ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,794, issued on May 13, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).
"Electric power charge and discharge system" was invented by Shuhei Nagatsuka (Atsugi, Japan) and Akihiro Kimura (Takamatsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric power charge and discharge system for an electronic device having a battery, by which the electronic device can be used for a long period of time. In a wireless communication device including a wireless driving portion including a first battery and a wireless charging portion including a second battery, the first battery is charged by electric power from a fixed power...