Patents by Inventor Takeshi Hakii

Takeshi Hakii 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 element and silver halide photographic light sensitive material
    Publication number: 20020187443
    Abstract: A photographic element is disclosed, comprising a yellow dye forming coupler, a magenta dye forming coupler and a cyan dye forming coupler, wherein spectral reflection absorption characteristics of a yellow dye, a magenta dye and a cyan dye which are formed of the yellow dye forming coupler, the magenta dye forming coupler and the cyan dye forming coupler, respectively, meet the following requirements:
    Type: Application
    Filed: January 31, 2002
    Publication date: December 12, 2002
    Inventor: Takeshi Hakii
  • Silver halide photographic light sensitive material and image forming method using thereof
    Patent number: 6183945
    Abstract: In a silver halide photographic light sensitive material having at least one emulsion layer provided on a support, a silver halide photographic light sensitive material characterized in that at least one of the silver halide emulsion layer comprises a magenta dye forming coupler represented by a formula (M-1) or (M-1′) described below, and a molar ratio MA/MC of silver halide and the magenta dye forming coupler in the silver halide emulsion layer containing the magenta dye forming coupler is 3.1 to 3.7 wherein MA is mols per unit area of silver halide in the silver halide emulsion layer, and MC is mols per unit area of the magenta dye forming coupler in the silver halide emulsion layer.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: February 6, 2001
    Assignee: Konica Corporation
    Inventors: Hirokazu Sato, Takeshi Hakii