ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,184, issued on July 21, was assigned to HAMAMATSU PHOTONICS K.K. (Hamamatsu-shi, Japan).
"Laser module" was invented by Kazuue Fujita (Hamamatsu, Japan), Shohei Hayashi (Hamamatsu, Japan), Hiroyasu Fujiwara (Hamamatsu, Japan), Atsushi Nakanishi (Hamamatsu, Japan), Akio Ito (Hamamatsu, Japan) and Tatsuo Dougakiuchi (Hamamatsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A laser module including a quantum cascade laser that includes a substrate having a main surface, a first clad layer provided on the main surface, an active layer provided on the first clad layer, and a second clad layer provided on the active layer, and a lens that has a len...