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Magnetism transfering device

A transfer device and magnetic technology, which is applied in magnetic recording, data recording, instruments, etc., can solve the problems of main carrier or slave medium damage, master carrier or slave medium direction deviation, and inability to perform magnetic transfer, etc.

Inactive Publication Date: 2003-08-27
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the master carrier or slave medium is separated from the decompression suction part, and thus magnetic transfer will not be possible
or the master carrier or slave media may be damaged so that it cannot be used
Even if the above elements are not separated, the master carrier or the slave medium may be misaligned so that the transfer signal cannot be recorded to the desired position

Method used

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  • Magnetism transfering device
  • Magnetism transfering device
  • Magnetism transfering device

Examples

Experimental program
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Embodiment Construction

[0015] The magnetic transfer device of the present invention will be described below with reference to the accompanying drawings. figure 1 is a perspective view of the main part, illustrating the transfer state of the magnetic transfer device according to the embodiment of the present invention. figure 2 yes figure 1 A cross-sectional view of the holder shown, image 3 is a plan view illustrating the main part of the inner surface of the anchor. Every drawing is schematic and not necessarily to scale.

[0016] Please refer to figure 1 , The magnetic transfer device 1 includes a holder 5, the holder 5 includes a cylindrical base chamber protective cover 11 at the bottom of the holder 5, and a compression chamber protective cover 12 at its upper part. Such as figure 2 As shown, in the inner space 6 of the fixture 5 formed by the sealing of the above two chamber protective sleeves, the lower and upper main carriers 3, 4 are placed on both sides of the slave medium 2, the s...

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Abstract

Disclosed is a magnetic transfer apparatus including a holder for accommodating a slave medium subjected to transfer of information and master carriers bearing an information to be transferred which are to be kept in the state of being sucked to pressure-reducing suction parts of an inner surface of an inner space of the holder for mutual close contact of surfaces of the slave medium and the master carriers, a vacuum suction unit for providing a vacuum condition of the inner space, and a magnetic field application unit for applying a transfer magnetic field to the holder, wherein at the time of performing magnetic transfer, pressure of the inner space of the holder by the vacuum suction unit is set to be higher by 1-50 kPa than suction pressure of the pressure-reducing suction parts, whereby before mutual contact of the slave medium and the master carriers, a suction state of the master carriers is kept as it is, thus preventing the master carriers or the slave medium from being undesirably separated or misaligned and increasing the extent of close contact therebetween. As a result, good magnetic transfer is performed.

Description

technical field [0001] The invention relates to a magnetic transfer device for magnetic transfer from a master carrier carrying information to a slave medium. Background technique [0002] Generally, a master carrier (pattern body) for magnetic transfer includes transfer patterns, such as servo signals with surface irregularities or embedded structures, and the surface layer has at least one soft magnetic layer. Such a master carrier is in close contact with a slave medium having a magnetic recording portion, and a magnetic field for transfer is applied, so that a magnetic pattern corresponding to information carried on the master carrier is transferred and recorded on the slave medium. This technique is disclosed in Japanese Patent Laid-Open Publication No. Sho. 63-183623, No. Hei. 10-40544, and No. 10-269566, Japanese Patent Laid-Open Publication No. 2001-256644, and the like. [0003] When the slave medium is a disk-shaped magnetic recording medium (such as a hard disk o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/86G11B23/50
CPCG11B5/865G11B23/505G11B5/86
Inventor 镰谷彰人
Owner FUJIFILM CORP