ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,490,946, issued on Dec. 9, was assigned to CANON K.K. (Tokyo).

"Radiation detector and radiation CT apparatus" was invented by Tatsuro Uchida (Tokyo) and Tatsuya Saito (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radiation detector obtained by arranging a plurality of pixels on a semiconductor substrate configured to convert incident radiation into charges is provided. The plurality of pixels comprise a first pixel arranged along an outer edge of the semiconductor substrate and a second pixel arranged closer to a center of the semiconductor substrate than the first pixel. The first pixel comprises a plurality of first electrodes on a...