Patents by Inventor Hidetaka Miyaji

Hidetaka Miyaji 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 elastomer and composition comprising the same
    Patent number: 6242560
    Abstract: A thermoplastic polyester elastomer having a crystalline melting point which satisfies the relationship: y≧200+0.5x, a Vicat softening point which satisfies the relationship: z≧50+1.5x, and a tensile elongation of at least 100% which is measured according to JIS K 6251, in which x is a weight percentage of polymeric units which substantially constitute hard segments of the elastomer; y is a crystalline melting point (°C.); and z is a Vicat softening point (°C.), which elastomer has a high melting point, while it has good heat resistance, water resistance and weather resistance.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: June 5, 2001
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Shoichi Gyobu, Koji Kobayashi, Hiroaki Taguchi, Yoshio Araki, Hidetaka Miyaji, Seiji Nakayama