Patents by Inventor Tsutomu Konda

Tsutomu Konda 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).

  • Rare gas discharge lamp
    Patent number: 5117160
    Abstract: A phosphor layer is coated on an inner wall of a tubular glass bulb. A predetermined amount of a rare gas containing xenon gas as a main component thereof is sealed and enclosed in the tubular glass bulb. A pair of belt-shaped electrodes are formed on an outer wall of the enclosed glass bulb throughout substantially the entire length of the glass bulb.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: May 26, 1992
    Assignee: NEC Corporation
    Inventors: Tsutomu Konda, Seiichiro Fujioka, Satoshi Tamura, Osamu Matsubara, Shodo Yoshida