发明名称 |
MAGNETIC RECORDING MEDIUM |
摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a magnetic recording medium having excellent electromagnetic conversion characteristics by improving the surface smoothness of a magnetic layer of <=1.0μm in thickness without the occurrence of pinholes and coating application stripes. SOLUTION: This magnetic recording medium is constituted by disposing an intermediate layer containing carbon black and nonmagnetic particulates exclusive of thereof on a nonmagnetic base and further, disposing the magnetic layer of <=1.0μm thickness on this intermediate layer and confining the thickness over the entire part including the nonmagnetic base, the intermediate layer and the magnetic layer to <=13μm. The surface degree of the magnetic layer is <=10 dB in the difference between the intensity at 102 mm-1 and the intensity at 205 mm-1 in frequency analysis of the non-contact surface degree.</p> |
申请公布号 |
JP2000348328(A) |
申请公布日期 |
2000.12.15 |
申请号 |
JP20000148653 |
申请日期 |
2000.05.16 |
申请人 |
HITACHI MAXELL LTD |
发明人 |
KONNO KIMIHIKO;YUASA TAKUMA;FUJIMOTO HIDEKI |
分类号 |
G11B5/70;G11B5/706;G11B5/708;G11B5/738;H01F10/16;H01F10/30;(IPC1-7):G11B5/70 |
主分类号 |
G11B5/70 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|