公开(公告)号：US20050229387A1

公开(公告)日：2005-10-20

申请号：US11041266

申请日：2005-01-25

申请人： Yuichi Watabe ,  Susumu Aoki ,  Yasuyuki Notsuke ,  Tetsuya Roppongi

发明人： Yuichi Watabe ,  Susumu Aoki ,  Yasuyuki Notsuke ,  Tetsuya Roppongi

IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/147

CPC分类号： G11B5/147 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3163 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49048 ,  Y10T29/4906

摘要： A main pole layer of a magnetic head includes a first portion disposed at a distance from a medium facing surface, and a second portion that is smaller in thickness than the first portion and disposed between the first portion and the medium facing surface. The step of forming the main pole layer includes the steps of forming a plating layer such that one of ends of the plating layer closer to the medium facing surface is located at a position that coincides with the position of one of ends of the first portion closer to the medium facing surface; forming a first nonmagnetic layer to cover the plating layer; polishing the first nonmagnetic layer and the plating layer; forming a space by removing the plating layer; forming a magnetic layer, which will be the main pole layer, in the space and on the top surface of the first nonmagnetic layer; forming a second nonmagnetic layer to cover the magnetic layer; and polishing the second nonmagnetic layer and the magnetic layer.

摘要翻译： 磁头的主极层包括设置在与介质相对表面一定距离处的第一部分，以及第二部分，该第二部分的厚度小于第一部分，并且设置在第一部分和介质面向表面之间。 形成主极层的步骤包括以下步骤：形成电镀层，使得电镀层的靠近介质相对表面的端部之一位于与第一部分的端部中的一个端部的位置相近的位置处 到面向中间的表面; 形成覆盖所述镀层的第一非磁性层; 抛光第一非磁性层和镀层; 通过去除镀层形成空间; 在第一非磁性层的空间和顶表面上形成作为主极层的磁性层; 形成第二非磁性层以覆盖所述磁性层; 并研磨第二非磁性层和磁性层。

公开(公告)号：US07219414B2

公开(公告)日：2007-05-22

申请号：US11041266

申请日：2005-01-25

申请人： Yuichi Watabe ,  Susumu Aoki ,  Yasuyuki Notsuke ,  Tetsuya Roppongi

发明人： Yuichi Watabe ,  Susumu Aoki ,  Yasuyuki Notsuke ,  Tetsuya Roppongi

IPC分类号： G11B5/187 ,  C25D5/102

CPC分类号： G11B5/147 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3163 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49048 ,  Y10T29/4906

摘要： A main pole layer of a magnetic head includes a first portion disposed at a distance from a medium facing surface, and a second portion that is smaller in thickness than the first portion and disposed between the first portion and the medium facing surface. The step of forming the main pole layer includes the steps of forming a plating layer such that one of ends of the plating layer closer to the medium facing surface is located at a position that coincides with the position of one of ends of the first portion closer to the medium facing surface; forming a first nonmagnetic layer to cover the plating layer; polishing the first nonmagnetic layer and the plating layer; forming a space by removing the plating layer; forming a magnetic layer, which will be the main pole layer, in the space and on the top surface of the first nonmagnetic layer; forming a second nonmagnetic layer to cover the magnetic layer; and polishing the second nonmagnetic layer and the magnetic layer.

摘要翻译： 磁头的主极层包括设置在与介质相对表面一定距离处的第一部分，以及第二部分，该第二部分的厚度小于第一部分，并且设置在第一部分和介质面向表面之间。 形成主极层的步骤包括以下步骤：形成电镀层，使得电镀层的靠近介质相对表面的端部之一位于与第一部分的端部中的一个端部的位置相近的位置处 到面向中间的表面; 形成覆盖所述镀层的第一非磁性层; 抛光第一非磁性层和镀层; 通过去除镀层形成空间; 在第一非磁性层的空间和顶表面上形成作为主极层的磁性层; 形成第二非磁性层以覆盖所述磁性层; 并研磨第二非磁性层和磁性层。

公开(公告)号：US07154707B2

公开(公告)日：2006-12-26

申请号：US10805408

申请日：2004-03-22

申请人： Yuichi Watabe ,  Norikazu Ota ,  Yasuyuki Notsuke ,  Susumu Aoki ,  Tetsuya Roppongi ,  Naoto Matono

发明人： Yuichi Watabe ,  Norikazu Ota ,  Yasuyuki Notsuke ,  Susumu Aoki ,  Tetsuya Roppongi ,  Naoto Matono

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/313 ,  G11B5/3967

摘要： Provided is a thin film magnetic head capable of securing recording characteristics even in the case where a return pole layer is disposed on a medium-outgoing side of the pole layer. The return yoke layer is disposed on a trailing side of the pole layer, and a neck height NH is within a range of NH≦W1 (a width of a front end portion in a main pole layer)+0.05 μm, and a height ratio (a ratio of the neck height NH to a throat height TH) NH/TH is within a range of 0.5

摘要翻译： 提供了即使在极性层的介质输出侧设置返回极层的情况下也能够确保记录特性的薄膜磁头。 返回轭层设置在极层的后侧，颈部高度NH在NH <= W 1（主极层的前端部的宽度）+0.05μm的范围内，并且 高度比（颈部高度NH与喉部高度TH的比）NH / TH在0.5

公开(公告)号：US07245454B2

公开(公告)日：2007-07-17

申请号：US10832274

申请日：2004-04-27

申请人： Susumu Aoki ,  Yasuyuki Notsuke ,  Yuichi Watabe ,  Norikazu Ota ,  Tetsuya Roppongi

发明人： Susumu Aoki ,  Yasuyuki Notsuke ,  Yuichi Watabe ,  Norikazu Ota ,  Tetsuya Roppongi

IPC分类号： G11B5/31 ,  G11B5/23

CPC分类号： G11B5/1278

摘要： A write head of a magnetic head for vertical magnetic recording comprises: a coil; a main pole layer that allows the magnetic flux corresponding to the magnetic field generated by the coil to pass therethrough and generates a write magnetic field; an auxiliary pole layer; a gap layer provided between the main pole layer and the auxiliary pole layer; and a yoke layer for magnetically coupling the main pole layer to the auxiliary pole layer. The main pole layer has a flat top surface. In the main pole layer the position in which the thickness starts to increase is located between the medium facing surface and the position in which the width starts to increase.

摘要翻译： 用于垂直磁记录的磁头的写头包括：线圈; 主极层，其允许对应于由线圈产生的磁场的磁通量通过，并产生写入磁场; 辅助极层; 设置在主极层和辅助极层之间的间隙层; 以及用于将主极层磁耦合到辅助极层的磁轭层。 主极层具有平坦的顶表面。 在主极层中，厚度开始增加的位置位于介质相对表面和宽度开始增加的位置之间。

公开(公告)号：US06728064B2

公开(公告)日：2004-04-27

申请号：US10097566

申请日：2002-03-15

申请人： Yoshikazu Sato ,  Tetsuya Roppongi ,  Yasuyuki Notsuke

发明人： Yoshikazu Sato ,  Tetsuya Roppongi ,  Yasuyuki Notsuke

IPC分类号： G11B5187

CPC分类号： G11B5/3967 ,  G11B5/3116 ,  G11B5/313

摘要： A thin-film magnetic head comprises first and second magnetic layers, a gap layer provided between the first and second magnetic layers, and a thin-film coil at least a part of which is disposed between the first and second magnetic layers. The second magnetic layer has a pole portion layer, a yoke portion layer, and a coupling portion. The yoke portion layer is magnetically connected to the rear end surface of the pole portion layer and both side surfaces of the pole portion layer in the width direction. The rear end surface of the pole portion layer and the side surfaces of the pole portion layer in the width direction are each inclined relative to the direction perpendicular to the surface of the pole portion layer that faces the gap layer.

摘要翻译： 薄膜磁头包括第一和第二磁性层，设置在第一和第二磁性层之间的间隙层，以及薄膜线圈，其至少一部分设置在第一和第二磁性层之间。 第二磁性层具有磁极部分层，磁轭部分层和耦合部分。 磁轭部分层磁极连接到磁极部分层的后端表面和磁极部分层的宽度方向的两个侧表面。 磁极部分层的后端表面和磁极部分层在宽度方向上的侧表面各自相对于垂直于磁极部分层表面的方向倾斜，面向间隙层。

公开(公告)号：US07206166B2

公开(公告)日：2007-04-17

申请号：US10638366

申请日：2003-08-12

申请人： Yasuyuki Notsuke ,  Akihiro Oda ,  Tetsuya Roppongi

发明人： Yasuyuki Notsuke ,  Akihiro Oda ,  Tetsuya Roppongi

IPC分类号： G11B5/187

CPC分类号： G11B5/1871 ,  G11B5/012 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/313 ,  G11B2005/0029

摘要： Provided is a thin film magnetic head which enables both ensuring overwrite characteristics and preventing an adverse effect resulting from side erase, such as degradation in an output signal. An exposed surface of a magnetic pole portion layer is configured to have the shape of an asymmetric inverted trapezoid corresponding to a remaining region which remains after removing a width increasing region in the shape of a right triangle from a rectangular region on the side of a side edge. The side edge of the exposed surface is caused to correspond to the side on which a magnetic flux emitted from the magnetic pole portion layer onto a target track of a hard disk causes information to unintentionally overwrite existing information recorded on an adjacent track. This configuration allows preventing the exposed surface from extending to the adjacent track, thus preventing the adverse effect resulting from side erase.

摘要翻译： 提供一种薄膜磁头，其能够确保重写特性并且防止由于诸如输出信号的劣化的侧面擦除引起的不利影响。 磁极部分层的暴露表面被配置为具有对应于从侧面侧面的矩形区域去除直角三角形形状的宽度增加区域后剩余的剩余区域的不对称倒梯形的形状 边缘。 导致暴露表面的侧边缘对应于从磁极部分层发射到硬盘的目标轨道上的磁通使信息无意地覆盖记录在相邻轨道上的现有信息的一侧。 这种构造允许防止暴露的表面延伸到相邻的轨道，从而防止由侧面擦除引起的不利影响。

公开(公告)号：US06952325B2

公开(公告)日：2005-10-04

申请号：US10318153

申请日：2002-12-13

申请人： Yoshikazu Sato ,  Yuko Motegi ,  Tetsuya Roppongi ,  Yasuyuki Notsuke

发明人： Yoshikazu Sato ,  Yuko Motegi ,  Tetsuya Roppongi ,  Yasuyuki Notsuke

IPC分类号： G11B5/31 ,  G11B5/39 ,  G11B5/187

CPC分类号： G11B5/313 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/3967

摘要： Provided is a thin film magnetic head capable of ensuring the strength of a perpendicular magnetic field and improving recording performance. A bottom pole portion layer and a top pole portion layer constituting a part of a main magnetic pole are formed so that a cross sectional area of a complex including front end portions of the bottom pole portion layer and the top pole portion layer is smaller than a cross sectional area of a complex including rear end portions thereof, and a width of a top edge in an exposed surface is larger than a width of a bottom edge, and is equal to or larger than a width of the exposed surface in a middle position between the top edge and the bottom edge. In recording, magnetic fluxes flowing in a main magnetic pole are focused toward an air bearing surface, and are concentrated on the front end portion of the top pole portion layer which is a main emitting portion of the magnetic fluxes, so sufficient magnetic fluxes can be supplied to the air bearing surface.

摘要翻译： 提供一种能够确保垂直磁场的强度并提高记录性能的薄膜磁头。 形成构成主磁极的一部分的底极部分层和顶极部分层，使得包括底极部分层和顶极部分层的前端部分的复合物的截面积小于 包括其后端部分的复合体的横截面积和暴露表面中的顶部边缘的宽度大于底部边缘的宽度，并且等于或大于在中间位置的暴露表面的宽度 在顶边和底边之间。 在记录中，在主磁极中流动的磁通量朝向空气轴承表面聚焦，并且集中在作为磁通量的主要发射部分的顶极部分层的前端部分上，因此足够的磁通量可以 供应到空气轴承表面。

公开(公告)号：US20080180858A1

公开(公告)日：2008-07-31

申请号：US12010160

申请日：2008-01-22

申请人： Norikazu Ota ,  Tetsuya Roppongi ,  Yuichi Watabe

发明人： Norikazu Ota ,  Tetsuya Roppongi ,  Yuichi Watabe

IPC分类号： G11B5/33

CPC分类号： G11B5/3116 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3163 ,  G11B5/3967

摘要： Provided are a perpendicular magnetic write head capable of achieving the high performance and stability in the writing performance, and a method of manufacturing the same. On a trailing side of a main magnetic pole layer, disposed are a gap layer extending backward from an air bearing surface and an auxiliary magnetic pole layer extending backward from a position recessed from the air bearing surface. The auxiliary magnetic pole layer is partially overlapped on the gap layer. In case the auxiliary magnetic pole layer is formed using etching method in the process of manufacturing the perpendicular magnetic write head, the gap layer has a function as an etching stopper layer so that the main magnetic pole layer is protected; thereby the already-formed main magnetic pole layer is not subjected to etching.

摘要翻译： 提供能够实现写入性能的高性能和稳定性的垂直磁性写入头及其制造方法。 在主磁极层的后侧设置有从空气轴承表面向后延伸的间隙层和从空气轴承表面凹陷的位置向后延伸的辅助磁极层。 辅助磁极层部分地重叠在间隙层上。 在制造垂直写磁头的过程中，使用蚀刻方法形成辅助磁极层的情况下，间隙层具有作为蚀刻停止层的功能，从而保护主磁极层; 因此已经形成的主磁极层不进行蚀刻。

公开(公告)号：US20080151436A1

公开(公告)日：2008-06-26

申请号：US11907095

申请日：2007-10-09

申请人： Isamu Sato ,  Tetsuya Roppongi ,  Yuichi Watabe ,  Norikazu Ota ,  Hiroshi Ikeda ,  Mikio Matsuzaki

发明人： Isamu Sato ,  Tetsuya Roppongi ,  Yuichi Watabe ,  Norikazu Ota ,  Hiroshi Ikeda ,  Mikio Matsuzaki

IPC分类号： G11B5/33

CPC分类号： G11B5/3123 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/743 ,  G11B2005/0005

摘要： Provided is a thin-film magnetic head capable of writing data with high accuracy on a magnetic recording medium having high coercive force without heating. The head comprises an electromagnetic coil element comprising: a main magnetic pole; an auxiliary magnetic pole; and a write coil formed so as to pass through at least between the main magnetic pole and the auxiliary magnetic pole, for generating the write magnetic field. In this head, a part of the write coil has a layered structure of: a resonance coil layer for generating a resonance magnetic field having ferromagnetic resonance frequency of a magnetic recording layer of a magnetic recording medium or having a frequency in the vicinity thereof; and a write coil layer. And further, the resonance coil layer and the write coil layer sandwich an insulating layer therebetween.

摘要翻译： 提供了一种能够在没有加热的情况下在具有高矫顽力的磁记录介质上高精度地写入数据的薄膜磁头。 头部包括电磁线圈元件，包括：主磁极; 辅助磁极; 以及形成为至少在主磁极和辅助磁极之间通过的用于产生写入磁场的写入线圈。 在该磁头中，写入线圈的一部分具有以下结构：谐振线圈层，用于产生具有磁记录介质的磁记录层的铁磁共振频率或其附近频率的共振磁场; 和写入线圈层。 此外，共振线圈层和写入线圈层之间夹有绝缘层。

公开(公告)号：US07920357B2

公开(公告)日：2011-04-05

申请号：US11907095

申请日：2007-10-09

申请人： Isamu Sato ,  Tetsuya Roppongi ,  Yuichi Watabe ,  Norikazu Ota ,  Hiroshi Ikeda ,  Mikio Matsuzaki

发明人： Isamu Sato ,  Tetsuya Roppongi ,  Yuichi Watabe ,  Norikazu Ota ,  Hiroshi Ikeda ,  Mikio Matsuzaki

IPC分类号： G11B5/17

CPC分类号： G11B5/3123 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/743 ,  G11B2005/0005

摘要： Provided is a thin-film magnetic head capable of writing data with high accuracy on a magnetic recording medium having high coercive force without heating. The head comprises an electromagnetic coil element comprising: a main magnetic pole; an auxiliary magnetic pole; and a write coil formed so as to pass through at least between the main magnetic pole and the auxiliary magnetic pole, for generating the write magnetic field. In this head, a part of the write coil has a layered structure of: a resonance coil layer for generating a resonance magnetic field having ferromagnetic resonance frequency of a magnetic recording layer of a magnetic recording medium or having a frequency in the vicinity thereof; and a write coil layer. And further, the resonance coil layer and the write coil layer sandwich an insulating layer therebetween.

摘要翻译： 提供了一种能够在没有加热的情况下在具有高矫顽力的磁记录介质上高精度地写入数据的薄膜磁头。 头部包括电磁线圈元件，包括：主磁极; 辅助磁极; 以及形成为至少在主磁极和辅助磁极之间通过的用于产生写入磁场的写入线圈。 在该磁头中，写入线圈的一部分具有以下结构：谐振线圈层，用于产生具有磁记录介质的磁记录层的铁磁共振频率或其附近频率的共振磁场; 和写入线圈层。 此外，共振线圈层和写入线圈层之间夹有绝缘层。