发明名称 MAGNETIC RECORDING MEDIUM AND ITS MANUFACTURING METHOD
摘要 PROBLEM TO BE SOLVED: To provide a magnetic recording medium excellent in stiffness, surface smoothness of a magnetic layer and electromagnetic conversion characteristics, and a method for manufacturing the magnetic recording medium. SOLUTION: This magnetic recording medium 1 consists of a nonmagnetic support 2, a nonmagnetic layer 3 formed by applying a nonmagnetic coating material containing nonmagnetic powder and a binder onto the support 2 and the magnetic layer 4 formed by applying a magnetic coating material containing magnetic powder and another binder onto the layer 3. The nonmagnetic powder is acicular and has >=0.2μm to <=0.4μm average length of the major axis. The binder contained in the layer 3 contains at least one resin having <=40 deg.C glass transition temperature.
申请公布号 JP2001344739(A) 申请公布日期 2001.12.14
申请号 JP20000160975 申请日期 2000.05.30
申请人 SONY CORP 发明人 SASAKI TARO
分类号 C01G49/06;B22F9/22;G11B5/738;G11B5/842;(IPC1-7):G11B5/738 主分类号 C01G49/06
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