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:
Nov. 10, 2015
Filed:
May. 02, 2012
Naoko Ito, Tokyo, JP;
Naoko Ito, Tokyo, JP;
SHOWA DENKO K.K., Tokyo, JP;
Abstract
A skin external preparation containing an ascorbic acid-2-phosphate derivative is characterized in that only a sodium ascorbic acid-2-phosphate-6-palmitate is formulated as the ascorbic acid-2-phosphate derivative, and the skin preparation further includes at least one betaine-type amphoteric surfactant selected from the group consisting of compounds represented by the following general formula (1) or (2) (wherein Rrepresents a linear or branched alkyl group of 6 to 30 carbon atoms, and Rrepresents a linear or branched alkyl group of 8 to 30 carbon atoms).R—N(CH)—CHCOO  (1)R—CONH—CH—CH—CH—N(CH)—CHCOO  (2)