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AssigneePowdertech Co., Ltd.
InventorsKoji Aga, Takashi Kojima, Takao Sugiura, Tadashi Tsuduki, Satomi Konno, Sho Kuwahara
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Provided are: a ferrite powder whereby, when the ferrite powder is applied in a composite material, dropping out of ferrite particles is suppressed without moldability and filling ability being compromised; a ferrite resin composite material; and an electromagnetic shielding material, an electronic material, or an electronic component. This ferrite powder includes at least spherical or polyhedral ferrite particles in which a step structure is provided on surfaces thereof, the step structure having a polyhedral outline in the surfaces of the ferrite particles.
A ferrite powder comprising spherical or polyhedral ferrite particles having a stepped feature on the surfaces thereof, wherein the stepped feature has polygonal contours on the surfaces of ferrite particles, and a mean interval between adjacent step edges is in a range of 3 nm or more or 50 nm or less.
Dependencies are inferred from the claim text.