Patents by Inventor Sumio Uozumi

Sumio Uozumi 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).

  • Power transmission system
    Patent number: 4018106
    Abstract: In an automotive power transmission system wherein the engine output shaft is connected to the input shaft of the speed change gear unit through a fluid torque converter, an intermediate shaft, chain wheels and a chain drive, in that order, with a direct drive clutch and an overdrive unit being provided between the engine power shaft and the intermediate shaft or the chain wheels, drive may be transmitted directly to the speed change gear unit during high speed operation in a manner which bypasses the fluid torque converter with or without overdrive.
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: April 19, 1977
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Sumio Uozumi, Fmihiro Ushijima
  • Control system for automatic transmissions of automotive vehicles
    Patent number: 3938409
    Abstract: An hydraulic control circuit for an automotive vehicle automatic transmission includes an oil pump driven by a motor and shift valves for applying hydraulic pressures to hydraulic servos for engaging or disengaging clutches and for applying or releasing brake bands causing upshift or downshift of the transmission.
    Type: Grant
    Filed: September 4, 1973
    Date of Patent: February 17, 1976
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventor: Sumio Uozumi