Patents by Inventor Masayuki Tsumagari

Masayuki Tsumagari 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).

  • Oil temperature adjusting apparatus in hydraulically operated transmission
    Patent number: 6511396
    Abstract: A heat exchanger 15 is disposed in an oil passage 14 provided in a hydraulic pressure circuit 9 of a hydraulically operated transmission, to conduct heat exchange between cooling water for an engine 2 and hydraulic fluid.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: January 28, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shoichi Tanizawa, Masatoshi Tanioka, Masayuki Tsumagari