发明授权
- 专利标题: Perpendicular magnetic recording head
- 专利标题(中): 垂直磁记录头
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申请号: US12124217申请日: 2008-05-21
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公开(公告)号: US08064164B2公开(公告)日: 2011-11-22
- 发明人: Tomohiro Yamashita , Hiroshi Kameda , Katsuhiko Otomo
- 申请人: Tomohiro Yamashita , Hiroshi Kameda , Katsuhiko Otomo
- 申请人地址: JP Tokyo
- 专利权人: TDK Corporation
- 当前专利权人: TDK Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff & Berridge, PLC
- 优先权: JPP2007-146523 20070601
- 主分类号: G11B5/127
- IPC分类号: G11B5/127
摘要:
In a perpendicular magnetic recording head comprising a main magnetic pole layer and a return yoke layer which have respective front end faces exposed at a surface opposing a recording medium and are laminated with a nonmagnetic material layer interposed therebetween on the medium-opposing surface, an end magnetization control layer for generating an exchange-coupling field is provided on the upper or lower side of both end parts in a track width direction of the return yoke layer. The exchange-coupling field fixes magnetization in the end parts to the track width direction.
公开/授权文献
- US20080297951A1 PERPENDICULAR MAGNETIC RECORDING HEAD 公开/授权日:2008-12-04
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