Patent ID: 11901104
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  C  Y | IPC B  H

Claim 0:
1. A composite magnetic material comprising metal magnetic particles,
the metal magnetic particles including:
first particles having a median diameter D50 of 1.3 μm to 5.0 μm, and
second particles having a median diameter D50 larger than the first particles,
wherein the first particles and the second particles each include a core portion made of a metal magnetic material, and an insulating film on a surface of the core portion,
the insulating film of the second particles has an average thickness of 40 nm to 100 nm,
an average thickness of the insulating film of the first particles is smaller than that of the insulating film of the second particles, and
at least one of the first particles or the second particles comprises a crystalline material or a crystalline phase.