Magnetic core for flying-type composite magnetic head

Details Magnetic core for flying-type composite magnetic head Magnetic core for flying-type composite magnetic head

1989-03-27

1991-03-12

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360119, 360125, G11B 5235

Patent

active

049997262

ABSTRACT:
A magnetic core for a flying-type composite magnetic head, including a pair of core pieces, a glass portion for bonding the core pieces, and a thin magnetic metal layer of Fe-Al-Si alloys formed on at least one of opposing surfaces of the core pieces. The thin magnetic metal layer extends by 10 .mu.m or more from an apex of a magnetic gap defined by the core pieces and has an inner end existing by 15 .mu.m or more inside an inner end of the bonding glass portion.

REFERENCES:
patent: 4768118 (1988-08-01), Kuriyama
patent: 4794483 (1988-12-01), Naitoh et al.
patent: 4796133 (1989-01-01), Kuriyama
patent: 4821406 (1989-04-01), Ota
patent: 4854035 (1989-08-01), Gukkenberger et al.

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