Magnetic recording medium
US4425404A · kind A · utility
138Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1982 |
| Grant date | Jan 10, 1984 |
| Priority date | — |
| Expiry date | Sep 17, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic recording medium having an oxygen-containing thin ferromagnetic metal layer formed on a nonmagnetic substrate, at least one compound capable of suppressing the hydration of the ferromagnetic metal ions by acting thereon is located on or in the vicinity of the surface of the thin ferromagnetic metal layer. A lubricant may further be applied on the thin ferromagnetic metal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.