Magnetic recording medium
US4609593A · kind A · utility
4Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1984 |
| Grant date | Sep 2, 1986 |
| Priority date | — |
| Expiry date | Jul 16, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12931
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A perpendicular magnetic recording medium composed of a base material, a 1st magnetic thin layer formed on the base material, and a perpendicularly magnetizable 2nd magnetic thin layer formed on the 1st magnetic thin layer, wherein the 1st magnetic thin layer is composed of a Co-base ternary amorphous alloy containing small amounts of Hf and Ta.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.