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：US20130321955A1

公开(公告)日：2013-12-05

申请号：US13961672

申请日：2013-08-07

Applicant: Seagate Technology LLC

Inventor： Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  Zhe Shen ,  Jiaoming Qiu ,  Huaqing Yin

IPC: G11B5/11

CPC classification number: G11B5/11 ,  G11B5/012 ,  G11B5/09 ,  G11B5/312 ,  G11B5/315

Abstract: An apparatus includes a write pole magnetically coupled to write coils that generate a first magnetic field during a switching event. The apparatus includes a shield at a media-facing surface and proximate the write pole. A conductive element is disposed proximate the shield and configured to generate a second magnetic field opposite to the first magnetic field during the switching event. A selected one of the write coils is located adjacent the shield separate from others of the write coils.

Abstract translation: 一种装置包括磁极耦合到写入线圈的写入磁极，其在切换事件期间产生第一磁场。 该装置包括位于面向媒体的表面并靠近写入极的屏蔽。 导电元件靠近屏蔽设置，并被配置为在切换事件期间产生与第一磁场相反的第二磁场。 写入线圈中的一个选择的一个写入线圈与写入线圈的其他部分分开设置在屏蔽件附近。

公开(公告)号：US20120314325A1

公开(公告)日：2012-12-13

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：US07703194B2

公开(公告)日：2010-04-27

申请号：US11688168

申请日：2007-03-19

Applicant: Brian E. Brusca ,  Joel S. Forrest ,  Richard Hsiao ,  James D. Jarratt ,  Brian R. York

Inventor： Brian E. Brusca ,  Joel S. Forrest ,  Richard Hsiao ,  James D. Jarratt ,  Brian R. York

IPC: G11B5/193

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/3109 ,  G11B5/312 ,  G11B5/313 ,  G11B5/3153 ,  G11B5/3163 ,  G11B5/3967 ,  G11B2005/3996 ,  H01F10/16 ,  Y10T29/49032 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T428/115 ,  Y10T428/32

Abstract: A method for creating a write element of a magnetic head according to one embodiment includes forming a first pole pedestal; forming a write gap layer above the first pole pedestal; forming a second pole pedestal above the write gap layer; and forming at least one of: a cap layer of CoFeON between the first pole pedestal and the write gap, and a seed layer of CoFeON between the write gap layer and the second pole pedestal. Note that other layers may be interspersed between those set forth here.

Abstract translation: 根据一个实施例的用于产生磁头的写入元件的方法包括：形成第一极基座; 在所述第一极基座上形成写间隙层; 在所述写间隙层上方形成第二极基座; 以及在所述第一极基座和所述写间隙之间形成CoFeON的覆盖层和所述写间隙层和所述第二极基座之间的CoFeON晶种层中的至少一个。 注意，其他层可以散布在这里列出的层之间。

公开(公告)号：US20100033879A1

公开(公告)日：2010-02-11

申请号：US12188706

申请日：2008-08-08

Applicant: Norikazu OTA ,  Tatsuhiro NOJIMA ,  Tsuyoshi UMEHARA

Inventor： Norikazu OTA ,  Tatsuhiro NOJIMA ,  Tsuyoshi UMEHARA

IPC: G11B5/33

CPC classification number: G11B5/1278 ,  G11B5/312 ,  G11B5/313

Abstract: A perpendicular magnetic head for writing information on a magnetic recording medium comprises an ABS, a coil for generating a magnetic flux, a magnetic pole layer, a magnetic shield layer, and a gap layer disposed between the magnetic pole layer and the magnetic shield layer. Further the magnetic head has a non-magnetic region of a non-magnetic material. The non-magnetic region is disposed in the magnetic shield layer and positioned behind the ABS at a predetermined distance. The non-magnetic region is also disposed in the magnetic shield layer and has a predetermined width. With such a configuration, an undesirable concentration of the magnetic flux on the ABS is prevented.

Abstract translation: 用于在磁记录介质上写入信息的垂直磁头包括ABS，用于产生磁通量的线圈，磁极层，磁屏蔽层和设置在磁极层和磁屏蔽层之间的间隙层。 此外，磁头具有非磁性材料的非磁性区域。 非磁性区域设置在磁屏蔽层中并且以预定距离定位在ABS后面。 非磁性区域也设置在磁屏蔽层中并且具有预定的宽度。 通过这样的结构，可以防止不均匀的磁通量集中在ABS上。

公开(公告)号：US07583472B2

公开(公告)日：2009-09-01

申请号：US10926895

申请日：2004-08-25

Applicant: Naoto Matono

Inventor： Naoto Matono

IPC: G11B5/127 ,  G11B5/147

CPC classification number: G11B5/312 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

Abstract: The present invention provides a thin film magnetic head capable of suppressing unintentional wiring to a neighboring track and preventing information recorded on a recording medium from being erased. A main magnetic pole layer is constructed so that height of a widened end surface in a lower main magnetic pole layer specifying a wide portion is smaller than height of an exposed surface in an upper main magnetic pole layer (front end portion) specifying a uniform width portion. Since the area of the widened end surface is narrowed with respect to the area of the exposed surface, even if an amount of magnetic flux flowing in the lower main magnetic pole layer increases at the time of recording information, as compared with the case where the height of the widened end surface is equal to the height of the exposed surface, unintentional emission of the magnetic flux flowing in the lower main magnetic pole layer from the widened end surface not via the upper main magnetic pole layer (front end portion) toward the recording medium is suppressed.

Abstract translation: 本发明提供一种薄膜磁头，其能够抑制对相邻磁道的无意的布线，并且防止记录在记录介质上的信息被擦除。 主磁极层被构造成使得指定宽的部分的下主要主磁极层中的加宽端面的高度小于指定均匀宽度的上主磁极层（前端部分）中的暴露表面的高度 一部分。 由于加宽端面的面积相对于露出面的面积变窄，所以即使在记录信息时在下侧主磁极层中流动的磁通量增加，与 加宽端面的高度等于暴露表面的高度，从而不会通过上主磁极层（前端部）向下侧主磁极层流过下侧主磁极层的磁通量的非故意发射 记录介质被抑制。

公开(公告)号：US07457079B2

公开(公告)日：2008-11-25

申请号：US10606108

申请日：2003-06-25

Applicant: Kazushi Ogawa ,  Teiichi Miyauchi ,  Tadashi Ozue

Inventor： Kazushi Ogawa ,  Teiichi Miyauchi ,  Tadashi Ozue

IPC: G11B5/17 ,  G11B5/255 ,  G11B5/31 ,  G11B5/53 ,  G11B5/265 ,  G11B5/39

CPC classification number: G11B5/3967 ,  G11B5/23 ,  G11B5/2452 ,  G11B5/3106 ,  G11B5/3109 ,  G11B5/3116 ,  G11B5/312 ,  G11B5/313 ,  G11B5/3146 ,  G11B5/3156 ,  G11B5/3903 ,  G11B5/4886 ,  G11B5/4893 ,  G11B5/53

Abstract: A thin film magnetic recording head comprises a substrate, a first magnetic core formed on the substrate, a second magnetic core having the front end face with a magnetic gap with respect to the front end face of the first magnetic core, and a coil for developing magnetic flux between the front end portions of the magnetic cores. A width of the second magnetic core at the front end portion thereof is chosen to be smaller than that of the first magnetic core. The second magnetic core is at a leading position relative to the second magnetic core in a traveling direction on a recording medium. In such configuration, it is possible to reduce side erase due to recording magnetic flux fringing and to achieve high density of magnetic recording while maintaining the conventional fabrication steps for the thin film magnetic recording head, thereby avoiding the problem in the fabrication.

Abstract translation: 薄膜磁记录头包括基板，形成在基板上的第一磁芯，具有相对于第一磁芯的前端面具有磁隙的前端面的第二磁芯和用于显影的线圈 磁芯的前端部之间的磁通量。 第二磁芯在其前端部分的宽度被选择为小于第一磁芯的宽度。 第二磁芯相对于第二磁芯在记录介质上的行进方向上处于前导位置。 在这种结构中，由于记录磁通边缘而可能减少侧面擦除并且在保持薄膜磁记录头的常规制造步骤的同时实现高密度的磁记录，从而避免了制造中的问题。

公开(公告)号：US07363700B2

公开(公告)日：2008-04-29

申请号：US11655465

申请日：2007-01-18

Applicant: Naoto Matono

Inventor： Naoto Matono

IPC: G11B5/127 ,  H04R31/00

CPC classification number: G11B5/3116 ,  G11B5/312 ,  G11B5/313 ,  G11B5/3163 ,  G11B5/3967 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

Abstract: The present invention provides a thin film magnetic head achieving improved recording performance by sharpening recording magnetic field gradient as much as possible. The thin film magnetic head has a return yoke layer disposed on a trailing side of a magnetic pole layer, and width W3 of an exposed surface of a lower TH specifying part in a TH specifying portion in the return yoke layer is equal to or larger than width W1 of an exposed surface of the magnetic pole layer (W3≧W1), and is less than width W4 of an exposed surface of an upper TH specifying part (W3

Abstract translation: 本发明提供一种通过尽可能地锐化记录磁场梯度来实现改进的记录性能的薄膜磁头。 薄膜磁头具有设置在磁极层的后侧的返回磁轭层，并且返回磁轭层中的TH指定部中的下TH指定部的暴露表面的宽度W 3等于或大于 （W 3> = W 1）的暴露表面的宽度W 1，并且小于上部TH指定部分（W 3

公开(公告)号：US07110218B2

公开(公告)日：2006-09-19

申请号：US10791858

申请日：2004-03-04

Applicant: Shunichi Narumi ,  Hiroyuki Hoshiya ,  Yohji Maruyama

Inventor： Shunichi Narumi ,  Hiroyuki Hoshiya ,  Yohji Maruyama

IPC: G11B5/147

CPC classification number: B82Y10/00 ,  G11B5/3116 ,  G11B5/312 ,  G11B5/3967 ,  Y10S977/724

Abstract: In a convention inductive head, since a large magnetic field is leaked from the end of the magnetic pole end of an upper magnetic core, at recording the recording magnetic field is applied to a recording media in a region larger than a desired track width, thereby damaging the adjacent information. In an inductive head according to the present invention, in order to efficiently carry a magnetic flux to a magnetic pole tip layer, the top surface of the rear end of the magnetic pole tip layer is etched away so as to connect the rear end of the magnetic pole tip layer to the front end of an upper magnetic core having a width larger than that of the rear end of the magnetic pole tip layer. It is possible to realize a recording head having a large recording magnetic field.

Abstract translation: 在惯例感应头中，由于大的磁场从上磁芯的磁极端的​​端部泄漏，所以在记录时，将记录磁场施加到大于期望磁道宽度的区域中的记录介质，由此 破坏相邻信息。 在根据本发明的感应头中，为了有效地将磁通量传送到磁极尖端层，磁极尖端层的后端的顶表面被蚀刻掉，以便将 磁极尖端层到具有比磁极末端层的后端大的宽度的上磁芯的前端。 可以实现具有大记录磁场的记录头。

公开(公告)号：US06738223B2

公开(公告)日：2004-05-18

申请号：US10134906

申请日：2002-04-29

Applicant: Kiyoshi Sato ,  Toshinori Watanabe

Inventor： Kiyoshi Sato ,  Toshinori Watanabe

IPC: G11B531

CPC classification number: G11B5/312 ,  G11B5/3116 ,  G11B5/313

Abstract: A thin-film magnetic head has a lower magnetic pole section including a front portion close to a face of the head opposing a recording medium. The front portion has side faces flush with side faces of an upper magnetic core layer formed above the lower magnetic pole section. The lower magnetic pole section does not protrude from the sides of the upper magnetic pole layer. A gap depth defining layer is formed above the lower magnetic core layer and under the upper magnetic pole layer below the upper core layer. Side faces of the gap depth defining layer and the lower magnetic pole section are flush with side faces of the upper magnetic pole layer and/or the upper core layer in the track width direction.

Abstract translation: 薄膜磁头具有下磁极部分，该磁极部分包括靠近与记录介质相对的头部的表面的前部。 前部具有与形成在下磁极部分上方的上磁芯层的侧面齐平的侧面。 下磁极部不从上磁极层的侧面突出。 间隙深度限定层形成在下磁芯层的上方，在上芯层下方的上磁极层的下方形成。 间隙深度限定层和下部磁极部的侧面与轨道宽度方向的上部磁极层和/或上部芯层的侧面齐平。