发明授权
- 专利标题： Magnetic recording medium, magnetic recording apparatus and magnetic recording method
- 专利标题（中）： 磁记录介质，磁记录装置和磁记录方法
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申请号： US10946011申请日： 2004-09-22
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公开(公告)号： US07330335B2公开(公告)日： 2008-02-12
- 发明人: Akira Kikitsu , Tadashi Kai , Junichi Akiyama
- 申请人： Akira Kikitsu , Tadashi Kai , Junichi Akiyama
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2001-197771 20010629
- 主分类号： G11B5/127
- IPC分类号： G11B5/127
摘要：
A magnetic recording medium capable of alleviating thermal fluctuation and improving the recording density includes a functional layer (12) containing a magnetic material, and a recording layer (11) overlying the functional layer and containing a magnetic material. The recording layer contains a plurality of magnetic grains (51) and a nonmagnetic material (52) existing among the magnetic grains, and the functional layer and the recording layer exert exchange coupling interaction in a direction making a substantially orthogonal relation with each other at the room temperature.
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