发明名称 |
METHOD FOR MANUFACTURING PERPENDICULAR MAGNETIC RECORDING MEDIUM |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a perpendicular magnetic recording medium having a soft magnetic layer and a magnetic recording layer of a granular structure on a base body capable of easily increasing a coercive force Hc of the magnetic recording layer. Ž<P>SOLUTION: The method for manufacturing the perpendicular magnetic recording medium includes a soft magnetic layer formation process S.3 for forming the soft magnetic layer on the base body, a magnetic recording layer formation process S.6 for forming the magnetic recording layer having the granular structure by a Co magnetic material as an upper layer of the soft magnetic layer, and a heating process S.7 for heating the medium obtained by forming the magnetic recording layer in the magnetic recording layer formation process S.6 to increase the coercive force value. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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申请公布号 |
JP2010182416(A) |
申请公布日期 |
2010.08.19 |
申请号 |
JP20100120779 |
申请日期 |
2010.05.26 |
申请人 |
HOYA CORP;HOYA MAGNETICS SINGAPORE PTE LTD |
发明人 |
ONOE TAKAHIRO;UMEZAWA SADAICHIROU;TAKASU TSUTOMU;KIM KONGU |
分类号 |
G11B5/851;G11B5/65;G11B5/66;G11B5/667;G11B5/673;G11B5/73 |
主分类号 |
G11B5/851 |
代理机构 |
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