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:
Dec. 05, 2023
Filed:
Dec. 04, 2020
Tdk Corporation, Tokyo, JP;
Akira Gotani, Tokyo, JP;
Kazuki Kondo, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A foreign object detection device includes a detection coil unit including a detection coil substrate () and a plurality of coils (), which are mounted on a surface of the detection coil substrate () and each include a conductive pattern turned around the Z axis, and a detector () connected to the coils () to detect the existence of a foreign object on the basis of a vibration signal output when each of the coils () is excited. The coils () each define an opening. The detection coil substrate () has a through hole () extending through the detection coil substrate (), and a component space for accommodating a switch () or a wiring pattern (), within each of the openings of the coils () as seen in the Z-axis direction.