Patents by Inventor Shigefumi Tomiyama

Shigefumi Tomiyama 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).

  • Temperature and wear sensor for a brake
    Patent number: 4520661
    Abstract: A temperature and wear sensor for a brake is fixed disposed in a brake cylinder, and the sensor has a slider to be pressed on the side face of a piston of the brake cylinder and a temperature sensing device; thereby wear out of brake lining and overheating of the brake fluid are detected through a pair of lead out wires, and the sensor can be used permanently.
    Type: Grant
    Filed: May 24, 1983
    Date of Patent: June 4, 1985
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takashi Tamai, Shigefumi Tomiyama, Nobumasa Ohshima