发明名称 |
MAGNETIC RECORDING MEDIUM, MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic recording medium wherein particle sizes of magnetic crystal particles are made fine without disturbing crystallinity and orientation of the magnetic crystal particles and which has satisfactory SNR characteristics and can perform high density recording and to provide a magnetic recording device using the same. SOLUTION: The magnetic recording medium 62 is provided with a substrate 11, base layers 13 and 14 formed on the substrate 11 and a magnetic recording layer 15 having the magnetic crystal particles and a boundary region enclosing the magnetic crystal particles . The boundary region comprises an oxide of Ti, the ratio of the substance quantity of the oxide of Ti in the magnetic recording layer 15 is 5 to 15 mol% and at least TiO and/or Ti<SB>2</SB>O<SB>3</SB>is contained as the oxide of Ti. COPYRIGHT: (C)2005,JPO&NCIPI
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申请公布号 |
JP2005196813(A) |
申请公布日期 |
2005.07.21 |
申请号 |
JP20030434826 |
申请日期 |
2003.12.26 |
申请人 |
TOSHIBA CORP;SHOWA DENKO KK |
发明人 |
MAEDA TOMOYUKI;OIKAWA SOICHI;IWASAKI TAKAYUKI;NAKAMURA FUTOSHI;SAKAI HIROSHI;SHIMIZU KENJI;SAKAWAKI AKIRA |
分类号 |
G11B5/65;G11B5/64;G11B5/712;G11B5/73;G11B5/738;G11B5/84;G11B5/85;G11B5/851;(IPC1-7):G11B5/65 |
主分类号 |
G11B5/65 |
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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