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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。
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公开(公告)号：US07298587B2
公开(公告)日：2007-11-20
申请号：US10309682
申请日：2002-12-04
申请人： Taras G. Pokhil , Ned Tabat , Martin L. Plumer , Steven P. Bozeman , Nurul Amin
发明人： Taras G. Pokhil , Ned Tabat , Martin L. Plumer , Steven P. Bozeman , Nurul Amin
IPC分类号： G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3113 , G11B5/3116 , G11B5/332 , G11B5/3967 , G11B2005/3996
摘要： A magnetic recording head having an air bearing surface for confronting a surface of a rotating disc and comprising a pole tip and a generally rounded and substantially planar body attached to the pole tip is disclosed. The width of the pole tip defines a track width of data written to the rotating disc. The generally rounded shape of the top pole body is such that top pole magnetization gradually changes its direction and follows the edges of the body. Further, the pole tip has low remanence, gradual spin structure and no domain walls formed near the pole tip.
摘要翻译： 公开了一种磁记录头，其具有用于面对旋转盘的表面的空气轴承表面，并且包括极尖和连接到极尖的大致圆形且基本上平坦的主体。 极尖的宽度限定写入旋转盘的数据的轨迹宽度。 顶极体的大致圆形形状使得顶极磁化逐渐改变其方向并跟随身体的边缘。 此外，极尖具有低的剩磁，逐渐的自旋结构，并且在极尖附近没有形成畴壁。
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公开(公告)号：US09449618B2
公开(公告)日：2016-09-20
申请号：US12427534
申请日：2009-04-21
CPC分类号： G11B5/1278 , G11B2005/001
摘要： A microwave assisted magnetic recording system includes a write pole that generates a write magnetic field, an element that generates a radio frequency assist magnetic field, and a recording medium that moves relative to the write pole. The recording medium is exposed to the radio frequency assist magnetic field before it is exposed to the write magnetic field. One possible element that generates the radio frequency assist magnetic field is an assist wire placed perpendicular to the write pole. Alternatively, the assist wire can be placed parallel to the write pole so that its radio frequency assist magnetic field couples with the write pole, which in turn generates its own coupled radio frequency magnetic field along with the write magnetic field.
摘要翻译： 微波辅助磁记录系统包括产生写入磁场的写入极，产生射频辅助磁场的元件和相对于写入极运动的记录介质。 记录介质在暴露于写入磁场之前暴露于射频辅助磁场。 产生射频辅助磁场的一个可能元件是垂直于写入极放置的辅助线。 或者，辅助线可以平行于写入极放置，使得其射频辅助磁场与写入磁极耦合，该写入磁极又与写入磁场一起产生其自身的耦合的射频磁场。
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4.发明授权Perpendicular magnetic recording head with nonmagnetic write gap greater than twice side shield gap distance 失效垂直磁记录头具有非磁性写入间隙大于两倍的屏蔽间隙距离公开(公告)号：US06954340B2
公开(公告)日：2005-10-11
申请号：US10113988
申请日：2002-04-01
申请人： Alexander M. Shukh , Ned Tabat
发明人： Alexander M. Shukh , Ned Tabat
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/1278 , G11B5/1871 , G11B5/3116 , G11B5/312 , G11B5/315
摘要： A magnetic head for perpendicular recording on double layer media with suppressed side writing and controlled write width is disclosed. The present invention reduces the problem of side writing and controls the write width of the writing element by providing a writing element with a trailing edge sized dimensionally larger than the leading edge, side shields, and specifically spaced writing gaps placed at various distances between the write element and the side shields, return poles, and the main pole.
摘要翻译： 公开了一种用于垂直记录在双层介质上的磁头，具有抑制的侧面写入和受控的写入宽度。 本发明通过提供具有尺寸尺寸大于前缘，侧面屏蔽以及放置在写入之间的各种距离处的特别间隔的写入间隙的写入元件，通过提供写入元件的写入宽度来减小写入元件的写入宽度，并且控制写入元件的写入宽度 元件和侧面屏蔽，返回极和主极。
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公开(公告)号：US20050088784A1
公开(公告)日：2005-04-28
申请号：US10691164
申请日：2003-10-22
申请人： Declan Macken , Jeremy Thurn , Lance Stover , Ned Tabat , John Pendray
发明人： Declan Macken , Jeremy Thurn , Lance Stover , Ned Tabat , John Pendray
CPC分类号： G11B5/6005 , G11B5/187 , G11B5/3106 , G11B5/3133 , G11B5/314 , G11B5/483
摘要： A slider includes a slider body having a trailing edge and a leading edge. The slider also includes a thin film structure deposited in layers on the trailing edge. The thin film structure includes a write transducer configured to read and write to a storage medium. The thin film structure also includes a non-thermally activated actuator at least partially formed with the write transducer and configured to move the write transducer relative to the trailing edge.
摘要翻译： 滑块包括具有后缘和前缘的滑块体。 滑块还包括沉积在后缘上的层的薄膜结构。 薄膜结构包括配置成读取和写入存储介质的写入传感器。 薄膜结构还包括非热致动致动器，其至少部分地由写入传感器形成并被配置为相对于后缘移动写入传感器。
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公开(公告)号：US07064933B2
公开(公告)日：2006-06-20
申请号：US10691164
申请日：2003-10-22
IPC分类号： G11B5/58
CPC分类号： G11B5/6005 , G11B5/187 , G11B5/3106 , G11B5/3133 , G11B5/314 , G11B5/483
摘要： A slider includes a slider body having a trailing edge and a leading edge. The slider also includes a thin film structure deposited in layers on the trailing edge. The thin film structure includes a write transducer configured to read and write to a storage medium. The thin film structure also includes a non-thermally activated actuator at least partially formed with the write transducer and configured to move the write transducer relative to the trailing edge.
摘要翻译： 滑块包括具有后缘和前缘的滑块体。 滑块还包括沉积在后缘上的层的薄膜结构。 薄膜结构包括配置成读取和写入存储介质的写入传感器。 薄膜结构还包括非热致动致动器，其至少部分地由写入传感器形成并被配置为相对于后缘移动写入传感器。
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7.发明授权公开(公告)号：US07142398B2
公开(公告)日：2006-11-28
申请号：US10210608
申请日：2002-08-01
申请人： Eric L. Granstrom , Ned Tabat
发明人： Eric L. Granstrom , Ned Tabat
IPC分类号： G11G51/127
CPC分类号： G11B5/3903 , G11B5/3103 , G11B5/3106 , G11B5/40 , G11B5/60
摘要： A magnetoresistive head assembly of the present invention includes a magnetoresistive sensor and an electrostatic discharge and electrical overstress protection circuit. The magnetoresistive sensor is capable of having conducted therethrough oppositely-directed first direction current and second direction current. The magnetoresistive sensor is sensitive to first direction currents in excess of a first predetermined value and to second direction currents in excess of a second predetermined value different than the first predetermined value. The electrostatic discharge and electrical overstress protection circuit is electrically connected to the magnetoresistive sensor for preventing only those first direction currents greater than the first predetermined value from flowing though the magnetoresistive sensor and only those second direction currents greater than the second predetermined value from flowing through the magnetoresistive sensor.
摘要翻译： 本发明的磁阻头组件包括磁阻传感器和静电放电和电过载保护电路。 磁阻传感器能够穿过相反方向的第一方向电流和第二方向电流。 磁阻传感器对超过第一预定值的第一方向电流和超过不同于第一预定值的第二预定值的第二方向电流敏感。 静电放电和电过载保护电路电连接到磁阻传感器，用于仅防止大于第一预定值的那些第一方向电流流过磁阻传感器，并且只有那些大于第二预定值的第二方向电流流过 磁阻传感器
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8.发明授权公开(公告)号：US07031109B1
公开(公告)日：2006-04-18
申请号：US10317598
申请日：2002-12-11
IPC分类号： G11B5/147
CPC分类号： G11B5/40 , G11B5/3133 , G11B5/3906 , G11B33/1493
摘要： The invention includes a magnetic recording head that has at least one structure or substructure that is made of a semiconductor material that protects the head from damage or destruction arising from stray current flow or unwanted electrostatic discharge during manufacture, assembly or use. The semiconductor material acts as a dissipative pathway to drain unwanted charges from the structure. The invention also includes a magnetic recording head that includes a substrate and a reader portion in the substrate, the substrate comprising a semiconductor material.
摘要翻译： 本发明包括磁记录头，其具有由半导体材料制成的至少一个结构或子结构，该半结构材料保护头免于在制造，组装或使用过程中由杂散电流或不期望的静电放电引起的损坏或破坏。 该半导体材料作为从结构中排出不想要的电荷的耗散途径。 本发明还包括磁记录头，其包括衬底和衬底中的读取器部分，该衬底包括半导体材料。
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公开(公告)号：US06728082B2
公开(公告)日：2004-04-27
申请号：US09824528
申请日：2001-04-02
申请人： Ned Tabat , Paul E. Kupinski
发明人： Ned Tabat , Paul E. Kupinski
IPC分类号： G11B5127
CPC分类号： G11B5/4806 , G11B5/3906 , G11B5/40
摘要： A magnetoresistive transducer includes a substrate and a magnetoresistive assembly. At least one bleed resistor couples the magnetoresistive assembly to the substrate. The bleed resistor has a relative large electrical resistance and provides a discharge path for accumulated charge. The arrangement effectively prevents electrostatic discharge damage to the sensor.
摘要翻译： 磁阻换能器包括衬底和磁阻组件。 至少一个放电电阻器将磁阻组件耦合到衬底。 放电电阻具有相对较大的电阻，并提供用于累积电荷的放电路径。 该装置有效地防止传感器的静电放电损坏。
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公开(公告)号：US5808384A
公开(公告)日：1998-09-15
申请号：US869789
申请日：1997-06-05
申请人： Ned Tabat , Henry Guckel
发明人： Ned Tabat , Henry Guckel
CPC分类号： H02K33/00 , Y10S310/06
摘要： Micromechanical actuators capable of bidirectional and bistable operation can be formed on substrates using lithographic processing techniques. Bistable operation of the microactuator is obtained using a single coil and a magnetic core with a gap. A plunger having two magnetic heads is supported for back and forth linear movement with respect to the gap in the magnetic core, and is spring biased to a neutral position in which the two heads are on each side of the gap in the core. The single electrical coil is coupled to the core and is provided with electrical current to attract one of the heads toward the core by reluctance action to drive the plunger to a limit of travel in one direction. The current is then cut off and the plunger returns by spring action toward the gap, whereafter the current is reapplied to the coil to attract the other head of the plunger by reluctance action to drive the plunger to its other limit of travel. This process can be repeated at a time when switching of the actuator is required.
摘要翻译： 可以使用光刻处理技术在基板上形成能够双向和双向运行的微机械致动器。 使用单个线圈和具有间隙的磁芯获得微致动器的双稳态操作。 具有两个磁头的柱塞被支撑用于相对于磁芯中的间隙的往复线性运动，并且被弹簧偏置到中间位置，在该中间位置，两个磁头位于磁芯的间隙的每一侧上。 单个电线圈耦合到铁芯并且被提供有电流以通过磁阻作用来吸引其中一个磁头朝向磁芯，以将柱塞驱动到在一个方向上行进的极限。 然后将电流切断，并且柱塞通过弹簧作用向间隙返回，然后电流重新施加到线圈以通过磁阻作用吸引柱塞的另一个头部，以将柱塞驱动到其另一个行进限制。 在需要切换致动器时，可以重复该过程。
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