Patents by Inventor Yuoshinori Hayashi

Yuoshinori Hayashi 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).

  • Displacement detector for an encoder
    Patent number: 4811254
    Abstract: An absolute displacement detector utilizing two sensors and a code bearing track having domains arranged such that relative movement between the sensors and the track produces two signals in phase quadrature which are processed with digital circuitry to provide displacement data indicated by a multiple bit digital word whose higher bits indicate number of domains passed and whose lower bits indicate position within a domain.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: March 7, 1989
    Assignee: Nippon Gakki Seizo Kabushiki Kaisha
    Inventors: Kenzaburou Iijima, Yuoshinori Hayashi, Terumoto Nonaka, Akira Usui