Magneto-optical memory apparatus having a floating magnetic head
US5020041A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1988 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Feb 8, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10571
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-optical memory apparatus has an optical head for applying a light to a substrate of a recording medium such as a magneto-optical disk having a magneto-optical recording film formed on the substrate and continuously applying a high power laser beam in a record mode, and a floating magnetic head arranged on the opposite side of the recording medium to the side of the optical head and adapted to be kept at a substantially constant distance from the recording medium by an air pressure created between the magnetic head and the recording medium by the movement of the recording medium, for applying, in the record mode, a magnetic field which is polarity-inverted or intensity-modulated according to information to be recorded, to the magneto-optical recording film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.