Magnetic disk device including a slider provided with a solid pr

Details Magnetic disk device including a slider provided with a solid pr Magnetic disk device including a slider provided with a solid pr

1992-01-13

1993-03-30

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360103, 360122, 360105, G11B 548

Patent

active

051989344

ABSTRACT:
A slider of a magnetic disk device has a main body and a protecting layer coated on the main body. The protecting layer has first flat surface which faces the magnetic recording surface of the rotatable disk and which extends in a tangential direction of the disk when the slider is located adjacent to the magnetic recording surface of the disk. The contact region of the first surface is in contact with the magnetic recording surface of the rotatable disk. Thus, a frictional force produced between the magnetic recording surface and the first flat surface is reduced, and the damage to the magnetic recording surface can be prevented. According to the present invention, the damage to the magnetic recording surface of the disk can be prevented, and the variation in distance between the magnetic recording surface and the magnetic head can be remarkably reduced. As a result, the recording density of data recorded on the magnetic disk can be increased.

REFERENCES:
patent: 4130847 (1978-12-01), Head et al.
patent: 4327387 (1982-04-01), Plotto
patent: 4796126 (1989-01-01), Tsuchiya et al.
patent: 4811142 (1989-03-01), Nakashima et al.
patent: 4901185 (1990-02-01), Kubo et al.
patent: 5083365 (1992-01-01), Matsumoto
IBM Technical Disclosure Bulletin, vol. 20 No. 3, Aug. 1977 Trirail Slider With Low-Profile Center Rail, McWhinney.

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