Magnetic head for a perpendicular magnetic recording system
US4644431A · kind A · utility
6Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1984 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Nov 30, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3106
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head for recording and reading out of a magnetic recording medium in a perpendicular magnetic recording system is described in which the surface which is close to or in contact with the recording medium are covered with a film of a glasslike carbon material. This film improves the lubrication properties with respect to the adjacent recording medium and serves to prevent abrasion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.