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:
Sep. 15, 2009
Filed:
Jun. 30, 2005
Akihiko Tanioka, Ohota-ku, JP;
Akihiko Matsumura, Shibuya-ku, JP;
Takehiko Matsumura, Shibuya-ku, JP;
Mizuo Nakayama, Shibuya-ku, JP;
Hidero Akiyama, Shibuya-ku, JP;
Akihiko Tanioka, Ohota-ku, JP;
Akihiko Matsumura, Shibuya-ku, JP;
Takehiko Matsumura, Shibuya-ku, JP;
Mizuo Nakayama, Shibuya-ku, JP;
Hidero Akiyama, Shibuya-ku, JP;
TTI Ellebeau, Inc., Tokyo, JP;
Abstract
An iontophoresis device for administering drug ions via the first ion-exchange membrane, comprising a first semi-permeable film having a number of pores passing through the film from a front surface to a back surface, a first ion-exchange membrane formed of ion-exchange resin filling the pores of the first semi-permeable film and selective ions of a first polarity, and a working electrode structure having a drug holding part placed on a back surface of the first ion-exchange membrane and holding a drug solution containing drug ions charged in the first polarity, wherein a layer of a water-soluble polymer compound is chemically bonded on the surface of the first semi-permeable film.