Patents by Inventor Takatoshi Masui

Takatoshi Masui 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).

  • Air-fuel ratio control system in an internal combustion engine
    Patent number: 4091781
    Abstract: An air-fuel ratio control system in a twin carburetor type of an internal combustion engine comprising two SU carburetors each provided with an air-bleed passage opening into a main nozzle of said carburetor, a quantity of the bled air being regulated by an electromagnetic valve means which operates in response to an output signal emanating from a common oxygen sensor installed in the exhaust manifold, a phase difference being produced between input signals supplied to the two electromagnetic valve means, by a phase difference control unit.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: May 30, 1978
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masaki Mituyasu, Takatoshi Masui