Patents by Inventor Kobuo Takeuchi

Kobuo Takeuchi 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).

  • Throttle valve control system for internal combustion engine
    Patent number: 4691677
    Abstract: A throttle valve control system comprises an accelerator position sensor for detecting the amount of operation of the accelerator, a throttle valve opening degree determining circuit which receives the output of the accelerator position sensor and determines the opening degree of the throttle valve, and a throttle valve driving device which drives the throttle valve to the position corresponding to the opening degree determined by the throttle valve opening degree determining circuit. The throttle valve opening degree determining circuit is arranged to determine the opening degree of the throttle valve with respect to the amount of operation of the accelerator so that the change in the opening degree of the throttle valve for a given change in the amount of operation of the accelerator is relatively small when the amount of operation of the accelerator is in an intermediate range and is relatively large when the amount of operation of the accelerator is above or below the intermediate range.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: September 8, 1987
    Assignee: Mazda Motor Corp.
    Inventors: Makoto Hotate, Toshio Nishikawa, Kobuo Takeuchi, Itaru Okuno, Tadataka Nakazumi