发明名称 |
MAGNETIC RECORDING MEDIUM. |
摘要 |
<p>A magnetic layer is formed on a non-magnetic substrate through a non-ferromagnetic layer. This non-ferromagnetic layer contains spherical, non-ferromagnetic fine granular iron oxide. Alternatively, it contains non-structural carbon having a mean grain size of 10 to 60 nm, a specific surface area of up to 150 cm<2>/g by a BET method and a DBP oil absorption quantity of up to 100 ml/100 g in addition to, or in place of, this iron oxide. In this way, a magnetic recording medium having excellent surface property and electromagnetic conversion characteristics can be accomplished.</p> |
申请公布号 |
EP0623918(A1) |
申请公布日期 |
1994.11.09 |
申请号 |
EP19930921085 |
申请日期 |
1993.09.29 |
申请人 |
TDK CORPORATION |
发明人 |
IKARASHI, TSUNEHIKO TDK CORPORATION;TAKASUGI, YASUFUMI TDK CORPORATION;AOYAMA, TSUTOMU TDK CORPORATION;SAITOH, AKIRA TDK CORPORATION;MOTEGI, YUKO TDK CORPORATION;KUWAJIMA, TAKAYOSHI TDK CORPORATION |
分类号 |
G11B5/738;(IPC1-7):G11B5/704 |
主分类号 |
G11B5/738 |
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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