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:
Feb. 14, 2012
Filed:
Feb. 28, 2008
Applicant:
Hiroshi Akita, Iruma-gun, JP;
Inventor:
Hiroshi Akita, Iruma-gun, JP;
Assignee:
Honda Motor Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/26 (2006.01); B32B 27/00 (2006.01); H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A composite porous membrane comprises a porous matrix and a polymer. The porous matrix contains a fiber woven fabric, a fiber nonwoven fabric, a porous metal material, or a porous inorganic material, and the polymer forms a three-dimensional network structure in the porous matrix. The composite porous membrane may be obtained by impregnating the porous matrix with a solution of the polymer, and by solidifying while stretching the polymer. Preferred examples of the porous matrix include glass fiber nonwoven fabrics, and preferred examples of the polymer include polybenzimidazoles.