Patents by Inventor Tsutomu Haramoto

Tsutomu Haramoto 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 control means for internal combustion engines
    Patent number: 4253437
    Abstract: Engine fuel control system includes a slow fuel passage for providing a supply of fuel mostly under a light load engine operation. A solenoid type shut-off valve is provided in the slow fuel passage so that the fuel supply is cut-off during deceleration. The valve is opened when the engine speed is decreased to a certain value to recover the fuel supply. The engine speed under which the fuel supply is recovered is lower when the vehicle brake is actuated than that when the brake is not actuated.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: March 3, 1981
    Assignee: Toyo Kogyo Co., Ltd.
    Inventor: Tsutomu Haramoto