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:
May. 13, 2008
Filed:
Mar. 24, 2004
Michio Ono, Minami-ashigara, JP;
Koji Wariishi, Minami-ashigara, JP;
Kimiatsu Nomura, Minami-ashigara, JP;
Wataru Kikuchi, Minami-ashigara, JP;
Michio Ono, Minami-ashigara, JP;
Koji Wariishi, Minami-ashigara, JP;
Kimiatsu Nomura, Minami-ashigara, JP;
Wataru Kikuchi, Minami-ashigara, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
Provided are a proton-exchange membrane of which the ionic conductivity is high and the methanol crossover is low, and a fuel cell of high power that comprises the proton-exchange membrane. The proton-exchange membrane has a structure of mesogen-containing organic molecular chains and a proton-donating group-containing group covalent-bonding to a silicon-oxygen three-dimensional crosslinked matrix, in which at least a part of the organic molecular chains are oriented to form an aggregate thereof; and the fuel cell comprises the membrane.