ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,400,470, issued on Aug. 26, was assigned to Magnolia White Corp. (Tokyo).
"Method for manufacturing a light guide portion" was invented by Yasushi Tomioka (Tokyo), Kazuki Matsunaga (Tokyo), Toshiyuki Higano (Tokyo) and Kazuhiro Nishiyama (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to an aspect, a detection device includes: a plurality of light-receiving elements configured to receive light; and a light guide portion one surface of which faces the light-receiving elements. The light guide portion includes a plurality of light guide paths provided throughout from the one surface to the other surface of the light guide portion, and a li...