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. 31, 2011
Filed:
Dec. 03, 2008
Applicant:
Katsuhiko Mori, Osaka, JP;
Inventor:
Katsuhiko Mori, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/02 (2006.01); B21B 45/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The method for producing a battery can according to this invention includes the steps of: (1) producing a battery can having a cylindrical side wall, a bottom, and an opening from a steel plate by a can-making process; (2) washing the battery can with tap water or industrial water; (3) washing the battery can with water having a conductivity of 80 μS/cm or less after the step (2); and (4) drying the battery can after the step (3).