Patents by Inventor Tatsuo Ogawahara

Tatsuo Ogawahara 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).

  • Brake actuating apparatus for a vehicle
    Patent number: 5348123
    Abstract: A brake actuating apparatus which includes a motor disposed at a brake caliper, a driving piston connecting through a converting member which converts a rotary motion of the motor into a linear motion, and a fluid chamber disposed between the driving piston and a pad urging piston for urging the brake pad in the brake caliper, and a diameter of the driving piston is arranged smaller than that of the pad urging piston.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: September 20, 1994
    Assignees: Akebono Brake Industry Co., Ltd., Akebono Research and Development Centre Ltd.
    Inventors: Kimio Takahashi, Katsuya Miyake, Takashi Kunimi, Tatsuo Ogawahara, Tadashi Kobayashi, Kunio Fukaya
  • Fail-safe system and brake actuating apparatus for a vehicular brake control apparatus
    Patent number: 5302008
    Abstract: A brake control system for a vehicle in which a brake pressure is generated in accordance with a signal from an electronic control unit for applying the brake pressure to vehicle wheels, characterized in that a mechanical brake system is automatically actuated when an unexpected electrical fault has occurred in an electrical brake system.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: April 12, 1994
    Assignees: Akebono Brake Industry Co., Ltd., Akebono Research and Development Centre Ltd.
    Inventors: Katsuya Miyake, Tatsuo Ogawahara, Takashi Kunimi, Tadashi Kobayashi, Masahiro Nezu, Kimio Takahashi, Masatomo Mori, Takashi Kurosawa