Patents by Inventor Hiroaki Yamauchi
Hiroaki Yamauchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11971683Abstract: Provided an electrophotographic electro-conductive member that can stably suppress an occurrence of fogging in an electrophotographic image. The member comprises a support having an electro-conductive outer surface, and an electro-conductive layer on the outer surface of the support, the electro-conductive layer having a matrix including a cross-linked product of a first rubber, and domains dispersed in the matrix, the domains each includes a cross-linked product of a second rubber and an electro-conductive particle, at least some of the domains is exposed to the outer surface of the electro-conductive member to constitute protrusions on an outer surface of the member, the outer surface of the electro-conductive member is constituted by the matrix and the domains exposed to the outer surface of the electrophotographic electro-conductive member, the electrophotographic electro-conductive member has an impedance of 1.0×103? or more and 1.0×108? or less, and some of the domains satisfy two specific requirements.Type: GrantFiled: September 27, 2021Date of Patent: April 30, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Satoru Nishioka, Kazuhiro Yamauchi, Hiroaki Watanabe, Takumi Furukawa, Yasuhiro Fushimoto, Masahiro Kurachi, Kenji Takashima, Yuichi Kikuchi, Kana Sato
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Publication number: 20190034745Abstract: To provide an imaging apparatus including an image processor that processes a fingerprint portion or the like that can be used for at least biometrics authentication of image data based on a digital imaging signal output from an image sensor into an unverifiable state with a template for biometrics authentication.Type: ApplicationFiled: January 23, 2018Publication date: January 31, 2019Applicants: REVO Inc., IPC Inc.Inventors: Shigehito Kuma, Hiroaki Yamauchi
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Patent number: 8521065Abstract: A fuser includes: a rotational member configured to rotate; a press member configured to press the rotational member; an induction-current generator configured to generate induction current in the rotational member; and a separator configured to separate a leading end of a recording medium that passes through a nip from the rotational member, when a distal end is in a separating position, and move to an open position.Type: GrantFiled: June 17, 2010Date of Patent: August 27, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Kazuhiko Kikuchi, Shuji Yokoyama, Hiroshi Nakayama, Hiroaki Yamauchi, Satoshi Kinouchi
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Patent number: 8050611Abstract: Plural main cores and plural sub-cores are arranged spaced apart from each other along a direction orthogonal to a rotating direction of a heat belt. The plural main cores are opposed to a first area where a sheet having first width in the heat belt passes. The plural sub-cores are opposed to second areas that are areas excluding the first area in an area where the sheet having second width larger than the first width in the heat belt passes. The plural sub-cores have thickness in the direction orthogonal to the rotating direction of the heat belt smaller than the thickness of the plural main cores.Type: GrantFiled: April 5, 2010Date of Patent: November 1, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki KaishaInventors: Satoshi Kinouchi, Kazuhiko Kikuchi, Hiroshi Nakayama, Hiroaki Yamauchi, Shuji Yokoyama
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Publication number: 20100322658Abstract: A fuser includes: a rotational member configured to rotate; a press member configured to form a nip between the press member and the rotational member; an induction-current generator configured to generate an induction current in the rotational member; and a controller configured to reduce a nip temperature of the nip when a leading end of a recording medium reaches the nip to be lower than a nip temperature when an image on the recording medium is fixed.Type: ApplicationFiled: June 17, 2010Publication date: December 23, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Kazuhiko KIKUCHI, Shuji YOKOYAMA, Hiroshi NAKAYAMA, Hiroaki YAMAUCHI, Satoshi KINOUCHI
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Publication number: 20100322684Abstract: A fuser includes: a rotational member configured to rotate; a press member configured to press a recording medium at a nip between the rotational member; an induction-current generator configured to generate induction current in the rotational member; a heat insulator partially transparent to an infrared ray; an insulator driver configured to move the heat insulator to cover the press member; and a thermometer configured to receive the infrared ray emitted from the press member.Type: ApplicationFiled: June 16, 2010Publication date: December 23, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Kazuhiko KIKUCHI, Shuji YOKOYAMA, Hiroshi NAKAYAMA, Hiroaki YAMAUCHI, Satoshi KINOUCHI
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Publication number: 20100322681Abstract: A fuser includes: a rotational member configured to rotate; a press member configured to press the rotational member; an induction-current generator configured to generate induction current in the rotational member; and a separator configured to separate a leading end of a recording medium that passes through a nip from the rotational member, when a distal end is in a separating position, and move to an open position.Type: ApplicationFiled: June 17, 2010Publication date: December 23, 2010Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Kazuhiko KIKUCHI, Shuji YOKOJAMA, Hiroshi NAKAYAMA, Hiroaki YAMAUCHI, Satoshi KINOUCHI
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Publication number: 20100322654Abstract: A fuser includes: a rotational member configured to rotate; a press member configured to press a recording medium at a nip between the rotational member; an induction-current generator configured to generate induction current in the rotational member; and a controller configured to increase rotating speed of the rotational member after a trailing end of a preceding recording medium passes through the nip until a leading end of a following recording medium reaches the nip.Type: ApplicationFiled: June 17, 2010Publication date: December 23, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Kazuhiko KIKUCHI, Shuji YOKOYAMA, Hiroshi NAKAYAMA, Hiroaki YAMAUCHI, Satoshi KINOUCHI
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Publication number: 20100322655Abstract: A fuser includes: a belt member; plural rotational members configured to support the belt member; a press member configured to form a nip between the press member and the belt member; an induction-current generator configured to generate induction current in the belt member; and a controller configured to increase the induction current while a recording medium passes through the nip.Type: ApplicationFiled: June 17, 2010Publication date: December 23, 2010Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Kazuhiko KIKUCHI, Shuji YOKOYAMA, Hiroshi NAKAYAMA, Hiroaki YAMAUCHI, Satoshi KINOUCHI
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Publication number: 20100310266Abstract: Certain embodiments provide a fuser including: a heat roller; a press roller; a coil; an inverter; a driver; a mechanism configured to change a clearance of a gap between a coil and an outer circumferential surface of the heat roller; and a controller. The controller sends information indicating a first power level to the driver. The mechanism changes the clearance to a first distance. The controller sends information indicating a second power level larger than the first power level to the driver. The mechanism changes the clearance to a second distance larger than the first distance.Type: ApplicationFiled: June 4, 2010Publication date: December 9, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Hiroshi NAKAYAMA, Kazuhiko KIKUCHI, Satoshi KINOUCHI, Hiroaki YAMAUCHI, Shuji YOKOYAMA
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Publication number: 20100258557Abstract: A heating fuser includes: a rotating member configured to heat a toner transferred onto a sheet; a first coil body configured to generate a first magnetic field for inducing eddy-current in a first area including the center in a rotation axis direction of the rotating member; second coil bodies configured to generate second magnetic fields for inducing eddy-current in second areas of the rotating member adjacent to the first area in the rotation axis direction; third coil bodies located to extend over the first and second coil bodies when viewed in a direction orthogonal to the rotation axis direction; and a driving circuit configured to drive the third coil bodies between a first state in which the third coil bodies generate magnetic fields for weakening the first magnetic field and a second state in which the third coil bodies generate magnetic fields for strengthening the second magnetic fields.Type: ApplicationFiled: April 6, 2010Publication date: October 14, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Satoshi Kinouchi, Kazuhiko Kikuchi, Hiroshi Nakayama, Hiroaki Yamauchi, Shuji Yokoyama
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Publication number: 20100260525Abstract: Plural main cores and plural sub-cores are arranged spaced apart from each other along a direction orthogonal to a rotating direction of a heat belt. The plural main cores are opposed to a first area where a sheet having first width in the heat belt passes. The plural sub-cores are opposed to second areas that are areas excluding the first area in an area where the sheet having second width larger than the first width in the heat belt passes. The plural sub-cores have thickness in the direction orthogonal to the rotating direction of the heat belt smaller than the thickness of the plural main cores.Type: ApplicationFiled: April 5, 2010Publication date: October 14, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Satoshi KINOUCHI, Kazuhiko KIKUCHI, Hiroshi NAKAYAMA, Hiroaki YAMAUCHI, Shuji YOKOYAMA
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Patent number: 7112130Abstract: Disclosed is a coin change which comprises a coin sort section 50 for sorting coins C discharged from an input hopper 21, and a coin storage section 60 for storing the coins C sorted by the coin sort section 50 on a coin type by type basis. The coin storage section 60 includes a plurality of coin storage grooves 63 provided respectively to the plural coin types and disposed parallel to each other. Each of the coin storage grooves has a width dimension slightly greater than the diameter of a corresponding one of the types of coins and extends approximately horizontally.Type: GrantFiled: September 4, 2002Date of Patent: September 26, 2006Inventors: Kazuya Nishimura, Hiroaki Yamauchi, Nobuo Takashima
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Publication number: 20060040603Abstract: Disclosed is a coin change which comprises a coin sort section 50 for sorting coins C discharged from an input hopper 21, and a coin storage section 60 for storing the coins C sorted by the coin sort section 50 on a coin type by type basis. The coin storage section 60 includes a plurality of coin storage grooves 63 provided respectively to the plural coin types and disposed parallel to each other. Each of the coin storage grooves has a width dimension slightly greater than the diameter of a corresponding one of the types of coins and extends approximately horizontally.Type: ApplicationFiled: September 4, 2002Publication date: February 23, 2006Applicant: Japan Cash Machine Co., Ltd.Inventors: Kazuya Nishimura, Hiroaki Yamauchi, Nobuo Takashima
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Patent number: 4904485Abstract: A fat composition suitable for use in bakery or in confectionery, comprising(a) an aqueous phase containing a disrupted yeast cells suspension or a wheat flour suspension treated with either a disrupted yeast cells suspension or a mixture of a disrupted yeast cells suspension and an yeast(b) a fat component and(c) an emulsifier,a bakery or confectionary product produced by using the fat composition and processes for preparing them. The composition can be prepared in large quantities and has a good preservation stability, and thereby becomes more excellent for producing in industrial scale the bakery and confectionary product, which has a good color and nature of crust, grain of crum, aroma and taste, and in accordance with the process, it can prepare the product easily and simply.Type: GrantFiled: October 1, 1987Date of Patent: February 27, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Tamotsu Hirakawa, Kozo Oya, Minoru Ueda, Hiroaki Yamauchi
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Patent number: 4904309Abstract: A chemical cleaning method for removing scales and other substances deposited on the interior of a polymerization reactor used in emulsion polymerization or suspension polymerization. This method comprises chemically cleaning the interior using an aqueous solution or dispersion of an alkali agent and a surfactant. According to this method of cleaning, scales deposited on the interior of a polymerization reactor, in particular, scales deposited during polymerization on the inside surface, an agitator and baffle-plates of the reactor are completely removed.Type: GrantFiled: October 26, 1988Date of Patent: February 27, 1990Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Takamichi Komabashiri, Toragoro Mitani, Hiroaki Yamauchi, Hideo Yasui
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Patent number: 4863524Abstract: A cleaning method for removing scales, etc., deposited on the interior of a polymerization reactor which has been used in emulsion or suspension polymerization. This method uses a chemical cleanser comprising a soap builder an, alkali agent, an aqueous solution or dispersion of a surfactant, and an organic solvent and/or polymerizable monomer. This system may further contain a plastic packing such as tellerettes. By this method, scales deposited on the interior of a polymerization reactor, particularly, scales deposited on the inside surface, agitator, and baffle-plates of the reactor, are compeltely removed.Type: GrantFiled: September 7, 1988Date of Patent: September 5, 1989Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Takamichi Komabashiri, Toragoro Mitani, Hiroaki Yamauchi, Hideo Yasui
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Patent number: 4795800Abstract: A process for preparing a scale deposition preventing agent of a quinone-amine compound suitable for use in a polymerization of acrylic or methacrylic acid ester monomers, which comprises (A) subjecting an aromatic quinone and an aromatic diamine to addition reaction in a solvent having a solubility parameter of 8.5 to 24.0 to give an addition product, and (B) converting the addition product into a high molecular weight compound within 24 hours after beginning the addition reaction (A) by adding an oxidizing agent to the addition reaction mixture or by subjecting the addition reaction mixture to anodic oxidation with an electrode to give a quinone-amine compound. According to the present invention, the preparation rate of the scale deposition preventing agent of the quinone-amine compound can be remarkably increased, the yield can be increased, and the obtained compound has excellent properties.Type: GrantFiled: May 21, 1987Date of Patent: January 3, 1989Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hiroaki Yamauchi, Toragoro Mitani, Takamichi Komabashiri
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Patent number: 4738782Abstract: A nutrient solution of a microorganism to be supplied to a fermentor or a culture broth in the fermentor is aseptically filtered by a porous filter medium made of polytetrafluoroethylene polymer and having properties impervious to microorganism, resistant to heat and chemicals, and hydrophilic, wherein said hydrophilic property was given to the surface of said filter medium with a treatment for hydrophilicity. This treatment comprises treating polytetrafluoroethylene porous polymer as a raw material for the filter medium with surface treating agent comprising an alkali metal naphthalene and diamine and immersing the treated polymer into concentrated sulfuric acid containing an aliphatic or aromatic aldehyde dissolved therein in a concentration exceeding half saturation.Type: GrantFiled: April 26, 1985Date of Patent: April 19, 1988Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hiroaki Yamauchi, Takeshi Shiotani, Yoshimitsu Mekata, Satoshi Imai