Patents by Inventor Mikio Hayashida

Mikio Hayashida 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 (+)-homopilopic acid
    Patent number: 5182198
    Abstract: A process for preparing (+)-homopilopic acid and the salts thereof which comprises hydrolyzing a mixture of (+)-homopilopic acid ester of the general formula (I): ##STR1## wherein R.sub.1 denotes straight or branched C.sub.1 -C.sub.10 hydrocarbon, and (-)-homopilopic acid ester of the general formula (II): ##STR2## wherein R.sub.2 denotes straight or branched C.sub.1 -C.sub.10 hydrocarbon, in the presence of a microorganism belonging to the genus Arthrobacter, Aspergillus, Escherichia, Cunninghamella, Xanthomonas, Candida, Pseudomonas, Serratia, Cellulomonas, Nocardia, Bacillus, Brevibacterium, Flavobacterium, Mycobacterium, Rhizomucor, Rhodotorula or Rhodococcus, or a treated matter thereof.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: January 26, 1993
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Shoichi Kise, Mikio Hayashida, Aiichiro Ori, Junzou Hiratsuka, Hideaki Yamada