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:
Nov. 12, 2019
Filed:
Mar. 08, 2017
Honda Motor Co., Ltd., Tokyo, JP;
Eri Terada, Wako, JP;
Kazuo Nunokawa, Wako, JP;
Satoru Terada, Wako, JP;
Masaki Tani, Wako, JP;
Shintaro Tanaka, Wako, JP;
Seiji Sugiura, Wako, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
A resin-framed stepped membrane electrode assembly for a fuel cell, includes a stepped membrane electrode assembly and a resin frame member. The resin frame member surrounds a membrane outer periphery end of a solid polymer electrolyte membrane and includes an inner protruding portion protruding from the membrane outer periphery end toward a second electrode and is joined to the stepped membrane electrode assembly with an adhesive. The inner protruding portion includes a bank portion, a groove portion, and a ledge portion. The roughness of the bank surface is smaller than a roughness of the groove surface.