Patents by Inventor Keiichi Hoshimo

Keiichi Hoshimo 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 having a reflective base and an antihalation layer having a specified thickness
    Patent number: 4990432
    Abstract: A silver halide photographic light-sensitive material comprising a reflective support having a transmission density of not more than 0.8, having thereon, a photographic component layer comprising a silver halide emulsion layer and a layer including at least one anti-halation layer formed closer to said support than said silver halide emulsion layer is disclosed. In the photographic material, degradation of image sharpness due to use of a reflective support having low transmission density is prevented.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: February 5, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hajime Komatsu, Susumu Ohkawachi, Yasuo Tosaka, Bunzo Ueda, Keiichi Hoshimo