Magnetic disk recording and reproducing apparatus

Details Magnetic disk recording and reproducing apparatus Magnetic disk recording and reproducing apparatus

1988-08-17

1990-04-17

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360103, G11B 5012

Patent

active

049185560

ABSTRACT:
A magnetic recording and reproducing apparatus of a type wherein a magnetic disk having a magnetic recording layer formed on a rigid substrate is rotatable at a high speed and a magnetic head is disposed on the surface of the disk so that magnetic recording and reproduction are conducted by the head while rotating the disk at a high speed, wherein the surface roughness R.sub.max of the magnetic disk is adjusted at a level of at most 100 .ANG., and the flying height of the magnetic head at the initiation of flying is adjusted at a level within a range of from 0.01 to 0.04 .mu.m.

REFERENCES:
patent: 4605977 (1986-08-01), Matthews
patent: 4853810 (1989-08-01), Pohl

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