Media for high density perpendicular magnetic recording
US8110298B1 · kind B1 · utility
11Cited by
94References
25Claims
0Family size
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Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | May 27, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/672
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Perpendicular magnetic recording media having a magnetic capping layer that is exchange coupled to an underlying perpendicular magnetic recording layer. The magnetic coupling layer is a granular layer having a high saturation magnetization (Ms). The perpendicular magnetic recording layer can include magnetic grains separated by an oxide grain boundary phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.