Heat-assisted magnetic recording method and test record reproduction method
US7665102B2 · kind B2 · utility
4Cited by
5References
3Claims
0Family size
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Key dates
| Filing date | Sep 1, 2005 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Aug 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A heat-assisted magnetic recording method is provided for implementing information recording on a recording magnetic film of a magnetic recording medium rotated around a rotation center. The method includes the steps of: illuminating a recording region in the magnetic film with a laser beam for locally heating the recording region; and applying a recording magnetic field to the heated recording region. The power of the laser beam illuminating the recording region is selected in accordance with the distance between the rotation center and the recording region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.