发明名称 |
MAGNETIC RECORDING MEDIUM |
摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic recording medium ensuring satisfactory electromagnetic transducing characteristics even when high density recording is performed. SOLUTION: A nonmagnetic layer as a lower layer 4 and a magnetic layer as an upper layer 2 are formed on a nonmagnetic substrate 1. In this double- layer coating structure, the thickness of the upper layer is regulated to <=0.5μm and acicular inorg. powder of 0.05-0.2μm major axis size is incorporated into nonmagnetic powder in the lower layer. |
申请公布号 |
JPH0935245(A) |
申请公布日期 |
1997.02.07 |
申请号 |
JP19950182852 |
申请日期 |
1995.07.19 |
申请人 |
SONY CORP |
发明人 |
SASAKI YUICHI;OKAMOTO KAZUHIRO;SASAKI KAZUO;ISHIZAKI HARUAKI |
分类号 |
C09D5/23;G11B5/73;G11B5/738;(IPC1-7):G11B5/704 |
主分类号 |
C09D5/23 |
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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