ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,181, issued on Feb. 17, was assigned to NEC Corp. (Tokyo).
"Superconducting quantum circuit apparatus and control method therefor" was invented by Aiko Yamaguchi (Tokyo), Tomohiro Yamaji (Tokyo) and Ryoji Miyazaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A superconducting quantum circuit apparatus includes: a coupler; a plurality of coupling ports; a plurality of qubits coupled to the coupler via the plurality of coupling ports, respectively; and a reserve port provided as a spare coupling port to be coupled to the coupler, separately from the plurality of coupling ports."
The patent was filed on July 25, 2024, under Application No. 18...