Magnetic memory and recording-reproducing method for the magnetic memory
US5072421A · kind A · utility
3Cited by
8References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1990 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Oct 1, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/0883
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A magnetic memory has a substrate, a magnetic film provided on the substrate including a recording medium capable of producing a recording carrier, and a light waveguide layer on the magnetic film or on that surface of the substrate which is opposite to a surface on which the magnetic film is present. Recording and reproduction of information are effected relative to the magnetic film by a light propagated through the light waveguide layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.