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. 07, 2010
Filed:
Sep. 22, 2005
Harumi Kamachi, Chiba, JP;
Tsuyoshi Katoh, Chiba, JP;
Hirobumi Aoki, Chiba, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
Hydroxycitric acid derivatives and salts thereof are provided which are useful as active ingredients of skin external preparations and cosmetics. Also provided are processes for production of the hydroxycitric acid derivatives, and skin external preparations and cosmetics containing the hydroxycitric acid derivatives. Specific hydroxycitric acid derivatives or salts thereof are produced wherein at least one of the hydroxyl groups of hydroxycitric acid or least one of the hydroxyl groups and at least one carboxyl group of hydroxycitric acid are modified to linkage moieties breakable by biological enzyme reaction. The hydroxycitric acid derivatives or salts thereof are added in skin external preparations and cosmetics.