Patents by Inventor Osao Yamashita

Osao Yamashita 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).

  • Fuel vapor processing apparatus of internal combustion engine
    Patent number: 5363828
    Abstract: In a fuel vapor processing apparatus of a fuel tank for an internal combustion engine, fuel vapor in the fuel tank is supplied to a fuel vapor collecting canister filled with an absorbent, and is absorbed and collected therein, and the absorbed fuel in the canister is introduced into the downstream of a suction air throttle valve in a suction air passage through a control valve.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: November 15, 1994
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Osao Yamashita, Yasunori Nakatsu