US Patent Issued to SONY SEMICONDUCTOR SOLUTIONS on May 26 for "Surface emitting laser" (Japanese Inventor)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,540, issued on May 26, was assigned to SONY SEMICONDUCTOR SOLUTIONS Corp. (Kanagawa, Japan).

"Surface emitting laser" was invented by Shinichi Agatuma (Kumamoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface emitting laser according to one embodiment of the disclosure includes a stacked structure including, in order, a first DBR layer, an active layer, a second DBR layer, and a first electrically conductive contact layer. The stacked structure further includes a second electrically conductive contact layer and a two-dimensional electron gas generation layer between the first DBR layer and the active layer or in the first DBR layer. T...