Magnetic head with saturable gap and matrix device comprising a

Details Magnetic head with saturable gap and matrix device comprising a Magnetic head with saturable gap and matrix device comprising a

1989-10-27

1991-11-05

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Gap spacer

360120, 360126, 360110, 360123, G11B 5235, G11B 5197

Patent

active

050634674

ABSTRACT:
A magnetic head employs a gap of magnetic material between two poles. The magnetic material of the gap has a saturation value less than the saturation value of the poles. When the gap material is not saturated, the magnetic field remains contained within this gap.

REFERENCES:
patent: 3485962 (1969-12-01), Barnes
patent: 4342039 (1982-07-01), Wang
patent: 4380768 (1973-04-01), Palombo et al.
patent: 4646184 (1987-02-01), Goto et al.
patent: 4775909 (1988-10-01), Inoue et al.
patent: 4780779 (1988-10-01), Pisharody et al.
Patent Abstracts of Japan, vol. 7, No. 70, (P-185) (1215), Mar. 23, 1983, & JP-A-57 212 614, Y. Ichiyama, "Electromagnetic Head".
Patent Abstracts of Japan, vol. 9, No. 203, (P-381) (1926), Aug. 21, 1985, & JP-A-60 066 310, T. Gotou, "Magnetic Head".

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