Metal thin film type magnetic recording medium
US5055351A · kind A · utility
6Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1988 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Oct 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprises at least a magnetic recording layer of a metal thin film on a substrate, wherein the stiffness 1/k.sub.O [kgfmm] of the whole medium is within the following range: ##EQU1## [n is a number of layers constituting the magnetic recording medium] E.sub.k : Young's modulus of the k th layer [unit:kgf/mm.sup.2 ] PA1 I.sub.k :moment of inertia of the k th layer [unit:mm.sup.3 ] and the shape of the medium is a disc shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.