Additive manufacture of anisotropic rare earth magnets
US11920224B2 · kind B2 · utility
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Key dates
| Filing date | Jan 10, 2022 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Feb 14, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A magnet structure includes columnar grains of rare earth permanent magnet phase aligned in a same direction and arranged to form bulk anisotropic rare earth alloy magnet having a boundary defined by opposite ends of the columnar grains and lacking triple junction regions, and rare earth alloy diffused onto opposite ends of the bulk anisotropic rare earth alloy magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.