US Patent Issued to DENSO, TOYOTA JIDOSHA, MIRISE Technologies, QD LASER on July 15 for "Optical semiconductor device" (Japanese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,405, issued on July 15, was assigned to DENSO Corp. (Kariya, Japan), TOYOTA JIDOSHA K.K. (Toyota, Japan), MIRISE Technologies Corp. (Nisshin, Japan) and QD LASER Inc. (Kawasaki, Japan).

"Optical semiconductor device" was invented by Yuki Kamata (Nisshin, Japan), Hiroyuki Tarumi (Nisshin, Japan), Koichi Oyama (Nisshin, Japan), Keizo Takemasa (Kawasaki, Japan), Kenichi Nishi (Kawasaki, Japan) and Yutaka Ohnishi (Kawasaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical semiconductor device includes an active layer having a plurality of quantum dot layers. The plurality of quantum dot layers include: a first quantum dot layer doped with...