Patents Assigned to Nippon Kin-Eki Co., Ltd.
  • Patent number: 5273947
    Abstract: There is disclosed a noble metal-containing overglaze colour composition in a liquid or paste form for application to ceramics. The composition comprises (1) a solution or paste of a resinate of a noble metal, (2) an amount sufficient to serve as a sintering inhibitor and alkali resistance improving agent of a solution or paste of a thorium resinate, (3) an adhesive, in particular bismuth, (4) an appropriate amount of a rosin and (5) an appropriate amount of a solvent and, further, wherein required, (6) chromium and (7) a small amount of rhodium. Preferably, the noble metal is gold, platinum or palladium.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: December 28, 1993
    Assignee: Nippon Kin-Eki Co., Ltd.
    Inventor: Naosuke Ochiai