Patents by Inventor Koichi Ishitani

Koichi Ishitani 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).

  • Silicone copolymer emulsion
    Patent number: 5462988
    Abstract: A silicone copolymer emulsion comprising:(A) 10 to 90 wt % of a silicone component containing(i) 5 to 60 wt % of compound (a) and(ii) 95 to 40 wt % of a crosslinkable silicone;(B) 90 to 10 wt % of a copolymerizable monomer; and(C) a curing catalyst,said compound (a) being expressed by the following formula (1): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 denote alkyl, phenyl, (meth)acryloxyalkyl and the like.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: October 31, 1995
    Assignee: Showa Highpolymer Co., Ltd.
    Inventors: Yukio Doi, Wei-Zhong Zhang, Koichi Ishitani, Masayoshi Kinugasa