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:
Mar. 31, 1998
Filed:
Jan. 30, 1995
Applicant:
Inventors:
Kazuo Akima, Yokohama, JP;
Yuhei Iwata, Yokohama, JP;
Kayoko Matsuo, Hachiouji, JP;
Nobutoshi Watari, Kawasaki, JP;
Assignee:
Shiseido Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07H / ; C07H / ;
U.S. Cl.
CPC ...
514 59 ; 514 34 ; 536-64 ; 536 185 ; 536 551 ;
Abstract
A compound of hyaluronic acid and a medicinal ingredient produced by the convalent bonding (preferably amide bonding) of hyaluronic acid and the medicinal ingredient, and a process for preparing the same. The hyaluronic acid portion is completely decomposed by metabolism in the action region, whereby the medicinal ingredient is gradually and quantitatively released.