发明名称 |
Magnetic recording medium and method for producing the same |
摘要 |
A magnetic recording medium which is optimum for high-density recording in which not only orientation of magnetic particles to the direction of thickness of a magnetic layer can be performed effectively but the orientation is maintained, and a method for producing such a magnetic recording medium. The method includes the steps of multiply applying a lower layer containing inorganic powder and resin, an intermediate layer containing resin and an upper layer as a magnetic layer containing needle-shaped ferromagnetic powder onto a non-magnetic support in the condition where all the layers are wet, and drying and solidifying the layers while the ferromagnetic powder contained in the upper layer is oriented at a predetermined angle with respect to the direction of thickness of the intermediate layer. In an another embodiment, only two layers are applied to the support including a non-magnetic layer and a magnetic layer.
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申请公布号 |
US5474814(A) |
申请公布日期 |
1995.12.12 |
申请号 |
US19930134617 |
申请日期 |
1993.10.12 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
KOMATSU, KAZUNORI;TOMARU, MIKIO |
分类号 |
G11B5/738;G11B5/845;(IPC1-7):B05D3/00 |
主分类号 |
G11B5/738 |
代理机构 |
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代理人 |
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地址 |
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