ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,288, issued on Feb. 24, was assigned to MITSUBISHI HEAVY INDUSTRIES LTD. (Tokyo).

"Nuclear reactor" was invented by Shota Kobayashi (Tokyo), Satoru Kamohara (Tokyo), Yasutaka Harai (Tokyo), Tadakatsu Yodo (Tokyo), Shohei Otsuki (Tokyo), Nozomu Murakami (Tokyo), Wataru Nakazato (Tokyo), Takashi Hasegawa (Tokyo), Yutaka Tanaka (Tokyo), Tatsuo Ishiguro (Tokyo), Hironori Noguchi (Tokyo), Hideyuki Kudo (Tokyo), Takafumi Noda (Tokyo) and Kazuhiro Yoshida (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object is to change reactor core thermal output. A nuclear reactor includes an annular fuel layer and a heat conductive layer stacked on the fuel l...