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:
May. 26, 2020
Filed:
Jan. 30, 2015
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/14 (2006.01); H01M 10/0525 (2010.01); H01M 2/16 (2006.01); G01N 21/892 (2006.01); G01N 21/84 (2006.01); G01N 21/894 (2006.01); B26D 1/03 (2006.01); B26D 7/14 (2006.01); B26D 7/26 (2006.01); B65H 16/10 (2006.01); B65H 18/08 (2006.01); B65H 26/02 (2006.01); G03B 1/04 (2006.01); G03B 1/42 (2006.01); G03B 1/56 (2006.01); G03B 17/30 (2006.01); G03B 17/42 (2006.01); G03B 21/32 (2006.01); G03B 17/00 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
H01M 2/145 (2013.01); B26D 1/035 (2013.01); B26D 7/14 (2013.01); B26D 7/2614 (2013.01); B65H 16/10 (2013.01); B65H 18/08 (2013.01); B65H 26/02 (2013.01); G01N 21/8422 (2013.01); G01N 21/892 (2013.01); G01N 21/894 (2013.01); G03B 1/04 (2013.01); G03B 1/42 (2013.01); G03B 1/56 (2013.01); G03B 17/30 (2013.01); G03B 17/425 (2013.01); G03B 21/328 (2013.01); H01M 2/1653 (2013.01); H01M 2/1686 (2013.01); H01M 10/0525 (2013.01); B65H 2557/62 (2013.01); G03B 17/00 (2013.01); G03B 21/00 (2013.01); G03B 2217/243 (2013.01); H01M 2/166 (2013.01);
Abstract
To easily specify the position of a defect in a separator, a method for producing a separator original sheet () includes the steps of: forming a separator original sheet () including a separator original sheet () and a heat-resistant layer coated on the separator original sheet (); detecting a defect (D) in the separator original sheet (); and recording information including information on a position of the defect (D) which position is a position in the width direction of the separator original sheet ().