| 发明名称 |
Magnetic recording medium and process of manufacturing the same. |
| 摘要 |
<p>A magnetic recording medium and a manufacturing process thereof are disclosed. The medium comprises a magnetic layer containing a binder, chromium oxide having an average particle size within the range of 0.3 to 0.5 mu m and a metal magnetic powder, wherein the binder comprises a polyurethane resin having a polar group selected from the group consisting of -SO3M, -OSO3M, -COOM, -PO(OM), and -OPO(OM)2 wherein M represents a hydrogen atom or an alkali metal.</p> |
| 申请公布号 |
EP0435315(B1) |
申请公布日期 |
1995.05.24 |
| 申请号 |
EP19900125671 |
申请日期 |
1990.12.28 |
| 申请人 |
KONICA CORPORATION |
发明人 |
MICHIHATA, ISAMU, KONICA CORPORATION;MURATA, HIDEKI, KONICA CORPORATION;TAKEDA, KATSUYUKI, KONICA CORPORATION;SEKIGUCHI, NOBUYUKI, KONICA CORPORATION;KIKUGAWA, SYOZO, KONICA CORPORATION |
| 分类号 |
G11B5/702;G11B5/708;G11B5/714;(IPC1-7):G11B5/702 |
主分类号 |
G11B5/702 |
| 代理机构 |
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