Patents by Inventor Toshiki Fujiwara

Toshiki Fujiwara 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 material
    Patent number: 5434042
    Abstract: A silver halide photographic material contains light-sensitive silver halide grains which are contained contained in a silver halide emulsion layer and which have been selenium sensitized. The silver halide emulsion layer also contains at least one compound represented by the following formula (I): ##STR1## The variables in the formula are defined in the specification.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: July 18, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiki Fujiwara