发明名称 |
Magnetic transfer master medium |
摘要 |
In the performance of a magnetic transfer utilizing a magnetic transfer master medium, the occurrence of signal omissions in the magnetic data transferred to the slave medium is prevented. By forming the protrusion portions of the uneven pattern formed on the surface of the master medium so that the width thereof in the direction of the track pitch is narrower than said track width, no depression portions that are surrounded on all four sides by protrusion portions are formed.
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申请公布号 |
US6794062(B2) |
申请公布日期 |
2004.09.21 |
申请号 |
US20020051015 |
申请日期 |
2002.01.22 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
TSUBATA HISASHI;NAGAO MAKOTO |
分类号 |
G11B5/596;G11B5/82;G11B5/86;(IPC1-7):B32B9/00;G11B5/66;G11B21/02 |
主分类号 |
G11B5/596 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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