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:
Apr. 17, 2012
Filed:
Feb. 19, 2003
Applicants:
Yasunori Takada, Tosu, JP;
Koji Tanaka, Tosu, JP;
Yasuhiro Ikeura, Tosu, JP;
Inventors:
Assignee:
Hisamitsu Pharmaceutical Co., Inc., Tosu-shi, Saga, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/192 (2006.01); A61K 9/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transdermal patch comprising a backingand an adhesive layerlaminated on the backing, wherein the adhesive layercomprises a rosin-based resin and petroleum resin as a tackifier, the total compounding amount of the rosin-based resin and the petroleum resin is in a range of 15% by mass to 50% by mass, and compounding amount of the petroleum resin is ⅓ times by mass to 4 times by mass as that of the rosin-based resin.