Patents by Inventor Shigenori Hosowari

Shigenori Hosowari 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).

  • Method and apparatus for controlling the fuel injection/ignition timing of internal combustion engines, and a crank angle sensor using same
    Patent number: 5467752
    Abstract: An ignition timing controller for an automobile in which at least two reference ignition point signals are established for each cylinder, and the ignition timing is set according to the reference ignition point signal that is closer to the target ignition timing.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: November 21, 1995
    Assignees: Hitachi, Ltd., Hitachi Automotive Eng. Co.
    Inventors: Yoshinori Murao, Masami Nagano, Shigenori Hosowari
  • Engine control system
    Patent number: 5042446
    Abstract: An engine control system comprises a fuel injection valve, a plate disposed in an air intake passage so as to move according to the intake air flow rate, a fuel distributor including the above-mentioned plate and mechanically controlling fuel flow rate to the fuel injection valve on the basis of the movement of the plate, and an actuator connected to the fuel distributor for increasing or decreasing fuel flow rate to the fuel injection valve, and is characterized in that the engine control system comprises acceleration fuel increment means for incrementing fuel flow rate, to the fuel injection valve from the fuel distributor, necessary to accelerate the engine after detection of acceleration through a control of the actuator.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: August 27, 1991
    Assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co.
    Inventors: Shigenori Hosowari, Takashi Shiraishi