Thin film magnetic head of embodied recording and reproducing tr

Details Thin film magnetic head of embodied recording and reproducing tr Thin film magnetic head of embodied recording and reproducing tr

1990-07-30

1992-03-10

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Head

Hall effect

360126, 360119, 360122, 360125, G11B 517

Patent

active

050953974

ABSTRACT:
There is disclosed a thin film magnetic head which requires less recording current, and is capable of recording and reproducing with a high sensitivity. To achieve this magnetic head, a third yoke of a high permeability is bridged across a notched portion of a second yoke between front and back portions of the second yoke constituting part of a magnetic circuit. With this construction, the third yoke serves to extremely reduce a magnetic resistance between the front and back portions of the second yoke, so that the recording current can be smaller, thereby enhancing the recording efficiency.

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patent: 4885649 (1989-12-01), Das
patent: 4935832 (1990-06-01), Das et al.
patent: 4954920 (1990-09-01), Yamada et al.

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