Patents by Inventor Yasushi Motoyama

Yasushi Motoyama 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).

  • Gaseous discharge display
    Patent number: 5652478
    Abstract: A display anode connected to a display anode bus bar and a display cathode connected to a cathode bus bar cooperatively constitute a display cell. An auxiliary anode connected to an auxiliary anode bus bar and an auxiliary cathode connected to an auxiliary cathode bus bar cooperatively constitute an auxiliary cell. Each of the display anode is connected in series with a display anode resistance. Each of the auxiliary anode is connected in series with an auxiliary anode resistance.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: July 29, 1997
    Assignees: Matsushita Electronics Corporation, Nippon Hoso Kyokai
    Inventors: Tetsuo Sakai, Keiji Ishii, Mizumoto Ushirozawa, Yoshimichi Takano, Yukio Murakami, Yasushi Motoyama, Kazuo Takahashi
  • DC type gas-discharge display panel and gas-discharge display apparatus with employment of the same
    Patent number: 5559403
    Abstract: A DC type gas-discharge display panel comprises a plurality of discharge cells; discharge current limiting means provided for each of the discharge cells, for limiting a discharge current of each of said discharge cells; and a filling gas filled into each of said discharge cells, and having an inert gas mixture. A partial pressure ratio of said inert gas mixture to total pressure of said filling gas is at least 0.95. The above-described inert gas mixture is selected from the group consisting of (1) a first gas mixture consisting of a He gas and a Xe gas, (2) a second gas mixture consisting of a He gas, a Xe gas, and a Kr gas, (3) a third gas mixture consisting of a Ne gas and a Xe gas, and (4) a fourth gas mixture consisting of a Ne gas, a Xe gas and a Kr gas.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: September 24, 1996
    Assignee: Nippon Hoso Kyokai
    Inventors: Tetsuo Sakai, Yasushi Motoyama, Mizumoto Ushirozawa
  • DC type gas-discharge display panel and gas-discharge display apparatus with employment of the same
    Patent number: 5510678
    Abstract: A DC type gas-discharge display panel comprises a plurality of discharge cells; discharge current limiting means provided for each of the discharge cells, for limiting a discharge current of each of said discharge cells; and a filling gas filled into each of said discharge cells, and having an inert gas mixture. A partial pressure ratio of said inert gas mixture to total pressure of said filling gas is at least 0.95. The above-described inert gas mixture is selected from the group consisting of (1) a first gas mixture consisting of a He gas and a Xe gas, (2) a second gas mixture consisting of a He gas, a Xe gas, and a Kr gas, (3) a third gas mixture consisting of a Ne gas and a Xe gas, and (4) a fourth gas mixture consisting of a Ne gas, a Xe gas and a Kr gas.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: April 23, 1996
    Assignee: Nippon Hoso Kyokai
    Inventors: Tetsuo Sakai, Yasushi Motoyama, Mizumoto Ushirozawa