MAGNETIC RECORDING MEDIUM

MAGNETIC RECORDING MEDIUM

PURPOSE:To permit suppression of crosstalk noise by bleeding of a magnetic flux to a low level by disposing a magnetic shielding zone between magnetic material tracks adjacent to each other in the direction orthogonal with a magnetic pole direction where information is recorded. CONSTITUTION:A sputt...

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Hauptverfasser: MATSUOKA SHINYA, SHIROKURA TAKAAKI, SANO MAKOTO
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator MATSUOKA SHINYA
SHIROKURA TAKAAKI
SANO MAKOTO
description PURPOSE:To permit suppression of crosstalk noise by bleeding of a magnetic flux to a low level by disposing a magnetic shielding zone between magnetic material tracks adjacent to each other in the direction orthogonal with a magnetic pole direction where information is recorded. CONSTITUTION:A sputtered Cr film 3 is formed on the surface of an Ni-P plating film 2 of an Al alloy substrate 1 and the magnetic material tracks 5 are formed on the surface of the film 3. A CrO2 film 4 is formed on a part of the surface of the film 3 and the magnetic shielding zone 6 is formed thereto. The shielding zone 6 has the axis (b) of easy magnetization orthogonal with magnetic pole direction (a) where the information is recorded and since said zone has the function to surely prevent the crosstalk by the bleeding of the magnetic flux between the magnetic material tracks 5 and 5 adjacent to each other in the direction orthogonal with the magnetic pole direction, the crosstalk noise by the bleeding is extremely decreased.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title MAGNETIC RECORDING MEDIUM
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