Patents by Inventor Shigeyasu Kozaki

Shigeyasu Kozaki 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 device for automatic transmission
    Patent number: 6503165
    Abstract: A hydraulic control device for an automatic transmission capable of preventing engine racing and tie-up by controlling disengagement side oil pressure in accordance with an input torque and an oil temperature. Gear-change execution controller U4 controls drain timings T1 and T3 and a drain gradient &dgr;P of the disengagement side oil pressure acting on the frictional engagement elements of the disengagement side according to the magnitude of the input torque and elevation of the oil temperature in torque phase control wherein both the engagement side oil pressure and the disengagement side oil pressure are controlled.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: January 7, 2003
    Assignee: Aisin AW Co., Ltd.
    Inventors: Takayuki Kubo, Hiroshi Niki, Shigeyasu Kozaki