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.

Date of Patent:
Feb. 10, 2026

Filed:

Apr. 13, 2021
Applicant:

Asahi Kasei Battery Separator Corporation, Tokyo, JP;

Inventors:

Xun Zhang, Tokyo, JP;

Hayato Matsuyama, Tokyo, JP;

Tetsushi Nakao, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/403 (2021.01); H01M 10/0525 (2010.01); H01M 50/417 (2021.01);
U.S. Cl.
CPC ...
H01M 50/403 (2021.01); H01M 10/0525 (2013.01); H01M 50/417 (2021.01);
Abstract

Provided is a method for producing a separator for a power storage device, the method including: a step for extruding powdered polyethylene, pelletized polypropylene, and a plasticizer into a sheet form using an extruder to form a molded body; and a step for making the molded body porous by a wet method.


Find Patent Forward Citations

Zhang, Xun. (2026). Method for producing separator for power storage device (U.S. Patent No. 12548849). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12548849

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

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