Title:
INDUCTOR
Document Type and Number:
WIPO Patent Application WO/2020/184000
Kind Code:
A1
Abstract:
An inductor 1 comprises: wire 2 which has a conductor 4 and an insulating film 5 positioned on the entire peripheral surface of the conductor 4; and a magnetic layer 3 in which the wire 2 is embedded. The magnetic layer 3 comprises magnetic particles. The magnetic layer 3 includes: a first layer 10 in contact with the peripheral surface of the wire 2; a second layer 20 in contact with the surface of the first layer; ... and an nth layer in contact with the surface of the (n-1)th layer (where n is a positive number that is 3 or higher). Among two adjacent layers in the magnetic layer 3, the relative permeability of the layer closest to the wire 2 is lower than the relative permeability of the layer farthest from the wire 2.
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Inventors:
OKUMURA KEISUKE (JP)
FURUKAWA YOSHIHIRO (JP)
FURUKAWA YOSHIHIRO (JP)
Application Number:
PCT/JP2020/004250
Publication Date:
September 17, 2020
Filing Date:
February 05, 2020
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
H01F17/04; H01F27/24; H01F27/255
Foreign References:
| JPS62169407A | 1987-07-25 | |||
| JPH1140979A | 1999-02-12 | |||
| JP2009009985A | 2009-01-15 | |||
| JPS4888475U | 1973-10-25 |
Attorney, Agent or Firm:
OKAMOTO, Hiroyuki et al. (JP)
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