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:
Jan. 22, 1985
Filed:
Apr. 07, 1983
Applicant:
Inventors:
Kazumi Araki, Machida, JP;
Tetsuro Kuga, Komae, JP;
Assignee:
Kyowa Hakko Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12N / ; C12R / ; C12R / ;
U.S. Cl.
CPC ...
435107 ; 4351721 ; 435840 ; 435843 ; 435253 ;
Abstract
L-histidine is produced by culturing, in a nutrient medium, an L-histidine producing mutant microorganism belonging to the genus Corynebacterium or Brevibacterium. The mutant is resistant to growth inhibition by an RNA polymerase inhibitor or requires adenine. L-histidine is accumulated in the culture liquor and is recovered therefrom.