Patents Represented by Law Firm Watson, Cole, Grindle & Wastson
  • Paste for forming a thick conductive film
    Patent number: 4603007
    Abstract: A paste for forming a thick electrically conductive film, which may, for example, be used to produce a touch panel for an electric appliance, contains 40 to 55% by weight of lead borosilicate glass powder containing 1 to 5% by weight of titanium oxide, a total of 15 to 35% by weight of ruthenium oxide powder and silver and/or palladium powder, 1 to 5% by weight of bismuth oxide powder and 1 to 5% by weight of alumina powder in an organic vehicle.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: July 29, 1986
    Assignees: Sumitomo Metal Mining Company Limited, Shimomoto Giken Co., Ltd.
    Inventors: Koushiro Shibata, Tohru Miyoshi, Isamu Hiraoka, Takeshi Shimomoto