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. 07, 2025

Filed:

Sep. 23, 2022
Applicant:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Inventors:

Fumihito Komakine, Kyoto, JP;

Yosuke Yamada, Kyoto, JP;

Shinichi Uesaka, Kyoto, JP;

Atsushi Ozawa, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/42 (2006.01); G01R 31/36 (2020.01); G01R 31/385 (2019.01); H01M 10/633 (2014.01);
U.S. Cl.
CPC ...
H01M 10/425 (2013.01); G01R 31/3648 (2013.01); G01R 31/385 (2019.01); H01M 10/633 (2015.04); H01M 2010/4271 (2013.01);
Abstract

Provided is an electric storage device including: an electric storage unit; a temperature measurement unit that detects the temperature of the electric storage unit; a current measurement unit that measures the charge/discharge current of the electric storage unit; and a safety evaluation unit that calculates the safety evaluation value of the electric storage unit, where the safety evaluation unit determines a temperature range to which the temperature detected by the temperature measurement unit belongs among multiple temperature ranges, and calculates a safety evaluation value, based on the temperature range as a result of the determination and an accumulated value of a value related to the charge/discharge time of the electric storage unit.


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