ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,463, issued on March 17, was assigned to KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY (Seoul, South Korea).
"Multi-color tunable upconversion nanophosphor" was invented by Ho Seong Jang (Seoul, South Korea), Gumin Kang (Seoul, South Korea), Hyungduk Ko (Seoul, South Korea), Seung Yong Lee (Seoul, South Korea) and Kwang Rok Mun (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a core-multishell upconversion nanophosphor capable of being excited by 800plus-minus20 nm, 980plus-minus20 nm, and 1530plus-minus20 nm near-infrared (NIR) light to emit various colors including green, red, blue, and combinations thereof, and a trans...