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2. 发明专利

JP2003036503A Perpendicular magnetic recording head and magnetic disk drive incorporating it 审中-公开
标题翻译：全磁性记录头和磁盘驱动器
公开(公告)号：JP2003036503A
公开(公告)日：2003-02-07
申请号：JP2001222407
申请日：2001-07-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KURODA ATSUKO , MOCHIZUKI MASABUMI
IPC分类号： G11B5/667 , G11B5/00 , G11B5/012 , G11B5/127 , G11B5/187 , G11B5/31 , G11B5/48
CPC分类号： G11B5/1278 , G11B5/012 , G11B5/187 , G11B5/4886 , G11B2005/0029 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： PROBLEM TO BE SOLVED: To avoid the influence of the leakage magnetic flux and improve the magnetic gradient at the boundary of the recording pit cells on the recording layer in the profile of the perpendicular magnetic components by considering the magnetic flux concentrating section and its position of a perpendicular magnetic recording head and the front and side layout of the main magnetic pole. SOLUTION: The magnetic flux concentrating section 26 of the main pole, and the concentrating position 39 are positioned at the leading side 25 of the perpendicular plane 36 parallel in the direction of the recording track width including the trailing end of the main pole's floating surface. Further, the front of the main pole on the trailing side is positioned at the trailing side of the perpendicular plane, and the side of the main pole crossing the track width at the side of the track center of the plane perpendicular to the recording track width including the track edge at the trailing side of the floating surface. Thus, the gradient of the perpendicular components of the magnetic field can be made steep at the trailing side of the main pole and at both track edges to obtain high surface recoding density.
摘要翻译：要解决的问题：为了避免泄漏磁通的影响，并且通过考虑磁通量集中部分及其位置，可以改善垂直磁性部件的轮廓中记录层上的记录凹槽单元的边界处的磁梯度垂直磁记录头和主磁极的正面和侧面布局。解决方案：主极的磁通集中部分26和集中位置39位于垂直平面36的引导侧25处，其平行于包括主极浮动表面的后端的记录轨道宽度的方向。此外，后侧的主极的前部位于垂直平面的后侧，并且主极的侧面与垂直于记录轨道宽度的平面的轨道中心侧的轨道宽度相交包括在浮动表面的尾侧的轨道边缘。因此，磁场的垂直分量的梯度可以在主极的后侧和两个轨道边缘处陡峭以获得高的表面记录密度。

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