发明名称 |
Magnetic recording medium |
摘要 |
A magnetic recording medium comprising: a nonmagnetic support; an undercoat layer containing a compound polymerizable by radiation exposure; and a magnetic layer containing ferromagnetic powder and a binder, in this order wherein the undercoat layer has a thickness of from 0.1 to 1 mum, the binder contains a polyurethane resin having a glass transition temperature of from 100 to 200° C., the magnetic layer has a thickness of from 20 to 150 nm, and an average particle size of the ferromagnetic powder is from 20 to 60 nm.
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申请公布号 |
US7045227(B2) |
申请公布日期 |
2006.05.16 |
申请号 |
US20040804145 |
申请日期 |
2004.03.19 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
ISHIKAWA TATSUO;OHNO MIKIO |
分类号 |
G11B5/738;G11B5/70;G11B5/702;G11B5/714 |
主分类号 |
G11B5/738 |
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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