发明授权
- 专利标题： Recording medium having multiple magnetic layers
- 专利标题（中）： 具有多个磁性层的记录介质
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申请号： US11038679申请日： 2005-01-19
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公开(公告)号： US07596058B2公开(公告)日： 2009-09-29
- 发明人: Toshio Sugimoto , Ryosaku Inamura
- 申请人： Toshio Sugimoto , Ryosaku Inamura
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Greer, Burns & Crain, Ltd.
- 优先权： JP2004-248294 20040827
- 主分类号： G11B11/00
- IPC分类号： G11B11/00
摘要：
The magnetic recording medium comprises a backing layer including a first magnetic layer, a second magnetic layer which is formed over the first magnetic layer, is ferrimagnetic and is magnetized in a direction opposite to the first magnetic layer, and a third magnetic layer formed over the second magnetic layer and magnetized in a direction opposite to the second magnetic layer; and a perpendicular magnetic recording layer for recording magnetic information formed over the backing layer. Antiferromagnetic exchange interconnection is formed between the first magnetic layer and the second magnetic layer and between the second magnetic layer and the third magnetic layer.
公开/授权文献
- US20060061909A1 Magnetic recording medium and magnetic recording method 公开/授权日：2006-03-23
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