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:
Nov. 06, 2012
Filed:
Apr. 28, 2006
Kazunori Kataoka, Tokyo, JP;
Aya Koide, Yokohama, JP;
Kensuke Osada, Hasuda, JP;
Yuichi Yamasaki, Tokyo-To, JP;
Shigeto Fukushima, Narashino, JP;
Joon-sik Park, Tokyo-To, JP;
Kazunori Kataoka, Tokyo, JP;
Aya Koide, Yokohama, JP;
Kensuke Osada, Hasuda, JP;
Yuichi Yamasaki, Tokyo-To, JP;
Shigeto Fukushima, Narashino, JP;
Joon-Sik Park, Tokyo-To, JP;
The University of Tokyo, Tokyo-to, JP;
Abstract
The present invention discloses a vesicle which is excellent in structure stability and environmental responsiveness and also can be produced by a simple operation. More particularly, the present invention discloses a vesicle comprising a membrane formed of a first block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment, and a second block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment having an electric charge which is opposite to that of the chargeable segment of the first block copolymer.