Patents by Inventor Yoshihei Masai

Yoshihei Masai 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).

  • Retarder brake automatic control system
    Patent number: 4485444
    Abstract: A retarder brake automatic control system capable of causing a vehicle to run downhill at a speed set by a speed setter, in which a vehicle speed is automatically controlled by means of a microcomputer. The microcomputer includes a fault detector which detects abnormality in factors for safety running of the vehicle, and controls a retarder brake so as to cause the vehicle to run at an appropriate speed in accordance with the output of the fault detector.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: November 27, 1984
    Assignee: Kabushiki Kaisha Komatsu
    Inventors: Yasuhiro Maruyama, Takaichi Saigo, Sakae Tanahashi, Yoshihei Masai