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:
Oct. 20, 2026
Filed:
Feb. 16, 2023
Osaka Gas Co., Ltd., Osaka, JP;
Kri, Inc., Kyoto-shi, JP;
Hajime Kinoshita, Kyoto, JP;
Mayumi Kuriyama, Kyoto, JP;
Osaka Gas Co., Ltd., Osaka, JP;
KRI, INC., Kyoto, JP;
Abstract
The method includes a preparation step of changing a current value or a voltage value of a power storage device; a first measurement step of obtaining a first internal resistance that is an internal resistance when a predetermined first period of time has elapsed from start of change in the current value or the voltage value in the preparation step; a second measurement step of obtaining a second internal resistance that is an internal resistance when a second period of time has elapsed from the start of change in the current value or the voltage value in the preparation step; a calculation step of calculating a resistance value difference by subtracting the first internal resistance from the second internal resistance; and a detection step of detecting generation of gas inside the power storage device based on the resistance value difference.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile