ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,490,540, issued on Dec. 2, was assigned to Dexerials Corp. (Tochigi, Japan).
"Optical semiconductor array" was invented by Takehito Satoh (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In an optical semiconductor array (1A) having a semiconductor substrate (10) and a plurality of mesa-shaped optical semiconductor elements (11a to 11d) separated by grooves (12a, 12b) on the semiconductor substrate (10), each of the plurality of optical semiconductor elements (11a to 11d) comprises a semiconductor laminated part (20) including a first semiconductor layer (20a) in contact with the semiconductor substrate (10), and a connecting hole (21a) forme...