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:
Apr. 30, 2002
Filed:
Aug. 27, 1999
Applicant:
Inventors:
Hiroyuki Inoue, Mihara-gun, JP;
Masayuki Terasaka, Tsuna-gun, JP;
Nobukazu Yamanishi, Sumoto, JP;
Shinichirou Matsue, Sumoto, JP;
Hiroshi Hosokawa, Sumoto, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/02 ; H01M 2/20 ; H01M 2/22 ;
U.S. Cl.
CPC ...
H01M 2/02 ; H01M 2/20 ; H01M 2/22 ;
Abstract
The battery has an electrode assembly inserted into a cylindrical external case. A lead plate connected to the electrode assembly is weld attached to the inner surface of the external case by an energy beam applied from outside the external case. The external case has a projection jutting from its inner surface. The energy beam is applied to the projection from outside the external case and weld attaches the lead plate to the inner surface of the projection.