发明名称 |
PRODUCTION OF MAGNETIC RECORDING MEDIUM |
摘要 |
PROBLEM TO BE SOLVED: To produce a magnetic recording medium having a high C/N ratio in a short wavelength region as well as having satisfactory coating film strength. SOLUTION: A hardening agent is not contained in a coating material for the upper layer. The coating material for a lower layer satisfies the condition of 0.1 <=[(the weight of a hardening agent)/(the weight of a binder)]<=0.3. When the thicknesses of the upper and lower layers are represented by d1 and d2, respectively, the relations d1×2<=d2 and 0.05μm<=d1<=0.5μm are satisfied.
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申请公布号 |
JP2000123362(A) |
申请公布日期 |
2000.04.28 |
申请号 |
JP19980296694 |
申请日期 |
1998.10.19 |
申请人 |
SONY CORP |
发明人 |
YAMAGA MINORU;IMAMURA YOSHIAKI;GOTO KAZUE;MAEJIMA KATSUNORI |
分类号 |
G11B5/70;G11B5/738;G11B5/84;(IPC1-7):G11B5/84 |
主分类号 |
G11B5/70 |
代理机构 |
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地址 |
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