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:
Feb. 11, 2014
Filed:
Aug. 31, 2006
Koji Ueda, Saitama, JP;
Koji Ueda, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A fuel-cell stack includes a laminate having a plurality of unit cells laminated and accommodated in a box-like casing. The casing includes pairs of side plates arranged at the sides of the laminate and formed of a metal plate having a first thickness, and a plurality of hinge plates spot-welded to both ends of the side plates and formed of a metal plate having a second thickness greater than the first thickness. Of spot-welding electrodes, the spot-welding electrode has an end face formed with a concave. With the spot-welding electrode being arranged on the side of the hinge plate and with the hinge plate and the side plate being in press contact by the spot-welding electrodes, energization is carried out for welding.