Dual-magnetic layer high anisotropy media with orientation initialization layer
US8945732B1 · kind B1 · utility
1Cited by
15References
11Claims
0Family size
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Key dates
| Filing date | Aug 5, 2010 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Mar 9, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/737
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording medium comprising a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, a soft magnetic underlayer disposed under the magnetic recording layer and physically coupled to the magnetic recording layer through one or more intermediate layers magnetically decoupling the soft magnetic underlayer from the magnetic recording layer, and an orientation initialization layer disposed between the magnetic recording layer and the soft magnetic underlayer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.