ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,446,354, issued on Oct. 14, was assigned to TRUPIXEL INC. (Daejeon, South Korea).

"Single-photon detection element, electronic device, and lidar device" was invented by Myung-Jae Lee (Seoul, South Korea) and In-Ho Lee (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A single-photon detection element includes a substrate including a first surface and a second surface located opposite to each other, and a plurality of plasmonic nanopatterns provided on the second surface, wherein the substrate includes a high-concentration doping region provided adjacent to the first surface, a substrate region provided between the high-concentration dop...