发明授权
- 专利标题: Magnetic head for perpendicular magnetic recording
- 专利标题(中): 用于垂直磁记录的磁头
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申请号: US11546902申请日: 2006-10-13
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公开(公告)号: US07940495B2公开(公告)日: 2011-05-10
- 发明人: Yoshitaka Sasaki , Hiroyuki Itoh , Shigeki Tanemura , Tatsushi Shimizu , Tatsuya Shimizu
- 申请人: Yoshitaka Sasaki , Hiroyuki Itoh , Shigeki Tanemura , Tatsushi Shimizu , Tatsuya Shimizu
- 申请人地址: US CA Milpitas CN Hong Kong
- 专利权人: Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- 当前专利权人: Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- 当前专利权人地址: US CA Milpitas CN Hong Kong
- 代理机构: Oliff & Berridge, PLC
- 主分类号: G11B5/31
- IPC分类号: G11B5/31
摘要:
A magnetic layer for writing incorporates: a pole layer having an end face located in a medium facing surface; and an upper yoke layer. A first magnetic layer for flux concentration is connected to the pole layer at a location away from the medium facing surface, and allows a magnetic flux corresponding to a magnetic field generated by a first coil to pass. A second magnetic layer for flux concentration is connected to the upper yoke layer at a location away from the medium facing surface, and allows a magnetic flux corresponding to a magnetic field generated by a second coil to pass. When seen in the direction orthogonal to the interface between the second magnetic layer and the upper yoke layer, this interface is disposed at a location that does not coincide with the interface between the first magnetic layer and the pole layer.
公开/授权文献
- US20080088971A1 Magnetic head for perpendicular magnetic recording 公开/授权日:2008-04-17
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