Patents by Inventor Tetsuya Nishizato

Tetsuya Nishizato 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).

  • Hydraulic control system of automatic transmission
    Patent number: 5505675
    Abstract: A hydraulic control system for a power train including a shift speed mechanism, a frictional element for switching a shift characteristic of the shift speed mechanism, a hydraulic control mechanism for controlling a hydraulic pressure, a target shift time setting device for setting a target shift time based on an input speed difference of the shift speed mechanism through the shift operation and an input torque introduced to the shift speed mechanism, an angular acceleration calculator for calculating an angular acceleration of an input member of the shift speed mechanism based on the target shift time obtained through the target shift time setting device and the input speed change of the shift speed mechanism through the shift operation, an inertia hydraulic pressure setting device for setting an inertia hydraulic pressure for coping with a moment force due to a moment of inertia of a power transmitting system to the shift speed mechanism based on the angular acceleration of the input member of the shift spe
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: April 9, 1996
    Assignee: Mazda Motor Corporation
    Inventors: Minoru Kuriyama, Kazuo Sasaki, Tetsuro Takaba, Tetsuya Nishizato, Takashi Ueno