Patents by Inventor Masakatu Arai

Masakatu Arai 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).

  • Cathode ray tube with supporting members each having a first and second support portion for improved bearing of atmospheric pressure between the faceplate and the rearplate
    Patent number: 5831372
    Abstract: A vacuum envelope includes a flat faceplate and a flat rear plate opposed to the faceplate. A phosphor screen is formed on an inner surface of the faceplate. A plurality of support members are located between the faceplate and the rear plate and bear atmospheric pressure acting on the faceplate and the rear plate. Each support member has first and second support portions. The first support portion is set up on the rear plate and has a proximal end face intimately in contact with the inner surface of the rear plate and a bearing surface substantially parallel to the rear plate. The second support portion is provided between the bearing surface of the first support portion and the faceplate, and has a distal end abutting against a predetermined position on the inner surface of the faceplate and a proximal end portion intimately in contact with the bearing surface of the first support portion.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: November 3, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuyuki Seino, Takashi Nishimura, Masakatu Arai, Hitoshi Nagai, Eiji Kamohara