Magneto-optical recording medium and production process
US5981093A · kind A · utility
1Cited by
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21Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 10, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
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 having a stack of magnetic layers which include at least one rare earth element and at least one transition metal element. At least one of the magnetic layers contain fluorine with an atomic concentration less than 1%. A process for producing a magneto-optical recording medium including magnetic layers. The process includes a step of controlling the Curie temperatures of the magnetic layers by controlling a fluorine atomic concentration of the magnetic layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.