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:
Aug. 01, 1989
Filed:
Nov. 10, 1986
Applicant:
Inventors:
Yasuji Takashima, Ageo, JP;
Ikuo Koyama, Hasuda, JP;
Tooru Maki, Ageo, JP;
Katsu Nakamori, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
427-3 ; 424468 ;
Abstract
A method of preparing a sustained-release pharmaceutical preparation, which comprises applying a solution of a binder in water or an alcohol and a fine powder of a hydrophobic solid material which does not easily dissolve within the stomach and intestines to the surface of solid particles containing a drug while the solid particles are being tumbled, thereby to coat the solid particles with the binder and the hydrophobic solid material.