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:
Feb. 14, 1995
Filed:
Aug. 31, 1993
Kazuo Noda, Takarazuka, JP;
Masao Kobayashi, Kyoto, JP;
Takashi Osawa, Toyonaka, JP;
Toru Maejima, Toyonaka, JP;
Tanabe Seiyaku Co., Ltd., Osaka, JP;
Abstract
A sustained release pharmaceutical preparation comprising a carrier, an effective ingredient layer containing a medicinal compound and a heat-meltable material as a binder which is formed around said carrier and a coating layer containing a non-heat-meltable dissolution-controlling agent and a heat-meltable material as a binder which is formed around said effective ingredient layer and the process for preparing the same. According to the present invention, the formation of the effective ingredient layer and the formation of the coating layer can be successively carried out in the same apparatus without using any solvents or drying step in short hours to give a sustained release pharmaceutical preparation which can release a medicinal compound at a suitable dissolution rate according to the physical property of the medicinal compound.