Magnetic recording and/or reproducing apparatus having a retaini

Details Magnetic recording and/or reproducing apparatus having a retaini Magnetic recording and/or reproducing apparatus having a retaini

1989-04-04

1991-04-09

Levy, Stuart S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specific detail of storage medium support or motion production

369282, 360133, 360 9701, G11B 548, G11B 562

Patent

active

050070401

ABSTRACT:
The disclosed magnetic recording and/or reproducing apparatus uses a disc-shaped magnetic recording bearing medium having a magnetizable member mounted at its center. The apparatus includes a recording and/or reproducing magnetic head and a spindle for rotating the record bearing medium. The spindle is provided with a permanent magnet for attracting the magnetizable member of the medium. The permanent magnet is magnetized in a radial direction of the spindle.

REFERENCES:
patent: 3430966 (1969-03-01), Gregg
patent: 4320833 (1982-03-01), Antoniotti et al.
patent: 4365258 (1982-12-01), Geyer et al.
patent: 4510508 (1985-04-01), Janssen
patent: 4581667 (1986-04-01), Gerfast
patent: 4599663 (1986-07-01), Saito et al.
patent: 4616278 (1986-10-01), Yamaguchi et al.
patent: 4658311 (1987-04-01), Sakaguchi

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