US Patent Issued to Asahi Kasei Microdevices on Jan. 13 for "Optical concentration measuring apparatus" (Japanese, Swedish Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,603, issued on Jan. 13, was assigned to Asahi Kasei Microdevices Corp. (Tokyo).

"Optical concentration measuring apparatus" was invented by Shota Isshiki (Tokyo), Takaaki Furuya (Tokyo) and Hans Martin (Delsbo, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical concentration measuring apparatus (1) that includes: a light emitter (3) on a main surface (20) of a substrate (2) that emits light from a light-emitting surface; a light receiver (4) on the main surface of the substrate that receives light at a light-receiving surface; and a light guide (5) that guides light emitted by the light emitter to the light receiver. The light guide in...