Dynamic magnetic information storage or retrieval – Head – Core
Patent
1983-02-03
1987-01-13
Heintz, A. J.
Dynamic magnetic information storage or retrieval
Head
Core
360125, 360119, 360110, G11B 5147, G11B 5127, G11B 523
Patent
active
046369015
ABSTRACT:
A thin film magnetic head for performing recording and readout operations to a magnetic recording medium and a method of manufacturing the head. The magnetic head comprises a substrate, a first magnetic layer formed on the substrate, a conductor coil on the first layer and a second magnetic layer formed on the conductor coil and the first magnetic layer. The second magnetic layer is imparted with a greater thickness than the first magnetic layer to thereby strengthen the magnetic field for recording and reducing the peak shift making appearance in readout operation due to interference between successively read-out waveforms. The thin film magnetic head exhibits an improved reproduction characteristic which permits reproduction with high fidelity the magnetized locations recorded on the medium with high recording density which assures an improved recording characteristic.
REFERENCES:
patent: 4423451 (1983-12-01), Chi
patent: 4490760 (1984-12-01), Kaminaka et al.
IBM Publication No. EP-A-0012326, published 6/25/80, Anderson et al.
IBM Publication No. EP-A-0013363, published 7/23/80, Kennedy et al.
Ohura Masaki
Saito Makoto
Garcia Alfonso
Heintz A. J.
Hitachi , Ltd.
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