Magnetic recording medium and apparatus for preparing the same
US4387136A · kind A · utility
18Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1981 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Mar 23, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin metallic layer type magnetic recording medium having thin metallic layers in a structure comprises a layer in which a tilt angle of a metallic particle direction to the normal line to said substrate gradually increases depending upon an increase of a distance from said substrate; and a layer in which a tilt angle of a metallic particle direction to the normal line to said substrate gradually decreases depending upon an increase of a distance from said substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.