发明名称 |
Magnetic recording media and method for making them. |
摘要 |
<p>A magnetic recording medium is used with a magnetic recording system in which a baseband recording signal is recorded on a magnetic recording medium and a surface-band recording signal with the effective recording depth being smaller than that of the baseband recording signal is then recorded thereon in superimposed relation. The non-magnetic substrate includes thereon a first magnetic layer and a second magnetic layer on that order, said second magnetic layer having a thickness substantially equal to the effective recording depth of said surface-band recording signal and a coercivity higher than that of said first magnetic layer.</p> |
申请公布号 |
EP0409217(A2) |
申请公布日期 |
1991.01.23 |
申请号 |
EP19900113800 |
申请日期 |
1990.07.18 |
申请人 |
TDK CORPORATION |
发明人 |
YAMAKAWA, YOSHISUKE, C/O TDK CORPORATION;HONJO, YOSHIHIRO, C/O TDK CORPORATION;KAWAHARA, HIROSHI, C/O TDK CORPORATION;HAYAMA, MASASHI, C/O TDK CORPORATION |
分类号 |
C09D5/23;C09D127/04;C09D127/06;C09D175/00;C09D175/04;G11B5/008;G11B5/02;G11B5/716;G11B5/73;G11B5/78;G11B5/84;G11B5/842;H04N5/782 |
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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