Patents by Inventor Moeko Higuchi

Moeko Higuchi 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: 4908300
    Abstract: A method of a processing of a silver halide color photographic material is disclosed. The process comprises a step of developing the exposed color photographic material and a step of treating the developed color photographic material with a bleach-fixing solution. The bleach-fixing solution contains an organic acid ferric complex. At least one layer of the emulsion layers of the photographic material contains silver halide grains containing from 0.5 to 25 mol % of silver iodide. The total dry-thickness of the photographic component layers contained in the photographic material is from 8 to 25 .mu.m and the swelling rate T1/2 of the photographic component layers is not more than 25 sec. The method is suitable for rapid processing of the fine grain-type high-speed silver iodide-containing color photographic material. The method uses a bleach-fixing bath enabling the rapid processing of the high-speed color photographic material.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: March 13, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shigeharu Koboshi, Moeko Higuchi, Shinji Kadota
  • Patent number: 4748105
    Abstract: A method of processing of a silver halide color photographic light-sensitive material is disclosed. The color photographic material to be processed comprises a support and photographic component layers including a blue-sensitive, green-sensitive and red-sensitive silver halide emulsion layers, and at least one of the photographic emulsion layers comprises a silver halide containing 0.5 to 25 mol % of silver iodide. The total thickness of the photographic component layers is from 8 to 25 .mu.m and the swelling rate T1/2 of this layers is not more than 25 sec. At least one of the emulsion layers contains a specific coupler. The color photographic material is processed with a bleach-fixing solution containing an organic acid ferric complex after a developing treatment.The processing by this invention provides high sensitivity and minimized cyan dye loss of the photographic material.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: May 31, 1988
    Assignee: Konisiroku Photo Industry Company, Ltd.
    Inventors: Shinzi Kadota, Shigeharu Koboshi, Moeko Higuchi
  • Patent number: 4707434
    Abstract: Disclosed is a color forming method which comprises subjecting a light-sensitive silver halide color photographic material having a photographic constituent layer comprising blue-sensitive, green-sensitive and red-sensitive silver halide emulsion layers on a support and having a total thickness of the photographic constituent layer of 25 .mu.m or less to imagewise exposure, then carrying out color developing processing of the exposed material in the presence of a dye forming coupler and processing the developed image with a bleach-fixing solution.The color forming method of the present invention enables rapid processing of a high sensitivity color light-sensitive material.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: November 17, 1987
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shigeharu Koboshi, Moeko Higuchi
  • Patent number: 4518680
    Abstract: Disclosed is a bleach-fixing solution for light-sensitive silver halide color photographic material, comprising a diethylenetriamine pentaacetic acid iron (III) complex salt and having a pH value of 4.0 or higher. Also disclosed is a method for processing a light-sensitive silver halide color photographic material, which comprises processing a light-sensitive silver halide color photographic material containing a cyan coupler by the use of the above bleach-fixing solution.
    Type: Grant
    Filed: February 9, 1984
    Date of Patent: May 21, 1985
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shigeharu Koboshi, Masao Ishikawa, Kazuhiro Kobayashi, Toshihiko Kimura, Moeko Higuchi