Magneto-optical memory apparatus having a floating magnetic head

Details Magneto-optical memory apparatus having a floating magnetic head Magneto-optical memory apparatus having a floating magnetic head

1988-02-08

1991-05-28

Levy, Stuart S.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, G11B 1304, G11B 1112

Patent

active

050200410

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.

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patent: 4849952 (1989-07-01), Shiho
Iwabuchi, Patents Abstracts of Japan, p. 475, vol. 10, No. 19, Jul. 9, 1986, "Magnetic Recording Optical Reproducing Device".
Ogawa, "Optical head for Optomagnetic Disc", Patents Abstracts of Japan, p. 459, vol. 10, No. 14, May 27, 1986.
Hartman et al., "Erasable Magneto-Optical Recording Media", IEEE Trans. Magnetics, MAG-20, vol. 5, p. 1013 (1984).

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