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1. 发明申请

US20130128385A1 OVERCOATS THAT INCLUDE MAGNETIC MATERIALS 有权
标题翻译：包括磁性材料
公开(公告)号：US20130128385A1
公开(公告)日：2013-05-23
申请号：US13476226
申请日：2012-05-21
申请人： Brian William Karr , Joel William Hoehn , Declan Macken , Christopher Loren Platt , Mei-Ling Wu , Sarbeswar Sahoo , Michael Christopher Kautzky
发明人： Brian William Karr , Joel William Hoehn , Declan Macken , Christopher Loren Platt , Mei-Ling Wu , Sarbeswar Sahoo , Michael Christopher Kautzky
IPC分类号： G11B5/127
CPC分类号： G11B5/127 , G11B5/3146 , G11B2005/0021
摘要： A device having an air bearing surface, the device including a writer portion having an air bearing surface at the air bearing surface of the device; and an overcoat layer disposed on at least a portion of the air bearing surface of the writer portion, wherein the overcoat includes a material having a magnetic moment of at least about 0.1 Tesla (T).
摘要翻译：一种具有空气轴承表面的装置，该装置包括在装置的空气轴承表面处具有空气轴承表面的记录器部分; 以及设置在写入器部分的空气支承表面的至少一部分上的外涂层，其中外涂层包括具有至少约0.1特斯拉（T）的磁矩的材料。

2. 发明申请

US20080186637A1 READER SHIELD/ELECTRODE STRUCTURE FOR IMRPOVED STRAY FIELD AND ELECTRICAL PERFORMANCE 有权
标题翻译：读写器屏蔽/电极结构用于IMRPOVED STRAY场和电气性能
公开(公告)号：US20080186637A1
公开(公告)日：2008-08-07
申请号：US12100919
申请日：2008-04-10
申请人： Daniel Paul Burbank , Declan Macken , Harry Sam Edelman
发明人： Daniel Paul Burbank , Declan Macken , Harry Sam Edelman
IPC分类号： G11B5/33
CPC分类号： G11B5/3912 , G11B5/11 , G11B5/3143
摘要： A magnetic sensing device includes a first electrode, a second electrode, a first magnetic shield, a second magnetic shield, and a sensor. The first magnetic shield forms at least a portion of the first electrode. The second magnetic shield includes a first region that forms at least a portion of the first electrode and a second region that forms at least a portion of the second electrode. The sensor is positioned between the first and second magnetic shields and is electrically connected in series between the first and second electrodes.
摘要翻译：磁感测装置包括第一电极，第二电极，第一磁屏蔽，第二磁屏蔽和传感器。第一磁屏蔽形成第一电极的至少一部分。第二磁屏蔽包括形成第一电极的至少一部分的第一区域和形成第二电极的至少一部分的第二区域。传感器位于第一和第二磁屏蔽之间并串联电连接在第一和第二电极之间。

3. 发明授权

US07130165B2 Side shielded current in plane spin-valve 有权
公开(公告)号：US07130165B2
公开(公告)日：2006-10-31
申请号：US10378451
申请日：2003-03-03
申请人： Declan Macken , Michael K. Minor , Steven B. Slade , David J. Larson , Daniel J. Dummer
发明人： Declan Macken , Michael K. Minor , Steven B. Slade , David J. Larson , Daniel J. Dummer
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/313 , G11B5/3903 , G11B2005/3996
摘要： The magnetoresistive sensor has an MR stack and side shields formed by contacts and/or pedestals on either side of the MR stack. The materials for the contacts and pedestals are selected to be magnetically soft, electrically conductive and have a low AMR signal. The contacts and pedestals are magnetically decoupled from the hard bias materials by placement of spacers.

4. 发明授权

US07027270B2 Spin valve sensor for high areal density applications 失效
公开(公告)号：US07027270B2
公开(公告)日：2006-04-11
申请号：US10208509
申请日：2002-07-30
申请人： Dimitar V. Dimitrov , Insik Jin , Declan Macken , Robert W. Lamberton , Xuefei Tang , Johannes van Ek , Thomas R. Boonstra
发明人： Dimitar V. Dimitrov , Insik Jin , Declan Macken , Robert W. Lamberton , Xuefei Tang , Johannes van Ek , Thomas R. Boonstra
IPC分类号： G11B5/127
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3116 , G11B5/3903 , G11B2005/3996
摘要： The magnetoresistive sensor has a bottom shield, a nonmagnetic metallic pedestal, a bottom reader gap, a biasing element, a magnetoresistive stack, current leads, a top reader gap, and a top shield. The nonmagnetic metallic pedestal is positioned on a portion of the bottom shield and the nonmagnetic metallic pedestal has a width less than the width of the bottom shield. The bottom reader gap is positioned on the nonmagnetic metallic pedestal and on the bottom shield such that a portion of the bottom reader gap over the nonmagnetic metallic pedestal is raised relative to portions of the bottom reader gap not over the nonmagnetic metallic pedestal.

5. 发明授权

US06791796B2 Perpendicular writer with laminated main pole 失效
标题翻译：具有主极延伸层的垂直写入器和不同时刻的反铁磁耦合层
公开(公告)号：US06791796B2
公开(公告)日：2004-09-14
申请号：US10259133
申请日：2002-09-27
申请人： Alexander Mikhailovich Shukh , Vladyslav Alexandrovich Vaśko , Declan Macken
发明人： Alexander Mikhailovich Shukh , Vladyslav Alexandrovich Vaśko , Declan Macken
IPC分类号： G11B531
CPC分类号： G11B5/1278 , G11B5/3113 , G11B5/3153
摘要： The present invention is a perpendicular writer having an air-bearing surface, a main pole with an extension, and return pole, and a back gap closure intermediate the main pole extension and the return pole. The main pole includes a top magnetic layer and a soft magnetic underlayer separated by a nonmagnetic spacer. The main pole extension is in direct contact with the main pole and recessed from the air-bearing surface. The top magnetic layer forms a trailing edge of the main pole at the ABS and has a magnetic moment greater than that of the soft magnetic underlayer. Further, the top magnetic layer and the soft magnetic underlayer are antiferromagnetically coupled through the thin nonmagnetic spacer. The nonmagnetic spacer has predominantly 111-crystalline texture and promotes reduction of coercivity and grain size along with an increase of anistropy of the top magnetic layer material.
摘要翻译：本发明是一种具有空气轴承表面的垂直刻录机，具有延伸部分的主极和返回极，以及在主极延伸部和返回极之间的后间隙。主极包括由非磁性间隔物分离的顶部磁性层和软磁性底层。主极延伸部分与主极直接接触并从空气轴承表面凹陷。顶部磁性层在ABS处形成主极的后缘，其磁矩大于软磁性底层的磁矩。此外，顶部磁性层和软磁性底层通过薄的非磁性间隔物反铁磁耦合。非磁性间隔物主要具有111晶体结构，并且随着顶部磁性层材料的电阻率的增加，促进了矫顽力和晶粒尺寸的降低。

6. 发明授权

US06169646A Magnetoresistive shield incorporating seedlayer for anisotropy enhancement 失效
标题翻译：含有各向异性增强的种子层的磁阻屏蔽
公开(公告)号：US06169646A
公开(公告)日：2001-01-02
申请号：US09271052
申请日：1999-03-17
申请人： Declan Macken , Kevin J. Duddy
发明人： Declan Macken , Kevin J. Duddy
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3113 , G11B5/3153 , G11B5/3163 , G11B5/332 , G11B5/3903 , G11B2005/3996
摘要： A layer of iron—silicon—aluminum alloy is deposited over a seedlayer of an amorphous alloy to form a shield for a read element in a recording head. Percentage weights of iron, silicon, and aluminum in the iron—silicon—aluminum alloy are each selected such that the alloy has both near-zero magnetostriction and distinct magnetocrystalline anisotropy. Use of the amorphous alloy seedlayer results in greater magnetocrystalline anisotropy in the shield.
摘要翻译：将一层铁 - 硅 - 铝合金沉积在无定形合金的籽晶层上，以形成用于记录头中的读取元件的屏蔽。选择铁 - 铝 - 铝合金中的铁，硅和铝的重量百分比，使得合金具有近零磁致伸缩和不同的磁晶各向异性。使用非晶合金种子层可以在屏蔽层中产生更大的磁晶各向异性。

7. 发明授权

US08804280B2 Actively synchronizing magnetic responses of a shield and a write pole 有权
标题翻译：主动同步屏蔽和写极的磁响应
公开(公告)号：US08804280B2
公开(公告)日：2014-08-12
申请号：US13365942
申请日：2012-02-03
申请人： Radek Lopusnik , Mourad Benakli , Kirill Aleksandrovich Rivkin , Declan Macken , James Gary Wessel , Jason Bryce Gadbois
发明人： Radek Lopusnik , Mourad Benakli , Kirill Aleksandrovich Rivkin , Declan Macken , James Gary Wessel , Jason Bryce Gadbois
IPC分类号： G11B5/127
CPC分类号： G11B5/312 , G11B5/315
摘要： In an example, a method of manufacturing a transducer head comprises configuring a control circuit to actively synchronize magnetic responses of a shield and a write pole during operation. The method also comprises configuring the control circuit to energize at least one coil wire during operation with a current direction opposite to current flow in a main transducer head coil. In another example, a method comprises actively synchronizing magnetic responses of a shield and a write pole. In another example, a transducer head comprises a write pole and a shield, and a control circuit actively synchronizes magnetic responses of the shield and the write pole.
摘要翻译：在一个示例中，制造换能器头的方法包括配置控制电路以在操作期间主动地同步屏蔽和写极的磁响应。所述方法还包括配置所述控制电路，以在操作期间以与主换能器头线圈中的电流相反的电流方向对至少一个线圈线供能。在另一示例中，一种方法包括主动地同步屏蔽和写极的磁响应。在另一示例中，换能器头包括写极和屏蔽，并且控制电路主动地同步屏蔽和写极的磁响应。

8. 发明申请

US20130083433A1 MAGNETIC TRANSDUCER 有权
标题翻译：磁性传感器
公开(公告)号：US20130083433A1
公开(公告)日：2013-04-04
申请号：US13248352
申请日：2011-09-29
申请人： Paul Julio Sonda , Edwin Frank Rejda , Declan Macken
发明人： Paul Julio Sonda , Edwin Frank Rejda , Declan Macken
IPC分类号： G11B5/127 , G11B5/60
CPC分类号： G11B5/3106 , G11B5/607
摘要： A magnetic head that includes: a slider having a leading edge and a trailing edge; and a transducer, the transducer formed on the trailing edge of the slider and the transducer including: a substrate; a basecoat positioned adjacent the substrate, wherein the basecoat includes a material having a Young's modulus that is less than that of alumina and a coefficient of thermal expansion that is less than that of alumina; a reader; a writer; a heater; and an overcoat encasing at least a portion of the transducer, wherein the overcoat includes a material having a Young's modulus that is less than that of alumina and a coefficient of thermal expansion that is less than that of alumina.
摘要翻译：一种磁头，包括：具有前缘和后缘的滑块; 以及换能器，形成在所述滑块和所述换能器的后缘上的所述换能器包括：基板; 邻近基底定位的底涂层，其中底涂层包括杨氏模量小于氧化铝的杨氏模量和小于氧化铝的热膨胀系数的材料; 一位读者; 一个作家; 加热器以及覆盖所述换能器的至少一部分的外套，其中所述外涂层包括杨氏模量小于氧化铝的材料和小于氧化铝的热膨胀系数的材料。

9. 发明授权

US08194360B2 Domain control in bottom shield of MR sensor 有权
标题翻译： MR传感器底屏蔽域控制
公开(公告)号：US08194360B2
公开(公告)日：2012-06-05
申请号：US12391404
申请日：2009-02-24
申请人： Declan Macken , Eric W. Singleton
发明人： Declan Macken , Eric W. Singleton
IPC分类号： G11B5/127
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3912 , G11B5/3932 , G11B2005/3996 , Y10T428/1171 , Y10T428/1193
摘要： A shield for a read element of a magnetic recording head includes a first domain with boundaries remote from the read element and stabilized with a patterned bias element. The patterned bias element comprises a topographical pattern of grooves formed on the shield substrate.
摘要翻译：用于磁记录头的读取元件的屏蔽件包括具有远离读取元件的边界的第一区域并且用图案化的偏置元件稳定。图案化的偏置元件包括形成在屏蔽衬底上的凹槽的形状图案。

10. 发明申请

US20120120519A1 Resistance Temperature Sensors for Head-Media and Asperity Detection 有权
标题翻译：电阻温度传感器用于头部介质和粗糙度检测
公开(公告)号：US20120120519A1
公开(公告)日：2012-05-17
申请号：US13299094
申请日：2011-11-17
申请人： Gary J. Kunkel , Huazhou Lou , Declan Macken , Timothy W. Stoebe
发明人： Gary J. Kunkel , Huazhou Lou , Declan Macken , Timothy W. Stoebe
IPC分类号： G11B21/12 , G11B5/02 , G11B5/455
CPC分类号： G11B5/607 , G01K13/00 , G11B5/024 , G11B5/3133 , G11B5/6011 , G11B5/6076 , G11B7/0948 , G11B7/121 , G11B20/10 , G11B27/36
摘要： A temperature sensor of a head transducer measures temperature near or at the close point. The measured temperature varies in response to changes in spacing between the head transducer and a magnetic recording medium. A detector is coupled to the temperature sensor and is configured to detect a change in a DC component of the measured temperature indicative of onset of contact between the head transducer and the medium. Another head transducer configuration includes a sensor having a sensing element with a high temperature coefficient of resistance to interact with asperities of the medium. Electrically conductive leads are connected to the sensing element and have a low temperature coefficient of resistance relative to that of the sensing element, such thermally induced resistance changes in the leads have a negligible effect on a response of the sensing element to contact with the asperities.
摘要翻译：头传感器的温度传感器测量靠近或接近的温度。测量的温度响应于头部换能器和磁记录介质之间的间隔的变化而变化。检测器耦合到温度传感器并且被配置为检测指示头部换能器和介质之间的接触开始的测量温度的DC分量的变化。另一个头部传感器配置包括传感器，该传感器具有具有高温度系数的传感元件，以与介质的粗糙度相互作用。导电引线连接到感测元件并且具有相对于感测元件的电阻的低温度系数，引线中的这种热感应电阻变化对感测元件与凹凸接触的响应具有可忽略的影响。

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