Patents by Inventor Takeo Oyama

Takeo Oyama 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).

  • Patent number: 4377150
    Abstract: An internal combustion engine provided with an idling adjusting device including a by-pass air passage which by-passes a throttle valve in a main air passage. The engine is further provided with an auxiliary air introducing device which increases the cross-sectional area of the by-pass air passage as engine temperature and/or ambient air temperature are above respectively predetermined temperatures during starting operation of the engine.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: March 22, 1983
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hidetoshi Kitamura, Takeo Oyama