| 发明名称 |
MAGNETIC RECORDING MEDIUM USING FFRROMAGNETIC METAL POWDERS |
| 摘要 |
PURPOSE:To make a master magnetic recording medium suitable for a slave tape having a coercive force higher than 600Oe by applying a magnetic layer composed majorly of special ferromagnetic metal powders and a binder. |
| 申请公布号 |
JPS5430002(A) |
申请公布日期 |
1979.03.06 |
| 申请号 |
JP19770096354 |
申请日期 |
1977.08.11 |
| 申请人 |
FUJI PHOTO FILM CO LTD |
发明人 |
AONUMA MASASHI;TAMAI YASUO;NAKAMURA SHIYOUEI;OGAWA HIROSHI |
| 分类号 |
G11B5/70;C09D5/23;C09D7/12;G11B5/86;H01F1/047;H01F1/06 |
主分类号 |
G11B5/70 |
| 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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