Patents by Inventor Tutomu Kamiyama

Tutomu Kamiyama 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).

  • Process for preparing styrene oxide
    Patent number: 5041569
    Abstract: Styrene oxide is prepared by reacting styrene and hydrogen peroxide in a heterogeneous system in the presence of a bis(tri-n-alkyltinoxy)molybdic acid and an amine represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each independently represent H, CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7, C.sub.4 H.sub.9, or HOCH.sub.2 CH.sub.2.
    Type: Grant
    Filed: January 17, 1990
    Date of Patent: August 20, 1991
    Assignee: Tokai Denka Kogyo Kabushiki Kaisha
    Inventors: Saburo Enomoto, Masami Inoue, Osami Ohura, Tutomu Kamiyama, Hirohisa Nitoh