Patents by Inventor Mineko Ito

Mineko Ito 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).

  • Silver halide color photographic light-sensitive material
    Patent number: 5780215
    Abstract: A silver halide color photographic material comprises a paper support, and provided thereon, a light sensitive silver halide emulsion layer and a non-light sensitive layer, said support comprising a paper base and a resin layer coated on each side of the paper base, the resin layer on the silver halide emulsion layer side comprising two or more resin layers containing white pigment and having a different white pigment content, at least one of the resin layers being composed of a polyolefin or polyester resin, and at least another one layer being composed of a resin selected from the group consisting of a polyester resin, a polyether resin, a polyurethane resin, a polycarbonate resin, a polystyrene resin, a cellulose derivative and an electron beam hardened rein, wherein the silver halide emulsion layer comprises a silver halide emulsion having a silver chloride content of 95 to 99.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: July 14, 1998
    Assignee: Konica Corporation
    Inventor: Mineko Ito
  • Silver halide photographic light-sensitive material
    Patent number: 5707791
    Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a polyester support having on one side thereof a silver halide emulsion layer, and on the other side of the support, a layer containing a polyester resin or polyurethane resin and further thereon a magnetic recording layer.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: January 13, 1998
    Assignee: Konica Corporation
    Inventors: Mineko Ito, Koichi Saito, Chieko Uehara
  • Silver halide photographic light-sensitive material
    Patent number: 5459021
    Abstract: A silver halide photographic light-sensitive material is provided, comprising a support having on one side thereof a silver halide emulsion layer, wherein the photographic light-sensitive material has a magnetic recording layer on the other side of the support, and having, on at least one side the support, a layer containing metal oxide particles having a crystallite size, on the average, of 1 to 20 nm.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: October 17, 1995
    Assignee: Konica Corporation
    Inventors: Mineko Ito, Koichi Saito, Yasuo Kurachi
  • Silver halide emulsions with silver halide grain groups of different desensitizing agent content
    Patent number: 5039601
    Abstract: A silver halide color negative photographic light-sensitive material is disclosed which is improved on stability to fluctuation of processing conditions applied thereon, and has a sufficient wide exposure latitude. The photographic material is also improved on standing stability of silver halide emulsion in the course of manufacturing thereof. The photographic material comprises a support having thereon photographic component layers including at least one silver halide emulsion layer containing at least two groups of silver halide grains each being substantially different in desensitizing agent content from each other.
    Type: Grant
    Filed: September 5, 1990
    Date of Patent: August 13, 1991
    Assignee: Konica Corporation
    Inventors: Yukio Ohya, Syoji Matsuzaka, Hirofumi Ohtani, Yoshiro Ito, Mineko Ito