ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,230,729, issued on Feb. 18, was assigned to CANON K.K. (Tokyo).
"Photo-detection apparatus and photo-detection system" was invented by Kazuhiro Morimoto (Neuchatel, Switzerland) and Mahito Shinohara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus wherein, in plane view, a first semiconductor region of a first conductivity type overlaps at least a portion of a third semiconductor region, a second semiconductor region overlaps at least a portion of a fourth semiconductor region of a second conductivity type, a height of a potential of the third semiconductor region with respect to an electric charge of the first conductivity type is low...