Patent ID: 9653203
Date: 2017-05-16
CPC Classifications: H01F

Claim:
1. A multilayer inductor comprising: a plurality of electrically insulating magnetic layers that are laminated; and conductive patterns that are laminated, each of the conductive patterns being connected in sequence in the lamination direction to form a spirally circulating coil inside the magnetic layers, both ends of the coil being drawn out to an outer peripheral part, wherein an annular permanent magnet layer magnetized so as to emit a magnetic flux whose direction is opposite to a direction of a magnetic flux excited by the coil is disposed between an outer peripheral edge of the multilayer inductor and an outer peripheral edge of the coil so as not to overlap an inner peripheral part of the annular permanent magnet layer with the conductive patterns and so as to block a space between the conductive patterns and the annular permanent magnet layer, in axial view of the coil.