Patents by Inventor Yasuhiro Wakasugi

Yasuhiro Wakasugi 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).

  • Patent number: 5582966
    Abstract: A method for producing a silver halide photographic light-sensitive material is disclosed. The silver halide photographic light-sensitive material comprises a support having thereon photographic layers including a silver halide emulsion layer, a first hydrophilic colloid layer and an outermost second hydrophilic colloid layer in this order from the support. The light-sensitive material is produced by a method comprising steps offorming the photographic layer by coatinga silver halide emulsion coating solution comprising silver halide grains, gelatin and water to form said silver halide emulsion layer;a first hydrophilic colloid solution comprising gelatin and water to form said first hydrophilic colloid layer; anda second hydrophilic colloid solution comprising gelatin, particles of matting agent having a size of not less than 4 .mu.m in an amount of 4 mg/m.sup.2 to 50 mg/m.sup.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: December 10, 1996
    Assignee: Konica Corporation
    Inventors: Hiroshi Nakamura, Toshiharu Nagashima, Yasuhiro Wakasugi