Patents by Inventor Yositeru Takahasi

Yositeru Takahasi 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).

  • Apparatus for injecting LP gas into diesel engine
    Patent number: 4909209
    Abstract: An important for a diesel engine by injecting LP gas into the diesel engine. A solenoid valve and a pressure controller are provided in a line between an LP gas cylinder and a gas injector mounted on the air inlet of the diesel engine. The solenoid valve is activated only when the engine temperature has risen above a predetermined level and only after the vehicle speed has exceeded a predermined level. This arrangement increases the output of the diesel engine, saves the fuel cost and eliminates black smoke.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: March 20, 1990
    Assignee: Nihon Kankyo Denso Co., Ltd.
    Inventor: Yositeru Takahasi