Magnetic memory device having a perfluro-polyether film coated o

Details Magnetic memory device having a perfluro-polyether film coated o Magnetic memory device having a perfluro-polyether film coated o

1994-11-04

1996-01-16

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9704, G11B 3314

Patent

active

054853273

ABSTRACT:
Mechanical components including a magnetic head 3 and a magnetic disk medium 4 are contained in a housing 6 separating from outside atmosphere 5. A perfluoro-polyether film 9 is coated on the inner surface of said housing 6 and the upper surface of a base 2 provided with the housing 6. Floating dust in the housing 6 adheres on and is incorporated in said perfluoro-polyether film 9 so that dust is removed from the space in the housing 6 thereby the space in the housing 6 is maintained at a clean state free from dust. As a result, the head flotation is stabilized, abrasion of the medium and the head can be avoided and the occurrence of head-crush can be prevented.

REFERENCES:
patent: 3975769 (1976-08-01), King
patent: 4307425 (1981-12-01), Kaneko et al.
patent: 4529659 (1985-07-01), Hoshino et al.
patent: 4626941 (1986-12-01), Sawada et al.
patent: 4933797 (1990-06-01), Mizutani et al.
patent: 5193046 (1993-03-01), Lemke et al.

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