Patents by Inventor Shinji Ohnaka

Shinji Ohnaka 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 gluconic acid
    Patent number: 4843173
    Abstract: Gluconic acid is produced by oxidizing glucose with an oxygen-containing gas in an aqueous alkali solution in the presence of a palladium-bismuth/carbon catalyst which has adsorbed firstly bismuth and secondly palladium. The catalyst has an improved activity, selectivity and durability.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: June 27, 1989
    Assignees: Kawaken Fine Chemicals Co., Ltd., Kao Corporation
    Inventors: Hisashi Saito, Shinji Ohnaka, Shigeo Fukuda