Invention Grant
- Patent Title: Perpendicular magnetic recording head that suppresses side fringing
- Patent Title (中): 垂直磁记录头,可抑制边缘
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Application No.: US12112552Application Date: 2008-04-30
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Publication No.: US08049988B2Publication Date: 2011-11-01
- Inventor: Hiroshi Kameda , Kiyoshi Kobayashi
- Applicant: Hiroshi Kameda , Kiyoshi Kobayashi
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JPP2007-123326 20070508
- Main IPC: G11B5/31
- IPC: G11B5/31 ; G11B5/11 ; G11B5/23

Abstract:
In a perpendicular magnetic recording head including a main magnetic pole layer and a return yoke layer which are laminated with a magnetic gap layer interposed therebetween on a medium-opposing surface, and a pair of side shield layers positioned on both sides in the track width direction of the main magnetic pole layer while interposing a nonmagnetic material layer therebetween, the magnetic gap layer is formed in a partial area in the track width direction bridging the main magnetic pole layer and the pair of side shield layers. The pair of side shield layers are in contact with the return yoke layer in a remaining area where the magnetic gap layer is absent.
Public/Granted literature
- US20080278853A1 PERPENDICULAR MAGNETIC RECORDING HEAD Public/Granted day:2008-11-13
Information query
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