Patents by Inventor Ken-ichiroh Aoto

Ken-ichiroh Aoto 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 system
    Patent number: 6900564
    Abstract: An electric power steering system is provided, which comprises a steering assist electric motor, and a reduction gear mechanism for reducing a rotation speed of a rotatable shaft of the electric motor. The reduction gear mechanism comprises a worm shaft driven by the rotatable shaft, and a worm wheel driven by the warm shaft. The electric power steering system further comprises a joint for coupling the rotatable shaft to the worm shaft for transmission of a driving force. Longitudinally biasing means is provided in association with the joint for longitudinally biasing the worm shaft.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: May 31, 2005
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Masanori Kobayashi, Takeo Iino, Akihiko Shiina, Katsutoshi Nishimura, Ken-ichiroh Aoto, Yoshio Itou, Masashi Uota, Shoji Shibamura, Tetsuya Murakami, Hiroyuki Shigemura
  • Electric power steering system
    Publication number: 20020195893
    Abstract: An electric power steering system is provided, which comprises a steering assist electric motor, and a reduction gear mechanism for reducing a rotation speed of a rotatable shaft of the electric motor. The reduction gear mechanism comprises a worm shaft driven by the rotatable shaft, and a worm wheel driven by the warm shaft. The electric power steering system further comprises a joint for coupling the rotatable shaft to the worm shaft for transmission of a driving force. Longitudinally biasing means is provided in association with the joint for longitudinally biasing the worm shaft.
    Type: Application
    Filed: June 18, 2002
    Publication date: December 26, 2002
    Inventors: Masanori Kobayashi, Takeo Iino, Akihiko Shiina, Katsutoshi Nishimura, Ken-ichiroh Aoto, Yoshio Itou, Masashi Uota, Shoji Shibamura, Tetsuya Murakami, Hiroyuki Shigemura