ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,764, issued on March 11, was assigned to Wistron NeWeb Corp. (Hsinchu, Taiwan).
"Transparent electromagnetic wave focusing device" was invented by Chin-Hsien Wu (Hsinchu, Taiwan), Wei-Tung Yang (Hsinchu, Taiwan) and Tsun-Che Huang (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transparent electromagnetic wave focusing device is provided, which includes a plurality of metamaterial unit cells arranged to form a metamaterial array plate, and each metamaterial unit cell includes a plurality of metal layers and a plurality of transparent substrates stacked alternately. Each of the metal layers has a comb-tooth pattern, and the plurali...