US Patent Issued to International Business Machines on Sept. 15 for "Variable impedance Josephson junction traveling-wave parametric circuits" (New York Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,910, issued on Sept. 15, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Variable impedance Josephson junction traveling-wave parametric circuits" was invented by Ted Thorbeck (Elmsford, N.Y.) and Corrado P Mancini (Hopewell Junction, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device comprises a Josephson junction traveling-wave parametric circuit. The Josephson junction traveling-wave parametric circuit comprises unit cells which are coupled in series to form a transmission line between an input port and an output port. Each unit cell comprises a series Josephson junction, and a capacitor shunted to ground. An imp...