发明申请
US20070009737A1 Iron compound particles and magnetic recording medium using same
有权
铁化合物颗粒和使用其的磁记录介质
- 专利标题： Iron compound particles and magnetic recording medium using same
- 专利标题（中）： 铁化合物颗粒和使用其的磁记录介质
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申请号： US11473065申请日： 2006-06-23
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公开(公告)号： US20070009737A1公开(公告)日： 2007-01-11
- 发明人: Shinichi Konno , Toshihiko Ueyama , Kenichi Inoue , Takayuki Yoshida , Ken Inoue
- 申请人： Shinichi Konno , Toshihiko Ueyama , Kenichi Inoue , Takayuki Yoshida , Ken Inoue
- 优先权： JP2005-185919 20050627
- 主分类号： B32B9/00
- IPC分类号： B32B9/00 ; G11B5/33
摘要：
Non-magnetic powder of particles for non-magnetic lower layer applications is provided that enables a multilayer coating type magnetic recording medium having good surface smoothness to be obtained. The particles are iron compound particles having a long axis with a standard geometrical deviation, as obtained from a transmission electron microscope image, that is greater than 1.5, and a short axis with a standard geometrical deviation, as obtained from a TEM image, that is greater than 1.35. The iron compound particles may be hematite or iron oxyhydroxide.
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