Patents by Inventor Hiroshi Menjo

Hiroshi Menjo 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: 4907040
    Abstract: Disclosed are an active matrix element and a method of manufacturing the same, wherein two first electrode layers are formed on a substrate, semiconductor thin films are formed on regions including the two first electrode layers, respectively, a second electrode layer is formed on the semiconductor thin layers and constituting Schottky barriers between the semiconductor layers and the second electrode layer.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: March 6, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hiroshi Kobayashi, Taxay Sato, Hiroshi Menjo, Shinichi Nishi, Hideo Watanabe
  • Patent number: 4617258
    Abstract: A silver halide photographic material is disclosed. It contains per 100 g of silver at least 40 mg of a water-soluble compound comprising an element of group VIII of the periodic table and having a molecular weight of at least 100, and 1.2 to 120 mg of a black-and-white silver halide developing agent. The material has improved gradation characteristics and is subject to minimum variation in photographic characteristics.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: October 14, 1986
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hiroshi Menjo, Nobuo Sakamoto, Yoshikazu Watanabe
  • Patent number: 4543323
    Abstract: There is disclosed a light-sensitive silver halide photographic material having at least one light-sensitive layer constituted of a plural number of silver halide emulsions provided on a support, and a non-light-sensitive intermediate layer containing a diffusion resistant coupler capable of forming a migratable color forming dye or a compound capable of forming a flow-out type coupling product provided at least adjacent to the silver halide emulsion layer with the highest light sensitivity among the plural number of silver halide emulsion layers on its support side.The light-sensitive material according to this invention exhibits excellent photographic characteristics such as sensitivity, graininess, sharpness, storability and gradation.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: September 24, 1985
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toshifumi Iijima, Satoshi Nakagawa, Hiroshi Menjo
  • Patent number: 4500633
    Abstract: A silver halide photographic material having formed on a support two or more layers that have different light sensitivities but have substantially the same color sensitivity is disclosed. In the material, the layer having the highest light sensitivity contains only a compound of formula (I) as a DIR compound and at least one of the remaining layers contains at least one compound of formula (II) as a DIR compound:A--TIME--Z (I)A--Z (II)wherein A is a coupling component capable of reaction with the oxidized product of a color developing agent to release the group TIME--Z (wherein TIME represents a timing group and Z represents a development retarder). The photographic material has improved sharpness and granularity and wide latitude for exposure.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: February 19, 1985
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hiroshi Menjo, Yoshikazu Watanabe
  • Patent number: 4481288
    Abstract: There is disclosed a light-sensitive silver halide photographic material having at least one silver halide emulsion layer constituted of a plural number of layers which are substantially the same in color to which they are sensitive but different in sensitivity provided on a support, which comprises a layer having the highest sensitivity among the plural number of layers with different sensitivities which contains at least two kinds of substantially mono-dispersed silver halide grains with different average grain sizes.The light-sensitive silver halide photographic material according to this invention is high in sensitivity and excellent in graininess of dye image.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: November 6, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yoshitaka Yamada, Toshifumi Iijima, Toshihiko Yagi, Yoshihiro Haga, Kenji Kumashiro, Hiroshi Menjo
  • Patent number: 4477561
    Abstract: A silver halide photographic material having formed on a support two or more layers that are sensitive to the lights of substantially the same spectral region but different in light sensitivity is disclosed. At least one of the layers other than the one having maximum light sensitivity contains at least 40 mg, per 100 g of silver, of a water-soluble compound containing an element of Group VIII of the periodic table which has a molecular weight of 100 or more. The material has a wide latitude for exposure, and this latitude will not vary greatly with time during storage.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: October 16, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hiroshi Menjo, Yoshikazu Watanabe, Nobuo Sakamoto