Title:
INSULATOR-COATED SOFT MAGNETIC POWDER, METHOD FOR MANUFACTURING INSULATOR-COATED SOFT MAGNETIC POWDER, POWDER MAGNETIC CORE, MAGNETIC ELEMENT, ELECTRONIC DEVICE, AND MOVING BODY
Document Type and Number:
Japanese Patent JP2023114078
Kind Code:
A
Abstract:
To provide an insulator-coated soft magnetic powder capable of suppressing eddy current loss in a high-frequency range and a manufacturing a magnetic element with high magnetic permeability, a method for manufacturing the same, a dust core containing the insulator-coated soft magnetic powder, a magnetic element including the dust core, and an electronic device and a mobile object including the magnetic element.SOLUTION: An insulator-coated soft magnetic powder includes a soft magnetic powder and an insulating coating that covers the surface of the soft magnetic powder and contains a fluorine compound, and the soft magnetic powder has an average particle size of 1 μm or more and 15 μm or less, and the insulating coating has an average thickness of 5 nm or more and 50 nm or less, and the fluorine compound has a relative dielectric constant of 5.0 or less.SELECTED DRAWING: Figure 1
Inventors:
MATSUMOTO YASUTAKA
Application Number:
JP2022016190A
Publication Date:
August 17, 2023
Filing Date:
February 04, 2022
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
H01F1/24; B22F1/00; B22F1/05; B22F1/102; B22F3/00; H01F1/20; H01F27/255
Attorney, Agent or Firm:
Satoshi Nakai
Hiroki Matsuoka
Masayuki Imamura
Hiroki Matsuoka
Masayuki Imamura