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. 05, 2016
Filed:
Sep. 12, 2012
Applicants:
Hiromu Yoshiura, Tokyo, JP;
Hiroshi Nagano, Tokyo, JP;
Inventors:
Hiromu Yoshiura, Tokyo, JP;
Hiroshi Nagano, Tokyo, JP;
Assignee:
KYOWA HAKKO BIO CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 227/42 (2006.01);
U.S. Cl.
CPC ...
C07C 227/42 (2013.01); C07C 227/42 (2013.01); C07C 229/08 (2013.01);
Abstract
L-valine granules are produced by adding L-glutamic acid to an aqueous solution containing L-valine so that the amount of L-glutamic acid is 0.5% by weight or more relative to the L-valine, dissolving the L-glutamic acid, then adjusting the pH of the aqueous solution to an acidic level and then crystallizing the L-valine.