ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,548,919, issued on Feb. 10, was assigned to MINEBEA MITSUMI Inc. (Nagano, Japan).
"Feed device and feed method" was invented by Masaaki Fujii (Nagano, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A feed device repeats a frame including multiple subframes to control phases of power transmission signals from multiple first antennas located around each of multiple first power receivers, such that the phases sequentially change while maintaining a phase relation between the power transmission signals, so as to match the phases of the power transmission signals that one of the multiple first power receivers receives from the multiple first antennas. ...