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:
Jul. 30, 2013
Filed:
Jan. 13, 2011
Masatoshi Hano, Osaka, JP;
Yasuhiko Syoji, Osaka, JP;
Masatoshi Hano, Osaka, JP;
Yasuhiko Syoji, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An alkaline battery including a positive electrode of a hollow cylindrical shape disposed in contact with an inner surface of a bottomed cylindrical battery case, a gelled negative electrode, a separator, and an alkaline electrolyte. The separator includes a cylindrical separator disposed in contact with the inner side surface of the positive electrode, and a bottom separator covering an opening of the cylindrical separator in the bottom side of the battery case. The bottom of the battery case includes: an annular base portion for supporting the positive electrode; an annular intermediate portion provided inwardly of the base portion, for supporting the bottom separator; and a terminal portion protruding outwardly from the intermediate portion. The intermediate portion has an inclined surface on the inner bottom surface of the battery case, the inclined surface being inclined downwardly from the base portion toward the terminal portion.