Patents by Inventor Shingo Yamauchi

Shingo Yamauchi 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).

  • Silver halide photographic light-sensitive material for photomechanical process and method of reduction treatment therefore
    Patent number: 4551412
    Abstract: A silver halide photographic light-sensitive material for photo-mechanical process comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one light-insensitive upper layer which is positioned above the light-sensitive silver halide emulsion layer, wherein at least one of the light-insensitive upper layers has a melting time longer than a melting time of the light-sensitive silver halide emulsion layer and the light-insensitive upper layer contains a polymer latex.The silver halide photographic light-sensitive material has excellent aptitude for reduction treatment without increasing the amount of silver per unit area. The occurrence of reticulation is prevented with the silver halide photographic light-sensitive material.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: November 5, 1985
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masashi Ogawa, Taku Nakamura, Yukihide Urata, Shingo Yamauchi