Patents by Inventor Yoshihisa Tajima

Yoshihisa Tajima 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).

  • Polybutylene terephthalate resin composition
    Patent number: 4713408
    Abstract: A polybutylene terephthalate resin composition comprises polybutylene terephthalate, a sulfonate anionic antistatic agent and an oxidized polyolefin wax. It is improved in the antistatic property and useful as a part for an electric instrument.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: December 15, 1987
    Assignee: Polyplastics Co., Ltd.
    Inventors: Katsuhiko Takahashi, Yoshihisa Tajima