Invention Grant
- Patent Title: Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head incuding pole layer and two shields sandwiching the pole layer
- Patent Title (中): 用于垂直磁记录的磁头及其制造方法，磁头插入极层和两个屏蔽夹住极层
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Application No.: US11783232Application Date: 2007-04-06
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Publication No.: US07995308B2Publication Date: 2011-08-09
- Inventor: Koichi Otani , Naoto Matono , Tatsuya Harada , Kenji Yokoyama , Hidetaka Kawano
- Applicant: Koichi Otani , Naoto Matono , Tatsuya Harada , Kenji Yokoyama , Hidetaka Kawano
- Applicant Address: JP Tokyo CN Hong Kong
- Assignee: TDK Corporation,SAE Magnetics (H.K.) Ltd.
- Current Assignee: TDK Corporation,SAE Magnetics (H.K.) Ltd.
- Current Assignee Address: JP Tokyo CN Hong Kong
- Agency: Oliff & Berridge, PLC
- Main IPC: G11B5/31
- IPC: G11B5/31
Abstract:
A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The first shield has a first layer and a second layer disposed between the first layer and the first gap layer.
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