Magnetic recording medium and production of the same
US4755426A · kind A · utility
54Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Jan 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium which comprises a substrate, a magnetic layer on the substrate and a protective layer which is formed directly on the magnetic layer or on an undercoat layer formed on the magnetic layer, the protective layer comprising a carbonaceous material essentially consisting of carbon, hydrogen and oxygen, which has improved traveling properties and abrasion resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.