Patents by Inventor Mamoru Sekido

Mamoru Sekido 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).

  • Photographic silver halide photosensitive materials
    Patent number: 3930869
    Abstract: Double merocyanine compounds having the following general formula as referred to hereinafter are useful as sensitizing dyes in siliver halide photosensitive materials.
    Type: Grant
    Filed: January 4, 1974
    Date of Patent: January 6, 1976
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Akira Tanaka, Shoichi Horii, Seigo Ebato, Mamoru Sekido, Shoji Oka