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. 24, 2012
Filed:
Dec. 27, 2007
Applicants:
Naoaki Yoshida, Tokyo-To, JP;
Chihiro Mori, Yotsukaido, JP;
Tsutomu Sasaki, Sosa, JP;
Inventors:
Assignees:
Kenko Corporation, Tokyo-To, JP;
Tokiwa Phytochemical Co., Ltd., Chiba-Ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 61/28 (2006.01); A61K 31/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
According to the present invention, there is provided a process for preparing corosolic acid comprising the steps of (1) dissolving crude extract of Japanese loquat leaves in alkali and aqueous alcohol and (2) applying the solution to a nonpolar adsorption resin to obtain corosolic acid.