发明名称 |
MAGNETIC MEDIUM HAVING AN ARTIFICIAL PATTERN STRUCTURE USING A GRADIENT OF A MAGNETIZATION REVERSAL FIELD AND A METHOD OF USE THEREOF |
摘要 |
To avoid the occurrence of a recording error by suppressing the influence that a magneto-static interaction acting between the pattern dots exerts on a recording process and expand a margin for recording synchronization timing lag or tracking misregistration on the pattern dot. Each pattern dot has a structure in which a plurality of parts having different magnetization reversal fields are bonded with exchange interaction in the in-plane direction of a medium, substrate. The positional relationship between the parts having different magnetization reversal Fields is substantially coincident between the adjacent pattern dots, which are arranged to have a gradient of magnetization reversal field in a track direction or track transverse direction. Further, the recording is performed by adapting a gradient of recording magnetic field to the gradient of magnetization reversal field. Other methods and systems are described as well.
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申请公布号 |
US2010142084(A1) |
申请公布日期 |
2010.06.10 |
申请号 |
US20090630728 |
申请日期 |
2009.12.03 |
申请人 |
NEMOTO HIROAKI;SUZUKI HIROYUKI;SUZUKI MASAE;HARA MIKI;SUZUKI YOSHIO |
发明人 |
NEMOTO HIROAKI;SUZUKI HIROYUKI;SUZUKI MASAE;HARA MIKI;SUZUKI YOSHIO |
分类号 |
G11B5/596;G11B5/82 |
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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