Magnetic disk device
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorHiroshi ISOKAWA
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Abstract
According to one embodiment, among a plurality of magnetic heads, the larger the magnetic pole width of the magnetic pole of the magnetic head in the width direction of a recording track formed in a recording layer or the larger an area width of the magnetic head capable of reading the magnetic characteristics of an area of the recording layer on which magnetic recording has been carried out by means of the magnetic head, the farther is the magnetic head arranged outwardly from the vicinity of the center in the parallel arrangement direction of the magnetic disks.
Claims4
A magnetic disk device comprising:
- a plurality of magnetic disks each including a recording layer and arranged on the same axis at intervals in juxtaposition with each other;
- and
- a plurality of magnetic heads each including a magnetic pole configured to generate a recording magnetic field in a direction perpendicular to the recording layer and arranged at intervals in the parallel arrangement direction of the magnetic disks in juxtaposition with each other, wherein
- among a plurality of groups of the magnetic disks classified according to an index value indicating the overwrite characteristics of the magnetic disk, the higher the index value of each of the magnetic disks belonging to a group, the farther is the group arranged outwardly from the vicinity of the center in the parallel arrangement direction.
Dependencies are inferred from the claim text.