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:
Oct. 13, 2015
Filed:
Sep. 13, 2012
Saori Okada, Tokyo, JP;
Haruna Kurata, Tokyo, JP;
Hiroyuki Morioka, Tokyo, JP;
Kenichiro Oota, Kanagawa, JP;
Saori Okada, Tokyo, JP;
Haruna Kurata, Tokyo, JP;
Hiroyuki Morioka, Tokyo, JP;
Kenichiro Oota, Kanagawa, JP;
TOPPAN PRINTING CO., LTD, , JP;
Abstract
According to the present invention, it is possible to improve the use ratio of active sites in a catalyst having oxygen reduction activity so as to provide a cathode catalyst layer and MEA for a fuel cell with high a level of power generation performance. The present invention includes a process of introducing a functional group into a surface of the catalystwhich has oxygen reduction activity and a process of blending the catalystwith the functional group on the surface together with an electron conductive material and a proton conductive polymer electrolyte to prepare a catalyst ink for forming the cathode catalyst layer for the fuel cell.