Patents by Inventor Tosiki Kurokawa

Tosiki Kurokawa 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).

  • Fuel injection control device for internal combustion engine
    Patent number: 6647967
    Abstract: A fuel injection control device for an internal combustion engine is provided, which comprises: a rpm sensor for detecting an engine speed; an intake pressure sensor for detecting an intake pressure; a throttle sensor for detecting the throttle opening degree; a first basic fuel injection volume calculating device for calculating a first basic fuel injection volume according to a fuel volume calculated by using the engine speed and the intake pressure as parameters; a second basic fuel injection volume calculating device for calculating a second basic fuel injection volume according to a fuel volume calculated by using the engine speed and the throttle opening degree as parameters; and a ratio calculating device for performing arithmetic operations on the first basic fuel injection volume and the second basic fuel injection volume at a desired mixture ratio, and the ratio calculating device gradually changes the mixture ratio at regular time intervals.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: November 18, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Wataru Fukui, Tosiki Kurokawa
  • Fuel injection control device for internal combustion engine
    Publication number: 20030010323
    Abstract: A fuel injection control device for an internal combustion engine is provided, which comprises: a rpm sensor for detecting an engine speed; an intake pressure sensor for detecting an intake pressure; a throttle sensor for detecting the throttle opening degree; a first basic fuel injection volume calculating device for calculating a first basic fuel injection volume according to a fuel volume calculated by using the engine speed and the intake pressure as parameters; a second basic fuel injection volume calculating device for calculating a second basic fuel injection volume according to a fuel volume calculated by using the engine speed and the throttle opening degree as parameters; and a ratio calculating device for performing arithmetic operations on the first basic fuel injection volume and the second basic fuel injection volume at a desired mixture ratio, and the ratio calculating device gradually changes the mixture ratio at regular time intervals.
    Type: Application
    Filed: November 30, 2001
    Publication date: January 16, 2003
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Wataru Fukui, Tosiki Kurokawa