ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,714, issued on May 13, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Charge and discharge control device and charge and discharge control method including first, second, and third charge level ranges" was invented by Keisuke Ogasawara (Tokyo) and Tomoki Takegami (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A charge and discharge control device includes a storage charge level determining unit that selects one range from a first charge level range lower than a second charge level range and a third charge level range higher than the second charge level range, and determines a charge level at storage during which charge and discharge of a...