Magnetic recording medium and manufacturing method therefor
US7586830B2 · kind B2 · utility
5Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2006 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Oct 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/851
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a novel magnetic recording medium which less damages the recording layer and of which recording tracks are fully magnetically spaced apart and manufacturing method therefor. The present invention provides the magnetic recording medium having a recording layer on a member with concave and convex portions, wherein the recording layer is provided on the concave and convex portions, and the recording layers on the concave and convex portions are different in magnetic properties with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.