Patents by Inventor Shigeru Kuroyanagi

Shigeru Kuroyanagi 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).

  • System for controlling idling speed in internal combustion engine for vehicle with automatic transmission
    Patent number: 4841447
    Abstract: The engine idling speed control system in an internal combustion engine for a vehicle provided with an automatic transmission device. A shift down operation induced for attaining an engine braking effect is detected, and upon detection of such a shift down operation, the idling speed control system is controlled so that the intake air amount is incremented. As a result, an increase in an engine torque is obtained for decreasing shock during a shift down operation executed in an automatic transmission.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: June 20, 1989
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiko Hayashi, Shigeru Kuroyanagi, Kunihiro Iwatsuki