发明名称 |
Magnetic recording medium |
摘要 |
A magnetic recording medium comprises a nonmagnetic support and a magnetic recording layer provided on the support which comprises two layers including a first magnetic recording layer and a second magnetic recording layer. Each of the two magnetic recording layers contains a ferromagnetic powder having a coercive force of not less than 500 Oe dispersed therein. The first magnetic recording layer is provided on the support has a Young's modulus of 500 to 1,000 kg/mm2; and the second magnetic recording layer provided on the first magnetic recording layer has a Young's modulus of not less than 1,300 kg/mm2; and the magnetic recording layers as a whole show a Young's modulus of not less than 900 kg/mm2.
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申请公布号 |
US4857388(A) |
申请公布日期 |
1989.08.15 |
申请号 |
US19870110296 |
申请日期 |
1987.10.20 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
OGAWA, HIROSHI;TAMAI, YASUO |
分类号 |
G11B5/706;C09D5/23;C09D127/04;C09D127/06;C09D175/00;C09D175/04;G11B5/716 |
主分类号 |
G11B5/706 |
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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