ALEXANDRIA, Va., June 10 -- United States Patent no. 12,295,188, issued on May 6, was assigned to Asahi Kasei Microdevices Corp. (Tokyo).
"Infrared optical device" was invented by Hiromi Fujita (Tokyo), Osamu Morohara (Tokyo) and Daiki Yasuda (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a high-performance infrared optical device including a reflecting layer structure that can be widely used in the mid-infrared region. An infrared optical device that has a light emission/reception property of having a peak at a center wavelength Lambda comprises: a semiconductor substrate; and a thin film laminate portion including a first reflecting layer formed on the semiconductor substrate, a lower se...