Patents by Inventor Kohokichi Noguchi

Kohokichi Noguchi 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).

  • Styrene resin composition
    Patent number: 5155161
    Abstract: A styrene resin composition comprising [I] a polymer component which is a mixture of (A) 1 to 50% by weight of a resinous styrene polymer in which a functional group represented by formula>C.dbd.N.sup.+ <is bound to a polymer chain either directly or via the other atomic group and (B) 99 to 50% by weight of the other styrene resin than the above, and [II] a particulate or granular additive [II].
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: October 13, 1992
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Hidenori Onishi, Kohokichi Noguchi, Hiroyuki Watanabe