Floating type magnetic head device

Details Floating type magnetic head device Floating type magnetic head device

1990-12-07

1992-10-20

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360102, 360104, G11B 548, G11B 560, G11B 1564

Patent

active

051575680

ABSTRACT:
A floating type magnetic head device of the present invention includes a slider capable of floating above a recording medium while moving relatively to the recording medium, and a magnetic head. The magnetic head is incorporated inside a cavity section formed substantially in the center of the slider. By incorporating the magnetic head inside the cavity section, the magnetic head can be protected, thereby reducing a possibility of head crash of the magnetic head due to its contact with dust or a projecting object existing on the surface of the recording medium. Further, by disposing the magnetic head substantially in the center of the slider, it can be avoided that the direction of an air stream at the center of the slider varies depending on an instantaneous position in a radial direction of the recording medium, thereby providing stable floating characteristics of the floating type magnetic head device and improving accuracy of recording.

REFERENCES:
patent: 3670112 (1972-01-01), Ruszczyk et al.
patent: 4814907 (1989-03-01), Goor
patent: 5012366 (1991-04-01), Ohkita et al.
Tanaka et al., "Measurements of Transient Motion of Magnetic Disk Slider", IEEE Transactions on Magnetics, vol. MAG-20, No. 5, Sep. 1984, pp. 924-926.

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