发明名称 |
Method for forming a magnetic pattern in a magnetic recording medium, a magnetic pattern forming device, a magnetic recording medium and a magnetic recording device |
摘要 |
A method for forming a magnetic pattern by applying a first external magnetic field to a magnetic recording medium having a magnetic layer to magnetize uniformly the magnetic layer in a predetermined direction and heating locally the magnetic layer while a second external magnetic field is applied thereto, whereby the heated portion is magnetized in the direction opposite to the predetermined direction, wherein the second external magnetic field has a pulse-like magnetic field component. The method can form a fine magnetic pattern efficiently in a medium for high density recording, and a magnetic recording medium and a magnetic recording device capable of recording with high density can be provided economically in a short time.
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申请公布号 |
US2003035235(A1) |
申请公布日期 |
2003.02.20 |
申请号 |
US20020212688 |
申请日期 |
2002.08.07 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
IKEDA HIROYUKI;SEO YUZO;ARITA YOUJI |
分类号 |
G11B5/82;G11B5/012;G11B5/02;G11B5/596;G11B5/84;G11B5/855;G11B5/86;G11B13/04;(IPC1-7):G11B5/02 |
主分类号 |
G11B5/82 |
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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