Patents by Inventor Akira Tsubokura

Akira Tsubokura 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 production of (R) methylsuccinic acid from squalene using Candida lipolytica
    Patent number: 5217887
    Abstract: A process for the production of methylsuccinic acid represented by the formula (I): ##STR1## wherein the symbol * represents an asymmetric carbon atom, comprising the steps of culturing Candida in a medium containing squalene and producing methylsuccinic acid.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: June 8, 1993
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Akira Tsubokura, Hisashi Yoneda, Takashi Kiyota