Invention Grant
- Patent Title: Perpendicular magnetic recording head
- Patent Title (中): 垂直磁记录头
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Application No.: US12038294Application Date: 2008-02-27
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Publication No.: US07990654B2Publication Date: 2011-08-02
- Inventor: Hisayuki Yazawa , Takahiro Taoka , Hiroshi Kameda
- Applicant: Hisayuki Yazawa , Takahiro Taoka , Hiroshi Kameda
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2007-091519 20070330; JP2007-142316 20070529
- Main IPC: G11B5/31
- IPC: G11B5/31

Abstract:
A perpendicular magnetic recording head includes a main magnetic pole layer and an auxiliary yoke layer that overlaps the main magnetic pole layer as viewed in a top view and is magnetically coupled to the main magnetic pole layer. The main magnetic pole layer includes a pole straight part exposed to an opposing surface opposite a recording medium, and a flared part that extends from the pole straight part in a height direction, the flared part broadening in a track width direction as the flared part extends in the height direction. The auxiliary yoke layer includes a flared part that extends from the recording medium-opposing surface, the flared part broadening in the track width direction as the flared part extends in the height direction. The flared part of the auxiliary yoke layer is disposed at a position located closer to the rear side in the height direction than the flared part of the main magnetic pole layer. The flared part of the main magnetic pole layer is formed at a flare angle greater than a flare angle of the auxiliary yoke layer.
Public/Granted literature
- US20080239569A1 PERPENDICULAR MAGNETIC RECORDING HEAD Public/Granted day:2008-10-02
Information query
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