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:
Apr. 07, 2026
Filed:
Aug. 14, 2024
Murata Manufacturing Co., Ltd., Kyoto, JP;
National University Corporation Toyohashi University of Technology, Aichi, JP;
Hiromasa Saeki, Nagaokakyo, JP;
Masaya Tamura, Toyohashi, JP;
Yoshinobu Tamura, Toyohashi, JP;
Suzuka Akai, Toyohashi, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY, Aichi, JP;
Abstract
A wireless power transfer system includes a cavity resonator entirely surrounded by an electromagnetic wave shielding member having appropriate conductivity and frequency selectivity; at least one power reception unit; at least one power transmission unit; and at least one resonator (e.g., a resonant network). In an equivalent circuit of the wireless power transfer system from a power transmission circuit of the power transmission unit to a power reception circuit of the power reception unit, N (N≥2) resonators including the cavity resonator are connected in series via an inverter on a power transmission route from the power transmission circuit to the power reception circuit.