Patents by Inventor Seiji Nishimura
Seiji Nishimura 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: 8286353Abstract: A method of manufacturing an outer retainer for a one-way clutch having an outward flange at one side edge thereof involves punching out a part of an annular portion having the outward flange by sliding a punch toward an axis of the outer retainer substantially in an axially inner direction from a retainer outer periphery-sided curve portion of the outward flange to a retainer inner periphery-sided curve portion thereof in a way that uses a die and the punch.Type: GrantFiled: July 21, 2008Date of Patent: October 16, 2012Assignee: NSK-Warner K.K.Inventors: Toshio Nagata, Hiroki Segawa, Hideki Oki, Seiji Nishimura
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Publication number: 20090019686Abstract: A method of manufacturing an outer retainer for a one-way clutch having an outward flange at one side edge thereof involves punching out a part of an annular portion having the outward flange by sliding a punch toward an axis of the outer retainer substantially in an axially inner direction from a retainer outer periphery-sided curve portion of the outward flange to a retainer inner periphery-sided curve portion thereof in a way that uses a die and the punch.Type: ApplicationFiled: July 21, 2008Publication date: January 22, 2009Inventors: Toshio Nagata, Hiroki Segawa, Hideki Oki, Seiji Nishimura
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Publication number: 20080006490Abstract: A brake caliper has a retention spring to eliminate excessive movement of the pressure plates or pad pin with respect to the caliper housing. The retention spring has a pad pin contacting portion to exert a force on the pad pin. The spring includes a retention portion continuous with the pad pin portion to provide counterforce to maintain the pad pin in position.Type: ApplicationFiled: August 27, 2007Publication date: January 10, 2008Inventors: Philip Jedele, Seiji Nishimura, Tadasake Fujiwara
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Publication number: 20070227839Abstract: A pad clip is provided with a pair of restraining pieces formed by bending a metal plate and remote from each other in an axial direction of a rotor. By the two restraining pieces, portions of the support member are squeezed from both sides of the support member with regard to the axial direction of the rotor so as to be supported the pad clip. By restraining to reduce a portion of the metal plate constituting a scrap by promoting a performance of blanking from the metal plate by devising shapes of the two restraining pieces, low cost formation is achieved by increasing yield of a material.Type: ApplicationFiled: March 27, 2007Publication date: October 4, 2007Inventors: Sean Barrett, Seiji Nishimura, Fumiko Matsuyama
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Patent number: 7267208Abstract: A brake caliper has a retention spring to eliminate excessive movement of the pressure plates or pad pin with respect to the caliper housing. The retention spring has a pad pin contacting portion to exert a force on the pad pin. The spring includes a retention portion continuous with the pad pin portion to provide counterforce to maintain the pad pin in position.Type: GrantFiled: December 14, 2004Date of Patent: September 11, 2007Assignee: Akebono CorporationInventors: Philip N Jedele, Seiji Nishimura, Tadasake Fujiwara
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Publication number: 20070119666Abstract: A brake assembly generally includes a hanging brake pad, an abutted brake pad and a caliper body that clamps the pads against a rotor. The brake system comprises a support bracket having a first portion and a second portion. The first portion defines an aperture that receives the abutted brake pad. The second portion extends generally perpendicular from the first portion. At least one rail extends from the second portion. The at least one rail receives the hanging brake pad and wherein the support bracket is adapted to connect to the caliper body.Type: ApplicationFiled: November 28, 2005Publication date: May 31, 2007Inventors: Manuel Barbosa, Seiji Nishimura, Sean Barrett
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Patent number: 7156611Abstract: An axial-flow fan with double impellers is provided that can produce a larger amount of air and a higher static pressure than can be achieved with conventional fans. The axial-flow fan with double impellers has a first axial-flow fan unit and a second axial-flow fan unit. The first axial-flow fan unit includes a first case, a first impeller and a plurality of webs that fix a first motor to the first case. The second axial-flow fan unit includes a second case, a second impeller and a plurality of webs that fix a second motor to the second case. The first case and the second case are coupled together to form a housing. The webs of the first axial-flow fan unit and the webs of the second axial-flow fan unit are combined together to form a plurality of stationary webs arranged in the housing. The number of front blades provided at the first impeller is set to five, the number of stationary blades is set to three, and the number of rear blades provided at the second impeller is set to four.Type: GrantFiled: April 28, 2003Date of Patent: January 2, 2007Assignee: Sanyo Denki Co., Ltd.Inventors: Honami Oosawa, Katsumichi Ishihara, Toshiyuki Nakamura, Takashi Kaise, Yoshihiko Aizawa, Seiji Nishimura
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Publication number: 20060289249Abstract: A brake caliper assembly includes a caliper body with a support portion and a force applying portion. A pair of brake pads is slidably coupled with the caliper body. The force applying portion has a first cylinder adapted to be fixed to a vehicle to enable the support portion to slide with respect to the first cylinder. A second cylinder is slidably positioned within a bore of the first cylinder. A piston is positioned within a bore of the second cylinder and is movable with respect to the second cylinder to apply a force onto the brake pads.Type: ApplicationFiled: June 22, 2005Publication date: December 28, 2006Inventors: Seiji Nishimura, Sean Barrett
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Patent number: 7097004Abstract: A boot-type seal having a seal and a valve. The seal has a first seal member, which is configured to sealingly engage a first surface, and a second seal member, which is configured to sealingly engage a second surface. The valve is coupled to the seal and is operable in a first condition, which inhibits fluid communication therethrough, and a second condition, which permits fluid communication therethrough. The condition of the valve changes from the first condition to the second condition in response to a fluid pressure exerted on a side of the seal that exceeds a predetermined threshold pressure. A brake assembly that incorporates the boot-type seal is also provided.Type: GrantFiled: January 24, 2003Date of Patent: August 29, 2006Assignee: Akebono Corporation (North America)Inventors: Sean Barrett, Seiji Nishimura, Takashi Matsumoto
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Publication number: 20060124408Abstract: A brake caliper has a retention spring to eliminate excessive movement of the pressure plates or pad pin with respect to the caliper housing. The retention spring has a pad pin contacting portion to exert a force on the pad pin. The spring includes a retention portion continuous with the pad pin portion to provide counterforce to maintain the pad pin in position.Type: ApplicationFiled: December 14, 2004Publication date: June 15, 2006Inventors: Philip Jedele, Seiji Nishimura, Tadasake Fujiwara
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Patent number: 7055666Abstract: The present invention provides a one-way clutch comprising sprags disposed between outer and inner races which are rotated relative to each other and adapted to transmit torque, spring members for biasing the sprags toward an engagement direction, and a cage which has a plurality of window portions for holding the sprags and in which a column portion between the adjacent window portions is partially cut at a predetermined position to connect between the adjacent window portions and the column portion is bent to form an elastic piece elastically engaging with the outer race or the inner race, and wherein a recessed portion is provided in a side surface of a bent portion of the elastic piece in a bent direction.Type: GrantFiled: March 1, 2004Date of Patent: June 6, 2006Assignee: NSK-Warner K.K.Inventors: Seiji Nishimura, Hideki Oki, Tetsuya Wakamori
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Publication number: 20050106026Abstract: An axial-flow fan with double impellers is provided that can produce a larger amount of air and a higher static pressure than can be achieved with conventional fans. The axial-flow fan with double impellers has a first axial-flow fan unit Sand a second axial-flow fan unit. The first axial-flow fan unit includes a first case, a first impeller and a plurality of webs that fix a first motor to the first case. The second axial-flow fan unit includes a second case, a second impeller and a plurality of webs that fix a second motor to the second case. The first case and the second case are coupled together to form a housing. The webs of the first axial-flow fan unit and the webs of the second axial-flow fan unit are combined together to form a plurality of stationary webs arranged in the housing. The number of front blades provided at the first impeller is set to five, the number of stationary blades is set to three, and the number of rear blades provided at the second impeller is set to four.Type: ApplicationFiled: April 28, 2003Publication date: May 19, 2005Applicant: Sanyo Denki Co., Ltd.Inventors: Honami Oosawa, Katsumichi Ishihara, Toshiyuki Nakamura, Takashi Kaise, Yoshihiko Aizawa, Seiji Nishimura
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Publication number: 20040226798Abstract: The present invention provides a one-way clutch comprising sprags disposed between outer and inner races which are rotated relative to each other and adapted to transmit torque, spring members for biasing the sprags toward an engagement direction, and a cage which has a plurality of window portions for holding the sprags and in which a column portion between the adjacent window portions is partially cut at a predetermined position to connect between the adjacent window portions and the column portion is bent to form an elastic piece elastically engaging with the outer race or the inner race, and wherein a recessed portion is provided in a side surface of a bent portion of the elastic piece in a bent direction.Type: ApplicationFiled: March 1, 2004Publication date: November 18, 2004Applicant: NSK-WARNER K.K.Inventors: Seiji Nishimura, Hideki Oki, Tetsuya Wakamori
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Publication number: 20040144603Abstract: A boot-type seal having a seal and a valve. The seal has a first seal member, which is configured to sealingly engage a first surface, and a second seal member, which is configured to sealingly engage a second surface. The valve is coupled to the seal and is operable in a first condition, which inhibits fluid communication therethrough, and a second condition, which permits fluid communication therethrough. The condition of the valve changes from the first condition to the second condition in response to a fluid pressure exerted on a side of the seal that exceeds a predetermined threshold pressure. A brake assembly that incorporates the boot-type seal is also provided.Type: ApplicationFiled: January 24, 2003Publication date: July 29, 2004Inventors: Sean Barrett, Seiji Nishimura, Takashi Matsumoto
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Patent number: 5605959Abstract: A particulate vinyl polymer is provided. At least 95 wt. % of its particles have a minor axis A and a major axis B, which are in a relationship of 1.ltoreq.B/A.ltoreq.1.5 and individually range from 30 .mu.m to 400 .mu.m. The polymer has an acid value of from 30 to 150 mgKOH/g. This particulate vinyl polymer is excellent in work-ability such as the solubility in aqueous medium, and is useful as a raw material for water-base coating compositions having superb dispersion of a pigment and excellent waterproofness.Type: GrantFiled: December 4, 1995Date of Patent: February 25, 1997Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Makoto Moriya, Seiji Nishimura, Yasutaka Doi
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Patent number: 5496904Abstract: A particulate vinyl polymer is provided. At least 95 wt. % of its particles have a minor axis A and a major axis B, which are in a relationship of 1.ltoreq.B/A.ltoreq.1.5 and individually range from 30 .mu.m to 400 .mu.m. The polymer has an acid value of from 30 to 150 mg KOH/g. This particulate vinyl polymer is excellent in workability such as the solubility in aqueous medium, and is useful as a raw material for water-base coating compositions having superb dispersion of a pigment and excellent waterproofness.Type: GrantFiled: October 6, 1994Date of Patent: March 5, 1996Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Makoto Moriya, Seiji Nishimura, Yasutaka Doi