Patents by Inventor Hisatake Yamada

Hisatake Yamada 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).

  • Elastic support assembly for electric power steering apparatus
    Patent number: 7177744
    Abstract: An elastic support assembly for an electric power steering apparatus in which a worm shaft is supported movably in a rotation axis direction through the elastic support assembly includes: a pair of first and second members relatively moving in the rotation axis direction according to a movement of the worm shaft; an elastic body provided between the first and second members in the rotation axis direction; and a cover which covers an outer periphery part of the elastic body from a radial direction of the worm shaft and is connected to the first member.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: February 13, 2007
    Assignee: Koyo Seiko Co., Ltd
    Inventors: Hajime Tanaka, Hisatake Yamada, Norihisa Nishikawa, Hideo Kometani
  • Worm shaft movable amount adjustment method, worm shaft movable amount adjustment apparatus and elastic support assembly for electric power steering apparatus
    Publication number: 20040210365
    Abstract: An elastic support assembly for an electric power steering apparatus in which a worm shaft is supported movably in a rotation axis direction through the elastic support assembly includes: a pair of first and second members relatively moving in the rotation axis direction according to a movement of the worm shaft; an elastic body provided between the first and second members in the rotation axis direction; and a cover which covers an outer periphery part of the elastic body from a radial direction of the worm shaft and is connected to the first member.
    Type: Application
    Filed: February 12, 2004
    Publication date: October 21, 2004
    Applicant: KOYO SEIKO CO., LTD.
    Inventors: Hajime Tanaka, Hisatake Yamada, Norihisa Nishikawa, Hideo Kometani