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:
Dec. 25, 2012
Filed:
Nov. 09, 2006
Masahiro Imanishi, Susono, JP;
Haruyuki Nakanishi, Susono, JP;
Shigeaki Murata, Numazu, JP;
Hirokazu Ishimaru, Toyota, JP;
Yuichiro Hama, Nagoya, JP;
Yoshihisa Tamura, Susono, JP;
Masahiro Imanishi, Susono, JP;
Haruyuki Nakanishi, Susono, JP;
Shigeaki Murata, Numazu, JP;
Hirokazu Ishimaru, Toyota, JP;
Yuichiro Hama, Nagoya, JP;
Yoshihisa Tamura, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A tubular fuel cell includes an inner current collector, a membrane-electrode assembly, and seal portions provided at the axial end portions of the membrane-electrode assembly, respectively. The membrane-electrode assembly includes an inner catalyst layer provided on the inner current collector, an electrolyte membrane provided on the inner catalyst layer, and an outer catalyst layer provided on the electrolyte membrane. The axial length of the outer catalyst layer is shorter than the axial lengths of the electrolyte membrane and the outer catalyst layer. The axial end face of the outer catalyst layer and the axial end face of the inner catalyst layer are located on the opposite sides of the seal portion in each side of the tubular fuel cell.