发明名称 |
Master disk for magnetic transfer, magnetic recording medium and magnetic recording apparatus |
摘要 |
The present invention provides a master disk for magnetic transfer which has a disk-like outer shape and in the surface of which a large number of fine magnetic layer patterns are formed, wherein the relationship between the outside diameter size d (mm) of the extreme outer circumference of the magnetic layer pattern and the master disk thickness t (mm) is given by 2.04x10<SUP>-3</SUP>xd+0.006<=t<=8.15x10<SUP>-3</SUP>xd+0.024, in order to exclude the effects of bows, strains and thickness deviations of a master disk in performing magnetic transfer and ensure that accurate transfer of magnetization patterns can be performed.
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申请公布号 |
US2006158763(A1) |
申请公布日期 |
2006.07.20 |
申请号 |
US20050312556 |
申请日期 |
2005.12.21 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
NAGAO MAKOTO;ARAKI MINORU;WAKAMATSU SATOSHI;ICHIKAWA KENJI |
分类号 |
G11B5/86 |
主分类号 |
G11B5/86 |
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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