Magnetic-field molding apparatus
US6992553B2 · kind B2 · utility
4Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2003 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Feb 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polar-anisotropic ring magnet having magnetization directions in alignment with its normal line at each magnetic pole position and in alignment with its tangential line at each middle position between adjacent magnetic poles, and having a substantially constant angle difference in a magnetization direction between adjacent elements, the elements being obtained by division at an equal angle pitch between the magnetic pole position and the middle position adjacent to the magnetic pole position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.