Magnetic recording medium and magnetic storage apparatus
US6689495B1 · kind B1 · utility
22Cited by
31References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2000 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium is constructed to include at least one exchange layer structure and a magnetic layer provided on the exchange layer structure. The exchange layer structure includes a ferromagnetic layer and a non-magnetic coupling layer provided on the ferromagnetic layer. At least one of the ferromagnetic layer and the magnetic layer has a granular layer structure in which ferromagnetic crystal grains are uniformly distributed within a non-magnetic base material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.