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:
Oct. 14, 2014
Filed:
May. 22, 2007
Takashi Asahina, Toyohashi, JP;
Shinji Hamada, Toyohashi, JP;
Toyohiko Eto, Toyota, JP;
Masanori Ito, Toyohashi, JP;
Takashi Asahina, Toyohashi, JP;
Shinji Hamada, Toyohashi, JP;
Toyohiko Eto, Toyota, JP;
Masanori Ito, Toyohashi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
An alkaline storage battery has an electrode terminal that is inserted in a penetration hole, and disposed astride an inside of a battery case and an outside of the battery case, and fastened to a hole periphery portion via a packing. The negative terminal has a seal portion that, together with the hole periphery portion, clamps and compresses the packing to liquid-tightly seal the penetration hole. The seal portion includes an annular seal surface located facing the hole periphery portion, and a seal periphery surface located around the seal surface. The seal surface is protruded from the seal periphery surface toward the hole periphery portion. The surface roughness Ry of the seal surface of the negative terminal is 15 μm or less.