Patents by Inventor Kenichiro Sudo

Kenichiro Sudo 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).

  • Thermal transfer image-receiving sheet
    Patent number: 5943084
    Abstract: The present invention aims to provide a thermal transfer image-receiving sheet which does not suffer from any cockle problem, during printing, associated with a printer or a dye transfer film used. The thermal transfer image-receiving sheet comprises a substrate sheet and, provided on at least one surface thereof in the following order, an intermediate layer and a receptive layer, the intermediate layer containing either an acrylic polyol or cellulose acetate butyrate.Further, the present invention provides a thermal transfer image-receiving sheet which has a capability of preventing curling and causes no damage to an image-receiving surface even when image-receiving sheets put on top of each other or one another are used. This thermal transfer image-receiving sheet comprises a back surface layer provided on a substrate sheet in its surface where no image is to be formed, the back surface layer containing an acrylic polyol.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: August 24, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayasu Yamazaki, Kenichiro Sudo, Satoru Kawai, Takeshi Nozaki
  • Thermal transfer image-receiving sheet
    Patent number: 5824623
    Abstract: There is provided a thermal transfer image-receiving sheet comprising: a substrate sheet; and an image-receiving layer provided on one side of the substrate sheet, the image-receiving layer comprising a copolymer, having an average degree of polymerization of 800 to 2000, of at least vinyl chloride and vinyl acetate as main comonomers.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: October 20, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoru Kawai, Masayasu Yamazaki, Kenichiro Sudo, Hitoshi Saito
  • Thermal transfer image-receiving sheet
    Patent number: 5774164
    Abstract: The present invention aims to provide a thermal transfer image-receiving sheet which does not suffer from any cockle problem, during printing, associated with a printer or a dye transfer film used. The thermal transfer image-receiving sheet comprises a substrate sheet and, provided on at least one surface thereof in the following order, an intermediate layer and a receptive layer, the intermediate layer containing either an acrylic polyol or cellulose acetate butyrate.Further, the present invention provides a thermal transfer image-receiving sheet which has a capability of preventing curling and causes no damage to an image-receiving surface even when image-receiving sheets put on top of each other or one another are used. This thermal transfer image-receiving sheet comprises a back surface layer provided on a substrate sheet in its surface where no image is to be formed, the back surface layer containing an acrylic polyol.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: June 30, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masayasu Yamazaki, Kenichiro Sudo, Satoru Kawai, Takeshi Nozaki
  • Heat transfer sheet
    Patent number: 5468714
    Abstract: A heat transfer sheet having improved releasability includes a substrate film and a dye layer system formed on the substrate film. The dye layer system is composed of a dye allowed to migrate and transfer thermally onto an image-receiving sheet and a binder, wherein the dye layer system comprises two layers, only the outer surface layer of which contains a slip agent and/or a releasant.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: November 21, 1995
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Katsuyuki Oshima, Masaki Kutsukake, Hideaki Sato, Kenichiro Sudo
  • Heat transfer image-receiving sheet
    Patent number: 5260255
    Abstract: A heat transfer image-receiving sheet including a substrate sheet, a dye-receiving layer formed on the surface side of the substrate sheet and a slip layer formed on the back side of the substrate sheet. That slip layer includes a graft copolymer in which at least one releasable segment selected from the group consisting of a polysiloxane segment, a carbon fluoride segment and a long-chain alkyl segment is grafted on its main chain.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: November 9, 1993
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Kenichiro Sudo, Hiroshi Eguchi
  • Heat transfer sheet
    Patent number: 5217942
    Abstract: A heat transfer sheet having improved releasability includes a substrate film and a dye layer system formed on the substrate film. The dye layer system is composed of a dye allowed to migrate and transfer thermally onto an image-receiving sheet and a binder, wherein the dye layer system comprises two layers, only the outer surface layer of which contains a slip agent and/or a releasant.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: June 8, 1993
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Katsuyuki Oshima, Masaki Kutsukake, Hideaki Sato, Kenichiro Sudo