Patents by Inventor Yoshihiko Tamura

Yoshihiko Tamura 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).

  • Web take-up roll
    Patent number: 5804302
    Abstract: A web take-up roll including a cylindrical body and a web taken up around the cylindrical body. A terminal portion of the web is joined to the cylindrical body through a double-coated tacky tape including a paper substrate and adhesive layers formed on both sides of the substrate. The substrate is capable of ply separation by a force smaller than a force required to separate adhesive faces of the adhesive layers from either the terminal portion of the web or the cylindrical body.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: September 8, 1998
    Assignee: DAI Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Hitoshi Saito, Minoru Furuse, Mineo Yamauchi, Takumi Horii
  • Thermal transfer image-receiving sheet
    Patent number: 5646090
    Abstract: A thermal transfer image-receiving sheet is provided which is, in use, superimposed on a thermal transfer sheet and can form a printed, recorded image, having excellent storage stability, with a high density and a high resolution. The sheet includes a substrate and an intermediate layer and a receptive layer formed in that order on at least one surface of the substrate, wherein the intermediate layer contains a polyurethane resin having a specific glass transition temperature of 40.degree. C. or above.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: July 8, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Hitoshi Saito, Minoru Furuse, Mineo Yamauchi, Takumi Horii
  • Thermal transfer image-receiving sheet and process for producing the same
    Patent number: 5587352
    Abstract: A thermal transfer image-receiving sheet having a dye-receiving layer, which is excellent in reaction rate of a release agent, coating strength of a release layer and releasability from a thermal transfer sheet. The thermal transfer image-receiving sheet comprises a substrate sheet and a dye-receiving layer provided on at least one surface of the substrate sheet, wherein the dye-receiving layer contains a release agent mixture comprising an addition-polymerizable silicone and a hydrogen-modified silicone or wherein the dye-receiving layer has on its surface a release layer comprising an addition-polymerizable silicone and a hydrogen-modified silicone. The present invention relates also to a process for producing the above thermal transfer image-receiving sheets.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: December 24, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Mitsura Tsuchiya
  • Thermal transfer image-receiving sheet and process for producing the same
    Patent number: 5430002
    Abstract: A thermal transfer image-receiving sheet having a dye-receiving layer, which is excellent in reaction rate of a release agent, coating Strength of a release layer and releasability from a thermal transfer sheet. The thermal transfer image-receiving sheet comprises a substrate sheet and a dye-receiving layer provided on at least one surface of the substrate sheet, wherein the dye-receiving layer contains a release agent mixture comprising an addition-polymerizable silicone and a hydrogen-modified silicone or wherein the dye-receiving layer has on its surface a release layer comprising an addition-polymerizable silicone and a hydrogen-modified silicone. The present invention relates also to a process for producing the above thermal transfer image-receiving sheets.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: July 4, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Mitsuru Tsuchiya