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:
Nov. 14, 1995
Filed:
May. 26, 1994
Applicant:
Inventors:
Michio Kosaki, Tokyo, JP;
Kimitoshi Kawai, Ibo, JP;
Assignee:
Daicel Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ;
U.S. Cl.
CPC ...
435139 ; 4352521 ; 435170 ;
Abstract
D-lactic acid is continuously produced by conducting fermentation in a D-lactic acid-producing medium by using as a seed culture a part of a broth obtained in a previous fermentation step of D-lactic acid and elevating a concentration of said growth-promoter to such an effect that a optical purity of the D-lactic acid may be prevented from decreasing. Instead, air may be used.