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:
May. 01, 1990
Filed:
Mar. 11, 1988
Applicant:
Inventors:
Satoji Takahashi, Mieken, JP;
Masao Nakamura, Kawasaki, JP;
Assignee:
Ajinomoto Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562554 ;
Abstract
A method for purifying aspartic acid comprising suspending aspartic acid crystals containing chloride ion impurities in an aqueous solution at a temperature of 50.degree. C. or higher, followed by separating the purified aspartic acid crystals, is disclosed.