ALEXANDRIA, Va., June 9 -- United States Patent no. 12,650,474, issued on June 9, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Storage battery diagnosing system" was invented by Sho Shiraga (Tokyo) and Tomoki Takegami (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ammeter measures current when a storage battery having a plurality of single batteries connected in series is charged or discharged. A voltmeter measures total voltage of the storage battery. A calculation device calculates dV/dt obtained by differentiating the total voltage with respect to time on the basis of a relationship between the total voltage and charging time or discharging time, separates a characteristic peak obtained b...