Invention Grant
- Patent Title: Production method for separator sheet, production method for separator, separator sheet wound body, and separator sheet production device
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Application No.: US15517199Application Date: 2015-09-18
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Publication No.: US10168285B2Publication Date: 2019-01-01
- Inventor: Koji Kashu , Yusuke Kon , Tatsuya Sakamoto , Jian Wang
- Applicant: Sumitomo Chemical Company, Limited
- Applicant Address: JP Tokyo
- Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
- Current Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Panitch Schwarze Belisario & Nadel LLP
- Priority: JP2014-209414 20141010; WOPCT/JP2015/052749 20150130
- International Application: PCT/JP2015/076650 WO 20150918
- International Announcement: WO2016/056378 WO 20160414
- Main IPC: H01M2/14
- IPC: H01M2/14 ; G01N21/894 ; H01M10/0525

Abstract:
A separator producing method includes the steps of: winding up, around a core (81, 53), a separator (12a, 12b) having a defect (D) detected; and providing a defect code (DC2) including information on a position of the defect (D) in the longitudinal direction of the separator (12a, 12b) on (i) the outermost portion (86, 86b) of the separator (12a, 12b), wound around the core (81, 53), or (ii) the core (81, 53), around which the separator (12a, 12b) is wound.
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