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. 24, 2012
Filed:
May. 30, 2008
Takayuki Hirashige, Hitachi, JP;
Makoto Morishima, Hitachinaka, JP;
Mikio Kishimoto, Moriya, JP;
Yuko Sawaki, Takatsuki, JP;
Kazutaka Matsuo, Oyamazaki, JP;
Takayuki Hirashige, Hitachi, JP;
Makoto Morishima, Hitachinaka, JP;
Mikio Kishimoto, Moriya, JP;
Yuko Sawaki, Takatsuki, JP;
Kazutaka Matsuo, Oyamazaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A composite electrolyte membrane uses a metal-oxide hydrate which has a number of hydration water molecules of 2.7 or more and 10 or less and/or which is in the form of particles having a particle diameter of 1 nm or more and 10 nm or less. The composite electrolyte membrane exhibits its expected original performance, has both a high proton conductivity and a low methanol permeability, and provides a high-output membrane electrolyte assembly for a fuel cell.