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:
Oct. 24, 1989
Filed:
Jul. 23, 1987
Applicant:
Inventors:
Kimihiko Hori, Utsunomiya, JP;
Koichi Nakamura, Wakayama, JP;
Michio Kawai, Funabashi, JP;
Itsuro Motegi, Utsunomiya, JP;
Genji Imokawa, Utsunomiya, JP;
Naotake Takaishi, Utsunomiya, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D61K / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
424 62 ; 564170 ; 514617 ;
Abstract
A novel melanin inhibitor comprising as an active component a p-hydroxycinnamamide derivative of the following general formula (I) ##STR1## in which R.sub.1 represents a hydrogen atom or a 2-hydroxyethyl group, and R.sub.2 represents a hydroxymethyl group or a carboxyl group. The melanin inhibitor may take various forms such as a lotion, an emulsion, a cream, an ointment, a gel and the like, and it is locally applied onto affected parts such as spots and freckles on the skin, and a pigmental deposition after sunburn.