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. 22, 1990
Filed:
Apr. 03, 1989
Applicant:
Inventors:
Masaaki Matsuda, Osaka, JP;
Yuji Yoshida, Osaka, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210656 ; 210672 ; 530413 ;
Abstract
Amino acid each is separated and refined by bringing aqueous solution containing various amino acids into contact with chelate resins having aminocarboxylic acid groups or aminophosphonic acid groups and having metal ions coordinated, until amino acids are absorbed on the resins, and then eluting the acids.