发明名称 |
Magnetic recording medium and process for the preparation thereof. |
摘要 |
<p>A novel magnetic recording medium is disclosed which comprises a non-magnetic support having thereon at least three magnetic layers each layer of which containing a ferromagnetic powder dispersed in a binder, wherein the outermost magnetic layer arranged farthest from the support has a dry thickness of 1 mu m or less, and the at least three magnetic layers each exhibit coercive force Hc (Oe) satisfying the following relationships: <MATH> wherein H1 represents Hc of the outermost magnetic layer; Hn represents Hc of the magnetic layer which is the n-th layer from the outermost magnetic layer and arranged between the outermost layer and the non-magnetic support; and Dn represents the distance ( mu m) from the top surface of the outermost magnetic layer to the top surface of the n-th layer. A novel process for the preparation of the magnetic recording medium is also disclosed.</p> |
申请公布号 |
EP0454139(A2) |
申请公布日期 |
1991.10.30 |
申请号 |
EP19910106731 |
申请日期 |
1991.04.25 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
SAITO, SHINJI;CHINO, NAOYOSHI |
分类号 |
C09D5/23;C09D7/12;G11B5/716;G11B5/842 |
主分类号 |
C09D5/23 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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