ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,236, issued on March 17, was assigned to FDK Corp. (Tokyo).
"Battery pack, charging system, and method for charging battery pack" was invented by Yasunari Mizoguchi (Tokyo) and Yusuke Kusagaya (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A battery pack is provided in which the battery pack itself can recognize a determination of a full charge, which is made by a charger, without using a communication line. A battery pack is provided with a secondary battery, current measurement means for measuring a charging current for charging the secondary battery, and a control circuit which receives an output signal from the current measurement means....