Magnetic recording media and process of producing them
US4400444A · kind A · utility
2Cited by
0References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1982 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | Jun 3, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium having a ferromagnetic layer formed by oblique vapor deposition wherein the residual magnetic flux density in the width direction of the recording medium is larger than the residual magnetic flux density in the longitudinal direction shows the SN ratio in a practical level at recording in the width direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.