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1. 发明授权

US08054580B2 Perpendicular recording magnetic head 有权
标题翻译：垂直记录磁头
公开(公告)号：US08054580B2
公开(公告)日：2011-11-08
申请号：US12079223
申请日：2008-03-24
申请人： Wataru Kimura , Tadayuki Iwakura , Yohji Marujama
发明人： Wataru Kimura , Tadayuki Iwakura , Yohji Marujama
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3116 , G11B5/3146
摘要： Embodiments of the present invention provide a perpendicular recording magnetic head having a narrow track width, high recording magnetic field intensity, and a good recording magnetic field distribution. According to one embodiment, a perpendicular recording magnetic head includes a read section and a write section. The write section includes a main magnetic pole layer, a lower sub magnetic pole layer, an upper sub magnetic pole layer, a pedestal magnetic layer, and a coil conductor generating a magnetic flux in the main magnetic pole layer. The write section further includes lower and upper auxiliary magnetic pole layers disposed on a leading side and a trailing side, respectively, relative to a medium moving direction, adjacent to the main magnetic pole layer. The lower and upper auxiliary magnetic pole layers are retracted from an air bearing surface. The upper auxiliary magnetic pole layer is retracted from the air bearing surface less than the lower auxiliary magnetic pole layer.
摘要翻译：本发明的实施例提供一种具有窄轨道宽度，高记录磁场强度和良好记录磁场分布的垂直记录磁头。根据一个实施例，垂直记录磁头包括读取部分和写入部分。写入部分包括主磁极层，下部子磁极层，上部子磁极层，基座磁性层和在主磁极层中产生磁通的线圈导体。写入部分还包括相对于主磁极层相对于介质移动方向分别设置在前侧和后侧的下和上辅助磁极层。下辅助磁极层和上辅助磁极层从空气轴承表面缩回。上辅助磁极层从空气轴承表面缩回小于下辅助磁极层。

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