Patents by Inventor Seitaro Tsutsumi

Seitaro Tsutsumi 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).

  • Color filter and method of producing the same
    Patent number: 5278009
    Abstract: The color filter of the present invention is particularly suitable for a color liquid crystal display (1). Colored pixels (8, 9 and 10) each made of a transparent resin material having a pigment dispersed therein are formed on a transparent substrate (6). The color filter has a protective film (11) formed over the colored pixels by curing a coating film of a photopolymerizable resin composition containing at least a photopolymerizable acrylate oligomer and a multifunctional photopolymerizable acrylate monomer having at least two functional groups in one molecule. The color filter is superior in both heat resistance and light resistance and also excellent in display quality.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: January 11, 1994
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Mitsuru Iida, Seitaro Tsutsumi, Takehiko Ishida