Patents by Inventor Shin-ichi Daiba

Shin-ichi Daiba 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: 5032496
    Abstract: A light-sensitive color photographic material with improved color reproducibility which comprises on a support a plurality of light-sensitive silver halide emulsion layers including a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a blue-sensitive silver halide emulsion layer and at least one silver halide emulsion layer having reverse photo-response to that of the red-, green-, and blue-sensitive silver halide emulsion layers, being capable of forming a reverse dye image having substantially the same hue as that is to be formed in the green-sensitive silver halide emulsion layer, and having maximun sensitivity wavelength (.lambda.-G) of the spectral sensitivity distribution in the region of from 400nm to 500nm.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: July 16, 1991
    Assignee: Konica Corporation
    Inventors: Tsuyoshi Hattori, Shin-ichi Daiba
  • Patent number: 4770978
    Abstract: The present invention relates to an image forming method and apparatus in which a photographic material is subjected to an exposure by scanning with laser beam being of blue, green and red wavelengths as an exposure means, the photographic material used in the above scanning exposure process is a silver halide photographic material comprising blue, green and red sensitive silver halide emulsion layers, the silver halide of at least one of which emulsion layers is silver chloroiodobromide whose silver bromide content is from zero to 65 mol %.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: September 13, 1988
    Inventors: Syoji Matsuzaka, Shin-ichi Daiba, Tsuyoshi Hattori