Patents by Inventor Yoshiyasu Inami

Yoshiyasu Inami 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: 6951711
    Abstract: A silver halide color photographic lightsensitive material containing at least one compound capable of increasing photographic speed, the compound having at least three heteroatoms in its molecule, and wherein at least one layer of the silver halide emulsion layers comprises an emulsion, the emulsion consisting of a lightsensitive silver halide emulsion wherein 50% or more in number of all the silver halide grains are occupied by tabular grains having (111) faces as main planes, the tabular grains (i) composed of silver iodobromide or silver chloroiodobromide, (ii) having an equivalent circle diameter of 1.0 ?m or more and a thickness of 0.15 ?m or less, and (iii) composed of core portions of 0.1 ?m or less thickness free of growth ring structure and composed of silver iodobromide and shell portions having ten or more dislocation lines.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: October 4, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaaki Miki, Yoshiyasu Inami, Junichiro Hosokawa
  • Publication number: 20040086812
    Abstract: A silver halide color photographic lightsensitive material containing at least one compound capable of increasing photographic speed, the compound having at least three heteroatoms in its molecule, and wherein at least one layer of the silver halide emulsion layers comprises an emulsion, the emulsion consisting of a lightsensitive silver halide emulsion wherein 50% or more in number of all the silver halide grains are occupied by tabular grains having (111) faces as main planes, the tabular grains (i) composed of silver iodobromide or silver chloroiodobromide, (ii) having an equivalent circle diameter of 1.0 &mgr;m or more and a thickness of 0.15 &mgr;m or less, and (iii) composed of core portions of 0.1 &mgr;m or less thickness free of growth ring structure and composed of silver iodobromide and shell portions having ten or more dislocation lines.
    Type: Application
    Filed: October 23, 2003
    Publication date: May 6, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Masaaki Miki, Yoshiyasu Inami, Junichiro Hosokawa
  • Patent number: 6635413
    Abstract: A process for producing a lightsensitive silver halide emulsion comprising silver halide grains, wherein the emulsion contains tabular silver halide grains in an amount of at least 50% of the total projected area of all the silver halide grains, the average iodine content of all the silver halide grains is at least 2 mol %, and the tabular silver halide grains have at least 10 dislocation lines per grain, wherein the process comprises (step 1) set fourth below, and the process comprises a step of performing chemical sensitization so that a selenium sensitizer is added in an amount of 2.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: October 21, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshiyasu Inami, Hirotomo Sasaki, Hiroshi Takeuchi, Shunichi Aida