The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 1990
Filed:
Sep. 21, 1988
Applicant:
Inventors:
Haruyo Sato, Aichi, JP;
Shinzo Imamura, Aichi, JP;
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07P / ; C12P / ; C12P / ; C12R / ;
U.S. Cl.
CPC ...
435145 ; 435250 ; 435822 ; 435852 ; 435877 ;
Abstract
It is possible to efficiently obtain D-(31)-tartaric acid in high yield and to supply DL-tartaric acid of high concentration to the culture medium by cultivating a microorganism which belongs to the genus Pseudomonas, Cryptococcus, Tricosporon or Klebsiella and has an ability to assimilate L-(+)-tartaric acid and does not assimilate substantially D-(-)-tartaric acid in a culture medium containing DL-tartaric acid.