US Patent Issued to KYOTO UNIVERSITY, MITSUBISHI ELECTRIC on Dec. 2 for "Two-dimensional photonic-crystal laser" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,271, issued on Dec. 2, was assigned to KYOTO UNIVERSITY (Kyoto, Japan) and MITSUBISHI ELECTRIC Corp. (Tokyo).

"Two-dimensional photonic-crystal laser" was invented by Susumu Noda (Kyoto, Japan), Menaka De Zoysa (Muko, Japan), Kenji Ishizaki (Kyoto, Japan), Wataru Kunishi (Kyoto, Japan) and Kentaro Enoki (Nishinomiya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A two-dimensional photonic-crystal laser includes: a substrate made of an n-type semiconductor; a p-type cladding layer on an upper side of the substrate made of a p-type semiconductor; an active layer on an upper side of the cladding layer; a two-dimensional photonic-crystal layer on ...