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. 25, 1997
Filed:
Aug. 27, 1993
Applicant:
Inventors:
Masaru Suetsugu, Yokohama, JP;
Manami Ohnuma, Yokohama, JP;
Yoshihiro Morikawa, Yokohama, JP;
Yuki Yamase, Yokohama, JP;
Naoe Akiyama, Yokohama, JP;
Kenji Kitamura, Yokohama, JP;
Assignee:
Shiseido Co., Ltd, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 59 ; 424 60 ; 424 62 ; 424 63 ; 514844 ;
Abstract
An external preparation for skin including one or more than two types of tranexamic acid derivatives represented by the following general formula (A). GENERAL FORMULA (A) ##STR1## (In the formula (A), R.sub.1, R.sub.2 and R.sub.3 represents hydrogen atoms or substituents and at least one of these is the substituent.) The external preparation for skin including the derivatives have excellent depigmentation effect as well as skin care effect.