ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,505,371, issued on Dec. 23, was assigned to NEC Corp. (Tokyo).
"Quantum device and quantum computer" was invented by Akira Miyata (Tokyo), Katsumi Kikuchi (Tokyo), Suguru Watanabe (Tokyo), Takanori Nishi (Tokyo), Hideyuki Satou (Tokyo), Tomohiro Yamaji (Tokyo), Tsuyoshi Yamamoto (Tokyo) and Yoshihito Hashimoto (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a quantum device capable of suppressing reduction in performance of quantum bit even when a quantum chip is flip-chip mounted on an interposer. A quantum chip (10) is flip-chip mounted on an interposer (20) by a bump (30). A coplanar line (12) coupling adjacent quantum bits is forme...