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US 11,887,762 B2Granted
Soft magnetic metal powder, dust core, and magnetic component
AssigneeTDK Corporation
InventorsSatoko Mori, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Takuma Nakano, Seigo Tokoro, Shota Otsuka, Toru Ujiie, Kentaro Mori
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Abstract
A soft magnetic metal powder comprising soft magnetic metal particles including Fe, wherein a surface of the soft magnetic metal particle is covered by a coating part having an insulation property, and the coating part includes a soft magnetic metal fine particle.
Claims14
A soft magnetic metal powder comprising coated particles, each of the coated particles comprises a soft magnetic metal particle including Fe and a coating part having an insulation property, wherein
- the coating part is formed on a surface of the soft magnetic metal particle,
- a soft magnetic metal fine particle exists inside the coating part and is completely surrounded by the coating part,
- an aspect ratio of the soft magnetic metal fine particle is 1:2 to 1:10000,
- the coating part includes at least one selected from the group consisting of a phosphate based glass, a bismuthate based glass and a borosilicate based glass, as a main component, and
- a thickness of the coating part is 1 nm or more and 200 nm or less.
2 more elements
Dependencies are inferred from the claim text.