Patents by Inventor Seiji Sega

Seiji Sega 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).

  • Gas discharge display panel
    Patent number: 4780644
    Abstract: A gas-discharge memory-type display panel having distinctively high radiation efficiency is realized by plural negative glow type discharge cells operating with a discharge electrode distance normalized filled gas pressure product (d.multidot.p.sub.o) being in the range of 0.5 to 8.0 Torr.multidot.cm, at an average discharge current of less than 50 .mu.A. Improved radiation efficiency can be further raised by direct viewing of radiation from fluorescent layers arranged flat on a rear plate of a simplified two-plate structure of a sealed envelope which can be readily manufactured.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: October 25, 1988
    Assignee: Nippon Hoso Kyokai
    Inventors: Tetsuo Sakai, Hiroshi Murakami, Seiji Sega