Patents by Inventor Kenta Yokoo

Kenta Yokoo 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 detecting X and Y coordinates of input points
    Patent number: 4319078
    Abstract: The input surface of the apparatus for detecting X and Y coordinates of the input points comprises a first parallel electrode group, a second flexible parallel electrode group opposing and intersecting the first parallel electrode group. A pressure conductive rubber sheet which becomes conductive when the pressure is applied to the input surface is interposed between the two electrode groups. First and second resistors are provided which are in electrical contact with terminal ends of the two electrode groups. Electric signals from the first and second resistors are used to detect X and Y coordinates of input points on the input surface.
    Type: Grant
    Filed: March 11, 1980
    Date of Patent: March 9, 1982
    Assignee: Nippon Telegraph & Telephone Public Corporation
    Inventors: Kenta Yokoo, Tomio Kishimoto, Yuichi Sato