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1. 发明申请

US20070097546A1 Laminated return pole for suppressing side track erasure 有权
标题翻译：用于抑制侧轨道擦除的层压返回杆
公开(公告)号：US20070097546A1
公开(公告)日：2007-05-03
申请号：US11262198
申请日：2005-10-28
申请人： Shaoping Li , Lei Wang , Chunhong Hou , Song Xue , Daniel Brown
发明人： Shaoping Li , Lei Wang , Chunhong Hou , Song Xue , Daniel Brown
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146
摘要： A perpendicular writer includes a surface, a main pole proximate the surface, a return pole proximate the surface, and a back yoke connecting the main pole to the return pole distal the surface. The return pole is configured such that a magnetization of a portion of the return pole adjacent the surface is held substantially parallel to the surface during a write operation.
摘要翻译：垂直刻录机包括表面，靠近表面的主极，靠近表面的返回极，以及将主极连接到远离表面的返回极的后轭。返回极被配置为使得在写入操作期间，邻近表面的返回极的部分的磁化基本上平行于表面。

2. 发明授权

US07382574B2 Layered perpendicular writer with pole tip partially embedded in yoke 有权
标题翻译：分层垂直写入器，极尖部分嵌入磁轭
公开(公告)号：US07382574B2
公开(公告)日：2008-06-03
申请号：US11006202
申请日：2004-12-06
申请人： Shaoping Li , Chunhong Hou , Lei Wang
发明人： Shaoping Li , Chunhong Hou , Lei Wang
IPC分类号： G11B5/147
CPC分类号： G11B5/1278
摘要： A perpendicular writer includes a write coil and a main pole having a pole tip for conducting magnetic flux to write data to a magnetic medium. The pole tip includes a plurality of magnetic layers that are magnetically coupled and biased so that their magnetic moment orientations are substantially parallel to an external surface when no write current is applied to the write coil. The pole tip is partially embedded in the yoke, such that portions of the yoke surrounding the pole tip help direct magnetic flux to the pole tip. The pole tip extends beyond the yoke, with a first end located outside the yoke and a second end located within the yoke.
摘要翻译：垂直写入器包括写入线圈和具有用于传导磁通以将数据写入磁性介质的极尖的主极。极尖包括磁耦合和偏置的多个磁性层，使得当没有写入电流施加到写入线圈时，它们的磁矩取向基本上平行于外部表面。极尖部分地嵌入在轭中，使得围绕极端部的轭的部分有助于将磁通量引导到极尖。磁极尖端延伸超过磁轭，第一端位于磁轭外部，第二端位于磁轭内。

3. 发明授权

US07561379B2 Laminated return pole for suppressing side track erasure 有权
标题翻译：用于抑制侧轨道擦除的层压返回杆
公开(公告)号：US07561379B2
公开(公告)日：2009-07-14
申请号：US11262198
申请日：2005-10-28
申请人： Shaoping Li , Lei Wang , Chunhong Hou , Song S. Xue , Daniel John Brown
发明人： Shaoping Li , Lei Wang , Chunhong Hou , Song S. Xue , Daniel John Brown
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146
摘要： A perpendicular writer includes a surface, a main pole proximate the surface, a return pole proximate the surface, and a back yoke connecting the main pole to the return pole distal the surface. The return pole is configured such that a magnetization of a portion of the return pole adjacent the surface is held substantially parallel to the surface during a write operation.
摘要翻译：垂直刻录机包括表面，靠近表面的主极，靠近表面的返回极，以及将主极连接到远离表面的返回极的后轭。返回极被配置为使得在写入操作期间，邻近表面的返回极的部分的磁化基本上平行于表面。

4. 发明授权

US07016166B1 Mag-tab design for biasing magnetic sensors 失效
标题翻译： Mag-tab设计用于偏置磁性传感器
公开(公告)号：US07016166B1
公开(公告)日：2006-03-21
申请号：US10406172
申请日：2003-04-03
申请人： Chunhong Hou , Xuefei Tang , Qing He , Lei Wang
发明人： Chunhong Hou , Xuefei Tang , Qing He , Lei Wang
IPC分类号： G11B5/127
CPC分类号： G01R33/093 , B82Y10/00 , B82Y25/00 , G11B5/3932 , G11B2005/3996
摘要： A structure for stabilizing the active region of the magnetic sensor comprises a hard ferromagnetic element adjacent to a biasing multilayer element placed on either side of the active region of the magnetic sensor. The biasing multilayer element includes soft ferromagnetic and anti-ferromagnetic layers such that the biasing strength applied to the active region of the magnetic sensor is tuneable by adjusting the length of the soft ferromagnetic layer or layers as well as the insertion of spacer layers between the soft ferromagnetic materials and the anti-ferromagnetic layers. The inventive structure provides longitudinal bias to the active region with improved domain control, signal amplitude and side-reading properties.
摘要翻译：用于稳定磁传感器的有源区域的结构包括与置于磁传感器的有源区域的任一侧上的偏置多层元件相邻的硬铁磁元件。偏置多层元件包括软铁磁和反铁磁层，使得施加到磁传感器的有源区的偏置强度可通过调节软铁磁层的长度以及在柔软的铁磁层之间插入间隔层铁磁材料和反铁磁层。本发明的结构提供了有源区域的纵向偏置，具有改进的域控制，信号幅度和侧读特性。

5. 发明授权

US08501330B2 Perpendicular magnetic recording media with magnetic anisotropy gradient and local exchange coupling 有权
公开(公告)号：US08501330B2
公开(公告)日：2013-08-06
申请号：US13270715
申请日：2011-10-11
申请人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu , Xiaobin Wang
发明人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu , Xiaobin Wang
IPC分类号： G11B5/66 , G11B5/65
CPC分类号： G11B5/667 , B82Y10/00 , G11B5/64 , G11B5/65 , G11B5/656 , G11B5/66 , G11B5/743 , G11B5/746 , G11B5/82 , G11B2005/0029 , H01F41/0206 , Y10S428/90 , Y10T29/4902 , Y10T29/49032 , Y10T29/49067 , Y10T428/12458 , Y10T428/12465 , Y10T428/12931 , Y10T428/26 , Y10T428/265
摘要： A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed thereon, the layer stack including a perpendicular recording layer containing a plurality of columnar-shaped magnetic grains extending perpendicularly to the substrate surface for a length, with a first end distal the surface and a second end proximal the surface, wherein each of the magnetic grains has: (1) a gradient of perpendicular magnetic anisotropy field Hk extending along its length between the first end and second ends; and (2) predetermined local exchange coupling strengths along the length.

6. 发明授权

US07333294B1 Perpendicular writer with reduced side track writing 有权
标题翻译：垂直作者，减少侧轨写作
公开(公告)号：US07333294B1
公开(公告)日：2008-02-19
申请号：US10323507
申请日：2002-12-18
申请人： Shaoping Li , Wenzhong Zhu , Lei Wang , Rick Michel , David Kaiser , Dean C. Palmer , Taras G. Pokhil , Ned Tabat
发明人： Shaoping Li , Wenzhong Zhu , Lei Wang , Rick Michel , David Kaiser , Dean C. Palmer , Taras G. Pokhil , Ned Tabat
IPC分类号： G11B5/147
CPC分类号： G11B5/1278
摘要： A disc drive head that includes a shared pole having high magnetic anisotropy layer which locally decreases the amplitude of dynamic field excitation of the shared pole at the write operation frequency to reduce side-writing of a disc media during a write operation.
摘要翻译：一种盘驱动头，其包括具有高磁各向异性层的共享极，其在写入操作频率下局部地减小共享极的动态场激励的幅度，以减少在写操作期间盘介质的写入。

7. 发明授权

US07201977B2 Anti-ferromagnetically coupled granular-continuous magnetic recording media 有权
标题翻译：反铁磁耦合颗粒连续磁记录介质
公开(公告)号：US07201977B2
公开(公告)日：2007-04-10
申请号：US10806114
申请日：2004-03-23
申请人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu
发明人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu
IPC分类号： G11B5/66
CPC分类号： G11B5/732 , G11B5/653 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/725
摘要： An anti-ferromagnetically coupled, granular-continuous (“AFC-GC”) magnetic recording medium having increased thermal stability, writability, and signal-to-medium noise ratio (“SMNR”), comprising a layer stack including, in sequence from a surface of a non-magnetic substrate: (a) a continuous ferromagnetic stabilizing layer; (b) a non-magnetic spacer layer; and (c) a granular ferromagnetic recording layer; wherein: (i) the continuous ferromagnetic stabilizing and granular ferromagnetic recording layers are anti-ferromagnetically coupled across the non-magnetic spacer layer, the amount of anti-ferromagnetic coupling preselected to ensure magnetic relaxation after writing; (ii) lateral interactions in the granular, ferromagnetic recording layer are substantially completely eliminated or suppressed; and (iii) the exchange coupling strength in the continuous, ferromagnetic stabilizing layer is preselected to be slightly larger than the strength of the anti-ferromagnetic coupling provided by the non-magnetic spacer layer to thereby enhance thermal stability of the recording bits.
摘要翻译：具有增加的热稳定性，可写性和信噪比（“SMNR”）的反铁磁耦合的粒状连续（“AFC-GC”）磁记录介质，包括层叠，其包括从非磁性表面

8. 发明申请

US20120028078A1 Perpendicular Magnetic Recording Media with Magnetic Anisotropy Gradient and Local Exchange Coupling 有权
标题翻译：具有磁各向异性梯度和局部交换耦合的垂直磁记录介质
公开(公告)号：US20120028078A1
公开(公告)日：2012-02-02
申请号：US13270715
申请日：2011-10-11
申请人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu , Xiaobin Wang
发明人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu , Xiaobin Wang
IPC分类号： G11B5/66 , G11B5/65
CPC分类号： G11B5/667 , B82Y10/00 , G11B5/64 , G11B5/65 , G11B5/656 , G11B5/66 , G11B5/743 , G11B5/746 , G11B5/82 , G11B2005/0029 , H01F41/0206 , Y10S428/90 , Y10T29/4902 , Y10T29/49032 , Y10T29/49067 , Y10T428/12458 , Y10T428/12465 , Y10T428/12931 , Y10T428/26 , Y10T428/265
摘要： A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed thereon, the layer stack including a perpendicular recording layer containing a plurality of columnar-shaped magnetic grains extending perpendicularly to the substrate surface for a length, with a first end distal the surface and a second end proximal the surface, wherein each of the magnetic grains has: (1) a gradient of perpendicular magnetic anisotropy field Hk extending along its length between the first end and second ends; and (2) predetermined local exchange coupling strengths along the length.
摘要翻译：适用于高记录密度和高数据记录速率的垂直磁记录介质包括具有至少一个具有在其上形成层叠层的表面的非磁性基板，该层堆叠包括垂直记录层，该垂直记录层包含多个柱状磁性颗粒垂直于衬底表面延伸一段长度，第一端远离表面，接近表面的第二端，其中每个磁性颗粒具有：（1）垂直磁各向异性场Hk沿其长度延伸的梯度第一端和第二端; 和（2）沿着长度的预定局部交换耦合强度。

9. 发明授权

US08048545B2 Perpendicular magnetic recording media with magnetic anisotropy gradient and local exchange coupling 有权
标题翻译：具有磁各向异性梯度和局部交换耦合的垂直磁记录介质
公开(公告)号：US08048545B2
公开(公告)日：2011-11-01
申请号：US12962553
申请日：2010-12-07
申请人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu , Xiaobin Wang
发明人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu , Xiaobin Wang
IPC分类号： G11B5/66 , H01F13/00
CPC分类号： G11B5/667 , B82Y10/00 , G11B5/64 , G11B5/65 , G11B5/656 , G11B5/66 , G11B5/743 , G11B5/746 , G11B5/82 , G11B2005/0029 , H01F41/0206 , Y10S428/90 , Y10T29/4902 , Y10T29/49032 , Y10T29/49067 , Y10T428/12458 , Y10T428/12465 , Y10T428/12931 , Y10T428/26 , Y10T428/265
摘要： A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed thereon, the layer stack including a perpendicular recording layer containing a plurality of columnar-shaped magnetic grains extending perpendicularly to the substrate surface for a length, with a first end distal the surface and a second end proximal the surface, wherein each of the magnetic grains has: (1) a gradient of perpendicular magnetic anisotropy field Hk extending along its length between the first end and second ends; and (2) predetermined local exchange coupling strengths along the length.
摘要翻译：适用于高记录密度和高数据记录速率的垂直磁记录介质包括具有至少一个具有在其上形成层叠层的表面的非磁性基板，该层堆叠包括垂直记录层，该垂直记录层包含多个柱状磁性颗粒垂直于衬底表面延伸一段长度，第一端远离表面，接近表面的第二端，其中每个磁性颗粒具有：（1）垂直磁各向异性场Hk沿其长度延伸的梯度第一端和第二端; 和（2）沿着长度的预定局部交换耦合强度。

10. 发明申请

US20050214585A1 Anti-ferromagnetically coupled granular-continuous magnetic recording media 有权
标题翻译：反铁磁耦合颗粒连续磁记录介质
公开(公告)号：US20050214585A1
公开(公告)日：2005-09-29
申请号：US10806114
申请日：2004-03-23
申请人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu
发明人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu
IPC分类号： G11B5/64 , G11B5/66 , G11B5/72 , G11B5/725 , G11B5/73
CPC分类号： G11B5/732 , G11B5/653 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/725
摘要： An anti-ferromagnetically coupled, granular-continuous (“AFC-GC”) magnetic recording medium having increased thermal stability, writability, and signal-to-medium noise ratio (“SMNR”), comprising a layer stack including, in sequence from a surface of a non-magnetic substrate: (a) a continuous ferromagnetic stabilizing layer; (b) a non-magnetic spacer layer; and (c) a granular ferromagnetic recording layer; wherein: (i) the continuous ferromagnetic stabilizing and granular ferromagnetic recording layers are anti-ferromagnetically coupled across the non-magnetic spacer layer, the amount of anti-ferromagnetic coupling preselected to ensure magnetic relaxation after writing; (ii) lateral interactions in the granular, ferromagnetic recording layer are substantially completely eliminated or suppressed; and (iii) the exchange coupling strength in the continuous, ferromagnetic stabilizing layer is preselected to be slightly larger than the strength of the anti-ferromagnetic coupling provided by the non-magnetic spacer layer to thereby enhance thermal stability of the recording bits.
摘要翻译：具有增加的热稳定性，可写性和信噪比（“SMNR”）的反铁磁耦合的粒状连续（“AFC-GC”）磁记录介质，包括层叠，其包括从非磁性基板的表面：（a）连续的铁磁稳定层; （b）非磁性间隔层; 和（c）粒状铁磁记录层; 其中：（i）连续的铁磁稳定和粒状铁磁记录层跨过非磁性间隔层进行反铁磁耦合，预先选择反铁磁性耦合量以确保写入后的磁弛豫; （ii）颗粒状铁磁记录层中的横向相互作用基本上完全消除或抑制; 并且（iii）连续的铁磁稳定层中的交换耦合强度被预先选择为略大于由非磁性间隔层提供的反铁磁耦合的强度，从而提高记录位的热稳定性。

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