Patents by Inventor Toru Yamasita

Toru Yamasita 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).

  • Control unit for a torque converter with a lockup mechanism
    Patent number: 6341679
    Abstract: In a control unit for a torque converter with a lockup mechanism, the surface temperature of a clutch friction material in a lockup clutch is calculated with a surface temperature calculation unit B3, the surface temperature of the clutch friction material so calculated is compared with a predetermined first allowable temperature with a surface temperature comparison unit B4, and when the surface temperature of the clutch friction material is judged to have reached or exceeded the first allowable temperature, a friction material temperature reduction operating unit B5 is started to operate to reduce the surface temperature of the clutch friction material.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: January 29, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroya Abe, Yoshiharu Saito, Yoshinori Yamamoto, Toru Yamasita