Patents by Inventor Mariko Horie

Mariko Horie 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 stamp assembly and method for preparation thereof
    Patent number: 5642665
    Abstract: A stencil stamp assembly is formed of: a stencil sheet having a perforation area having an image perforated therein, at least two plate members having lower end portions secured to the stencil sheet at at least two positions with the perforation area sandwiched therebetween and upper end portions connected with each other, the plate members serving as operating portions during printing, an ink holding portion for holding ink on the upper surface of the perforation area of said stencil sheet, and a center member having a plurality of surfaces in contact with at least a part of the inner surface of the plate members and the upper surface of said ink holding portion. The center member is provided in a space between the inner surface of the plate members and the upper surface of the ink holding portion.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: July 1, 1997
    Assignee: Riso Kagaku Corporation
    Inventor: Mariko Horie