Method of manufacturing a composite type magnetic head

Details Method of manufacturing a composite type magnetic head Method of manufacturing a composite type magnetic head

1985-10-28

1987-07-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Gap spacer

360122, 29603, G11B 523, G11B 5127, G11B 5187

Patent

active

046822569

ABSTRACT:
A composite type magnetic head comprises first and second magnetic head core halves made of a magnetic ferrite, a gap member interposed between the first and second magnetic head core halves, a first narrowed part which is formed on the first magnetic head core half and is narrowed toward the gap member by being defined by first and second curved depressions, a second narrowed part which is formed on the second magnetic head core half and is narrowed toward the gap member by being defined by third and fourth curved depressions, a first film made of a magnetic metal material formed on a surface of the first curved depression, and a second film made of the magnetic metal material formed on a surface of the third curved depression. The first and second films have film thicknesses equal to a desired track width at a part where the first and second films make contact with the gap member and form a gap of the magnetic head.

REFERENCES:
patent: 4361860 (1982-11-01), Nozawa
patent: 4559572 (1985-12-01), Kumasaka et al.

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