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11. 发明授权

US08373945B1 Magnetic writer having a split yoke 有权
标题翻译：磁性刻录机具有分叉
公开(公告)号：US08373945B1
公开(公告)日：2013-02-12
申请号：US11789190
申请日：2007-04-23
申请人： Peng Luo , Zhigang Bai , Yugang Wang , Kroum S. Stoev , Francis H. Liu
发明人： Peng Luo , Zhigang Bai , Yugang Wang , Kroum S. Stoev , Francis H. Liu
IPC分类号： G11B5/31 , G11B5/17
CPC分类号： G11B5/1278 , G11B5/3123
摘要： A method and system for providing a magnetic transducer are described. The magnetic transducer includes a first pole, a write gap, a second pole, a first coil, and a second coil. The first pole has a front portion on which at least a portion of the write gap resides. The second pole includes a split yoke that includes a first portion and a second portion. At least a portion of the first coil resides between the first portion of the split yoke and the first pole. At least a portion of the second coil resides between the second portion of the split yoke and the first pole.
摘要翻译：描述了一种用于提供磁换能器的方法和系统。磁换能器包括第一极，写间隙，第二极，第一线圈和第二线圈。第一极具有前部，至少部分写入间隙位于该前部。第二极包括分开轭，其包括第一部分和第二部分。第一线圈的至少一部分位于分叉轭的第一部分和第一极之间。第二线圈的至少一部分位于分叉轭的第二部分和第一极之间。

12. 发明授权

US07660080B1 Read/write head with dynamic flying height control by magnetostriction 失效
标题翻译：通过磁致伸缩具有动态飞行高度控制的读/写头
公开(公告)号：US07660080B1
公开(公告)日：2010-02-09
申请号：US10837490
申请日：2004-04-30
申请人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
发明人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
IPC分类号： G11B5/56 , G11B21/24
CPC分类号： G11B5/6005 , G11B5/3133
摘要： A read/write head for use in a data storage device to control the low dynamic flying height in order to achieve high data recording storage capacity of magnetic hard drives. The read/write head is designed for use in a data storage device that includes a storage medium having a recording surface. The head comprises a pole tip region and an actuator. In turn, the actuator includes an excitation source for generating a magnetic field, and a magnetostrictive plate for expanding in response to the magnetic field, resulting in a protrusion in a section of the pole tip region along a direction towards the recording surface, so that the head flies above the recording surface at a flying height lower than a nominal flying height.
摘要翻译：一种用于数据存储设备的读/写头，用于控制低动态飞行高度，以实现磁性硬盘驱动器的高数据记录存储容量。读/写头设计用于包括具有记录表面的存储介质的数据存储设备。头包括极尖区域和致动器。继而，致动器包括用于产生磁场的激励源和用于响应于磁场而扩展的磁致伸缩板，导致极尖区域沿着朝向记录表面的方向的一部分突出，使得头部在低于标称飞行高度的飞行高度处在记录表面上方飞行。

13. 发明授权

US07292409B1 Magnetic head with thin trailing pedestal layer 失效
标题翻译：磁头与薄拖尾基座层
公开(公告)号：US07292409B1
公开(公告)日：2007-11-06
申请号：US10788766
申请日：2004-02-27
申请人： Kroum S. Stoev , Francis H. Liu , James H. Wang , Marcos M. Lederman , David J. Seagle
发明人： Kroum S. Stoev , Francis H. Liu , James H. Wang , Marcos M. Lederman , David J. Seagle
IPC分类号： G11B5/147 , G11B5/17 , G11B5/187
CPC分类号： G11B5/3146 , G11B5/17 , G11B5/3116 , G11B5/3123
摘要： A magnetic head for a disk drive is disclosed that has a first soft magnetic pole layer disposed in the head adjacent to a medium-facing surface and extending perpendicular to the medium-facing surface; a second soft magnetic pole layer disposed closer than the first pole layer to the trailing end, the second pole layer magnetically coupled to the first pole layer in a backgap region; a soft magnetic pedestal adjoining the second pole layer, disposed closer than the second pole layer to the medium-facing surface and extending less than the second pole layer extends from the medium-facing surface, the pedestal separated from the first pole layer by a nonferromagnetic gap, the pedestal having a thickness that is less than four hundred and fifty nanometers between the gap and the second pole layer. Longitudinal and perpendicular recording embodiments are disclosed, as well as solenoidal, single-layer and dual-layer reversed-current coil structures.
摘要翻译：公开了一种用于磁盘驱动器的磁头，其具有第一软磁极层，该第一软磁极层设置在与中间面向表面相邻并且垂直于介质面向表面延伸的头部中; 第二软磁极层，设置成比所述第一极层更靠近所述后端，所述第二极层在后隙区域中磁耦合到所述第一极层; 邻近第二极层的软磁性基座设置成比第二极层更靠近介质相对表面并且延伸小于第二极层从中介面向表面延伸，基座与第一极层分离，由非铁磁间隙，所述基座在所述间隙和所述第二极层之间具有小于四百五十纳米的厚度。公开纵向和垂直记录实施例，以及螺线管，单层和双层反向电流线圈结构。

14. 发明授权

US07126790B1 Magnetic head for perpendicular recording with magnetic loop providing non-perpendicular write field 有权
标题翻译：磁头垂直记录，磁环提供非垂直写入场
公开(公告)号：US07126790B1
公开(公告)日：2006-10-24
申请号：US10724309
申请日：2003-11-26
申请人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
发明人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/17 , G11B5/3116 , G11B2005/0002 , G11B2005/001
摘要： A magnetic head for writing information on perpendicular media has a write pole tip and a return pole tip with a media-facing area at least two orders of magnitude greater than that of the write pole tip, the return pole tip is spaced from a trailing corner of the write pole tip by a submicron nonferromagnetic gap. Magnetic flux emanating from the write pole tip is strongest adjacent the trailing corner and directed at an angle that is not perpendicular to the write pole tip. The angled flux provides increased torque to rotate magnetic dipoles in the adjacent media layer that are oriented substantially perpendicular to the disk surface. The media may have a soft magnetic underlayer that is spaced from the write pole tip by a distance similar to the gap spacing.
摘要翻译：用于在垂直介质上写入信息的磁头具有写磁极尖端和返回极尖端，其中介质面积比写入磁极尖端大至少两个数量级，返回磁极尖端与后角的写极尖由亚微米非铁磁隙隙。从写入极尖发出的磁通量最靠近后角并以不垂直于写入极尖的角度指向。角度通量提供增加的扭矩以旋转基本上垂直于盘表面定向的相邻介质层中的偶极子。介质可以具有与写磁极尖端间隔一段类似于间隙间隔的软磁性底层。

15. 发明授权

US07126788B1 Trailing edge recording magnetic head with reversed double bias coil and deflection pole for perpendicular recording with a non-perpendicular write field 有权
标题翻译：具有反向双偏置线圈的跟踪记录磁头和用于垂直记录的非垂直写入场的偏转极
公开(公告)号：US07126788B1
公开(公告)日：2006-10-24
申请号：US10724385
申请日：2003-11-26
申请人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
发明人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
IPC分类号： G11B5/17 , G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/17 , G11B2005/0002
摘要： A magnetic head for writing information on perpendicular media has a write pole tip, a return pole tip and a deflection pole tip is disclosed. The return pole tip has a media-facing area at least two orders of magnitude greater than that of the write pole tip, and the deflection pole tip is spaced from a trailing corner of the write pole tip by a submicron nonferromagnetic gap. Magnetic flux emanating from the write pole tip is strongest adjacent the trailing corner and directed at an angle that is not perpendicular to the write pole tip. The angled flux provides increased torque to rotate magnetic dipoles in the adjacent media layer that are oriented substantially perpendicular to the disk surface. The media may have a soft magnetic underlayer that is spaced from the write pole tip by a distance similar to the gap spacing.
摘要翻译：用于在垂直介质上写入信息的磁头具有写极端，回极极端和偏转极尖。返回极端部具有比写入磁极尖端大至少两个数量级的面向介质的区域，并且偏转极尖端与写入磁极尖端的后角部分间隔有亚微米非铁磁隙。从写入极尖发出的磁通量最靠近后角并以不垂直于写入极尖的角度指向。角度通量提供增加的扭矩以旋转基本上垂直于盘表面定向的相邻介质层中的偶极子。介质可以具有与写磁极尖端间隔一段类似于间隙间隔的软磁性底层。

16. 发明授权

US08537494B1 PMR head with an angled stitch layer 有权
标题翻译： PMR头与一个角度的缝合层
公开(公告)号：US08537494B1
公开(公告)日：2013-09-17
申请号：US11935508
申请日：2007-11-06
申请人： Tao Pan , Yugang Wang , Kroum S. Stoev
发明人： Tao Pan , Yugang Wang , Kroum S. Stoev
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A method and system for providing a magnetic transducer having an air-bearing surface (ABS) are described. The magnetic transducer includes a perpendicular magnetic recording (PMR) pole, an additional pole, a stitch, a shield, a write gap between the PMR pole and a portion of the shield, and at least one coil that energizes at least the additional pole. The PMR pole has a first front portion proximate to the ABS, while the additional pole is recessed from the ABS. The stitch resides between the PMR pole and the additional pole and has a stitch front portion between the front portion of the PMR pole and the additional pole. At least a portion of the write gap resides on the front portion of the PMR pole. At least a portion of the additional pole resides between the PMR pole and the shield.
摘要翻译：描述了一种用于提供具有空气轴承表面（ABS）的磁换能器的方法和系统。磁换能器包括垂直磁记录（PMR）极，附加极，线迹，屏蔽，PMR极与屏蔽的一部分之间的写间隙，以及至少一个激励至少附加极的线圈。 PMR杆具有靠近ABS的第一前部，而附加杆从ABS凹入。该线圈位于PMR极和附加极之间，并且在PMR极的前部和附加极之间具有针迹前部。写入间隙的至少一部分位于PMR极的前部。附加极点的至少一部分位于PMR极与屏蔽之间。

17. 发明授权

US07729086B1 Perpendicular magnetic recording head with dynamic flying height heating element disposed below turns of a write coil 有权
标题翻译：具有动态飞行高度加热元件的垂直磁记录头位于写入线圈的下方
公开(公告)号：US07729086B1
公开(公告)日：2010-06-01
申请号：US12197612
申请日：2008-08-25
申请人： Suping Song , Kroum S. Stoev
发明人： Suping Song , Kroum S. Stoev
IPC分类号： G11B5/147 , G11B5/56
CPC分类号： G11B5/3133 , G11B5/1278 , G11B5/3967 , G11B5/6064 , G11B5/607
摘要： A magnetic head for perpendicular magnetic recording includes a slider having an air bearing surface (ABS) and a trailing surface and a transducer fabricated on the trailing surface. The transducer includes a magnetoresistive (MR) read element disposed within a gap material bounded by shield material, an adjunct pole, and a main pole formed in an adjacent layered relationship to the adjunct pole. The adjunct pole has a front edge that is recessed from the ABS and a rear edge. The main pole has a write tip that extends approximately to the ABS. The transducer further includes a write coil having a first layer of turns below the adjunct pole and above the shield material. The magnetic head also includes a heating element with a portion of the heating element below the write coil and behind the rear edge of the adjunct pole.
摘要翻译：用于垂直磁记录的磁头包括具有空气轴承表面（ABS）和后表面的滑块以及在后表面上制造的换能器。换能器包括设置在由屏蔽材料界定的间隙材料内的磁阻（MR）读取元件，辅助极和与附加极相邻的层叠关系形成的主极。辅助杆具有从ABS凹下的前边缘和后边缘。主杆具有大致延伸到ABS的写入尖端。换能器还包括写入线圈，该线圈具有在辅助极下方的第一层匝并且在屏蔽材料之上。磁头还包括加热元件，其中加热元件的一部分在写入线圈下方并在辅助极的后边缘之后。

18. 发明授权

US08351307B1 Trailing edge optimized near field transducer having non-rectangular pin cross section 有权
标题翻译：后沿优化近场传感器具有非矩形销截面
公开(公告)号：US08351307B1
公开(公告)日：2013-01-08
申请号：US12794692
申请日：2010-06-04
申请人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev
发明人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A near field transducer (NFT) for use in an energy assisted magnetic recording (EAMR) head and configured to direct energy to a recording media is disclosed. The NFT comprises a disk section; and a pin section extending towards an air bearing surface (ABS) from the disk section. The pin section has a proximal end adjoining the disk section and a distal end opposite to the proximal end and facing the ABS, wherein at least the distal end of the pin section has a non- rectangular cross section in a plane parallel to the ABS.
摘要翻译：公开了一种用于能量辅助磁记录（EAMR）头并被配置为将能量引导到记录介质的近场传感器（NFT）。 NFT包括磁盘部分; 以及从盘部向空气轴承表面（ABS）延伸的销部分。销部分具有邻近盘部分的近端和与近端相对的并且面向ABS的远端，其中销部分的至少远端在平行于ABS的平面中具有非矩形截面。

19. 发明授权

US08320219B1 Trailing edge optimized near field transducer 有权
标题翻译：后沿优化近场传感器
公开(公告)号：US08320219B1
公开(公告)日：2012-11-27
申请号：US12815934
申请日：2010-06-15
申请人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev
发明人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev
IPC分类号： G11B11/00
CPC分类号： G11B5/6088 , G11B5/314 , G11B2005/0021
摘要： An energy assisted magnetic recording (EAMR) head for writing to a recording media is disclosed. The EAMR head includes a write pole for providing a magnetic field for writing to the recording media; and a near field transducer disposed adjacent to the write pole and comprising a disk section and a pin section extending towards an air bearing surface (ABS) from the disk section. At least a portion of the pin section is electrically isolated from the write pole by an insulator material.
摘要翻译：公开了一种用于写入记录介质的能量辅助磁记录（EAMR）头。 EAMR头包括写磁极，用于提供用于写入记录介质的磁场; 以及靠近所述写入极设置的近场换能器，并且包括盘部分和从所述盘部向空气轴承表面（ABS）延伸的销部分。引脚部分的至少一部分通过绝缘体材料与写入极电隔离。

20. 发明授权

US07869160B1 Perpendicular recording head with shaped pole surfaces for higher linear data densities 有权
标题翻译：垂直记录头，具有成形极面，可实现更高的线性数据密度
公开(公告)号：US07869160B1
公开(公告)日：2011-01-11
申请号：US11116658
申请日：2005-04-27
申请人： Tao Pan , Kroum S. Stoev , Yugang Wang , Jack M. Chue
发明人： Tao Pan , Kroum S. Stoev , Yugang Wang , Jack M. Chue
IPC分类号： G11B5/23 , G11B5/187 , G11B5/31 , G11B5/39
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/1871 , G11B5/23 , G11B5/3146 , G11B5/3163
摘要： A perpendicular recording head is provided having a bottom pole, a writer pole disposed above the bottom pole, and a top shield disposed above the writer pole. The bottom pole and the top shield are both magnetically coupled to the writer pole. The writer pole includes a concave facing surface that faces the top shield. The top shield can include a convex surface that faces the writer pole. The top shield can also include a pedestal that protrudes towards the writer pole.
摘要翻译：设置有垂直记录头，其具有底极，设置在底极上方的写入极和设置在写入极上方的顶部屏蔽。底极和顶部屏蔽都与磁极耦合。写入器极包括面向顶部屏蔽的面向凹面的表面。顶部屏蔽件可以包括面向写入极的凸面。顶部屏蔽还可以包括朝着写入杆突出的基座。

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