发明名称 |
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To reduce meniscus attractive force while preventing writing in an adjacent track in a discrete track medium and a patterned medium. SOLUTION: A magnetic recording medium and a magnetic disk device excellent in high density recording and high reliability are provided by forming a magnetic layer of a land part and a patterned part of the discrete track medium and the patterned medium in a cylindrical shell shape and a spherical shell shape having fixed film thickness and changing a height of a cylindrical shell shape protrusion and a height of a spherical shell shape protrusion from 5 nm to 30 nm according to a radial position. COPYRIGHT: (C)2008,JPO&INPIT
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申请公布号 |
JP2008052850(A) |
申请公布日期 |
2008.03.06 |
申请号 |
JP20060229709 |
申请日期 |
2006.08.25 |
申请人 |
HITACHI LTD |
发明人 |
TSUCHIYAMA RYUJI;MOCHIZUKI MASABUMI;ONO KYOSUKE;TSUCHIYA HIROKO;IKEGAME HIROSHI |
分类号 |
G11B5/65;G11B5/72;G11B5/82 |
主分类号 |
G11B5/65 |
代理机构 |
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主权项 |
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地址 |
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