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. 18, 1997
Filed:
Jun. 10, 1996
Applicant:
Inventors:
Kazuhiro Hasegawa, Kawasaki, JP;
Tetsuya Kaneko, Kawasaki, JP;
Noriko Takahashi, Kawasaki, JP;
Chiaki Sano, Kawasaki, JP;
Assignee:
Ajinomoto Co., Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562554 ; 562 85 ;
Abstract
A process is provided for obtaining high-purity valine in high yield by a simple method using an inexpensive precipitant of p-isopropylbenzene sulfonic acid or a water-soluble salt thereof.