Patents by Inventor Tatsuya Kurobuchi

Tatsuya Kurobuchi 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).

  • Fluorescent display tube
    Patent number: 5834892
    Abstract: To obtain a fluorescent display tube which allows the cathode to be driven by a DC current from a battery even when the overall length of the tube becomes large. This object can be achieved by: placing anchors 11A and 11B on both ends of the cathode 10; placing a support on the middle point between the anchors 11A and 11B, to which part of the cathode 10 has been fixed; and adjusting the lengths between the support and the anchors 11A and 11B to be 100 mm or less, and then adding DC power sources 13A and 13B which pass DC currents negative with respect to the support, and positive with respect to the anchors 11A and 11B between the support 12 and the anchors 11A and 11B.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: November 10, 1998
    Assignee: Futaba Denshi Kogyo K.K.
    Inventors: Yasuyuki Kikuchi, Tatsuya Kurobuchi