Magnetic head for high density recording

Details Magnetic head for high density recording Magnetic head for high density recording

1989-05-25

1991-07-02

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360120, G11B 5147, G11B 5235

Patent

active

050290320

ABSTRACT:
A magnetic head includes first and second cores joined into a one-piece member through a nonmagnetic spacer. A DGL head has a low saturation magnetic flux density thin film disposed between the first core and the nonmagnetic spacer. An EDG head further has a high saturation magnetic flux density thin film disposed between the second core and the nonmagnetic spacer in the DGL head structure. The low saturation magnetic flux density thin film is formed of an amorphous alloy preferably having a saturation magnetic flux density of 1,500 to 3,000 G.

REFERENCES:
patent: 4535376 (1985-08-01), Nomura et al.
patent: 4646184 (1987-02-01), Goto et al.
patent: 4670807 (1987-06-01), Gorter et al.
patent: 4755899 (1988-07-01), Kobayashi et al.
patent: 4764832 (1988-08-01), Enz et al.
patent: 4805058 (1989-02-01), Takeuchi et al.
patent: 4887177 (1989-12-01), Sillen
patent: 4890378 (1990-01-01), Susuki

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