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:
Apr. 20, 2021
Filed:
Jan. 06, 2016
O.m.c. Co., Ltd., Takatsuki, JP;
Shinji Watanabe, Takatsuki, JP;
O.M.C. CO., LTD., Osaka, JP;
Abstract
Provided is an epoch-making method in which an original sheet is continuously fed, and a rectangular electrode sheet with a tab can be cut out from the original sheet with a normal laser beam during the continuous feeding. The original sheetis continuously moved. An ear portionis separated from an electrode portionwith a first laser beam Lin an ear portion separating region provided in the middle of movement of the original sheet, is taken up at a position where the ear portionis separated, in a direction separated from a running direction of the electrode portion, and the laser beam Lis moved in the ear portion separating step to cut out a tabconnected to the electrode portion, from the ear portion. Thereafter, in the next cutting region, while tension T in the running direction of the electrode portionis applied to a cut portion of the electrode portion, the electrode portionis cut at a predetermined interval with a second laser beam Lto continuously form an electrode sheetwith the tab. Thereafter, the electrode sheetwith the taband the separated ear portionare collected.