Patents Assigned to Tokyo Densouku Kabushiki Kaisha
  • Discharge tube with glow and arc discharge electrodes
    Patent number: 5214351
    Abstract: A discharge tube includes a pair of electrode devices mounted within a discharge tube body in an opposed relation to each other, each of the pair of electrode devices including an arc discharge electrode and a glow discharge electrode. An electron-radiating substance vaporized and emitted in a scattered manner from the arc discharge electrode is captured by the glow discharge electrode. The arc discharge electrode is composed of a sintered body containing the electron-radiating substance therein.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: May 25, 1993
    Assignees: Tokyo Densouku Kabushiki Kaisha, Noritake Co., Limited
    Inventor: Yoriyuki Nieda