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).

  • Patent number: 8286353
    Abstract: 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: Grant
    Filed: July 21, 2008
    Date of Patent: October 16, 2012
    Assignee: NSK-Warner K.K.
    Inventors: Toshio Nagata, Hiroki Segawa, Hideki Oki, Seiji Nishimura
  • Publication number: 20090019686
    Abstract: 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: Application
    Filed: July 21, 2008
    Publication date: January 22, 2009
    Inventors: Toshio Nagata, Hiroki Segawa, Hideki Oki, Seiji Nishimura
  • Publication number: 20080006490
    Abstract: 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: Application
    Filed: August 27, 2007
    Publication date: January 10, 2008
    Inventors: Philip Jedele, Seiji Nishimura, Tadasake Fujiwara
  • Publication number: 20070227839
    Abstract: 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: Application
    Filed: March 27, 2007
    Publication date: October 4, 2007
    Inventors: Sean Barrett, Seiji Nishimura, Fumiko Matsuyama
  • Patent number: 7267208
    Abstract: 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: Grant
    Filed: December 14, 2004
    Date of Patent: September 11, 2007
    Assignee: Akebono Corporation
    Inventors: Philip N Jedele, Seiji Nishimura, Tadasake Fujiwara
  • Publication number: 20070119666
    Abstract: 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: Application
    Filed: November 28, 2005
    Publication date: May 31, 2007
    Inventors: Manuel Barbosa, Seiji Nishimura, Sean Barrett
  • Patent number: 7156611
    Abstract: 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: Grant
    Filed: April 28, 2003
    Date of Patent: January 2, 2007
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Honami Oosawa, Katsumichi Ishihara, Toshiyuki Nakamura, Takashi Kaise, Yoshihiko Aizawa, Seiji Nishimura
  • Publication number: 20060289249
    Abstract: 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: Application
    Filed: June 22, 2005
    Publication date: December 28, 2006
    Inventors: Seiji Nishimura, Sean Barrett
  • Patent number: 7097004
    Abstract: 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: Grant
    Filed: January 24, 2003
    Date of Patent: August 29, 2006
    Assignee: Akebono Corporation (North America)
    Inventors: Sean Barrett, Seiji Nishimura, Takashi Matsumoto
  • Publication number: 20060124408
    Abstract: 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: Application
    Filed: December 14, 2004
    Publication date: June 15, 2006
    Inventors: Philip Jedele, Seiji Nishimura, Tadasake Fujiwara
  • Patent number: 7055666
    Abstract: 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: Grant
    Filed: March 1, 2004
    Date of Patent: June 6, 2006
    Assignee: NSK-Warner K.K.
    Inventors: Seiji Nishimura, Hideki Oki, Tetsuya Wakamori
  • Publication number: 20050106026
    Abstract: 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: Application
    Filed: April 28, 2003
    Publication date: May 19, 2005
    Applicant: Sanyo Denki Co., Ltd.
    Inventors: Honami Oosawa, Katsumichi Ishihara, Toshiyuki Nakamura, Takashi Kaise, Yoshihiko Aizawa, Seiji Nishimura
  • Publication number: 20040226798
    Abstract: 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: Application
    Filed: March 1, 2004
    Publication date: November 18, 2004
    Applicant: NSK-WARNER K.K.
    Inventors: Seiji Nishimura, Hideki Oki, Tetsuya Wakamori
  • Publication number: 20040144603
    Abstract: 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: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Inventors: Sean Barrett, Seiji Nishimura, Takashi Matsumoto
  • Patent number: 5605959
    Abstract: 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: Grant
    Filed: December 4, 1995
    Date of Patent: February 25, 1997
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Makoto Moriya, Seiji Nishimura, Yasutaka Doi
  • Patent number: 5496904
    Abstract: 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: Grant
    Filed: October 6, 1994
    Date of Patent: March 5, 1996
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Makoto Moriya, Seiji Nishimura, Yasutaka Doi