Patents by Inventor Toru Masuko

Toru Masuko 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).

  • Polycarbonate resin composition
    Patent number: 5844033
    Abstract: A polycarbonate resin composition comprising substantially:94.0-99.5% by weight of a polycarbonate resin, and0.5-6.0% by weight of zeolite having tannic acid adsorbed thereon.In this polycarbonate resin composition, the molecular weight reduction of polycarbonate resin is suppressed.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: December 1, 1998
    Assignee: Tohoku Munekata Co., Ltd.
    Inventors: Susumu Nikkeshi, Toru Masuko, Akiko Tominaga