Patents by Inventor Harumi Ooshima

Harumi Ooshima 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).

  • Disc brake
    Patent number: 7455153
    Abstract: One of brake pads 5 is pressed against the disc rotor D by a piston of a caliper 3 which is floatably supported on the carrier 2, and in reaction thereto, the other brake pad 5 is pressed against the disc rotor D by a claw portion 14 on the caliper 3, thereby producing a braking force. During brake release, the spring force of a return spring 22 separates the brake pad 5 from the disc rotor D. A positioning convex portion 27 is provided on the carrier 2 in a standing position adjacent to the return spring 22, and serves to restrict the sideward movement of the distal end portion of the return spring 22. Thus displacement and deformation of the return spring can be prevented, and its functions can be maintained.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: November 25, 2008
    Assignee: Kabushiki Kaisha Hitachi Seisakusho
    Inventors: Harumi Ooshima, Jun Watanabe, Junichi Hashimoto
  • Disc brake
    Publication number: 20040195057
    Abstract: One of brake pads 5 is pressed against the disc rotor D by a piston of a caliper 3 which is floatably supported on the carrier 2, and in reaction thereto, the other brake pad 5 is pressed against the disc rotor D by a claw portion 14 on the caliper 3, thereby producing a braking force. During brake release, the spring force of a return spring 22 separates the brake pad 5 from the disc rotor D. A positioning convex portion 27 is provided on the carrier 2 in a standing position adjacent to the return spring 22, and serves to restrict the sideward movement of the distal end portion of the return spring 22. Thus displacement and deformation of the return spring can be prevented, and its functions can be maintained.
    Type: Application
    Filed: February 13, 2004
    Publication date: October 7, 2004
    Applicant: Tokico Ltd.
    Inventors: Harumi Ooshima, Jun Watanabe, Junichi Hashimoto