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:
Feb. 27, 2018
Filed:
Dec. 14, 2016
Gs Yuasa International Ltd., Kyoto-shi, JP;
Masakazu Tsutsumi, Kyoto, JP;
Hidenori Shishido, Kyoto, JP;
GS YUASA INTERNATIONAL LTD., Kyoto-Shi, Kyoto, JP;
Abstract
An electric storage device includes an electrode assembly including a positive electrode plate and a negative electrode plate that are insulated from each other, and a case that houses the electrode assembly. The case includes a case body including an opening, and a cover plate that is placed on an opening edge of the opening of the case body so as to cover the opening. The case body includes a step portion at the opening edge. The cover plate includes a projection that is inserted into the opening of the case body. At least a portion of the projection opposes the step portion within the case body. A seam between the cover plate and the opening edge of the case body is laser welded in at least the step portion.