发明名称 |
Magnetic pattern forming method, magnetic pattern forming apparatus, magnetic disk, and magnetic recording apparatus |
摘要 |
A magnetic pattern forming apparatus, which is designed to form a desired magnetic pattern on a magnetic disk having a magnetic layer on a substrate, is made up of a mask having a pattern identical or similar to the desired magnetic pattern, a projection optical system for exposing the magnetic disk to a spot-like energy beam coming through the mask to heat the magnetic layer for projecting the mask pattern to the magnetic disk at a one-to-one ratio or a predetermined reduction ratio, a magnetic field applying device for applying an external magnetic field to the magnetic disk, a control unit for conducting scanning with the spot-like energy beam with respect to the magnetic disk and the mask in their radial directions while rotating the magnetic disk and the mask.
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申请公布号 |
US2005083598(A1) |
申请公布日期 |
2005.04.21 |
申请号 |
US20040980497 |
申请日期 |
2004.11.03 |
申请人 |
SEO YUZO;IKEDA HIROYUKI;KURIWADA TAKESHI;KURIYAMA TOSHIHIKO |
发明人 |
SEO YUZO;IKEDA HIROYUKI;KURIWADA TAKESHI;KURIYAMA TOSHIHIKO |
分类号 |
G11B11/10;G11B5/00;G11B5/012;G11B5/02;G11B5/55;G11B5/596;G11B5/82;G11B5/84;G11B5/855;G11B13/04;(IPC1-7):G11B11/00 |
主分类号 |
G11B11/10 |
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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