ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,721,049, issued on Aug. 25, was assigned to NEC Corp. (Tokyo).

"Quantum device" was invented by Katsumi Kikuchi (Tokyo), Akira Miyata (Tokyo), Suguru Watanabe (Tokyo), Takanori Nishi (Tokyo), Hideyuki Satou (Tokyo), Kenji Nanba (Tokyo) and Ayami Yamaguchi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a quantum device capable of improving cooling performance. A quantum device includes a quantum chip configured to perform information processing using a quantum state, and an interposer on which the quantum chip is mounted, and the quantum chip is arranged inside a recess 31 formed in a sample stage having a cooling function, and a part ...