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Magnetic recording medium and recording/reproducing apparatus therefor

A technology for a magnetic recording medium and a reproducing device, which is applied in the directions of magnetic recording, information recording on a magnetic disk, and arrangement/installation of recording heads, etc. The effect of magnetic flux

Inactive Publication Date: 2009-09-30
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In addition, in the technology (for example, Patent Document 2) in which the temperature of the recording unit is made constant by making the thermal conductivity of the nonmagnetic region lower than that of the recording unit, and then recording is performed stably by applying a magnetic field (for example, Patent Document 2), A material selected to provide a clear difference between the thermal conductivity of the non-magnetic region adjacent to the magnetic portion and the thermal conductivity of the recording unit as the magnetic portion

Method used

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  • Magnetic recording medium and recording/reproducing apparatus therefor
  • Magnetic recording medium and recording/reproducing apparatus therefor
  • Magnetic recording medium and recording/reproducing apparatus therefor

Examples

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no. 1 approach

[0119] Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. This embodiment relates to a magnetic recording medium, figure 1 It is a figure showing the state where a magnetic recording medium is arrange|positioned in a recording and reproducing apparatus, It is a figure which schematically shows the several recording tracks formed in a magnetic recording medium, the magnetic part formed in a recording track, and the slider provided with a magnetic head. A partially enlarged floor plan of the positional relationship, figure 1 The lower part becomes the center of the concentric circle of the magnetic recording medium, and the centerlines 107, 108, 109 of each recording track described later actually become figure 1 Concentric circular arcs that protrude above, that is, the centerline 107 becomes the outer side and the centerline 109 becomes the inner side.

[0120] The slider 96 maintains a slight gap by passing g...

no. 2 approach

[0148] Next, a second embodiment of the present invention will be described with reference to the drawings. In addition, this embodiment corresponds to a configuration example of the above-mentioned first embodiment, and the same reference numerals are assigned to the same parts as those of the first embodiment, and description thereof will be omitted.

[0149] image 3 It is a figure showing the state in which the magnetic recording medium of this embodiment is arrange|positioned in the recording and reproducing apparatus, and is a side cross-sectional view showing the relationship between a magnetic recording medium and the slider equipped with a magnetic head etc. FIG.

[0150] Such as image 3 As shown, the magnetic recording medium 200 for recording information includes: a substrate 120; The protective film 126 is formed on the near-field light generating film 125; the soft magnetic film 121 is formed on the protective film 126 and is used to pass the magnetic flux 102;...

no. 3 approach

[0161] Next, a third embodiment of the present invention will be described with reference to the drawings. In addition, this embodiment corresponds to a configuration example of the above-mentioned first embodiment, and the same reference numerals are assigned to the same parts as those of the first embodiment or the second embodiment, and description thereof will be omitted.

[0162] Figure 4 It is a diagram showing a state in which the magnetic recording medium of this embodiment is arranged in a recording and reproducing apparatus, and is a partially enlarged side sectional view showing a relationship between the magnetic recording medium and a slider including a magnetic head and the like.

[0163] The magnetic recording medium 300 of this embodiment is as Figure 4 shown, in addition to the above figure 2 In addition to the magnetic film for magnetic recording formed on one surface of the magnetic recording medium 100 of the first embodiment shown, an optical recordin...

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Abstract

The present invention relates to a magnetic recording medium, performing patterning to tiny size of magnetic area correspondingly to the inclined slide rod for augmenting storage capacity. A magnetic recording medium on which a plurality of concentric recording tracks is formed, the recording tracks including a plurality of closed shaped magnetic parts formed to be symmetrical with respect to two orthogonal axes in shape, the magnetic recording medium being rotated by a recording and reproducing apparatus provided with a slider including a recording and reproducing head to record or reproduce a magnetic recording, wherein when the recording and reproducing head which is moved with movement of a slider to record data on or reproduce data from the recording tracks is inclined by a predetermined angle with respect to a tangent line of concentric circles of the recording tracks, the slider moving in a radial direction of the concentric circles of the recording tracks, one of the two orthogonal axes of the magnetic parts is perpendicular to the recording and reproducing head.

Description

technical field [0001] The present invention relates to a magnetic recording medium with increased storage capacity, and a recording and reproducing device for taking out a magnetic recording medium among a plurality of magnetic recording media stored in a cartridge, and recording or reproducing data. Background technique [0002] With the configuration of the communication environment and the development of electronic technology, the amount of information processed by information-related devices has increased significantly. In response to such environmental changes, the functions and processing capabilities of information-related devices such as personal computers have also been dramatically improved. In order to cope with the increase in the amount of information, increasing the capacity of a recording medium storing information is one of the important issues. [0003] In order to solve this problem, a technique has been disclosed in which recording cells separated from e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/82G11B5/60G11B5/667G11B17/22G11B5/012
CPCB82Y10/00G11B5/4813G11B2005/0021G11B7/1387G11B7/0079G11B7/28G11B2005/001G11B7/24038G11B7/08594G11B5/743
Inventor 吉田隆木村胜彦
Owner HITACHI LTD
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