Magnetic recording and reproduction system having opposed magnet

Details Magnetic recording and reproduction system having opposed magnet Magnetic recording and reproduction system having opposed magnet

1991-11-12

1993-04-20

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360102, 3601303, G11B 548, G11B 2116

Patent

active

052047954

ABSTRACT:
A magnetic recording and reproduction system having magnetic heads opposing each other across a magnetic disk. The heads have shaped control portions to generate a negative pressure between the magnetic heads and the magnetic disk in association with rotation of the magnetic disk. One magnetic head is supported by an elastic member which is structured to be slightly dislocatable by the negative pressure. The magnetic heads are caused by the negative pressure to come in sliding contact with both sides of the magnetic disk, thereby obtaining positive sliding contact with extremely small contact resistance between the magnetic heads and the magnetic disk and achieving a good head contact while minimizing abrasion of the magnetic disk and the magnetic heads. The control portions to generate the negative pressure are formed integrally with the magnetic heads, thus simplifying the structure, reducing the manufacturing steps such as positioning procedures and achieving a reduction in cost.

REFERENCES:
patent: 4803578 (1989-02-01), Fujiwara et al.
patent: 4912582 (1990-03-01), Gomi et al.
patent: 4926274 (1990-05-01), Saitoh et al.
patent: 4945436 (1990-07-01), Nagashima
patent: 4974106 (1990-11-01), White et al.
patent: 4984121 (1991-01-01), Nagashima
patent: 5047884 (1991-09-01), Negishi et al.
patent: 5086360 (1992-02-01), Smith et al.

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