Multilayer magnetic medium with soft magnetic interlayer
US5738945A · kind A · utility
19Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1993 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Dec 16, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A low-noise, thin-film magnetic recording medium, and method of making the same, are disclosed. The medium has a multilayer magnetic-film construction, where the individual magnetic-film layers are isolated by a thin ferromagnetic film. The ferromagnetic layer is effective to reduce the medium noise and increase medium signal-to-noise ratio at least as much as a Cr isolation having the same isolation-layer thickness, but with substantially less reduction in overwrite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.