ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,419,140, issued on Sept. 16, was assigned to Seoul Viosys Co. Ltd. (Gyeonggi-do, South Korea).
"UV light emitting diode" was invented by Tae Gyun Kim (Gyeonggi-do, South Korea), Seon Min Bae (Gyeonggi-do, South Korea), Seom Geun Lee (Gyeonggi-do, South Korea) and Kyu Ho Lee (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A UV light emitting diode includes a substrate having a plurality of holes surrounded by a flat surface, a first conductivity type semiconductor layer disposed on the substrate, a second conductivity type semiconductor layer disposed on the first conductivity type semiconductor layer, an active layer disposed b...