Rare earth magnet molding and method for manufacturing the same
US10287656B2 · kind B2 · utility
0Cited by
4References
22Claims
0Family size
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Inventors
Key dates
| Filing date | Aug 4, 2010 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Nov 5, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/0577
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rare earth magnet molding (1) of the present invention includes rare earth magnet particles (2), and an insulating phase (3) present among the rare earth magnet particles. Segregation regions (4) in which at least one element selected from the group consisting of Dy, Tb, Pr and Ho is segregated are distributed in the rare earth magnet particles (2). Accordingly, the rare earth magnet molding that has excellent resistance to heat in motor environments or the like while maintaining high magnetic characteristics (coercive force) is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.