| 发明名称 |
MAGNETIC METAL POWDER, METHOD FOR PRODUCING THE SAME AND MAGNETIC RECORDING MEDIUM |
| 摘要 |
PROBLEM TO BE SOLVED: To improve the weather resistance of a magnetic recording medium and to diminish level down. SOLUTION: The shape of a magnetic Fe-base metal powder 100 used for forming the magnetic layer 2 of a magnetic recording medium 10 is specified to impart a roundness of <=1.3 and a roughness factor of <=1.25. |
| 申请公布号 |
JP2002123926(A) |
申请公布日期 |
2002.04.26 |
| 申请号 |
JP20000315362 |
申请日期 |
2000.10.16 |
| 申请人 |
SONY CORP |
发明人 |
TETSUKAWA HIROKI;MEGURO MASASHI;INOUE MAKOTO |
| 分类号 |
G11B5/714;G11B5/706;H01F1/032;H01F1/04;H01F1/047;H01F1/06;H01F1/08 |
主分类号 |
G11B5/714 |
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