Patents by Inventor Katuhiko Kinugawa

Katuhiko Kinugawa 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).

  • Colored film forming composition and method of manufacturing colored film coated glass product
    Patent number: 6120850
    Abstract: By using a colored film forming composition, which contains at least an organic silicon compound and chloroauric acid and to which is added at least one type of compound exhibiting the maximum exothermic peak in the range of 170.degree. C. to 250.degree. C., in differential thermal analysis, the precipitation of gold micro-particles on the film surface can be prevented and gold micro-particle dispersion glass can be manufactured in a stable manner.The colored film forming composition of the present invention can thus be used for coating the surface of glass products, especially, windows, mirrors, etc. of automobiles and other vehicles and buildings.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: September 19, 2000
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Mitsuhiro Kawazu, Katuhiko Kinugawa, Taro Miyauchi, Koichi Maeda