Patents by Inventor Takumi Fujiuchi

Takumi Fujiuchi 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 assembly, electron gun assembly, electron tube, heater, and method of manufacturing cathode assembly and electron gun assembly
    Patent number: 6130502
    Abstract: A cathode assembly (27) includes a thermally conductive insulating substrate (21) having a pair of opposing surfaces. A cathode base member (24) is formed on one surface of the insulating substrate, and a heating member (25) for heating the cathode base member is formed on the other surface of the insulating substrate. A heater electrode terminal (26) is fixed to the electrode of the heating member through a metal layer (26a). A first grid (30) is fixed to the insulating substrate to oppose the cathode base member through a predetermined space.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: October 10, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuo Kobayashi, Takashi Sudo, Toshiharu Higuchi, Hideharu Takahashi, Sakae Kimura, Shinpei Koshigoe, Takumi Fujiuchi