Patents by Inventor Sunao Saitoh

Sunao Saitoh 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).

  • Polymer composition
    Patent number: 5137977
    Abstract: A polymer composition comprising a polymer or a highly saturated polymer, an organic peroxide and a maleimide derivative, said polymer being produced by radical polymerization using a sulfur-free compound as an emulsifier and a terpene type compound as a molecular weight modifier and said highly saturated polymer being obtained by hydrogenating said polymer.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: August 11, 1992
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Sunao Saitoh, Noboru Watanabe