Patents by Inventor Setuko Ojima

Setuko Ojima 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 producing 2-keto-L-gulonic acid
    Patent number: 5312741
    Abstract: The present invention relates to a process for producing 2-keto-L-gulonic acid by fermentative conversion of D-sorbitol in high yield. 2-Keto-L-gulonic acid is an important intermediate for the production of L-ascorbic acid into which it can be converted.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: May 17, 1994
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Tatsuo Hoshino, Setuko Ojima, Teruhide Sugisawa