Patent ID: 11881725
Assignee: TDK CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 2:
3. The foreign object detection device according to claim 1, wherein
each of the coils has a first conductive pattern mounted on a first surface of the substrate and a second conductive pattern mounted on a second surface of the substrate, the second surface being different from the first surface,
one end of the first conductive pattern is connected to one end of the second conductive pattern,
the first connecting line and the second connecting line are mounted on mutually different surfaces of the substrate,
the first connecting line is connected to another end of the first conductive pattern,
the second connecting line is connected to another end of the second conductive pattern, and
the first connecting line and the second connecting line have an overlap in at least the segments mounted on the substrate among the paths from the individual coils to the detector when viewed from a direction orthogonal to the first surface.