发明名称 PERPENDICULAR MAGNETIC RECORDING HEAD HAVING RETURN PATH LAYER AND GAP ADJUSTING LAYER
摘要 A perpendicular magnetic recording head includes a main pole layer and a return path layer that are exposed from a medium-facing surface of the recording head facing a recording medium and that face each other with a predetermined gap therebetween at the medium-facing surface. A coil layer applies a recording magnetic field to the main pole layer and the return path layer. The return path layer includes a gap adjusting layer and a main layer stacked in that order from a side facing the main pole layer. The gap adjusting layer is positioned so as to face the main pole layer and the recording medium, and is made of a magnetic material having a resistivity lower than resistivities of the main layer and the main pole layer.
申请公布号 US2007041127(A1) 申请公布日期 2007.02.22
申请号 US20060460922 申请日期 2006.07.28
申请人 ALPS ELECTRIC CO., LTD. 发明人 KAMEDA HIROSHI;YAZAWA HISAYUKI
分类号 G11B5/147 主分类号 G11B5/147
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