Patents by Inventor Akiko Fujishima

Akiko Fujishima 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).

  • Ketone containing terpolymer
    Patent number: 4849496
    Abstract: A terpolymer whose backbone chain is composed of the following building units is described: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each is H or an alkyl group selected from among CH.sub.3 and C.sub.2 H.sub.5.Further, a polyelectrolyte made either of a terpolymer or of a derivative thereof is also described.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: July 18, 1989
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Yoshihisa Watanabe, Makoto Takeda, Hisao Kinoshita, Akiko Fujishima