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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.:

US 9931756 B1

PDFFull Text
Date of Patent:
Apr. 03, 2018

Filed:

May. 26, 2015

Method for producing separator and method for slitting

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Koichiro Watanabe, Niihama, JP;

Tatsuya Kataoka, Niihama, JP;

Kiyomu Nomura, Niihama, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Chuo-ku, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Karie O' Neill Apicella

Int. Cl.
CPC ...
H01M 2/14 (2006.01); H01M 2/16 (2006.01); H01M 10/0525 (2010.01); B26D 1/02 (2006.01); B26D 7/26 (2006.01); B26D 1/03 (2006.01); B26D 3/00 (2006.01); B26D 1/24 (2006.01); B26D 7/18 (2006.01); B65H 35/02 (2006.01); B65H 18/02 (2006.01);
U.S. Cl.
CPC ...
B26D 1/025 (2013.01); B26D 1/02 (2013.01); B26D 1/03 (2013.01); B26D 1/035 (2013.01); B26D 3/00 (2013.01); B26D 7/18 (2013.01); B26D 7/2614 (2013.01); B65H 18/021 (2013.01); B65H 35/02 (2013.01); H01M 2/145 (2013.01); H01M 2/1653 (2013.01); B65H 2301/4148 (2013.01); B65H 2301/41282 (2013.01); B65H 2801/72 (2013.01); H01M 2/1686 (2013.01); H01M 10/0525 (2013.01);
Abstract

Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet () being porous is conveyed, the separator original sheet () into a plurality of separators (), including the steps of: (a) conveying the separator original sheet () in a state where the separator original sheet () is in contact with a roller (); and (b) slitting the separator original sheet () at a portion where the separator original sheet () is in contact with the roller ().

Find Patent Forward Citations

Watanabe, Koichiro. (2018). Method for producing separator and method for slitting (U.S. Patent No. 9931756). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9931756

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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