发明授权
- 专利标题： Magnetic recording medium
- 专利标题（中）： 磁记录介质
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申请号： US10402966申请日： 2003-04-01
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公开(公告)号： US06790523B2公开(公告)日： 2004-09-14
- 发明人: Kouichi Masaki , Takako Ozawa
- 申请人： Kouichi Masaki , Takako Ozawa
- 优先权： JPP.2002-101463 20020403
- 主分类号： G11B5706
- IPC分类号： G11B5706
摘要：
A magnetic recording medium comprising: a support; and at least a magnetic layer comprising a hexagonal ferrite powder and a binder, wherein the hexagonal ferrite powder is of magnetoplumbite type and has an average diameter of 15 to 35 nm and an alkaline earth element to iron ratio of 0.10 to 0.15 in terms of peak intensity ratio analyzed by electron spectroscopy for chemical analysis.
公开/授权文献
- US20030190495A1 Magnetic recording medium 公开/授权日：2003-10-09
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