Patents by Inventor Shinichi Tahara

Shinichi Tahara 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).

  • Electric power steering apparatus
    Patent number: 6767491
    Abstract: An electric power steering apparatus including a reduction mechanism 5 for transmitting an output of a steering assist motor 1 to a steering mechanism through a worm 3 and a worm wheel 4, in which the worm wheel 4 is formed by a thermosetting synthetic resin filled with a sheet 6 of aramid fibers having a low attacking property to a counter member and an effect of improving the abrasion resistance of the synthetic resin. Even when the reduction mechanism is used in an engine room or the temperature of the reduction mechanism is raised by frictional heat with heightening power, the reduction mechanism is durable, and further the gears have excellent abrasion resistance and toughness and improved durability.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: July 27, 2004
    Assignees: Koyo Seiko Co., Ltd., Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Takanori Kurokawa, Hirokazu Arai, Shinichi Tahara, Syouji Sawai
  • Electric power steering apparatus
    Publication number: 20030137072
    Abstract: An electric power steering apparatus including a reduction mechanism 5 for transmitting an output of a steering assist motor 1 to a steering mechanism through a worm 3 and a worm wheel 4, in which the worm wheel 4 is formed by a thermosetting synthetic resin filled with a sheet 6 of aramid fibers having a low attacking property to a counter member and an effect of improving the abrasion resistance of the synthetic resin. Even when the reduction mechanism is used in an engine room or the temperature of the reduction mechanism is raised by frictional heat with heightening power, the reduction mechanism is durable, and further the gears have excellent abrasion resistance and toughness and improved durability.
    Type: Application
    Filed: March 3, 2003
    Publication date: July 24, 2003
    Applicant: Koyo Seiko Co., Ltd.
    Inventors: Takanori Kurokawa, Hirokazu Arai, Shinichi Tahara, Syouji Sawai
  • Electric power steering apparatus
    Patent number: 6557663
    Abstract: An electric power steering apparatus including a reduction mechanism 5 for transmitting an output of a steering assist motor 1 to a steering mechanism through a worm 3 and a worm wheel 4, in which the worm wheel 4 is formed by a thermosetting synthetic resin filled with a sheet 6 of aramid fibers having a low attacking property to a counter member and an effect of improving the abrasion resistance of the synthetic resin. Even when the reduction mechanism is used in an engine room or the temperature of the reduction mechanism is raised by frictional heat with heightening power, the reduction mechanism is durable, and further the gears have excellent abrasion resistance and toughness and improved durability.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: May 6, 2003
    Assignees: Koyo Seiko Co., Ltd., Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Takanori Kurokawa, Hirokazu Arai, Shinichi Tahara, Syouji Sawai
  • Electric power steering apparatus
    Publication number: 20020011377
    Abstract: An electric power steering apparatus including a reduction mechanism 5 for transmitting an output of a steering assist motor 1 to a steering mechanism through a worm 3 and a worm wheel 4, in which the worm wheel 4 is formed by a thermosetting synthetic resin filled with a sheet 6 of aramid fibers having a low attacking property to a counter member and an effect of improving the abrasion resistance of the synthetic resin. Even when the reduction mechanism is used in an engine room or the temperature of the reduction mechanism is raised by frictional heat with heightening power, the reduction mechanism is durable, and further the gears have excellent abrasion resistance and toughness and improved durability.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 31, 2002
    Inventors: Takanori Kurokawa, Hirokazu Arai, Shinichi Tahara, Syouji Sawai