Magneto-optical medium utilizing domain wall displacement
US6177175A · kind A · utility
23Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1998 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Oct 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24355
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a magneto-optical medium of the type that information recorded therein is reproduced by displacing a domain wall, the medium comprises a substrate, and a magnetic layer provided on the substrate, which permits domain wall displacement, wherein the surface roughness Ra of the substrate is 1.2 nm or smaller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.