Patents by Inventor Toshikazu Fujisaki

Toshikazu Fujisaki 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).

  • Organophilic clay
    Patent number: 5376604
    Abstract: There are disclosed an organophilic clay which comprises a hydroxypolyoxyethylenealkyl ammonium ion represented by the following formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different, and each represent a (CH.sub.2 CH.sub.2 O).sub.n H group (where n is 2 or more, preferably 2 to 20), a hydrogen atom or an alkyl group having 1 to 30 carbon atoms, provided that one to three of R.sub.1 to R.sub.4 is/are a (CH.sub.2 CH.sub.2 O).sub.n H group(s) and at least three of R.sub.1 to R.sub.4 are (CH.sub.2 CH.sub.2 O).sub.n H group(s) and alkyl group(s),being introduced in interlayers of an expandable layer silicate, a method for preparing the same and a gellant for a high polar organic solvent.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: December 27, 1994
    Assignees: CO-OP Chemical Co., Ltd., Director General of The Agency of Industrial Science and Technology Shunso Ishihara
    Inventors: Takashi Iwasaki, Hiromichi Hayashi, Kazuo Torii, Takahiro Sekimoto, Toshikazu Fujisaki, Motoyuki Ikegami, Yutaro Ishida