Frictionally sliding head magnet disk apparatus

Details Frictionally sliding head magnet disk apparatus Frictionally sliding head magnet disk apparatus

1996-12-18

1998-10-20

Thomas, Tom

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360103, 360110, G11B 548, G11B 2116

Patent

active

058255915

ABSTRACT:
The present invention relates to a magnetic disk unit of a high memory capacity wherein a magnetic head and a magnetic disk with a lubricant layer formed on the surface thereof are allowed to perform a relative motion in a mutually contacted state to write and read out information of a high recording density, and the invention is also concerned with the shape and material of the magnetic head suitable for a continual sliding motion of the head on the magnetic disk surface, as well as the lubricant layer formed on the disk surface. According to the present invention, the magnetic head, which has a slider surface of a predetermined curvature, is supported by an arm through a spring and is pushed onto the magnetic disk surface with the lubricant layer formed thereon, then with rotation of the magnetic disk, the lubricant layer liquefies and information is recorded or read out in a contacted state of the head and the disk. The distance between the magnetic head and the disk surface can be shortened to a great extent and the recording density of the magnetic disk can be increased remarkably, thereby permitting a larger capacity of the magnetic disk unit.

REFERENCES:
patent: 3466156 (1969-09-01), Peters et al.
patent: 4735840 (1988-04-01), Hedgcoth
patent: 4901189 (1990-02-01), Kubo et al.
patent: 5118577 (1992-06-01), Brar et al.
patent: 5140569 (1992-08-01), Neobashi
patent: 5365700 (1994-11-01), Sawada et al.

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