Digital magnetic head structure

Details Digital magnetic head structure Digital magnetic head structure

1986-11-20

1989-01-10

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Plural gaps

360125, 360122, 360120, 360126, 29603, G11B 5265, G11B 529, G11B 5127

Patent

active

047977671

ABSTRACT:
A method for fabricating a write-after-read magnetic head assembly employs rectangular wafers sliced from a block of abrasion-resistive material. The block is prepared, prior to slicing, with pairs of opposed slots extending inwardly from anterior and posterior surfaces. The slots are adapted to include inserts of magnetically soft material. The inserts at the anterior surface also are of high cost abrasion-resistive materials necessary for digital recording systems but represent a relatively tiny amount of such materials. Pairs of wafers are juxtaposed in a manner to form a core equivalent structure and two such wafer pairs are mounted in an assembly which defines write after read heads for two tracks in a manner to preserve aximuth and avoid feed.

REFERENCES:
patent: 3414971 (1968-12-01), Boehme
patent: 4366518 (1982-12-01), Chow et al.
patent: 4494160 (1985-01-01), Bakker
patent: 4559572 (1985-12-01), Kumasaka et al.

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