- 专利标题: MAGNETIC HEAD FOR PERPENDICULAR RECORDING
- 专利标题(中): 磁头记录
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申请号: US12965277申请日: 2010-12-10
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公开(公告)号: US20110141615A1公开(公告)日: 2011-06-16
- 发明人: Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
- 申请人: Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
- 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
- 优先权: JP2009-280575 20091210
- 主分类号: G11B21/02
- IPC分类号: G11B21/02 ; G11B5/33
摘要:
According to one embodiment, a magnetic head for perpendicular recording includes a main pole, a first soft magnetic film disposed on a trailing side of the main pole, and a first nonmagnetic film interposed between the main pole and the first soft magnetic film. A thickness of the main pole is increased in a depth direction from an air bearing surface using an inclination, and a thickness of the first nonmagnetic film increases in the depth direction from the air bearing surface. In another embodiment, an angle from a horizontal plane of an upper surface of the first nonmagnetic film is greater than an angle from a horizontal plane of a lower surface of the first nonmagnetic film in contact with the main pole. Other heads, methods, and systems are described according to more embodiments.
公开/授权文献
- US08537493B2 Magnetic head for perpendicular recording 公开/授权日:2013-09-17