Magneto-optical recording medium having plural dielectric layers with different thermal conductivities
US5930207A · kind A · utility
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5Claims
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Key dates
| Filing date | Dec 3, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Dec 3, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10584
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-optical recording medium provided with a first dielectric layer formed on a substrate, a second dielectric layer containing at least silicone nitride and formed on the first dielectric layer, and a recording layer consisting of a magnetic film with a Curie temperature of the 200.degree. C. or higher and formed on the second dielectric layer. This magneto-optical recording medium is characterized in that the thermal conductivity of the first dielectric layer is smaller than that of the second dielectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.