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:
Jun. 11, 2013
Filed:
Jun. 18, 2009
Kazuhiro Yamauchi, Suntou-gun, JP;
Kenji Yamada, Yokohama, JP;
Mamiko Kumagai, Yokohama, JP;
Kyoko Kumagai, Mishima, JP;
Norishige Kakegawa, Chofu, JP;
Kazuhiro Yamauchi, Suntou-gun, JP;
Kenji Yamada, Yokohama, JP;
Mamiko Kumagai, Yokohama, JP;
Kyoko Kumagai, Mishima, JP;
Norishige Kakegawa, Chofu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ion-conductive polymer composite membrane is provided which has both high gas barrier properties and high protonic conductivity. The ion-conductive polymer composite membrane includes an ion-conductive polymer and ion-conductive materials. The ion-conductive materials each include i) an inorganic layered structure including a plurality of layers formed of an inorganic compound and ii) a sulfobetaine-type or hydroxysulfobetaine-type ampholytic surfactant. The ampholytic surfactant is present between the layers formed of an inorganic compound. The present invention further provides a membrane-electrode assembly and a fuel cell which use the ion-conductive polymer composite membrane, and a process for producing the ion-conductive polymer composite membrane.