Patents by Inventor Masanao Sugioka

Masanao Sugioka 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).

  • Laminated polyester film
    Patent number: 4041206
    Abstract: Laminated polyester film having a base layer of biaxially oriented polyethylene terephthalate or polybutylene terephthalate is laminated directly by heat sealing and without the use of any intervening adhesive with a crystalline butylene terephthalate or hexylene terephthalate copolyester blended with from about 10 to 40 weight % of a polyethylene terephthalate or polybutylene terephthalate, said copolyester containing about from 50 to about 80 mole % of terephthalic acid units based on the total acid component of the copolyester.
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: August 9, 1977
    Assignee: Toray Industries, Inc.
    Inventors: Kenji Tsunashima, Masanao Sugioka, Atsuhiko Soda, Hiroyuki Ikeuchi, Michihiko Tanaka