Magnetic recording medium with partially oxidized seed layer
US5866227A · kind A · utility
14Cited by
3References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1996 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Aug 20, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprising a glass or glass-ceramic substrate is formed by sequentially depositing thereon a partially oxidized NiP seed layer, an underlayer and a magnetic layer. The partially oxidized NiP seed layer is formed by reactive sputtering in a gas mixture of argon and oxygen. The resulting magnetic recording medium exhibits low medium noise and high coercivity rendering it suitable for high density magnetic recording.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.