Invention Grant
- Patent Title: Perpendicular magnetic recording head
- Patent Title (中): 垂直磁记录头
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Application No.: US12124217Application Date: 2008-05-21
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Publication No.: US08064164B2Publication Date: 2011-11-22
- Inventor: Tomohiro Yamashita , Hiroshi Kameda , Katsuhiko Otomo
- Applicant: Tomohiro Yamashita , Hiroshi Kameda , Katsuhiko Otomo
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JPP2007-146523 20070601
- Main IPC: G11B5/127
- IPC: G11B5/127

Abstract:
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.
Public/Granted literature
- US20080297951A1 PERPENDICULAR MAGNETIC RECORDING HEAD Public/Granted day:2008-12-04
Information query
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