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:
Aug. 11, 2020
Filed:
Jun. 25, 2013
Satoshi Suzuki, Toyota, JP;
Toshiya Okada, Toyota, JP;
Satoshi Suzuki, Toyota, JP;
Toshiya Okada, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A battery case of a rectangular battery has a main body member that has the shape of a bottomed rectangular tube, and a lid member that has the shape of a rectangular plate. The main body member has a rectangular opening portion that is constituted of opening long side portions, opening short side portions, and opening R portions. The lid member seals the opening portion. The opening portion is configured such that each thickness of the opening R portions is larger than each thickness of the opening long side portions respectively. In addition, the opening portion and a lid peripheral edge portion are welded to each other in an airtight manner along an entire circumference thereof, by an energy beam that is radiated from outside the lid member in a thickness direction thereof.