ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,981, issued on Aug. 12, was assigned to DENSO Corp. (Kariya, Japan).
"Battery monitoring device including calculation of impedance using independent electrical path to a response signal input" was invented by Masaaki Kitagawa (Kariya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a battery monitoring device for monitoring a state of a rechargeable battery that includes an electrolyte and a plurality of electrodes, a response signal input unit is configured to receive a response signal of the rechargeable battery to a predefined AC signal, and a calculation unit is configured to calculate a complex impedance of the rechargeable battery base...