ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,932, issued on Oct. 28, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Power conversion device" was invented by Takuya Kajiyama (Tokyo), Toshiyuki Fujii (Tokyo), Shuhei Fujiwara (Tokyo) and Kazuyori Tahata (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power conversion device includes a power converter including a plurality of arms each having a plurality of converter cells cascaded to each other. A control device includes an AC current controller to control AC current flowing between the power converter and an AC circuit and a circulating current controller to control circulating current flowing between the arms of the power converter...