公开(公告)号：US08619509B1

公开(公告)日：2013-12-31

申请号：US13569408

申请日：2012-08-08

Applicant: Kirill Aleksandrovich Rivkin ,  Mourad Benakli ,  Ned Tabat

Inventor： Kirill Aleksandrovich Rivkin ,  Mourad Benakli ,  Ned Tabat

IPC: G11B11/00

CPC classification number: G11B5/1871 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/314 ,  G11B13/045 ,  G11B2005/0021 ,  Y10T29/49032

Abstract: In an example, a method comprises aligning a central axis of a paddle portion on a write pole circuit to be substantially perpendicular to an adjacent magnetic surface, and bending a central axis of an extended tip portion relative to the central axis of the paddle portion. In another example, a transducer head comprises a write pole circuit having a paddle portion with a central axis, and an extended tip portion with a central axis, the central axis of the extended tip portion angled from the central axis of the paddle portion. In another example, a magnetic circuit comprises a write pole circuit having a paddle portion and an extended tip portion, the extended tip portion bending away from a central axis of the paddle portion, and a coil wrapping around the extended tip portion.

公开(公告)号：US08582237B2

公开(公告)日：2013-11-12

申请号：US13158719

申请日：2011-06-13

Applicant: James Gary Wessel ,  Mourad Benakli ,  Raul Horacio Andruet ,  Kirill A. Rivkin ,  Sarbeswar Sahoo

Inventor： James Gary Wessel ,  Mourad Benakli ,  Raul Horacio Andruet ,  Kirill A. Rivkin ,  Sarbeswar Sahoo

IPC: G11B5/127

CPC classification number: G11B5/235 ,  G11B5/1278 ,  G11B5/312 ,  G11B5/3143 ,  G11B5/315

Abstract: A selectively magnetic insert that is capable of enhancing magnetic writing, such as in use as a data transducing head. In accordance with various embodiments, a write pole is in contact with a selectively magnetic insert that decouples the write pole from at least one adjacent shield in response a powered operation.

Abstract translation: 一种选择性磁性插入件，其能够增强磁性写入，例如用作数据传感头。 根据各种实施例，写极与选择性磁性插入件接触，该选择性磁性插入件响应于动力操作将写入极与至少一个相邻的屏蔽分离。

公开(公告)号：US20130016442A1

公开(公告)日：2013-01-17

申请号：US13609657

申请日：2012-09-11

Applicant: Mourad Benakli ,  Sharat Batra

Inventor： Mourad Benakli ,  Sharat Batra

IPC: G11B5/10

CPC classification number: G11B5/3116 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315

Abstract: A magnetic recording head includes a magnetic recording write element including a main pole having a leading edge and an opposing trailing edge and a first side surface and a second side surface separating the leading edge from the trailing edge. A first side shield gap separates a first side shield from the first side of the main pole and a second side shield gap separates the second side shield from the second side of the main pole. A front magnetic shield is separated from the main pole trailing edge by a front shield gap. A recess extends into the front shield adjacent to the trailing edge, and parallel to the trailing edge. The recess extends laterally away from the main pole and into the front shield a distance greater than the first side shield gap or second side shield gap.

Abstract translation: 磁记录头包括磁记录写元件，该磁记录写元件包括具有前缘和相对后缘的主极和分离前缘与后缘的第一侧表面和第二侧表面。 第一侧屏蔽间隙将第一侧屏蔽与主极的第一侧分开，并且第二侧屏蔽间隙将第二侧屏蔽与主极的第二侧分离。 前磁屏蔽通过前屏蔽间隙与主极后缘分离。 凹槽与后缘相邻地延伸到前屏蔽件中，并且平行于后缘。 凹部从主极横向延伸并且远离第一侧屏蔽间隙或第二侧屏蔽间隙的距离远离前屏蔽。

公开(公告)号：US20110310511A1

公开(公告)日：2011-12-22

申请号：US12819998

申请日：2010-06-21

Applicant: Harry S. Edelman ,  David C. Seets ,  Mourad Benakli ,  Kirill A. Rivkin

Inventor： Harry S. Edelman ,  David C. Seets ,  Mourad Benakli ,  Kirill A. Rivkin

IPC: G11B5/115

CPC classification number: G11B5/1278 ,  G11B5/3116 ,  G11B5/315

Abstract: An apparatus that includes a write element including a write element tip having a leading edge, a trailing edge, and first and second side edges connecting the leading edge to the trailing edge, wherein the trailing edge is non-planar; a trailing shield proximate the trailing edge of the write element; a first side shield proximate the first side edge; and a second edge proximate the second side edge.

Abstract translation: 一种包括写入元件的装置，该写入元件包括具有前缘，后缘以及连接前缘与后缘的第一和第二侧边缘的写入元件尖端，其中后缘是非平面的; 靠近写入元件的后沿的尾部屏蔽; 靠近第一侧边缘的第一侧面屏蔽; 以及靠近第二侧边缘的第二边缘。

公开(公告)号：US20090004509A1

公开(公告)日：2009-01-01

申请号：US11771440

申请日：2007-06-29

Applicant: Mourad Benakli ,  Michael L. Mallary

Inventor： Mourad Benakli ,  Michael L. Mallary

IPC: G11B5/33 ,  B05D1/36

CPC classification number: G11B5/855

Abstract: A patterned magnetic media is disclosed. The patterned media includes etched recording portions including etched portions of a soft magnetic underlayer. In illustrated embodiments, the soft magnetic layer is etched to form recording bits or etched soft magnetic segments to enhance magnetic field strength in the magnetic recording portions. In other embodiments, soft magnetic layers are deposited in etched regions or areas of the media.

Abstract translation: 公开了一种图案化的磁性介质。 图案化介质包括蚀刻记录部分，其包括软磁性底层的蚀刻部分。 在所示的实施例中，软磁层被蚀刻以形成记录位或蚀刻的软磁段，以增强磁记录部分中的磁场强度。 在其他实施例中，软磁性层沉积在介质的蚀刻区域或区域中。

公开(公告)号：US07430095B2

公开(公告)日：2008-09-30

申请号：US11786266

申请日：2007-04-11

Applicant: Mourad Benakli ,  Michael Mallary ,  Adam F. Torabi

Inventor： Mourad Benakli ,  Michael Mallary ,  Adam F. Torabi

IPC: G11B5/127

CPC classification number: G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3116 ,  Y10T29/49032 ,  Y10T29/49052

Abstract: A write pole for a read/write head of a disk drive system has a tapered surface on a leading edge thereof. Preferably, the tapered surface has a taper angle of between 0 and 20 degrees from a plane normal to the ABS. By having a write pole with a taper in this manner, sufficient write fields can be achieved even with thinner write pole tips on the ABS surface. By decreasing the thickness of the write pole tip in this manner while maintaining sufficiently high write fields, the skew profile of a write head can be decreased and areal density increased.

公开(公告)号：US07372664B1

公开(公告)日：2008-05-13

申请号：US11005885

申请日：2004-12-06

Applicant: Michael Mallary ,  Mourad Benakli

Inventor： Michael Mallary ,  Mourad Benakli

IPC: G11B5/147

CPC classification number: G11B5/3123 ,  G11B5/1278 ,  G11B5/17 ,  G11B5/1871 ,  G11B5/3116

Abstract: Techniques for reducing adjacent track erasure include: a bucking coil having a lower number of turns than the write coil for bucking out a portion of the field induced by the write coil; a hybrid solenoid coil that includes turns that are in a pancake arrangement and turns that are in a solenoid arrangement; a P2 write pole tip with an increasing amount of flare as the distance from the ABS increases; a notch along an edge of the ABS surface of the P1 write pole adjacent to a tooth that extends closest to the P2 write pole; a back notch adjacent to the tooth on the P1 write pole that has a width generally corresponding to the width of the tooth; and a layered structure on the pole tip of the P1 write pole adjacent to the tooth, the layers having at least one of decreasing amounts of saturation magnetization, decreasing amounts of permeability, or alternating layers of magnetic and nonmagnetic material, where the width of the magnetic and nonmagnetic layers in controlled or the characteristics of the magnetic layers are controlled with regard to saturation magnetization or magnetic permeability to effectively decrease the overall saturation magnetization or permeability.

Abstract translation: 用于减少相邻轨迹擦除的技术包括：具有比写入线圈少的匝数的降压线圈，用于抵消由写入线圈引起的场的一部分; 一种混合电磁线圈，其包括处于螺旋排列的薄煎饼布置和转动的匝; 随着距离ABS的距离增加，P2写入磁极尖随着扩张量的增加而增加; 沿着P1写入极的ABS表面的边缘的切口，其与最接近P2写入极的齿相邻; 与P1写入极上的齿相邻的后槽，其宽度通常对应于齿的宽度; 以及在邻近牙齿的P1写入极的极尖上的分层结构，这些层具有减小量的饱和磁化强度，降低的磁导率或磁性和非磁性材料的交替层中的至少一种，其中， 在饱和磁化强度或磁导率方面控制磁性层和磁性层的磁性层和非磁性层，以有效降低整体饱和磁化强度或磁导率。

公开(公告)号：US20080024912A1

公开(公告)日：2008-01-31

申请号：US11838364

申请日：2007-08-14

Applicant: Michael Mallary ,  Mourad Benakli

Inventor： Michael Mallary ,  Mourad Benakli

IPC: G11B5/127

CPC classification number: G11B5/3123 ,  G11B5/1278 ,  G11B5/17 ,  G11B5/1871 ,  G11B5/3116

Abstract: Techniques for reducing adjacent track erasure include: a bucking coil having a lower number of turns than the write coil for bucking out a portion of the field induced by the write coil; a hybrid solenoid coil that includes turns that are in a pancake arrangement and turns that are in a solenoid arrangement; a P2 write pole tip with an increasing amount of flare as the distance from the ABS increases; a notch along an edge of the ABS surface of the P1 write pole adjacent to a tooth that extends closest to the P2 write pole; a back notch adjacent to the tooth on the P1 write pole that has a width generally corresponding to the width of the tooth; and a layered structure on the pole tip of the P1 write pole adjacent to the tooth, the layers having at least one of decreasing amounts of saturation magnetization, decreasing amounts of permeability, or alternating layers of magnetic and nonmagnetic material, where the width of the magnetic and nonmagnetic layers is controlled or the characteristics of the magnetic layers are controlled with regard to saturation magnetization or magnetic permeability to effectively decrease the overall saturation magnetization or permeability.

Abstract translation: 用于减少相邻轨迹擦除的技术包括：具有比写入线圈少的匝数的降压线圈，用于抵消由写入线圈引起的场的一部分; 一种混合电磁线圈，其包括处于螺旋排列的薄煎饼布置和转动的匝; 随着距离ABS的距离增加，P2写入磁极尖随着扩张量的增加而增加; 沿着P1写入极的ABS表面的边缘的切口，其与最接近P2写入极的齿相邻; 与P1写入极上的齿相邻的后槽，其宽度通常对应于齿的宽度; 以及在邻近牙齿的P1写入极的极尖上的分层结构，这些层具有减小量的饱和磁化强度，降低的磁导率或磁性和非磁性材料的交替层中的至少一种，其中， 控制磁性和非磁性层，或者磁饱和磁化强度或磁导率控制磁性层的特性，以有效降低整体饱和磁化强度或磁导率。

公开(公告)号：US08804280B2

公开(公告)日：2014-08-12

申请号：US13365942

申请日：2012-02-03

Applicant: Radek Lopusnik ,  Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  Declan Macken ,  James Gary Wessel ,  Jason Bryce Gadbois

Inventor： Radek Lopusnik ,  Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  Declan Macken ,  James Gary Wessel ,  Jason Bryce Gadbois

IPC: G11B5/127

CPC classification number: G11B5/312 ,  G11B5/315

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08422167B1

公开(公告)日：2013-04-16

申请号：US11739989

申请日：2007-04-25

Applicant: Mourad Benakli ,  Michael Mallary ,  Amet Kaya

Inventor： Mourad Benakli ,  Michael Mallary ,  Amet Kaya

IPC: G11B5/127

CPC classification number: G11B5/1278 ,  G11B5/3116

Abstract: A magnetic writer is formed with a texture on a surface of a write pole, preferably on a surface associated with the trailing edge of the writer. This texturing results in, in effect, a magnon-magnon scattering process that increases the surface damping of the pole and thus decreases the write field rise time. Rare earth elements can also be added in amounts sufficient to further increase the damping.

Abstract translation: 在写极的表面上，优选地在与写入器的后缘相关联的表面上形成具有纹理的磁性写入器。 这种纹理实际上导致了增加极的表面阻尼并因此减小写入场上升时间的磁子 - 磁子分子过程。 还可以以足以进一步增加阻尼的量添加稀土元素。