| 发明名称 |
Magnetic recording media and method for making them |
| 摘要 |
A magnetic recording medium records two or more signals having different frequency bands by frequency multiplex recording. The non-magnetic substrate includes a first magnetic layer and a second magnetic layer on that order, said second magnetic layer having a thickness amounting to 70% or less of the shortest recording wavelength of the signals to be recorded.
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| 申请公布号 |
US5532041(A) |
申请公布日期 |
1996.07.02 |
| 申请号 |
US19940262366 |
申请日期 |
1994.06.20 |
| 申请人 |
TDK CORPORATION |
发明人 |
HONJO, YOSHIHIRO;YAMAKAWA, YOSHISUKE;KAWAHARA, HIROSHI;TSUNODA, EIZO |
| 分类号 |
C09D5/23;C09D127/04;C09D127/06;C09D175/00;C09D175/04;G11B5/00;G11B5/716;G11B5/73;G11B5/842;(IPC1-7):G11B5/66;B32B3/10;B32B5/16 |
主分类号 |
C09D5/23 |
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