Magnetic recording medium having a coupling agent disposed between a protective layer and a lubricating layer
US5113302A · kind A · utility
8Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1989 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Nov 20, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium having a durability improving, carbon protective film formed on a surface of a magnetic recording layer, which is in turn disposed on a substrate, and a lubricant coated on a surface of the carbon film remote from the substrate; wherein a coupling agent layer is disposed between the carbon protective film and the lubricant, so that the force of adhesion of the lubricant to the carbon film is greatly improved, thus producing a magnetic recording medium having excellent lubricity and wear resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.