公开(公告)号：US07843665B2

公开(公告)日：2010-11-30

申请号：US11518210

申请日：2006-09-11

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Takehiro Horinaka ,  Hironori Araki ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Takehiro Horinaka ,  Hironori Araki ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/31

CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49046

摘要： A magnetic head including an encasing layer having a groove; a nonmagnetic metal layer that has a sidewall located directly above the edge of the groove and that is disposed on a region of the encasing layer away from the medium facing surface; two side shield layers that have sidewalls located directly above the edge of the groove and that are disposed adjacent to the nonmagnetic metal layer on regions of the encasing layer closer to the medium facing surface than the nonmagnetic metal layer; and a pole layer. The pole layer is placed in an encasing section formed of the groove of the encasing layer, the sidewall of the nonmagnetic metal layer, and the sidewalls of the two side shield layers.

摘要翻译： 一种磁头，包括具有槽的封装层; 非磁性金属层，其具有位于所述槽的边缘正上方的侧壁，并且所述侧壁设置在所述封装层的远离所述介质面向表面的区域上; 两个侧面屏蔽层，其具有位于所述凹槽边缘正上方的侧壁，并且在所述封装层的与所述非磁性金属层相比更靠近介质面向表面的区域上邻近所述非磁性金属层设置; 和极层。 极层被放置在由包装层的槽，非磁性金属层的侧壁和两个侧面屏蔽层的侧壁形成的包围部分中。

公开(公告)号：US20080068747A1

公开(公告)日：2008-03-20

申请号：US11518210

申请日：2006-09-11

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Takehiro Horinaka ,  Hironori Araki ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Takehiro Horinaka ,  Hironori Araki ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49046

摘要： A magnetic head comprises: an encasing layer having a groove; a nonmagnetic metal layer that has a sidewall located directly above the edge of the groove and that is disposed on a region of the encasing layer away from the medium facing surface; two side shield layers that have sidewalls located directly above the edge of the groove and that are disposed adjacent to the nonmagnetic metal layer on regions of the encasing layer closer to the medium facing surface than the nonmagnetic metal layer; and a pole layer. The pole layer is placed in an encasing section formed of the groove of the encasing layer, the sidewall of the nonmagentic metal layer, and the sidewalls of the two side shield layers. The two side shield layers have end faces located in the medium facing surface on both sides of the end face of the pole layer, the sides being opposed to each other in the direction of track width.

摘要翻译： 磁头包括：具有凹槽的封装层; 非磁性金属层，其具有位于所述槽的边缘正上方的侧壁，并且所述侧壁设置在所述封装层的远离所述介质面向表面的区域上; 两个侧面屏蔽层，其具有位于所述凹槽边缘正上方的侧壁，并且在所述封装层的与所述非磁性金属层相比更靠近介质面向表面的区域上邻近所述非磁性金属层设置; 和极层。 极层被放置在由包装层的凹槽，非金属金属层的侧壁和两个侧面屏蔽层的侧壁形成的包围部分中。 两个侧面屏蔽层的端面位于磁极层的端面的两侧的面向介质的表面中，这些侧面在磁道宽度方向上彼此相对。

公开(公告)号：US07551394B2

公开(公告)日：2009-06-23

申请号：US11484575

申请日：2006-07-12

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki ,  Dong-Hong Li ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki ,  Dong-Hong Li ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/187 ,  G11B5/39

CPC分类号： G11B5/1278

摘要： A magnetic head comprises a pole layer, a shield layer, a gap layer disposed between the pole layer and the shield layer, and a coil. The shield layer incorporates a first layer, a second layer, a third layer and a fourth layer that are disposed on the gap layer one by one. The first layer has an end face located in a medium facing surface. The second layer has: a first surface located in the medium facing surface; a second surface touching the first layer; and a third surface opposite to the second surface. The third layer touches the third surface of the second layer. An end face of each of the third and fourth layers closer to the medium facing surface is located at a distance from the medium facing surface.

摘要翻译： 磁头包括极层，屏蔽层，设置在极层和屏蔽层之间的间隙层和线圈。 屏蔽层包括一个一个地设置在间隙层上的第一层，第二层，第三层和第四层。 第一层具有位于面向介质的表面中的端面。 第二层具有：位于介质相对表面中的第一表面; 接触第一层的第二表面; 和与第二表面相对的第三表面。 第三层接触第二层的第三表面。 更靠近介质相对表面的第三层和第四层中的每一层的端面位于与介质相对表面一定距离处。

公开(公告)号：US20080013209A1

公开(公告)日：2008-01-17

申请号：US11484575

申请日：2006-07-12

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki ,  Dong-Hong Li ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki ,  Dong-Hong Li ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/127

CPC分类号： G11B5/1278

摘要： A magnetic head comprises a pole layer, a shield layer, a gap layer disposed between the pole layer and the shield layer, and a coil. The shield layer incorporates a first layer, a second layer, a third layer and a fourth layer that are disposed on the gap layer one by one. The first layer has an end face located in a medium facing surface. The second layer has: a first surface located in the medium facing surface; a second surface touching the first layer; and a third surface opposite to the second surface. The third layer touches the third surface of the second layer. An end face of each of the third and fourth layers closer to the medium facing surface is located at a distance from the medium facing surface.

摘要翻译： 磁头包括极层，屏蔽层，设置在极层和屏蔽层之间的间隙层和线圈。 屏蔽层包括一个一个地设置在间隙层上的第一层，第二层，第三层和第四层。 第一层具有位于面向介质的表面中的端面。 第二层具有：位于介质相对表面中的第一表面; 接触第一层的第二表面; 和与第二表面相对的第三表面。 第三层接触第二层的第三表面。 更靠近介质相对表面的第三层和第四层中的每一层的端面位于与介质相对表面一定距离处。

公开(公告)号：US20080024911A1

公开(公告)日：2008-01-31

申请号：US11492945

申请日：2006-07-26

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/127

CPC分类号： G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3116 ,  G11B5/315

摘要： A shield incorporates: a first layer, a second layer, a third layer, a first coupling portion, and a second coupling portion. The first layer has: a first surface located in a region of a medium facing surface forward of an end face of a pole layer along the direction of travel of a recording medium; a second surface opposed to the pole layer; and a third surface opposite to the second surface. The second layer touches the third surface. The third layer is disposed in a region sandwiching the pole layer with the first layer. The first coupling portion couples the first layer to the third layer without touching the pole layer. The second coupling portion is located farther from the medium facing surface than the first coupling portion and couples the pole layer to the third layer.

摘要翻译： 屏蔽包括：第一层，第二层，第三层，第一接合部分和第二接合部分。 第一层具有：沿着记录介质的行进方向位于磁极层的端面的前面的面向介质的区域的区域中的第一表面; 与极层相对的第二表面; 和与第二表面相对的第三表面。 第二层接触第三面。 第三层设置在与第一层夹着极层的区域中。 第一耦合部分将第一层耦合到第三层而不接触极层。 第二耦合部分位于比第一耦合部分更远离介质面对表面，并将极层耦合到第三层。

公开(公告)号：US08467147B2

公开(公告)日：2013-06-18

申请号：US11546961

申请日：2006-10-13

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/112 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3136 ,  G11B5/315 ,  G11B5/3163 ,  G11B5/3169

摘要： A magnetic head comprises a pole layer, a first coil, a second coil, and a shield. The shield incorporates: a first portion located backward of the pole layer along the direction of travel of a recording medium; a second portion located forward of the pole layer along the direction of travel of the recording medium; and two coupling portions. The first portion has an end face located in a medium facing surface. The two coupling portions couple the first and second portions to each other without touching the pole layer. Part of the first coil passes through a space surrounded by the pole layer and the first portion. Part of the second coil passes through a space surrounded by the pole layer and the second portion.

摘要翻译： 磁头包括极层，第一线圈，第二线圈和屏蔽。 屏蔽包括：沿着记录介质的行进方向位于极层的后方的第一部分; 位于所述极层之前沿着所述记录介质的行进方向的第二部分; 和两个联接部分。 第一部分具有位于面向介质的表面中的端面。 两个耦合部分将第一和第二部分彼此耦合，而不接触极层。 第一线圈的一部分通过由极层和第一部分包围的空间。 第二线圈的一部分通过由极层和第二部分包围的空间。

公开(公告)号：US20120229932A1

公开(公告)日：2012-09-13

申请号：US13476543

申请日：2012-05-21

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/17

CPC分类号： G11B5/1278

摘要： A magnetic layer for writing incorporates: a pole layer having an end face located in a medium facing surface and a lower yoke layer. A first magnetic layer for flux concentration is connected to the lower yoke layer at a location away from the medium facing surface, and passes a magnetic flux corresponding to a magnetic field generated by a first coil. A second magnetic layer for flux concentration is connected to the pole layer at a location away from the medium facing surface, and passes a magnetic flux corresponding to a magnetic field generated by a second coil. A nonmagnetic layer is disposed between the pole layer and the lower yoke layer. The lower yoke layer is connected to the pole layer at a location closer to the medium facing surface than the nonmagnetic layer.

摘要翻译： 用于写入的磁性层包括：具有位于介质相对表面中的端面的极层和下轭铁层。 用于磁通集中的第一磁性层在远离介质相对表面的位置处连接到下轭铁层，并且通过对应于由第一线圈产生的磁场的磁通量。 用于磁通集中的第二磁性层在离开介质相对表面的位置处连接到极层，并且通过对应于由第二线圈产生的磁场的磁通量。 非磁性层设置在极层和下轭铁层之间。 下磁轭层在比非磁性层更靠近介质相对表面的位置处连接到极层。

公开(公告)号：US08213116B2

公开(公告)日：2012-07-03

申请号：US13051560

申请日：2011-03-18

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/147

CPC分类号： G11B5/1278

摘要： A magnetic layer for writing incorporates: a pole layer having an end face located in a medium facing surface; and an upper yoke layer. A first magnetic layer for flux concentration is connected to the pole layer at a location away from the medium facing surface, and passes a magnetic flux corresponding to a magnetic field generated by a first coil. A second magnetic layer for flux concentration is connected to the upper yoke layer at a location away from the medium facing surface, and passes a magnetic flux corresponding to a magnetic field generated by a second coil. A nonmagnetic layer is disposed between the pole layer and the upper yoke layer. The upper yoke layer is connected to the pole layer at a location closer to the medium facing surface than the nonmagnetic layer.

摘要翻译： 用于写入的磁性层包括：具有位于介质面向表面中的端面的极层; 和上轭铁层。 用于焊剂浓度的第一磁性层在远离介质相对表面的位置处连接到极层，并且通过对应于由第一线圈产生的磁场的磁通量。 用于焊剂浓度的第二磁性层在远离介质相对表面的位置处连接到上磁轭层，并且通过对应于由第二线圈产生的磁场的磁通量。 非磁性层设置在极层和上轭铁层之间。 上磁轭层在比非磁性层更靠近介质相对表面的位置处连接到极层。

公开(公告)号：US20080088972A1

公开(公告)日：2008-04-17

申请号：US11546961

申请日：2006-10-13

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/112 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3136 ,  G11B5/315 ,  G11B5/3163 ,  G11B5/3169

摘要： A magnetic head comprises a pole layer, a first coil, a second coil, and a shield. The shield incorporates: a first portion located backward of the pole layer along the direction of travel of a recording medium; a second portion located forward of the pole layer along the direction of travel of the recording medium; and two coupling portions. The first portion has an end face located in a medium facing surface. The two coupling portions couple the first and second portions to each other without touching the pole layer. Part of the first coil passes through a space surrounded by the pole layer and the first portion. Part of the second coil passes through a space surrounded by the pole layer and the second portion.

摘要翻译： 磁头包括极层，第一线圈，第二线圈和屏蔽。 屏蔽包括：沿着记录介质的行进方向位于极层的后方的第一部分; 位于所述极层之前沿着所述记录介质的行进方向的第二部分; 和两个联接部分。 第一部分具有位于面向介质的表面中的端面。 两个耦合部分将第一和第二部分彼此耦合，而不接触极层。 第一线圈的一部分通过由极层和第一部分包围的空间。 第二线圈的一部分通过由极层和第二部分包围的空间。

公开(公告)号：US07633714B2

公开(公告)日：2009-12-15

申请号：US11492945

申请日：2006-07-26

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/127

CPC分类号： G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3116 ,  G11B5/315

摘要： A shield incorporates: a first layer, a second layer, a third layer, a first coupling portion, and a second coupling portion. The first layer has: a first surface located in a region of a medium facing surface forward of an end face of a pole layer along the direction of travel of a recording medium; a second surface opposed to the pole layer; and a third surface opposite to the second surface. The second layer touches the third surface. The third layer is disposed in a region sandwiching the pole layer with the first layer. The first coupling portion couples the first layer to the third layer without touching the pole layer. The second coupling portion is located farther from the medium facing surface than the first coupling portion and couples the pole layer to the third layer.

摘要翻译： 屏蔽包括：第一层，第二层，第三层，第一接合部分和第二接合部分。 第一层具有：沿着记录介质的行进方向位于磁极层的端面的前面的面向介质的区域的区域中的第一表面; 与极层相对的第二表面; 和与第二表面相对的第三表面。 第二层接触第三面。 第三层设置在与第一层夹着极层的区域中。 第一耦合部分将第一层耦合到第三层而不接触极层。 第二耦合部分位于比第一耦合部分更远离介质面对表面，并将极层耦合到第三层。