发明授权
- 专利标题： Thermally assisted recording system
- 专利标题（中）： 热辅助记录系统
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申请号： US11134088申请日： 2005-05-19
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公开(公告)号： US07446969B2公开(公告)日： 2008-11-04
- 发明人: Fumiko Akagi , Masukazu Igarashi , Hideki Saga
- 申请人： Fumiko Akagi , Masukazu Igarashi , Hideki Saga
- 申请人地址： NL Amsterdam
- 专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 代理机构： Townsend and Townsend and Crew LLP
- 代理商 Darren Gold
- 优先权： JP2004-149477 20040519
- 主分类号： G11B5/02
- IPC分类号： G11B5/02
摘要：
A thermally assisted magnetic recording system is provided to achieve excellent thermal resistance and low noise. In one embodiment, a magnetic recording medium is used, in which the magnetic intergrain exchange coupling is large to let the magnetization be thermally stable by coupling the magnetic grains constituting the recording layer at room temperature (the temperature maintaining the magnetization) and reduced by heating during recording to let the recording magnetization transition slope become steep. Parameter A normalizing the slope around the coercivity of the MH-loop of the medium is 1.5≦A
公开/授权文献
- US20050259343A1 Thermally assisted recording system 公开/授权日：2005-11-24
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