Magnetic-field generator for use in a magneto-optical disk unit

Details Magnetic-field generator for use in a magneto-optical disk unit Magnetic-field generator for use in a magneto-optical disk unit

1994-04-04

1996-05-14

Levy, Stuart S.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360103, G11B 708, G11B 5187, G11B 1110

Patent

active

055174728

ABSTRACT:
A sliding part of a magnetic-field generator is configured to slide above and spaced from a surface of a loaded magneto-optical disk in a floating manner. A magnetic-field generating part, which provides a magnetic field to the magneto-optical disk, includes a magnetic pole disposed on a side of the sliding part such that the magnetic pole and the sliding part are positioned adjacent to each other in a radial direction of the surface of the loaded magneto-optical disk and such that the magnetic pole is located closer to a periphery of the magneto-optical disk than the sliding part. An entire flat end surface of the magnetic pole confronting the surface of the magneto-optical disk is generally parallel to and recedes from a slide surface of the sliding part such that the entire flat end surface is spaced further from the surface of the magneto-optical disk than the slide surface of the sliding part.

REFERENCES:
patent: 3811856 (1974-05-01), Ruszczyk et al.
patent: 4285019 (1981-08-01), Scott et al.
patent: 5020041 (1991-05-01), Nakao et al.
patent: 5091810 (1992-02-01), Kakizaki et al.
patent: 5140569 (1992-08-01), Nebashi
patent: 5239532 (1993-08-01), Hensing et al.
patent: 5253232 (1993-10-01), Akagi et al.

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