Patents by Inventor Yoshimitsu Anezaki

Yoshimitsu Anezaki 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 structure
    Patent number: 4297612
    Abstract: An electron gun structure which includes at least one cathode electrode, a plurality of grid electrodes including a first grid electrode, and a heater coil. The cathode electrode consists of a tubular cathode sleeve and an electron emissive coating formed on the closed end of it. The heater coil is positioned within the cathode sleeve and has legs welded to the heater supporting straps. The surfaces of the heater straps adjacent cathode sleeve are constructed such that the arcing start potential between the cathode electrode and the heater supporting straps is lower than the arcing start potential between the cathode electrode and the heater coil, thereby preventing arcing to the heater itself.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: October 27, 1981
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventor: Yoshimitsu Anezaki
  • Electron gun structure
    Patent number: 4185223
    Abstract: An electron gun structure which includes at least one cathode electrode, a plurality of grid electrodes including a first grid electrode, and a heater coil. The cathode electrode consists of a tubular cathode sleeve and an electron emissive coating formed on the closed end of it. The heater coil is positioned within the cathode sleeve and has legs welded to heater supporting straps. The surfaces of the heater straps adjacent the cathode sleeve are constructed such that the arcing start potential between the cathode electrode and the heater supporting straps is lower than the arcing start potential between the cathode electrode and the heater coil, thereby preventing arcing to the heater itself.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: January 22, 1980
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventor: Yoshimitsu Anezaki