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:
Dec. 16, 2014
Filed:
Apr. 24, 2007
Applicants:
Hisashi Akamatsu, Yokohama, JP;
Masashi Suzuki, Yokohama, JP;
Yuji Sakai, Yokohama, JP;
Inventors:
Assignees:
Kuraray Co., Ltd., Okayama, JP;
Pola Chemical Industries Inc., Shizuoka-Shi, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/56 (2006.01); A61K 31/19 (2006.01); A61K 31/20 (2006.01); A61Q 19/00 (2006.01); A61Q 19/08 (2006.01); A61K 8/34 (2006.01); A61K 8/63 (2006.01); A61K 9/00 (2006.01);
U.S. Cl.
CPC ...
A61Q 19/08 (2013.01); A61Q 19/00 (2013.01); A61K 31/56 (2013.01); A61K 8/347 (2013.01); A61K 9/0014 (2013.01); A61K 8/63 (2013.01);
Abstract
Disclosed is a skin external preparation containing a triterpenic acid typified by ursolic acid. For obtaining a skin external preparation having excellent storage stability by improving the dissolution stability of the triterpenic acid and the like, 4-alkylresorcinol such as 4-n-butylresorcinol is added into a skin external preparation containing a triterpenic acid and the like such as benzyl ursolate.