Patents by Inventor Tsuneo Muti

Tsuneo Muti 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).

  • Electron gun for a cathode ray tube having a plurality of electrodes layers forming a main lens
    Patent number: 5670841
    Abstract: An electron gun having at least one tube, a pair of holders for holding both ends of the tube, a plurality of electrode layers which are provided on the inner surface of the tube so as to form a part of a main lens, at least one conductive layer provided on the surface of the tube, and a plurality of electrodes for forming a part of triode. Also, a method of manufacturing an electron gun comprises the steps of forming a plurality of electrode layers on the inner surface of at least one tube, providing at least one conductive layer on the surface of the tube, providing a pair of holders so as to hold both ends of said tube, providing a voltage supplying device on one of the pair of holders, and welding a plurality of electrodes forming a part of a triode to the other of the pair of holders.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: September 23, 1997
    Assignee: Sony Corporation
    Inventors: Tsuneo Muti, Tsunenari Saito
  • Electron gun for a cathode ray tube
    Patent number: 5489229
    Abstract: Method of manufacturing an electron gun comprises the steps of forming a plurality of electrode layers on the inner surface of at least one tube, providing at least one conductive layer on the surface of the tube, providing a pair of holders so as to hold both ends of said tube, providing a voltage supplying device on one of the pair of holders, and welding a plurality of electrodes forming a part of a triode to the other of the pair of holders.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: February 6, 1996
    Assignee: Sony Corporation
    Inventors: Tsuneo Muti, Tsunenari Saito