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:
Mar. 19, 2013
Filed:
Sep. 28, 2009
Hiroshi Hosokawa, Itano-gun, JP;
Haruhiko Yamamoto, Itano-gun, JP;
Masato Nishikawa, Kumagaya, JP;
Takahiro Nakamura, Kumagaya, JP;
Hitoshi Kihara, Hirakata, JP;
Hiroshi Hosokawa, Itano-gun, JP;
Haruhiko Yamamoto, Itano-gun, JP;
Masato Nishikawa, Kumagaya, JP;
Takahiro Nakamura, Kumagaya, JP;
Hitoshi Kihara, Hirakata, JP;
SANYO Electric Co., Ltd., Moriguchi-shi, JP;
Abstract
A laser welding device for manufacturing a prismatic batteryof the invention has a pair of jigsA,B for securing a prismatic battery outer can B, a gas supply section for supplying inert gas to welding points of a sealing cover Bfitted to the prismatic battery outer can B, and a laser unitfor irradiating laser beam. Each of the jigsA,B is provided with a slit-shaped blower outlet and the blower outlet is positioned below the welding points. The inert gas is supplied to the blower outlet from the gas supply section and is blown from the blower outlet to the welding points from below. The laser welding device for manufacturing a prismatic batterycan obtain a laser welding device that welds the sealing cover Bfitted to the prismatic battery outer can Bfast, preventing weld droops and allowing uniform welding.