ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,788, issued on April 22, was assigned to FUJIFILM Corp. (Tokyo).
"Laser oscillation element" was invented by Yukito Saitoh (Minamiashigara, Japan), Katsumi Sasata (Minamiashigara, Japan) and Makoto Shimizu (Minamiashigara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a laser oscillation element including a cholesteric liquid crystal layer, in which even in a case where the intensity of excitation light is weak, laser oscillation can be induced. The laser oscillation element includes a cholesteric liquid crystal layer obtained by cholesteric alignment of a liquid crystal compound, in which in a cross-section of the cholesteric liqu...