US Patent Issued to NEC on July 7 for "Superconducting quantum circuit" (Japanese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,675,722, issued on July 7, was assigned to NEC Corp. (Tokyo).

"Superconducting quantum circuit" was invented by Ryoji Miyazaki (Tokyo) and Tsuyoshi Yamamoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A superconducting quantum circuit includes first to fourth qubits and a coupler including a loop circuit connected between one end and other end of the coupler and a capacitor connected in parallel to the loop circuit, wherein the loop circuit includes n (nless than=2) first Josephson junctions arranged in series and a second Josephson junction arranged in parallel with the n first Josephson junctions with a junction size smaller than that of the ...