Magnetic recording and reproducing device

Dynamic magnetic information storage or retrieval – Record medium – Tape

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Details

360110, 360119, G11B 578, G11B 512, G11B 525

Patent

active

042518423

ABSTRACT:
A magnetic recording and reproducing device using a double-layered magnetic recording medium having a first layer with an anisotropy perpendicular to the medium plane and having a second layer with a lower coercive force than the first layer. A single pole magnetic head is arranged so as to magnetize the recording medium in a direction perpendicular to the recording medium plane.

REFERENCES:
patent: 3052567 (1962-09-01), Gabor et al.
patent: 3185775 (1965-05-01), Camras
patent: 3438010 (1969-04-01), Fuller
patent: 4075384 (1978-02-01), Suzuki

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