Patents by Inventor Hideaki Haraga

Hideaki Haraga 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 that is resistant to fogging during storage
    Patent number: 4871658
    Abstract: A silver halide photographic material is disclosed which comprises a support coated with photographic layers including one or more silver halide emulsion layers, at least one of said silver halide emulsion layers containing silver halide grains with a silver iodide content of 3.0-15 mol %, and at least one of said photographic layers containing a compound represented by the following general formula (I): ##STR1## where Y is an aromatic group or a 5- or 6-membered heterocyclic group.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: October 3, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Eiichi Sakamoto, Yutaka Kaneko, Hidetaka Ninomiya, Takashi Kamio, Atsuo Ezaki, Hideo Akamatsu, Hideaki Haraga