contained in a cosmetic, as well as provide a powder which has been subjected to a surface treatment with the aforementioned powder treatment agent, and a cosmetic raw material and a cosmetic which are produced by blending them, exhibit superior storage stability, have a superior outer appearance, and exhibit a superior sensation during use. A sugar alcohol-modified organopolysiloxane having a specified structure is used in the powder treatment. | 10-30-2014 |
Patent application number | Description | Published |
20090288849 | Air compressor and method for controlling the same - An air compressor includes: a tank portion for reserving compressed air used in a pneumatic tool; a compressed air generation portion for generating compressed air and supplying the compressed air to the tank portion; a drive portion including a motor for driving the compressed air generation portion; a control circuit portion for controlling the drive portion; and a pressure sensor for detecting pressure of the compressed air reserved in the tank portion. The control circuit portion includes a unit for controlling the rotational speed of the motor multistageously based on a detection signal output from the pressure sensor. | 11-26-2009 |
20110073334 | ROTARY STRIKING TOOL - According to an aspect of the present invention, there is provided a rotary striking tool includes: a motor; an oil pulse unit that is driven by the motor; an output shaft that is coupled to the oil pulse unit so that a tip tool can be attached to the output shaft; a first detection unit that detects a rotation angle of the motor and outputs a first output signal; a second detection unit that detects an impact generated at the oil pulse unit and outputs a second output signal; and a control unit that controls a rotation of the motor, wherein the control unit uses a portion of the second output signal based on the first output signal for control of the rotation of the motor. | 03-31-2011 |
20110079407 | ROTARY STRIKING TOOL - According to an aspect of the present invention, there is provided a rotary striking tool, including: a motor; an impact unit having a driving part being driven by the motor and an output part; a tip-tool side output shaft that is coupled to the output part; an impact detection unit that detects an impact generated at the impact unit; and a control unit programmed to: control the impact unit to perform a confirmation striking when the impact detected by the impact detection unit reaches a prescribed value, detect a rotation angle of the output shaft at the confirmation striking, determine whether a fastening operation is completed when the detected rotation angle is equal to or smaller than a predetermined angle, and continue the fastening operation when the detected rotation angle is larger than the predetermined angle. | 04-07-2011 |
20120292070 | ELECTRIC TOOL AND COMMUNICATION PLUG FOR ELECTRIC TOOL - An electric tool including: a motor configured to drive a front end tool; a control device configure to control rotation of the motor; a storage part configured to store a method of driving the motor by the control device; and a communication terminal to which a communication line for reading or writing information of the storage part is configured to be connected. | 11-22-2012 |
20130245789 | ELECTRIC TOOL AND DATA TRANSMISSION METHOD - An electric tool includes a motor, a light having a function in addition to a data transmission, a switch configured to switch power supply to the light in accordance with a user operation; and a control unit. Upon a switch is switched from OFF to ON, the light is blinked at a frequency above the human-sensible range on the basis of data such as the usage history data of the electric tool. An average of the blinking frequency of the light is approximately 4,800 Hz when a bit rate is set to 9,600 bps, for example. Further, an average of a duty ratio of a drive signal of the light during blinking is approximately 50%. | 09-19-2013 |
20140049204 | ELECTRIC WORKING MACHINE - An electric working machine including: an input part; a control unit configured to control a motor in accordance with an operation amount of the input part; and a switching part; wherein, when a predetermined operation is performed to the switching part, the control unit shifts to a fixed control mode in which the motor is controlled in accordance with an operation amount of the input part at the time when the predetermined operation is performed to the switching part, irrespective of an operation amount of the input part after the predetermined operation is performed to the switching part. | 02-20-2014 |
20150022125 | ELECTRIC TOOL - An electric tool for driving a tip tool, the electric tool includes: a removable battery; the brushless motor configured to generate a driving force for driving the tip tool; an inverter circuit configured to supply drive power from the removable battery to the brushless motor using a plurality of semiconductor switching elements; a controller configured to control the inverter circuit to control rotation of the brushless motor; a temperature detector configured to detect a temperature of the brushless motor or the semiconductor switching elements; and a voltage detector configured to detect a voltage of the battery. The brushless motor is driven such that a duty ratio of PWM drive signal for driving the semiconductor switching elements is determined based on relationship between the temperature detected by the temperature detector and the voltage detected by the voltage detector. | 01-22-2015 |