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:
Dec. 04, 2018
Filed:
Jun. 17, 2015
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
In a cylindrical battery, a bottomed cylindrical battery case includes an opening end bent or curved toward a center axis of the battery case, and a constriction annularly formed around the center axis. A gasket is compressed by the opening end and the constriction, and a rim portion of the sealing member is grasped by the compressed gasket. The outer diameter of the battery case is 10 mm or less. A first corresponding line corresponds to the rim of the sealing member in a projected image of the sealing member on the virtual plane perpendicular to the center axis of the battery case, and a second corresponding line corresponds to a tip edge of the opening end in a projected image. In this case, deviation d of the second corresponding line from the first corresponding line toward the center axis satisfies −0.1 mm≤d≤+0.5 mm.