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. 02, 2025
Filed:
Feb. 02, 2021
Daiwa Can Company, Chiyoda-ku, JP;
DAIWA CAN COMPANY, Chiyoda-ku, JP;
Abstract
A battery case includes a mounting surface formed into a desired shape to place a sealing plate stably thereon. The battery case includes: an open box-shaped case body holding components of a battery; and a sealing plate that is integrated with the case body to close an opening of the case body. A stepped portion on which the sealing plate is placed is formed on an inner wall surface of the case body. The stepped portion includes: a mounting surface on which the sealing plate is placed; an opposed surface opposed to a periphery of the sealing plate placed on the mounting surface; and a depressed corner depressed outwardly from the opposed surface between the mounting surface and the opposed surface.