发明名称 Vertical magnetic recording head device with the return yoke layer having thick portions
摘要 A vertical magnetic recording head device includes: a magnetic layer that includes a main magnetic pole exposed from a surface facing a recording medium; a return yoke layer that is provided on the magnetic layer with a non-magnetic layer interposed therebetween; and coil layers that apply a recording magnetic field to the magnetic layer and the return yoke layer. In the vertical magnetic recording head device, the return yoke layer includes thick portions that extend in a height direction in edge regions arranged in a track width direction.
申请公布号 US8018680(B2) 申请公布日期 2011.09.13
申请号 US20070947148 申请日期 2007.11.29
申请人 TDK CORPORATION 发明人 TOMA YUSUKE;KAMEDA HIROSHI;KOBAYASHI KIYOSHI;TAKAHASHI TORU
分类号 G11B5/147;G11B5/39 主分类号 G11B5/147
代理机构 代理人
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