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Magnetic recording medium

A magnetic recording and media technology, applied in the direction of magnetic recording, pattern recording carrier, data recording, etc., can solve problems such as contact, achieve the effect of reducing manufacturing cost, reducing processing cost, and reducing processing area

Inactive Publication Date: 2009-05-27
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, as shown in the figure, in this discrete track medium 51, there is a problem that the surface of the discrete track medium 51 (data recording area 53) may be contacted due to the magnetic head 71 being tilted.

Method used

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Experimental program
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Embodiment Construction

[0033] Hereinafter, preferred embodiments of the magnetic recording medium of the present invention will be described with reference to the accompanying drawings.

[0034] figure 1 The shown magnetic recording medium of discrete track type (hereinafter also referred to as "discrete track medium") 1 is an example of the magnetic recording medium of the present invention. It is configured such that the data recording area 3 , the outer area 4 and the inner area 5 are formed. At this time, the discrete track medium 1 is mounted on, for example, an HDD (not shown), and is rotated at a high speed by a motor of the HDD while aligning the magnetic head 71 (refer to the HDD) via the HDD. figure 1 ) input various recording data for magnetic recording.

[0035] Disc-shaped base 2, such as figure 1 As shown, for example, it is formed into a disk shape from glass. At this time, the outer diameter L1 of the disk-shaped base body 2 is specified to be, for example, 21.6 mm. In additi...

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Abstract

A magnetic head (71) can be prevented from being in contact with a data-recording region (3) during record reproduction. The data-recording region (3), with an annular shape, having tracks (22, 22, ..) separated from each other by coaxial grooves (21, 21, ..) is formed on at least one face of a disk-like base member (2). Grooves (23, 23, ..) capable of regulating a lift force (F) applied to the magnetic head (71) are formed in at least either an outer region (4) positioned outside the data-recording region (3) on the one face or an inner region (5) positioned inside the data-recording region (3) of the one face.

Description

technical field [0001] The present invention relates to a magnetic recording medium of discrete track type in which an annular data recording area having a plurality of tracks separated from each other by concentric or helical separation grooves is formed on one or both surfaces of a disc-shaped substrate . Background technique [0002] In recent years, as a recording medium capable of high-density recording, a plurality of data recording tracks (hereinafter, also simply referred to as "" A magnetic recording medium of discrete track type (for example, the magnetic recording medium disclosed in Japanese Patent Application Laid-Open No. 4-310621) having a data recording area of ​​"track"). Such a discrete track type magnetic recording medium (hereinafter, also referred to as "discrete track medium") is mounted on, for example, an HDD (disk drive), and then passes through a recording / reproducing magnetic head (hereinafter, also referred to as "magnetic head") Various recordi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B21/21G11B5/012G11B5/82G11B5/00G11B5/60
CPCG11B5/012G11B5/743B82Y10/00G11B2005/001G11B5/6005G11B5/82G11B5/6082
Inventor 高井充服部一博
Owner TDK CORPARATION
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