Patents by Inventor Yohei Hama

Yohei Hama 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
    Publication number: 20040163880
    Abstract: In an electric power steering apparatus in which a brush holder of an electric motor is clamped between a yoke of the electric motor and a housing, and a communication passage allowing an inner portion of the yoke of the electric motor and an inner portion of the housing to be ventilated is provided in a partition wall of the brush holder, shielding means opposing to each other via a narrow passage are provided in an opening facing the inner portion of the yoke in the communication passage provided in the brush holder.
    Type: Application
    Filed: August 13, 2003
    Publication date: August 26, 2004
    Inventors: Yohei Hama, Akira Fujisaki
  • Electric motor apparatus
    Patent number: 6745865
    Abstract: In an electric motor, a brush holder is provided with a flange protruding to an outer side in a diametrical direction from an inner diameter position of a yoke, and at least a part of an electric conductor is buried in the flange.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: June 8, 2004
    Assignee: Showa Corporation
    Inventors: Yohei Hama, Akira Fujisaki
  • Electric motor apparatus
    Publication number: 20030209382
    Abstract: In an electric motor, a brush holder is provided with a flange protruding to an outer side in a diametrical direction from an inner diameter position of a yoke, and at least a part of an electric conductor is buried in the flange.
    Type: Application
    Filed: March 4, 2003
    Publication date: November 13, 2003
    Inventors: Yohei Hama, Akira Fujisaki