Patents by Inventor Tadao Hamada

Tadao Hamada 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).

  • Reaction injection molding method
    Patent number: 5008065
    Abstract: An organic fluorine compound as a mold release agent wherein at least one norbornene compound is polymerized by ring opening in a mold coated with said release agent. The organic fluorine compound release agent can be used in combination with a conventional mold release agent.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: April 16, 1991
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Kin-ichi Okumura, Koji Chono, Hiroshi Ozeki, Tadao Hamada