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:
May. 29, 2001
Filed:
Feb. 22, 1999
Applicant:
Inventors:
Yusuke Suzuki, Osaka, JP;
Toshiro Fujii, Osaka, JP;
Hiroshi Tanaka, Osaka, JP;
Satoshi Sakuma, Osaka, JP;
Hitoshi Kadota, Osaka, JP;
Assignee:
Shionogi & Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/16 ; A61K 9/32 ; A61K 9/22 ; A61K 9/24 ;
U.S. Cl.
CPC ...
A61K 9/16 ; A61K 9/32 ; A61K 9/22 ; A61K 9/24 ;
Abstract
A sustained-release preparation which can release a highly water-soluble medicinally active ingredient over a long time and a process for the production thereof are provided. The preparation has a sustained-releasing layer formed by heating and melting a layer composed of both an aqueous ethylcellulose latex containing a plasticizer and a wax to miscibilize them.