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:
Jul. 07, 2026
Filed:
Jun. 22, 2022
Nec Corporation, Tokyo, JP;
Ryoji Miyazaki, Tokyo, JP;
Tsuyoshi Yamamoto, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
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 (n>=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 first Josephson junction, the first and second qubits capacitively coupled to the one end of the coupler, the third and fourth qubits capacitively coupled to the other end of the coupler, a magnitude of a coupling coefficient of the four-body interaction by the coupler being configurable based on circuit parameters including at least the n and α (0<α<1) which is a ratio of a Josephson energy between the second Josephson junction and the first Josephson junction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile