US Patent Issued to Oki Electric Industry on Sept. 1 for "Semiconductor device" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,727,267, issued on Sept. 1, was assigned to Oki Electric Industry Co. Ltd. (Tokyo).

"Semiconductor device" was invented by Yusuke Nakai (Tokyo), Takuma Ishikawa (Tokyo), Kenichi Tanigawa (Tokyo) and Hiroto Kawada (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device includes: a first layer including a first optical semiconductor element; a second layer including a second optical semiconductor element having a lower conversion efficiency than the first optical semiconductor element; and a lens member. The first optical semiconductor element and the second optical semiconductor element are disposed between the lens member and a foca...