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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.:

US 5316767 B1

PDFFull Text
Date of Patent:
May. 31, 1994

Filed:

Dec. 03, 1992

Whitening cosmetic composition

Applicant:
Inventors:

Takahiro Hara, Machida, JP;

Seigo Takasawa, Hatano, JP;

Yoshiharu Yokoo, Sagamihara, JP;

Tadayasu Furukawa, Chesterfield, MO (US);

Assignee:

Kyowa Hakko Kogyo Co., Ltd., , JP;

Attorney:

Pennie & Edmonds

Primary Examiner:

Thurman K Page

Assistant Examiner:

William E Benston, Jr

Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424401 ; 424 63 ;
Abstract

Disclosed is a whitening cosmetic composition comprising .gamma.-L-glutamyl-L-cystine, .gamma.-L-glutamyl-L-cysteine disulfide, oxidized glutathione or a derivative thereof, the amino group of which is acylated with an alkanoyl group or an aroyl group. The whitening cosmetic composition of the present invention have extremely good in water solubility and heat stability and stability during storage and show a melanin formation inhibitory activity against melanoma cells without any cytotoxicity.

Find Patent Forward Citations

Hara, Takahiro. (1994). Whitening cosmetic composition (U.S. Patent No. 5316767). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5316767

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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