Patents by Inventor Koretoshi Uemura

Koretoshi Uemura 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).

  • Plasticizer composition
    Patent number: 4291127
    Abstract: A plasticizer composition comprises phthalates of C.sub.9 alcohols obtained by an oxo reaction and a hydrogenation of C.sub.8 olefins which have 3 to 20 wt. % especially 7 to 20 wt. % of olefins having one isobutane skeleton and less than 3 wt. % of olefins having quaternary carbon and more than 90 wt. % of a total of n-octenes, monomethylheptenes and dimethylhexenes and more than 0.8 especially 1.1 to 2.0 of a ratio of a total of n-octenes and monomethylheptenes to dimethylhexenes.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: September 22, 1981
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Hiroshi Akabayashi, Eiji Ohyama, Susumu Shoji, Masami Adachi, Koretoshi Uemura, Yoshihisa Ogawa