Patents by Inventor Hisaharu Yamaguchi

Hisaharu Yamaguchi 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).

  • Method of insulating stem pins of a cathode ray tube
    Patent number: 6501212
    Abstract: A method of insulating a cathode ray tube and an electrical insulator composition for a cathode ray tube enabling an electrical insulator to be produced without material loss and enabling improvement of the bonding strength between a stem and a stem base and the insulation property between stem pins, when attaching to a stem, which is provided at the cathode ray tube and has a tip and stem pins projecting therefrom, an insulating stem base, which comprises a base through which pin through holes are formed and has provided projecting from the front surface thereof a tip holder, in a state with the stem pins inserted through the pin through holes and the tip held in the tip holder, said method comprising the steps of molding an electrical insulator composition comprising an uncured self-adhesive silicone rubber into a predetermined sheet shape by using a transfer mold to obtain an electrical insulator, arranging the electrical insulator in a state extending from the positions of the pin through holes on the bac
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: December 31, 2002
    Assignee: Sony Corporation
    Inventors: Takashi Setsuda, Hirokazu Kanno, Kazuhiko Tomaru, Tsutomu Yoneyama, Hisaharu Yamaguchi
  • Method of insulating stem pins of a cathrode ray tube
    Patent number: 6106350
    Abstract: A method of insulating a cathode ray tube and enabling an electrical insulator to be produced without material loss and enabling improvement of the bonding strength between a stem and a stem base, which comprises a base through which pin through holes are formed and has provided projecting from the front surface thereof a tip holder, in a state with the stem pins inserted through the pin through holes and the tip held in the tip holder, said method comprising the steps of molding an electrical insulator composition comprising an uncured self-adhesive silicone rubber into a predetermined sheet shape by using a transfer mold to obtain an electrical insulator, arranging the electrical insulator in a state extending from the positions of the pin through holes on the back of the base of the stem base to the tip holder and adhering it to the back of the base, folding the portion of the electrical insulator extending to the tip holder to the inside surface of the tip holder, and attaching the stem base to the stem.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: August 22, 2000
    Assignees: Sony Corporation, Shin-Etsu Chemical Co., Ltd.
    Inventors: Takashi Setsuda, Hirokazu Kanno, Kazuhiko Tomaru, Tsutomu Yoneyama, Hisaharu Yamaguchi