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Patent Agency Ranking
公开(公告)号：US09928858B1
公开(公告)日：2018-03-27
申请号：US15702571
申请日：2017-09-12
Applicant: Seagate Technology LLC
Inventor： Zhe Shen , Zuxuan Lin , Lei Lu , Jian Zhong
CPC classification number: G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/315 , G11B5/3166 , G11B5/3196 , G11B19/048
Abstract: A method that includes supplying a predetermined signal to a write head having side shields. The method also includes performing, by the write head, a recording operation on a surface of a data storage medium, when the predetermined signal is supplied to the write head, to provide a recorded magnetization pattern. The method further includes carrying out measurements on a portion of the recorded magnetization pattern influenced by a magnetization of the side shields. The measurements are employed to determine whether a reversed side shield magnetization condition is present in the write head.
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公开(公告)号：US09595275B1
公开(公告)日：2017-03-14
申请号：US14976184
申请日：2015-12-21
Applicant: Seagate Technology LLC
Inventor： Yanzhang Liu , Kirill Rivkin , Lei Lu , Huaqing Yin
CPC classification number: G11B5/465
Abstract: A method of removing a magnetic domain from a slider structure, such as a shield of a write head, in a storage assembly having a storage media. The method includes passing the slider structure in close proximity to a region on the storage media having a magnetic field sufficiently large to remove a magnetic domain in the slider structure.
Abstract translation: 一种从具有存储介质的存储组件中的滑动结构（例如写入头的屏蔽）去除磁畴的方法。 该方法包括使滑块结构靠近具有足够大的磁场的存储介质上的区域，以去除滑块结构中的磁畴。
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公开(公告)号：US09520148B1
公开(公告)日：2016-12-13
申请号：US14976286
申请日：2015-12-21
Applicant: Seagate Technology LLC
Inventor： Yanzhang Liu , Kirill Rivkin , Lei Lu , Huaqing Yin
CPC classification number: G11B5/465 , H01F13/006
Abstract: Methods of removing a magnetic domain from a slider structure, such as a shield in a write head, in a data storage assembly. The method comprises passing the slider structure in close proximity to a decaying magnetic field of at least 100 Oe and no more than 1500 Oe originating from within the storage assembly. In some implementations the decaying magnetic field has an oscillating polarity.
Abstract translation: 从数据存储组件中的诸如写入头中的屏蔽的滑块结构去除磁畴的方法。 该方法包括使滑块结构靠近来自存储组件内的至少100Oe且不超过1500ee的衰减磁场。 在一些实现中，衰减磁场具有振荡极性。
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公开(公告)号：US09704510B2
公开(公告)日：2017-07-11
申请号：US14863673
申请日：2015-09-24
Applicant: Seagate Technology LLC
Inventor： Lei Lu , Kirill Rivkin , Xuelian Xu , Huaqing Yin
CPC classification number: G11B5/115 , G11B5/11 , G11B5/112 , G11B5/1278 , G11B5/315 , G11B5/3163
Abstract: A data writer can have at least a write pole separated from first and second side shields by a continuous dielectric gap layer. Each side shield may have first and second shield sub-layers configured with different magnetic moments that increase relative to the sub-layer's distance from the write pole. The side shields may wrap around a leading tip of the write pole to form a box shield.
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公开(公告)号：US09171557B1
公开(公告)日：2015-10-27
申请号：US14535481
申请日：2014-11-07
Applicant: Seagate Technology LLC
Inventor： Jiaoming Qiu , Lei Lu , Xuelian Xu
IPC: G11B5/147
CPC classification number: G11B5/6082 , G11B5/1272 , G11B5/1278 , G11B5/147 , G11B5/17 , G11B5/3116 , G11B5/3123
Abstract: A write head having a write pole with a tip portion defining a pole tip and a paddle portion extending from the tip portion away from the pole tip, the paddle portion defining a back edge. The write head also has a coil structure having at least two active turns crossing the paddle portion, wherein a back of the coil structure is no more than 1 micrometer past the back edge of the write pole. In some implementations, a length from the pole tip to the back edge is no more than 4.5 micrometers.
Abstract translation: 一种具有写入极的写入头，其具有限定极尖的尖端部分和从所述尖端部分远离所述极尖端延伸的桨状部分，所述桨形部分限定了后缘。 写头还具有线圈结构，该线圈结构具有至少两个与该桨叶部分相交的活动匝，其中线圈结构的背面经过写入极的后边缘不超过1微米。 在一些实施方案中，从极尖到后缘的长度不超过4.5微米。
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