Granted Patent B2

US 12,205,754 · App. 17/437,680 · Granted Jan 21, 2025

Inventors: Yoshihiro Furukawa (Osaka, JP); Keisuke Okumura (Osaka, JP)

Assignee: NITTO DENKO CORPORATION

H01F27/2823H01F1/37H01F27/245H01F27/324

Abstract

Claims (14)

1. An inductor comprising:

a wire, and a magnetic layer covering the wire, wherein

the wire includes a conducting line, and an insulating layer covering the conducting line;

the magnetic layer contains an anisotropic magnetic particle, and a binder;

in a peripheral region of the wire, the magnetic layer includes an orientated region in which the anisotropic magnetic particle is orientated along a periphery of the wire;

the peripheral region is, in a cross-sectional view, a region from an outer surface of the wire to an outward distance of 1.5 times an average of a longest length and a shortest length from a center of gravity of the wire to the outer surface of the wire;

one surface in a thickness direction of the inductor has a protruding portion caused by the wire;

a plurality of wires are disposed spaced apart from each other in a direction perpendicular to the thickness direction;

a vertical distance between an uppermost end of the protruding portion and a midpoint between the plurality of wires on one surface in the thickness direction of the inductor is 5 μm or more; and

the magnetic layer covers entire outer peripheral surfaces of the plurality of wires.

2. The inductor according to claim 1 , wherein

the plurality of wires are continuous through the magnetic layer.

3. The inductor according to claim 1 , wherein

a shape in a cross-sectional view of the wire is circular.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (105)