公开(公告)号：US08054581B2

公开(公告)日：2011-11-08

申请号：US12126274

申请日：2008-05-23

申请人： Toshinori Watanabe ,  Toru Takahashi

发明人： Toshinori Watanabe ,  Toru Takahashi

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： To provide a perpendicular magnetic recording head which can prevent unintentional recording and erasing from occurring on recording media.In a perpendicular magnetic recording head comprising a pair of side shield layers made of a soft magnetic material on both sides in a track width direction of a magnetic pole part of a main magnetic pole layer, the pair of side shield layers have a front end face exposed at a medium-opposing surface and a side end face extending from one end part of the front end face remote from the magnetic pole part in the track width direction to the deeper side in a height direction, while the front end face and the side end face form an angle of 90° or greater therebetween.

摘要翻译： 提供可以防止在记录介质上发生无意的记录和擦除的垂直磁记录头。 在包括由主磁极层的磁极部的轨道宽度方向上的两侧由软磁性材料构成的一对侧面屏蔽层的垂直磁记录头中，所述一对侧面屏蔽层具有前端面 暴露在中间相对表面和侧端面上，前端面和侧面从前端面的远离磁极部的轨道宽度方向的一端部向高度方向的较深侧延伸 端面在它们之间形成90°或更大的角度。

公开(公告)号：US07472470B2

公开(公告)日：2009-01-06

申请号：US11624332

申请日：2007-01-18

申请人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

发明人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main magnetic pore layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.

摘要翻译： 在平坦化面平坦化的绝缘层上形成有主要的磁性孔层，并且在主磁极层的下方形成具有大的膜厚的磁轭层，而与主磁极无关。 主磁极层的前端表面形成为具有随着前端表面离开辅助磁极层而在轨道宽度方向上逐渐增加的宽度尺寸的形状。 可以提供一种垂直磁记录头，其可以抑制记录图案中的边缘的发生，并且可以形成具有高图案精度的主磁极层，并且可以令人满意地将记录磁场引入主磁极的前端 层。

公开(公告)号：US20080019042A1

公开(公告)日：2008-01-24

申请号：US11780600

申请日：2007-07-20

申请人： Yusuke TOMA ,  Hiroshi Kameda ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Sumihito Morita ,  Toshinori Watanabe

发明人： Yusuke TOMA ,  Hiroshi Kameda ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Sumihito Morita ,  Toshinori Watanabe

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3123 ,  G11B5/3136 ,  G11B5/3912 ,  G11B5/3967

摘要： A perpendicular magnetic recording head includes a first magnetic layer having a main magnetic pole exposed at a medium-facing surface that faces a recording medium; a second magnetic layer that faces the first magnetic layer with a nonmagnetic layer interposed therebetween; and a coil layer for applying a recording magnetic field to the first magnetic layer. The second magnetic layer includes a relatively thick edge portion, whereby the edge-write magnetic field is reduced and the external magnetic field resistance is increased.

摘要翻译： 垂直磁记录头包括：第一磁性层，其具有在面向记录介质的面向中间的表面处暴露的主磁极; 面向第一磁性层的第二磁性层，介于其间的非磁性层; 以及用于向第一磁性层施加记录磁场的线圈层。 第二磁性层包括相对较厚的边缘部分，由此边缘写入磁场减小并且外部磁场电阻增加。

公开(公告)号：US20070115594A1

公开(公告)日：2007-05-24

申请号：US11624332

申请日：2007-01-18

申请人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

发明人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

IPC分类号： G11B5/33

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed on the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily-introduce a recording magnetic field to a fore end of the main magnetic pole layer.

摘要翻译： 在平坦化面平坦化的绝缘层上形成有主磁极层，独立于主磁极，在主磁极层上形成膜厚大的磁轭层。 主磁极层的前端表面形成为具有随着前端表面离开辅助磁极层而在轨道宽度方向上逐渐增加的宽度尺寸的形状。 可以提供一种垂直磁记录头，其可以抑制记录图案中的边缘的发生，并且可以以高图案精度形成主磁极层，并且可以令人满意地将记录磁场引入主磁体的前端 极层。

公开(公告)号：US07903371B2

公开(公告)日：2011-03-08

申请号：US11780600

申请日：2007-07-20

申请人： Yusuke Toma ,  Hiroshi Kameda ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Sumihito Morita ,  Toshinori Watanabe

发明人： Yusuke Toma ,  Hiroshi Kameda ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Sumihito Morita ,  Toshinori Watanabe

IPC分类号： G11B5/147 ,  G11B5/39

CPC分类号： G11B5/1278 ,  G11B5/3123 ,  G11B5/3136 ,  G11B5/3912 ,  G11B5/3967

摘要： A perpendicular magnetic recording head includes a first magnetic layer having a main magnetic pole exposed at a medium-facing surface that faces a recording medium; a second magnetic layer that faces the first magnetic layer with a nonmagnetic layer interposed therebetween; and a coil layer for applying a recording magnetic field to the first magnetic layer. The second magnetic layer includes a relatively thick edge portion, whereby the edge-write magnetic field is reduced and the external magnetic field resistance is increased.

摘要翻译： 垂直磁记录头包括：第一磁性层，其具有在面向记录介质的面向中的表面处暴露的主磁极; 面向第一磁性层的第二磁性层，介于其间的非磁性层; 以及用于向第一磁性层施加记录磁场的线圈层。 第二磁性层包括相对较厚的边缘部分，由此边缘写入磁场减小并且外部磁场电阻增加。

公开(公告)号：US20060002025A1

公开(公告)日：2006-01-05

申请号：US11222441

申请日：2005-09-08

申请人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

发明人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed on the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.

公开(公告)号：US06958886B2

公开(公告)日：2005-10-25

申请号：US10435414

申请日：2003-05-09

申请人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

发明人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/187

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed on the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.

摘要翻译： 在平坦化面平坦化的绝缘层上形成有主磁极层，独立于主磁极，在主磁极层上形成膜厚大的磁轭层。 主磁极层的前端表面形成为具有随着前端表面离开辅助磁极层而在轨道宽度方向上逐渐增加的宽度尺寸的形状。 可以提供一种垂直磁记录头，其可以抑制记录图案中的边缘的发生，并且可以以高图案精度形成主磁极层，并且可以令人满意地将记录磁场引入主磁极的前端 层。

公开(公告)号：US07181829B2

公开(公告)日：2007-02-27

申请号：US11222441

申请日：2005-09-08

申请人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

发明人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.

摘要翻译： 在平坦化面平坦化的绝缘层上形成有主磁极层，独立于主磁极，在主磁极层的下方形成有膜厚较大的磁轭层。 主磁极层的前端表面形成为具有随着前端表面离开辅助磁极层而在轨道宽度方向上逐渐增加的宽度尺寸的形状。 可以提供一种垂直磁记录头，其可以抑制记录图案中的边缘的发生，并且可以以高图案精度形成主磁极层，并且可以令人满意地将记录磁场引入主磁极的前端 层。

公开(公告)号：US20050168870A1

公开(公告)日：2005-08-04

申请号：US11016949

申请日：2004-12-20

申请人： Kiyoshi Sato ,  Toshinori Watanabe ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Hisayuki Yazawa ,  Masaki Ikegami ,  Hiromi Ikegami ,  Chiaki Ikegami

发明人： Kiyoshi Sato ,  Toshinori Watanabe ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Hisayuki Yazawa ,  Masaki Ikegami ,  Hiromi Ikegami ,  Chiaki Ikegami

IPC分类号： G11B5/31 ,  G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/312 ,  G11B5/313 ,  G11B5/3163

摘要： A thin-film magnetic head includes a lower core layer; a recording core formed on the lower core layer and exposed at a face surface facing a recording medium, the recording core including a gap layer, an upper pole layer, and optionally, a lower pole layer; an upper core layer magnetically coupled to the upper pole layer; and a coil. A tip surface of the upper core layer at the face surface is set back from the face surface in the height direction, and the tip surface is an inclined surface or a curved surface in which the depth gradually increases from the track width direction. A method for fabricating a thin-film magnetic head is also disclosed.

摘要翻译： 薄膜磁头包括下芯层; 记录芯，形成在下芯层上并在面向记录介质的表面上暴露，所述记录芯包括间隙层，上极层和可选的下极层; 磁性地耦合到上极层的上芯层; 和线圈。 上表面的上芯层的顶表面在高度方向上从表面返回，并且尖端表面是倾斜表面或深度从轨道宽度方向逐渐增加的曲面。 还公开了一种用于制造薄膜磁头的方法。

公开(公告)号：US06687084B2

公开(公告)日：2004-02-03

申请号：US10025131

申请日：2001-12-18

申请人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

发明人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

IPC分类号： G11B5127

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.

摘要翻译： 在平坦化面平坦化的绝缘层上形成有主磁极层，独立于主磁极，在主磁极层的下方形成有膜厚较大的磁轭层。 主磁极层的前端表面形成为具有随着前端表面离开辅助磁极层而在轨道宽度方向上逐渐增加的宽度尺寸的形状。 可以提供一种垂直磁记录头，其可以抑制记录图案中的边缘的发生，并且可以以高图案精度形成主磁极层，并且可以令人满意地将记录磁场引入主磁极的前端 层。