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1. 发明授权

US07948716B2 Magnetic head for perpendicular magnetic recording with a shield and a pole layer having a top surface with first and second portions at different heights, and method of manufacturing same 有权
标题翻译：用于具有屏蔽的垂直磁记录的磁头和具有在不同高度处具有第一和第二部分的顶表面的极层及其制造方法
公开(公告)号：US07948716B2
公开(公告)日：2011-05-24
申请号：US11806828
申请日：2007-06-04
申请人： Naoto Matono , Koichi Otani , Tatsuya Harada , Noriaki Kasahara , Takamitsu Sakamoto , Hiroaki Kawashima , Hirotaka Gomi , Kenkichi Anagawa , Norikazu Ota
发明人： Naoto Matono , Koichi Otani , Tatsuya Harada , Noriaki Kasahara , Takamitsu Sakamoto , Hiroaki Kawashima , Hirotaka Gomi , Kenkichi Anagawa , Norikazu Ota
IPC分类号： G11B5/33
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/6064
摘要： A magnetic head includes: a coil; a pole layer; a shield having an end face located in a medium facing surface forward of an end face of the pole layer along a direction of travel of a recording medium; a gap layer between the shield and the pole layer; and a substrate on which the foregoing elements are stacked. The top surface of the pole layer includes: first and second portions with a difference in height therebetween; and a third portion connecting the first and second portions to each other. The first portion has an edge located in the medium facing surface, and the second portion is located farther from the medium facing surface and from the substrate than the first portion. The magnetic head further includes a nonmagnetic layer disposed between the second portion and the gap layer. The nonmagnetic layer has a surface touching the second portion, the surface having an edge located at the boundary between the second and third portions. The nonmagnetic layer has a thickness equal to or greater than the difference in height between the first and second portions.
摘要翻译：磁头包括：线圈; 极层; 屏蔽，其具有沿着记录介质的行进方向位于所述极层的端面的前方的面向介质的表面中的端面; 屏蔽层和极层之间的间隙层; 以及其上堆叠上述元件的基板。极层的顶表面包括：第一和第二部分之间的高度差异; 以及将第一和第二部分彼此连接的第三部分。第一部分具有位于介质面向表面中的边缘，并且第二部分位于比第一部分更远离介质面向表面和基板的位置。磁头还包括设置在第二部分和间隙层之间的非磁性层。非磁性层具有接触第二部分的表面，该表面具有位于第二和第三部分之间的边界处的边缘。非磁性层的厚度等于或大于第一和第二部分之间的高度差。

2. 发明申请

US20080297953A1 Magnetic head for perpendicular magnetic recording with a shield and method of manufacturing same 有权
标题翻译：用于垂直磁记录的磁头及其制造方法
公开(公告)号：US20080297953A1
公开(公告)日：2008-12-04
申请号：US11806828
申请日：2007-06-04
申请人： Naoto Matono , Koichi Otani , Tatsuya Harada , Noriaki Kasahara , Takamitsu Sakamoto , Hiroaki Kawashima , Hirotaka Gomi , Kenkichi Anagawa , Norikazu Ota
发明人： Naoto Matono , Koichi Otani , Tatsuya Harada , Noriaki Kasahara , Takamitsu Sakamoto , Hiroaki Kawashima , Hirotaka Gomi , Kenkichi Anagawa , Norikazu Ota
IPC分类号： G11B5/10
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/6064
摘要： A magnetic head includes: a coil; a pole layer; a shield having an end face located in a medium facing surface forward of an end face of the pole layer along a direction of travel of a recording medium; a gap layer between the shield and the pole layer; and a substrate on which the foregoing elements are stacked. The top surface of the pole layer includes: first and second portions with a difference in height therebetween; and a third portion connecting the first and second portions to each other. The first portion has an edge located in the medium facing surface, and the second portion is located farther from the medium facing surface and from the substrate than the first portion. The magnetic head further includes a nonmagnetic layer disposed between the second portion and the gap layer. The nonmagnetic layer has a surface touching the second portion, the surface having an edge located at the boundary between the second and third portions. The nonmagnetic layer has a thickness equal to or greater than the difference in height between the first and second portions.
摘要翻译：磁头包括：线圈; 极层; 屏蔽，其具有沿着记录介质的行进方向位于所述极层的端面的前方的面向介质的表面中的端面; 屏蔽层和极层之间的间隙层; 以及其上堆叠上述元件的基板。极层的顶表面包括：第一和第二部分之间的高度差异; 以及将第一和第二部分彼此连接的第三部分。第一部分具有位于介质面向表面中的边缘，并且第二部分位于比第一部分更远离介质面向表面和基板的位置。磁头还包括设置在第二部分和间隙层之间的非磁性层。非磁性层具有接触第二部分的表面，该表面具有位于第二和第三部分之间的边界处的边缘。非磁性层的厚度等于或大于第一和第二部分之间的高度差。

3. 发明授权

US08102623B2 Thin-film magnetic head with a magnetic pole having an inclined step at its top end section surface, magnetic head assembly with the thin-film magnetic head, magnetic disk drive apparatus with the magnetic head assembly, and manufacturing method of thin-film magnetic head 有权
标题翻译：具有在其顶端部分表面具有倾斜台阶的磁极的薄膜磁头，具有薄膜磁头的磁头组件，具有磁头组件的磁盘驱动装置以及薄膜磁头的制造方法
公开(公告)号：US08102623B2
公开(公告)日：2012-01-24
申请号：US11848778
申请日：2007-08-31
申请人： Kenkichi Anagawa , Norikazu Ota
发明人： Kenkichi Anagawa , Norikazu Ota
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163 , Y10T29/49048
摘要： A thin-film magnetic head with a perpendicular magnetic recording structure includes a main pole layer, a nonmagnetic gap layer, and an auxiliary pole layer facing the main pole layer via the nonmagnetic gap layer. A surface of a top end section of the main pole layer has an inclined step that slopes from a lamination plane of the layers. The surface faces a top end section of the auxiliary pole layer. The top end section of the auxiliary pole layer has side shield sections at a position that is not exposed to an ABS. The side shield sections faces at least part of side surfaces in a track-width direction, of the main pole layer so as to cover at least part of the inclined step.
摘要翻译：具有垂直磁记录结构的薄膜磁头包括主极层，非磁性间隙层和经由非磁性间隙层面向主极层的辅助极层。主极层的顶端部分的表面具有从层的层叠平面倾斜的倾斜台阶。表面面对辅助极层的顶端部分。辅助极层的顶端部分在不暴露于ABS的位置处具有侧屏蔽部分。侧屏蔽部分面向主极层的轨道宽度方向上的侧表面的至少一部分，以便覆盖至少部分倾斜台阶。

4. 发明授权

US07961428B2 Thin-film magnetic head having magnetic layer with non-magnetic layer therewithin 有权
标题翻译：具有非磁性层的磁性层的薄膜磁头
公开(公告)号：US07961428B2
公开(公告)日：2011-06-14
申请号：US11769497
申请日：2007-06-27
申请人： Kenkichi Anagawa , Hiraku Hirabayashi
发明人： Kenkichi Anagawa , Hiraku Hirabayashi
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3136 , G11B5/3143
摘要： Provided is a thin-film magnetic having improved write characteristics in the high-frequency band. The head comprises an electromagnetic coil element comprising upper and lower magnetic layers, a write gap layer and a write coil layer, and in the electromagnetic coil element, at least one non-magnetic layer is provided within the upper magnetic layer, and further, an upper surface, a lower surface, at least a portion of a front surface and at least a portion of a rear surface of the non-magnetic layer are covered with magnetic material of at least one of the upper magnetic layer and the lower magnetic layer.
摘要翻译：提供了在高频带中具有改进的写入特性的薄膜磁体。头部包括包括上下磁性层的电磁线圈元件，写入间隙层和写入线圈层，并且在电磁线圈元件中，在上部磁性层内提供至少一个非磁性层，此外，上表面，下表面，非磁性层的前表面的至少一部分和后表面的至少一部分被上磁性层和下磁性层中的至少一个的磁性材料覆盖。

5. 发明授权

US08233237B2 Perpendicular magnetic write head and magnetic recording device 有权
标题翻译：垂直磁头和磁记录装置
公开(公告)号：US08233237B2
公开(公告)日：2012-07-31
申请号：US12819552
申请日：2010-06-21
申请人： Kenkichi Anagawa , Katsuki Kurihara , Takeo Kagami , Kei Hirata , Minoru Ota
发明人： Kenkichi Anagawa , Katsuki Kurihara , Takeo Kagami , Kei Hirata , Minoru Ota
IPC分类号： G11B5/31
CPC分类号： G11B5/3146 , G11B5/1278 , G11B5/235 , G11B5/315
摘要： A main magnetic-pole layer is provided with, at the tip end portion thereof, a trailing shied on the trailing side via a non-magnetic gap layer, and the non-magnetic gap layer includes therein one or more magnetic layers. This magnetic layer appropriately controls the amount of magnetic fluxes coming from the tip end portion of the main magnetic-pole layer for capturing into the trailing shield because the magnetic fluxes coming from the tip end portion of the main magnetic-pole layer go through the magnetic layer before being captured into the trailing shield.
摘要翻译：主磁极层在其末端部分经由非磁隙层在后侧设置有尾部，非磁性间隙层包括一个或多个磁性层。该磁性层适当地控制来自主磁极层的前端部分的磁通量，用于捕获到后屏蔽件中，因为来自主磁极层的末端部分的磁通量通过磁在被捕获到后盾之前。

6. 发明申请

US20090034121A1 Magnetic head for perpendicular magnetic recording with coil wound around pole layer 有权
标题翻译：用于垂直磁记录的磁头，线圈缠绕在磁极层上
公开(公告)号：US20090034121A1
公开(公告)日：2009-02-05
申请号：US11882029
申请日：2007-07-30
申请人： Naoki Ohta , Kenkichi Anagawa
发明人： Naoki Ohta , Kenkichi Anagawa
IPC分类号： G11B5/127
CPC分类号： G11B5/3123 , G11B5/1278
摘要： A magnetic head includes a medium facing surface, a coil, and a pole layer that generates a write magnetic field. The pole layer includes: a track width defining portion having a first end located in the medium facing surface and a second end opposite to the first end; and a wide portion connected to the second end. The first end defines the track width. The track width defining portion has a width taken in the track width direction, and the wide portion has a width taken in the track width direction that is greater than the width of the track width defining portion taken in the track width direction. The coil is helically wound only around the track width defining portion of the pole layer, and has a portion located between the medium facing surface and the wide portion.
摘要翻译：磁头包括面向介质的表面，线圈和产生写磁场的极层。极层包括：轨道宽度限定部分，其具有位于介质面对表面中的第一端和与第一端相对的第二端; 并且宽部分连接到第二端。第一端定义轨道宽度。轨道宽度限定部分具有在轨道宽度方向上取的宽度，并且宽部分具有在轨道宽度方向上取宽度大于沿着轨道宽度方向拍摄的轨道宽度限定部分的宽度的宽度。线圈仅围绕极层的轨道宽度限定部分螺旋缠绕，并且具有位于介质面向表面和宽部分之间的部分。

7. 发明授权

US08472137B2 Magnetic head and method of manufacture thereof wherein the head includes a pole layer and non-magnetic layer having a continuous tapered face opposed to a trailing shield 有权
标题翻译：磁头及其制造方法，其中头部包括具有与后护罩相对的连续锥形面的极层和非磁性层
公开(公告)号：US08472137B2
公开(公告)日：2013-06-25
申请号：US12845349
申请日：2010-07-28
申请人： Kei Hirata , Kenkichi Anagawa , Michitaka Nishiyama , Hideyuki Yatsu , Shin Narushima , Hisayoshi Watanabe , Tatsuhiro Nojima
发明人： Kei Hirata , Kenkichi Anagawa , Michitaka Nishiyama , Hideyuki Yatsu , Shin Narushima , Hisayoshi Watanabe , Tatsuhiro Nojima
IPC分类号： G11B5/187 , G11B5/23
CPC分类号： G11B5/6082 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： The present invention relates to a magnetic head, a manufacturing method therefor, a head assembly, and a magnetic recording/reproducing apparatus. According to the present invention, it includes a magnetic pole layer, a non-magnetic layer, a trailing gap layer, and a trailing shield layer. The magnetic pole layer has a pole tip exposed on a magnetic medium-facing surface. The non-magnetic layer is laid on the magnetic pole layer. The trailing shield layer is exposed on the magnetic medium-facing surface and laid over the magnetic pole layer and the non-magnetic layer with the trailing gap layer between. The magnetic pole layer and the non-magnetic layer have a continuous tapered face opposed to a lower side of the trailing shield layer. Moreover, the tapered face extends from a trailing edge of the pole tip at a constant inclination angle.
摘要翻译：磁头及其制造方法技术领域本发明涉及一种磁头及其制造方法，磁头组件以及磁记录/重放装置。根据本发明，它包括磁极层，非磁性层，后隙层和后屏蔽层。磁极层具有暴露在面向磁介质的表面上的极尖。非磁性层铺设在磁极层上。后屏蔽层暴露在面向磁介质的表面上，并铺设在磁极层和非磁性层之间，后隙间隔在其间。磁极层和非磁性层具有与后屏蔽层的下侧相对的连续锥形面。此外，锥形面从极尖的后缘以恒定的倾斜角度延伸。

8. 发明申请

US20120140361A1 MAGNETIC HEAD, HEAD ASSEMBLY, AND MAGNETIC RECORDING/REPRODUCING APPARATUS TO REDUCE RISK OF WIDE AREA TRACK ERASE 有权
标题翻译：磁头，头组件和磁记录/再现设备，以减少风险的区域跟踪删除
公开(公告)号：US20120140361A1
公开(公告)日：2012-06-07
申请号：US12961939
申请日：2010-12-07
申请人： Minoru OTA , Kei Hirata , Kenkichi Anagawa
发明人： Minoru OTA , Kei Hirata , Kenkichi Anagawa
IPC分类号： G11B5/127 , G11B21/24
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , G11B19/045
摘要： A magnetic head includes a main magnetic pole layer and a yoke layer. The main magnetic pole layer generates a magnetic flux of a recording magnetic field and includes a magnetic pole front part and a magnetic pole rear part. The yoke layer is disposed at the magnetic pole rear part and includes a yoke front part and a yoke rear part. The magnetic pole front part extends on a magnetic medium-facing surface side of the magnetic pole rear part with a width in a track width direction being smaller than that of the magnetic pole rear part. The yoke front part extends on the magnetic medium-facing surface side of the yoke rear part with a width in the track width direction being larger than that of the magnetic pole rear part and that of the yoke rear part.
摘要翻译：磁头包括主磁极层和磁轭层。主磁极层产生记录磁场的磁通量，并包括磁极前部和磁极后部。磁轭层设置在磁极后部，并且包括磁轭前部和磁轭后部。磁极前部在磁极后部的面向磁性介质的表面侧延伸，磁道宽度方向的宽度小于磁极后部的宽度。磁轭前部在磁轭后部的面向磁介质的表面侧延伸，磁道宽度方向上的宽度大于磁极后部和磁轭后部的宽度。

9. 发明申请

US20120026629A1 MAGNETIC HEAD, MANUFACTURING METHOD THEREFOR, HEAD ASSEMBLY, AND MAGNETIC RECORDING/REPRODUCING APPARATUS 有权
标题翻译：磁头及其制造方法，头组件和磁记录/再现装置
公开(公告)号：US20120026629A1
公开(公告)日：2012-02-02
申请号：US12845349
申请日：2010-07-28
申请人： Kei HIRATA , Kenkichi Anagawa , Michitaka Nishiyama , Hideyuki Yatsu , Shin Narushima , Hisayoshi Watanabe , Tatsuhiro Nojima
发明人： Kei HIRATA , Kenkichi Anagawa , Michitaka Nishiyama , Hideyuki Yatsu , Shin Narushima , Hisayoshi Watanabe , Tatsuhiro Nojima
IPC分类号： G11B5/23 , G11B5/187 , G11B5/56
CPC分类号： G11B5/6082 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： The present invention relates to a magnetic head, a manufacturing method therefor, a head assembly, and a magnetic recording/reproducing apparatus. According to the present invention, it includes a magnetic pole layer, a non-magnetic layer, a trailing gap layer, and a trailing shield layer. The magnetic pole layer has a pole tip exposed on a magnetic medium-facing surface. The non-magnetic layer is laid on the magnetic pole layer. The trailing shield layer is exposed on the magnetic medium-facing surface and laid over the magnetic pole layer and the non-magnetic layer with the trailing gap layer between. The magnetic pole layer and the non-magnetic layer have a continuous tapered face opposed to a lower side of the trailing shield layer. Moreover, the tapered face extends from a trailing edge of the pole tip at a constant inclination angle.
摘要翻译：磁头及其制造方法技术领域本发明涉及一种磁头及其制造方法，磁头组件以及磁记录/重放装置。根据本发明，它包括磁极层，非磁性层，后隙层和后屏蔽层。磁极层具有暴露在面向磁介质的表面上的极尖。非磁性层铺设在磁极层上。后屏蔽层暴露在面向磁介质的表面上，并铺设在磁极层和非磁性层之间，后隙间隔在其间。磁极层和非磁性层具有与后屏蔽层的下侧相对的连续锥形面。此外，锥形面从极尖的后缘以恒定的倾斜角度延伸。

10. 发明授权

US07817376B2 Thin-film magnetic head having magnetic layer with non-magnetic portion 失效
标题翻译：具有非磁性部分的磁性层的薄膜磁头
公开(公告)号：US07817376B2
公开(公告)日：2010-10-19
申请号：US11738686
申请日：2007-04-23
申请人： Hiraku Hirabayashi , Kenkichi Anagawa
发明人： Hiraku Hirabayashi , Kenkichi Anagawa
IPC分类号： G11B5/127 , G11B5/147
CPC分类号： G11B5/3116 , G11B5/1872 , G11B5/314
摘要： Provided is a thin-film magnetic head capable of suppressing ATE while ensuring sufficient controllability of the magnetic pole width and sufficient write field intensity. The head includes an electromagnetic coil element comprising: upper and lower magnetic layers; a write gap layer; and a write coil layer, the lower magnetic layer comprising: a lower yoke layer, a non-magnetic portion formed on an end portion on the ABS side of the lower yoke layer and extending to a head end surface on the ABS side; and a lower magnetic pole layer, an upper surface of the lower magnetic pole layer being in contact with the write gap layer, and an end surface in the head end surface of the lower magnetic pole layer having a shape whose width along a track width direction is defined by a predetermined magnetic pole width.
摘要翻译：提供一种能够抑制ATE的薄膜磁头，同时确保磁极宽度的足够可控性和足够的写入场强度。头部包括电磁线圈元件，包括：上和下磁性层; 写间隙层; 以及写入线圈层，所述下磁性层包括：下磁轭层，形成在所述下轭铁层的ABS侧的端部上并延伸到所述ABS侧的头端面的非磁性部; 和下磁极层，下磁极层的上表面与写间隙层接触，下磁极层的头端面的端面具有沿着磁道宽度方向的宽度的形状由预定的磁极宽度限定。

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