Patents by Inventor Katsuto Miura

Katsuto Miura 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).

  • Ignition timing control apparatus for an internal combustion engine
    Patent number: 4484555
    Abstract: A solenoid switching valve is arranged between an advance port near a throttle valve and a negative pressure advancing device which drives a governor advancing device in accordance with a magnitude of an intake negative pressure introduced from the advance port to advance an ignition timing. When a transmission gear is at a high speed gear position, when an engine coolant temperature is below a predetermined temperature or when an engine is operated under a light load condition, the advance port is communicated with the negative pressure advancing device through the solenoid switching valve. When the transmission gear is at other than the high speed gear position and the engine coolant temperature is above a predetermined temperature and the engine is operated under a high load condition, atmosphere is introduced into the negative pressure advancing device through the solenoid switching valve to forcibly suppress the operation of the negative pressure advancing device.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: November 27, 1984
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Katsuto Miura