ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,227, issued on Aug. 25, was assigned to Nobuhiro Umemura (Hokkaido, Japan), Josho Gakuen Educational Foundation (Osaka, Japan) and Tosoh SGM Corp. (Yamaguchi, Japan).

"Ultraviolet laser light generation device" was invented by Nobuhiro Umemura (Hokkaido, Japan), Tomosumi Kamimura (Osaka, Japan) and Hideharu Horikoshi (Yamaguchi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a 399.08-nm wavelength ultraviolet laser light generating device, comprising: an excitation light source part for converting a 1064.2-nm laser light to a second harmonic, and generating a 532.1-nm laser light; an optical parametric oscillat...