Substrate used for magnetic disk and magnetic recording medium using the substrate
US5427867A · kind A · utility
10Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1994 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Jun 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A substrate used for magnetic disk comprising s non-magnetic support in which a material for forming pits is formed on the surface, wherein the material for forming the surface pits comprises a low melting metal and has an island structure discontinuous in the direction within the plane at the surface of the non-magnetic support, thereby enabling to produce a magnetic disk of excellent magnetic property at high productivity, as well as a magnetic recording medium using such a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.