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:
May. 06, 2008
Filed:
Sep. 13, 2005
Hiroshi Sakurai, Kanagawa, JP;
Kenji Kanamori, Yokohama, JP;
Shigeyuki Nakagawa, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A method of producing a plate stack preform, including preparing a reinforcement stack having first and second reinforcing plates, overlapping first and second plates respectively larger in size than the first and second reinforcing plates on the first and second reinforcing plates, respectively, inserting a weld-preventing conductive plate between side peripheries of the overlapped first and second reinforcing plates, after the inserting operation, simultaneously conducting joining the first plate with the side periphery of the first reinforcing plate and joining the second plate with the side periphery of the second reinforcing plate by lap resistance welding, and then joining side peripheries of the first and second plates together by continuous welding.