US Patent Issued to Asahi Kasei Microdevices on April 8 for "Optical element and optical concentration measuring apparatus" (Japanese Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,721, issued on April 8, was assigned to Asahi Kasei Microdevices Corp. (Tokyo).

"Optical element and optical concentration measuring apparatus" was invented by Daiki Yasuda (Tokyo) and Takaaki Furuya (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an optical element, in which: an internal wiring portion electrically connects a first contact electrode portion and a second contact electrode portion to each other; a second region, an active layer and a second conductive semiconductor layer form a mesa structure; a pad electrode is placed so as to cover a plurality of unit elements, and is electrically connected to at least one of the ...