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:
Jul. 05, 2016
Filed:
Aug. 12, 2010
Yoichi Suzuki, Tokyo, JP;
Tomoya Nomura, Tokyo, JP;
Takuya Kosaka, Tokyo, JP;
Shinichi Nishimura, Tokyo, JP;
Yoichi Suzuki, Tokyo, JP;
Tomoya Nomura, Tokyo, JP;
Takuya Kosaka, Tokyo, JP;
Shinichi Nishimura, Tokyo, JP;
W. L. Gore & Associates, Co, Ltd., Tokyo, JP;
Abstract
The present invention provides a method for manufacturing a membrane electrode assembly which improves the reliability of seal, mechanical strength, and handling ability of a solid polymer type fuel cell. The manufacturing method includes: preparing a membrane electrode assembly which differs in the size of the gas diffusion layers at the anode side and the cathode side; and providing a resin frame at the outer peripheral edge of the membrane electrode assembly by molding; wherein the molding includes the use of a mold that keeps penetration of the resin frame material into the gas diffusion layers and/or electrode layers to a minimum and prevents warping of the outer peripheral edges.