Patents by Inventor Satoshi Maruchi

Satoshi Maruchi 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).

  • Automatic transmission control system incorporating an exhaust brake
    Patent number: 4782724
    Abstract: In an automatic transmission having a torque converter, a planetary gear mechanism receiving an output from the torque converter and including brakes and clutches, and a hydraulic pressure circuit for actuating the brakes and clutches. An arrangement is provided for varying servo hydraulic pressure, which is for achieving low gear, in dependence upon vehicle velocity.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: November 8, 1988
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Choji Furusawa, Shigeki Goto, Isamu Minemoto, Satoshi Maruchi
  • Exhaust brake control system
    Patent number: 4669435
    Abstract: An exhaust brake control system includes an input switch for commanding actuation of an exhaust brake, a throttle sensor for sensing that an accelerator pedal has been depressed in excess of a predetermined angle, a control unit for outputting a control signal in dependence upon output signals from the input switch and throttle sensor, and a valve means for opening and closing an exhaust passageway in dependence upon a control signal produced by the control unit. The control unit includes a shift sensor for sensing at least an L-range shift of an automatic transmission, and a servo hydraulic pressure sensor for sensing servo hydraulic pressure that actuates a servo piston for establishing 1st speed range.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: June 2, 1987
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Choji Furusawa, Shigeki Goto, Satoshi Maruchi, Isamu Minemoto