Patents by Inventor Masaki Bando

Masaki Bando 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 stencil master sheet and adhesive therefor
    Patent number: 4961377
    Abstract: A thermal stencil master sheet for stencil printing has a thermoplastic synthetic resin film which is perforatable with heat and a porous substrate, which is substantially unchanged by the heat. The film is bonded to the substrate with a urethane adhesive, preferably composed mainly of a specific urethane prepolymer obtained by reacting a polyether diol with a diisocyanate so as to give an equivalent ratio of NCO/OH of at least 1.1.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: October 9, 1990
    Assignee: Riso Kagaku Corporation
    Inventors: Masaki Bando, Kenichi Sukegawa, Hiromiti Yamada, Mitsutsugu Masuda, Yukio Okada, Mitsuyoshi Yukawa, Nobuyuki Sato