Patents by Inventor Yohji Hayakawa

Yohji Hayakawa 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).

  • Thermoplastic polyester resin composition
    Patent number: 5633320
    Abstract: There is provided a thermoplastic polyester resin composition comprising a thermoplastic polyester resin (A) and a graft modified product (B) of a mixture of two different specific ethylene.1-butene random copolymers in a weight ratio of 95/5 to 50/50. A molded article having excellent impact resistance at low temperatures and mechanical strength can be obtained from this composition.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: May 27, 1997
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Yasuo Tanaka, Yohji Hayakawa