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US 12,744,150 B2Granted
Magnetic base body containing metal magnetic particles and coil component including the same
AssigneeTaiyo Yuden Co., Ltd.
InventorsTakashi Nakajima, Keiko Yajima
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Abstract
A magnetic base body relating to one or more embodiments of the present invention includes metal magnetic particles exhibiting a volume-based particle size distribution indicating that a most frequent particle size is less than 2 μm and that a cumulative frequency of particle sizes ranging from the smallest particle size to 30% of the most frequent particle size is equal to or less than 1% and an insulating film formed on the surface of each of the metal magnetic particles, where the insulating film exhibits insulating properties.
Claims12
A magnetic base body comprising:
- metal magnetic particles exhibiting a volume-based particle size distribution where a most frequent particle size ranges from 0.3 μm to 1.9 μm and a cumulative frequency of particle sizes ranging from a smallest particle size to 30% of the most frequent particle size is equal to or less than 1%;
- and
- an insulating film formed on a surface of each of the metal magnetic particles, the insulating film exhibiting insulating properties, the insulating film being an oxide of a metal element contained in the metal magnetic particles.
Dependencies are inferred from the claim text.