Magneto-optical recording medium and method of manufacturing same
US5518826A · kind A · utility
5Cited by
1References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 21, 1993 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Jun 21, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-optical recording medium operable with a low external magnetic field intensity during recording and erasing and attenuating a variation in the external magnetic field intensity comprises a magneto-optical recording layer and protective and reflective layer provided adjacent to the magneto-optical recording layers, each of which has a size of microstructures (which are associated with the non-uniformity in composition, density, crystallizability, and the like and visible under a transmission electron microscope) less than the width of a magnetic domain wall in the magneto-optical recording layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.