Magnetic disk apparatus having a contact angle adjustment mechan

Details Magnetic disk apparatus having a contact angle adjustment mechan Magnetic disk apparatus having a contact angle adjustment mechan

1994-08-30

1995-12-19

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

36013034, 360104, G11B 556, G11B 548

Patent

active

054774047

ABSTRACT:
A magnetic information storage device comprises a rotatable rigid magnetic disk, a driving unit for revolving the magnetic disk, a swing arm for scanning a surface of the magnetic disk generally in a radial direction, an actuator for actuating the swing arm, an elongated magnetic head fixed at a free end of the swing arm for scanning the surface of the magnetic disk generally in the radial direction in response to a swinging motion of the arm while maintaining a contact engagement with the magnetic disk, and an adjustment mechanism provided on the arm for adjusting a contact angle between the elongated magnetic head and the surface of the magnetic disk such that a reproduced signal is obtained with a maximized signal amplitude.

REFERENCES:
patent: 3879757 (1975-04-01), Elliott et al.
patent: 3939495 (1976-02-01), Nagi et al.
patent: 3975774 (1976-08-01), Helbers
patent: 4807070 (1989-02-01), Isozaki et al.
patent: 4901176 (1990-02-01), Kuzuhara
patent: 5012369 (1991-04-01), Owe et al.
patent: 5041932 (1991-08-01), Hamilton
patent: 5060099 (1991-10-01), Yaeger et al.
patent: 5255135 (1993-10-01), Itoh et al.
"A contact-type Vertical Magnetization Head Developed, Provides a Maximum Surface Recording Density of 2 GBIT/(Inch).sup.2 " Nikkei Electronics, Nov. 9, 1992, p. 62, No. 567.

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