High density information recording medium, and manufacturing method of the same medium
US6641934B1 · kind B1 · utility
12Cited by
7References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 17, 2000 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Aug 17, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To present an information recording medium for achieving high density information recording, in particular, a high signal output and a high resolution in magnetic recording, for example, an information recording medium sequentially forming a layer made of soft magnetic material, a layer made of nonmagnetic material, and an information recording layer of ordered alloy with L10 crystal structure selected from group A is manufactured in a specified manufacturing method. Herein the group A is defined to include FePt ordered alloy, CoPt ordered alloy, FePd ordered alloy, and their alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.