Patents by Inventor Hiroyo Kikuchi

Hiroyo Kikuchi 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).

  • Stencil sheet roll and a method for preparing the same
    Patent number: 6025066
    Abstract: The present invention provides a stencil sheet roll formed by winding up a stencil sheet to form a roll, the sheet including a thermoplastic resin film and a porous support laminated thereto, wherein the compression elastic modulus of the sheet is not less than 32 kg/cm.sup.2. The invention also provides a stencil sheet roll formed by winding up a stencil sheet to form a roll, the sheet including a thermoplastic resin film and a porous support laminated thereto and having been subjected to calender treatment. Also disclosed is a method for manufacturing a stencil sheet roll comprising laminating a thermoplastic resin film to a porous support to form a stencil sheet, subjecting the stencil sheet to calender treatment, and winding up the calender-treated stencil sheet to form a roll.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: February 15, 2000
    Assignee: Riso Kagaku Corporation
    Inventors: Hideki Terasawa, Hiroyo Kikuchi, Takayuki Kurosaki, Mitsuru Ujiie