Magnetic recording and reproduction

Details Magnetic recording and reproduction Magnetic recording and reproduction

1990-11-14

1992-08-18

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

360135, G11B 5127, G11B 5706

Patent

active

051404869

ABSTRACT:
Information is magnetically recorded in and reproduced from a magnetic disk using a flying magnetic head. The disk is a coating type disk comprising a rigid substrate having a magnetic layer coated thereon from a magnetic coating composition of ferromagnetic submicron particles in a binder. High density recording is possible when the magnetic layer having a coercive force of at least 1100 Oe and a thickness of up to 0.5 .mu.m is combined with the flying magnetic head whose gap adjoining portion is made of a soft magnetic material having a saturation magnetic flux density of at least 0.7 T.

REFERENCES:
patent: 4734810 (1988-03-01), Nakayama et al.

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