Patents by Inventor Kazufumi Taura

Kazufumi Taura 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).

  • Apparatus for and method of optical position detection
    Patent number: 5117100
    Abstract: The present optical position detection method and the apparatus therefor is adapted to compute an arithmetic mean of the adjusted light reception values received by adjacent photodetectors as the virtual light reception value at the virtual position, compare not only the adjusted light reception values of the respective photodetectors but also the virtual light reception values with the reference level and utilize the virtual position also as the light interruption position data when light interruption is determined, thus enhancing the accuracy of detecting the position of an object.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: May 26, 1992
    Assignee: Dowa Mining Co., Ltd.
    Inventors: Shigeo Yoshida, Isamu Fujimoto, Hideyuki Suzuki, Hiroshi Asano, Toru Hosaka, Takashi Onioh, Kojyu Nagasaki, Kenichi Matsuoka, Kazufumi Taura