Perpendicular media with Cr-doped Fe-alloy-containing soft underlayer (SUL) for improved corrosion performance
US7566508B2 · kind B2 · utility
3Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2005 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Feb 16, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/667
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A perpendicular magnetic recording medium having a substrate, a Cr-doped Fe-alloy-containing underlayer containing about 8 to 18 at % Cr and a perpendicular recording magnetic layer, and a process for improving corrosion resistance of the recording medium and for manufacturing the recording medium are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.