Magnetic recording medium and method for manufacturing the same
US5981054A · kind A · utility
22Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Jul 21, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprising a substrate and a magnetic film formed on the substrate, the magnetic film including magnetic crystal grains in a non-magnetic matrix and satisfying the condition given below: EQU d.sup.2 .multidot.t.multidot.Ir/(v.multidot.Isb).gtoreq.0.75 where PA1 t: a thickness of the magnetic film; PA1 Ir: a remanent magnetization moment of the magnetic film; PA1 d: an average particle size of the magnetic crystal grains in an intra-film direction of the magnetic film; and PA1 v.multidot.Isb: an activated magnetization moment of the magnetic film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.