Patents by Inventor Suminori Tatsukawa

Suminori Tatsukawa 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).

  • Closure material for sealing glass containers
    Patent number: 4686133
    Abstract: A closure material for sealing glass containers comprising a metal foil and a thermally adhesive composition layer formed on one surface of the metal foil and comprising a carboxyl-modified saponified product of ethylene-vinyl acetate copolymer and up to 30 parts by weight of an inorganic compound per 100 parts by weight of the carboxyl-modified saponified product, the carboxyl-modified saponified product being prepared by graft-polymerizing a carboxylic acid group-containing unsaturated compound with a saponified product of ethylene-vinyl acetate copolymer containing 50 to 97 mole % of ethylene.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: August 11, 1987
    Assignees: Takeda Chemical Industries, Ltd., Showa Aluminum Corporation
    Inventors: Masamitsu Nakabayashi, Hideo Kawai, Suminori Tatsukawa, Masayuki Kaji