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:
Oct. 27, 2026

Filed:

Feb. 01, 2021
Applicant:

Entek Asia Inc, Fuwa-gun, JP;

Inventors:

Shoji Sugiyama, Fuwa-gun, JP;

Keita Mori, Fuwa-gun, JP;

Assignee:

ENTEK ASIA INC, Fuwa-gun, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/437 (2021.01); H01M 50/325 (2021.01); H01M 50/44 (2021.01);
U.S. Cl.
CPC ...
H01M 50/437 (2021.01); H01M 50/325 (2021.01); H01M 50/44 (2021.01);
Abstract

To provide a separator (AGM separator) for valve-regulated lead acid batteries that does not undergo delamination due to bonding between the separators even under severe conditions (a pressure in winding, a high temperature and a high humidity in transportation and storage). A separator (AGM separator) for valve-regulated lead acid batteries, containing a microglass fiber and a heat-fusible organic fiber, the separator having a thickness under a pressure of 20 kPa of more than 0.50 mm and less than 1.80 mm and having a bonding strength between the separators after being left for 48 hours under a pressure of 5 to 10 kPa in an environment of a temperature of 70° C. and a humidity of 75% of less than 0.10 N.


Find Patent Forward Citations

Sugiyama, Shoji. (2026). Separator for valve-regulated lead acid battery using glass fiber and heat-fusible organic fiber (U.S. Patent No. 12776550). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12776550

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

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