Patents by Inventor Shunichi Naito

Shunichi Naito 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).

  • Process for producing color filter plates
    Patent number: 4370396
    Abstract: A process for producing a color filter plate is described, which comprisesforming a color filter pattern on a silver halide emulsion layer of a photographic material comprising a transparent support with the emulsion layer thereon, while the emulsion layer of areas to be removed is subjected to imagewise exposure, development and an etch-bleaching treatment to remove the emulsion layer of the areas,adhering a transparent plate to the emulsion layer, andabrading thereafter either the transparent support or the transparent plate to a desired thickness.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: January 25, 1983
    Assignees: Fuji Photo Film Co., Ltd., Fuji Photo Optical Co., Ltd.
    Inventors: Masamichi Sato, Kenji Matsumoto, Shunichi Naito