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. 30, 1989
Filed:
Aug. 11, 1987
Applicant:
Inventors:
Hideotoshi Wakamatsu, Shin-nanyo, JP;
Shigeaki Irino, Yamaguchi, JP;
Tsuneo Harada, Shin-nanyo, JP;
Akira Tokuda, Shin-nanyo, JP;
Kiyotaka Oyama, Hikari, JP;
Assignee:
Toyo Soda Manufacturing Company, Ltd., Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 41 ;
Abstract
A process for producing dry .alpha.-L-aspartyl-L-phenylalanine methyl ester, which comprises drying wet crystals of .alpha.-L-aspartyl-L-phenylalanine methyl ester by means of an air having an absolute humidity of at least 0.015 kg/kg or at most 0.01 kg/kg.