ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,989, issued on March 3, was assigned to NEC Corp. (Tokyo).
"Superconducting circuit and quantum computer" was invented by Masahiro Hasegawa (Tokyo), Tsuyoshi Yamamoto (Tokyo) and Yoshihito Hashimoto (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A superconducting circuit and a quantum computer capable of implementing four-body interaction using a plurality of superconducting qubit circuits supplied with signals of the same frequency are provided. A superconducting circuit (1) includes four superconducting qubit circuits (10), a coupling circuit (20) directly connected to the four superconducting qubit circuits (10). Each of the superconductin...