Core-shell type magnetic particle and high-frequency magnetic material
US8703282B2 · kind B2 · utility
1Cited by
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10Claims
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Key dates
| Filing date | Aug 28, 2007 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Apr 2, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A core-shell type magnetic particle comprises magnetic metal particle and an oxide coating layer formed on the surface of the magnetic metal particle. The magnetic metal particle contains a magnetic metal containing at least one selected from the group consisting of Fe, Co and Ni, a nonmagnetic metal and at least one element selected from carbon and nitrogen. The oxide coating layer is constituted of an oxide or a composite oxide containing the nonmagnetic metal which is one of the constituents of the magnetic metal particle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.