Patents by Inventor Toshiyasu Eguchi

Toshiyasu Eguchi 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).

  • Liquid crystal display device having optically activatable switch means
    Patent number: 5064275
    Abstract: A liquid crystal display device comprises a plurality of lateral electrodes and a plurality of longitudinal electrodes carried on a pair of substrates. A scanning signal addressing one of the lateral electrodes is supplied to a scanning signal bus which is connected to each of the lateral electrode via an optically activated switch and a video signal to be supplied to one of the longitudinal electrodes is supplied to a display signal bus which is connected to each of the longitudinal signal bus. The optically activated switches are selectively activated by irradiation of an optical beam and the scanning signal and the video signal are supplied to the addressed electrodes.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: November 12, 1991
    Assignees: Victor Company of Japan, Ltd., Tokai Company
    Inventors: Ichiro Tsunoda, Toshiyasu Eguchi
  • Liquid crystal display device
    Patent number: 4952031
    Abstract: A liquid crystal display device comprises a plurality of lateral electrodes and a plurality of longitudinal electrodes carried on a pair of substrates. A scanning signal addressing one of the lateral electrodes is supplied to a scanning signal bus which is connected to each of the lateral electrode via an optically activated switch and a video signal to be supplied to one of the longitudinal electrodes is supplied to a display signal bus which is connected to each of the longitudinal signal bus. The optically activated switches are selectively activated by irradiation of an optical beam and the scanning signal and the video signal are supplied to the addressed electrodes.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: August 28, 1990
    Assignees: Victor Company of Japan, Ltd., Tokai University
    Inventors: Ichiro Tsunoda, Toshiyasu Eguchi