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:
Aug. 04, 2026
Filed:
Mar. 22, 2022
Waseda University, Tokyo, JP;
Takeo Miyake, Tokyo, JP;
Taiki Takamatsu, Tokyo, JP;
WASEDA UNIVERSITY, Tokyo, JP;
Abstract
A sensor system includes a reader side resonant circuit () and a sensor side resonant circuit (). The reader side resonant circuit () is an LCR parallel resonant circuit and a gain circuit. The sensor side resonant circuit () is an LCR parallel resonant circuit and a loss circuit having, as a resistance portion, a sensor element whose resistance value changes according to an object to be sensed. The reader side resonant circuit () and the sensor side resonant circuit () are wirelessly connected to each other through magnetic field resonant coupling to constitute a gain-loss coupling circuit, and the reader side resonant circuit () and the sensor side resonant circuit () are formed such that the gain-loss coupling circuit has parity-time symmetry.