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US 2026/0237545 A1Published application
Composite magnetic material, dust core, and power choke coil
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYUMA SASAKI, JUNICHI KOTANI
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Abstract
A composite magnetic material contains iron-based soft magnetic alloy particles, inorganic insulating particles, and a thermosetting resin. A surface of each of the inorganic insulating particles is coated with an amphiphilic molecule including a hydrophobic group and a hydrophilic group. The hydrophobic group includes a hydrocarbon chain, and the hydrophilic group includes at least one of a phosphoric acid group and a phosphate salt.
Claims8
A composite magnetic material comprising:
- iron-based soft magnetic alloy particles;
- inorganic insulating particles;
- and
- a thermosetting resin, wherein
- surfaces of the inorganic insulating particles are coated with amphiphilic molecules each including a hydrophobic group and a hydrophilic group,
- the hydrophobic group includes a hydrocarbon chain, and
- the hydrophilic group includes at least one of a phosphoric acid group and a phosphate salt.
4 more elements
Dependencies are inferred from the claim text.