The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2026
Filed:
Jan. 26, 2023
Nec Corporation, Tokyo, JP;
Tomohiro Yamaji, Tokyo, JP;
Ryoji Miyazaki, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A superconducting quantum circuit apparatus includes first through fourth qubits; and a coupler arranged in a region surrounded by a ground plane. The coupler includes: first and second electrodes opposed to each other; and a nonlinear element including at least one Josephson junction bridged between the first electrode and the second electrode between the first and second electrode, the first electrode including first and second opposing portions extended toward the first and second qubits, the second electrode including third and fourth opposing portions extended toward third and fourth qubit, the first through fourth opposing portions having ends for capacitive coupling with the first through fourth qubits, respectively. The ends of the first through fourth opposing portions are disposed within the region surrounded by the ground plane.