Magneto-optical recording medium, and method and apparatus for producing the same
US6747919B2 · kind B2 · utility
2Cited by
6References
20Claims
0Family size
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Key dates
| Filing date | Apr 18, 2002 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10584
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
By irradiating a light beam between recording tracks of the magneto-optical recording medium, the magnetic anisotropy of at least one layer selected from the group consisting of the domain wall displacement layer and the recording layer formed between the recording tracks can be made lower than that of said layers on the recording tracks, and a bias magnetic field is applied at least between recording tracks while a light beam is radiated. Because of this, initialization of a medium may be conducted simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.