Patents by Inventor Hisayuki Yamamoto

Hisayuki Yamamoto 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).

  • Crank angle sensor and ignition timing control system using same
    Patent number: 5056485
    Abstract: A crank angle sensor comprises a rotor plate formed with first slits for detecting a first cylinder angular position, second slits for a second cylinder angular position, and a third slit for detecting an angular position of a specified cylinder. The first slits are equi-angularly distant one after another and arranged within a predetermined annular band within the rotor plate, and the second slits are equi-angularly distant one after another and arranged within the predetermined annular band. Each of the first slits is located adjacent to the corresponding one of the second slits.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: October 15, 1991
    Assignee: Nissan Motor Co., Ltd., No. 2
    Inventors: Sadao Kobayashi, Hisayuki Yamamoto