Magnetic recording medium
US4816334A · kind A · utility
40Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Apr 3, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic recording medium wherein a metal thin film magnetic layer, a protective film or carbon, and a topcoat layer are formed on a rigid substrate in this order, the topcoat layer is from an organic fluorine compound by gas phase deposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.