ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,402,449, issued on Aug. 26, was assigned to Seoul Viosys Co. Ltd. (Gyeonggi-do, South Korea).
"Flip chip type light emitting device" was invented by Jin Woong Lee (Gyeonggi-do, South Korea), Kyoung Wan Kim (Gyeonggi-do, South Korea), Tae Jun Park (Gyeonggi-do, South Korea) and Sang Won Woo (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light emitting device includes a substrate including a roughened surface; a light emitter disposed on the substrate, which includes a first conductivity layer; and a mesa disposed on a partial region of the first conductivity layer. An ohmic electrode can be disposed on the mesa; and a contact ...