Information recording method capable of verifying recorded information simultaneously with recording, and magneto-optical recording medium used in the method
US5862105A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Mar 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10515
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-optical recording medium includes a substrate, a reproducing layer formed on the substrate, a recording layer formed on the reproducing layer, and an intermediate layer formed between the reproducing layer and the recording layer. The reproducing layer has an in-plane magnetization film at room temperature. The recording layer has a Curie temperature lower than that of the reproducing layer. The intermediate layer has a Curie temperature lower than those of the reproducing layer and the recording layer. The reproducing layer changes to a perpendicular magnetization film at a temperature between room temperature and the Curie temperature of the intermediate layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.