Magnetic recording method and magnetic head

Details Magnetic recording method and magnetic head Magnetic recording method and magnetic head

1987-08-31

1990-05-22

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Recording or reproducing plural information signals on the...

Head gap azimuth multiplex

360 68, G11B 502

Patent

active

049281860

ABSTRACT:
In a magnetic recording/reproducing apparatus, desired information is recorded on a main track of a magnetic disk using a magnetic head. Other information is recorded on a guard band which is adjacent to the main track using another magnetic head. Each of the magnetic heads has a magnetic layer, an insulator layer, and a conductor layer formed of thin films. The heads are adjacent to each other in the widthwise direction of the track with a predetermined relative azimuth angle between them in which is greater than 0.degree. and no greater than 45.degree.. The magnetic head for the main track is applied with an optimum recording current. The magnetic head for the guard band is applied with a recording current so that its magnetomotive force is within the range of 40% to 80% of the magnetomotive force of the magnetic head for the main track.

REFERENCES:
patent: 3611417 (1971-10-01), Souter et al.
patent: 4318146 (1982-03-01), Ike et al.
patent: 4533961 (1985-08-01), Shibata et al.
patent: 4758903 (1988-07-01), Noguchi et al.

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