Magnetic transducer head having an alloy thin film of high satur

Details Magnetic transducer head having an alloy thin film of high satur Magnetic transducer head having an alloy thin film of high satur

1984-12-26

1988-07-05

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

360119, 360122, G11B 5127, G11B 523, G11B 5187

Patent

active

047558997

ABSTRACT:
A magnetic transducer head comprising a first magnetic core element and a second magnetic core element, each of the first and second core elements comprising a magnetic ferrite block and a magnetic metal thin film integrated with the magnetic ferrite block. These core elements having a first planar surface and a second planar surface. The magnetic metal thin film being provided on the second planar surface and having an edge thereof facing to the first planar surface, and the second planar surface being slantly provided with respect to said first planar surface. These core elements being bonded together to form an operating magnetic gap between the edge of the magnetic metal thin film on the first core element and the edge of the magnetic metal thin film on the second core element. The magnetic metal thin film on the first core element or the magnetic thin film on the second core element is formed in one common plane.
The magnetic metal thin film may be formed of the ferromagnetic metals including Fe--Al--Si alloys, amorphous metal alloys or permalloy. And the magnetic metal thin film having substantially uniform columnar grain structure or uniform magnetic anisotropy, over entire area of the film.

REFERENCES:
patent: 3502821 (1970-03-01), Duinker
patent: 4361860 (1982-11-01), Nozawa
patent: 4559572 (1985-12-01), Kumasaka et al.

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