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:
Jul. 31, 1984
Filed:
Sep. 17, 1982
Applicant:
Inventors:
Masayoshi Samejima, Minoh, JP;
Goichi Hirata, Yawata, JP;
Yoshiyuki Koida, Katano, JP;
Yoshinori Kobayashi, Toyonaka, JP;
Akira Kida, Settsu, JP;
Assignee:
Tanabe Seiyaku Co., Ltd., Osaka, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 35 ; 42840224 ; 4272133 ; 424 19 ;
Abstract
Ethylcellulose microcapsules, wherein a polymer material which shows at least 1.2 times increase in weight by immersing it in water at 37.degree. C. is incorporated into the ethylcellulose coating walls and/or the core material thereof, are disclosed. Said ethylcellulose microcapsules show rapid release of the core material in digestive organs such as stomach.