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:
Jan. 18, 2011
Filed:
Sep. 18, 2008
Applicants:
Mineo Washima, Tsuchiura, JP;
Takaaki Sasaoka, Tsuchiura, JP;
Masahiro Seido, Tsuchiura, JP;
Kazuhiko Nakagawa, Tsuchiura, JP;
Inventors:
Mineo Washima, Tsuchiura, JP;
Takaaki Sasaoka, Tsuchiura, JP;
Masahiro Seido, Tsuchiura, JP;
Kazuhiko Nakagawa, Tsuchiura, JP;
Assignee:
Hitachi Cable, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01M 2/18 (2006.01); B21C 1/00 (2006.01); C23F 1/00 (2006.01); B44C 1/00 (2006.01); C25D 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A metal composite for fuel cells according to the present invention, which includes: a core of a metal; cladded layers of a corrosion resistant metal covering both surfaces of the core; and a through-hole formed through the core and cladded layers. The through-hole has, on a hole wall of the core region of the through-hole, a concave portion which is recessed relative to hole walls of the cladded layer regions of the through-hole.