Magnetic head with a controlled gap width

Details Magnetic head with a controlled gap width Magnetic head with a controlled gap width

1988-02-16

1990-09-25

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

G11B 522

Patent

active

049597418

ABSTRACT:
A magnetic recording playback head and a method for producing the same having an improved wear resistance and resistance to chipping as well as an improved production rate. The head is formed from a pair of magnetic cores joined through a gap-forming film. The lateral sides of the gap are flat, except for the surface repair to contact the tape, which have a width equal to the track width. The flat sides are coated with a nonmagnetic thin hard film of a material such as alumina or titanium nitride.

REFERENCES:
IBM Technical Disclosure Bulletin, vol. 20, No. 2, Jul. 1977.
Japanese Patent Abstracts, vol. 9, No. 72.
Japanese Patent Abstracts, vol. 6, No. 41.
Japanese Patent Abstracts, vol. 10, No. 64.

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