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1.发明授权公开(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
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。
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2.发明申请公开(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。
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3.发明申请公开(公告)号：US20070121248A1
公开(公告)日：2007-05-31
申请号：US11289526
申请日：2005-11-30
IPC分类号： G11B5/147
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 disposed on the gap layer; a second layer disposed on the first layer; and a third layer disposed on the second layer. The first layer has an end face located in a medium facing surface. An end face of each of the second and third layers closer to the medium facing surface is located at a distance from the medium facing surface. A first nonmagnetic layer is disposed around the first layer. A second nonmagnetic layer is disposed between the medium facing surface and the end face of the second layer closer to 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：设置在间隙层上的第一层; 设置在所述第一层上的第二层; 以及设置在所述第二层上的第三层。 第一层具有位于面向介质的表面中的端面。 靠近介质相对表面的第二层和第三层中的每一层的端面位于与介质相对表面一定距离处。 第一非磁性层设置在第一层周围。 第二非磁性层设置在介质面向表面和第二层的靠近介质面向表面的端面之间。
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4.发明授权Magnetic head for perpendicular magnetic recording having a specially configured shield layer 有权用于垂直磁记录的磁头，具有专门设计的屏蔽层公开(公告)号：US07656613B2
公开(公告)日：2010-02-02
申请号：US12320932
申请日：2009-02-09
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 disposed on the gap layer; a second layer disposed on the first layer; and a third layer disposed on the second layer. The first layer has an end face located in a medium facing surface. An end face of each of the second and third layers closer to the medium facing surface is located at a distance from the medium facing surface. A first nonmagnetic layer is disposed around the first layer. A second nonmagnetic layer is disposed between the medium facing surface and the end face of the second layer closer to 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：设置在间隙层上的第一层; 设置在所述第一层上的第二层; 以及设置在所述第二层上的第三层。 第一层具有位于面向介质的表面中的端面。 靠近介质相对表面的第二层和第三层中的每一层的端面位于与介质相对表面一定距离处。 第一非磁性层设置在第一层周围。 第二非磁性层设置在介质面向表面和第二层的靠近介质面向表面的端面之间。
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公开(公告)号：US20090147400A1
公开(公告)日：2009-06-11
申请号：US12320932
申请日：2009-02-09
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 disposed on the gap layer; a second layer disposed on the first layer; and a third layer disposed on the second layer. The first layer has an end face located in a medium facing surface. An end face of each of the second and third layers closer to the medium facing surface is located at a distance from the medium facing surface. A first nonmagnetic layer is disposed around the first layer. A second nonmagnetic layer is disposed between the medium facing surface and the end face of the second layer closer to 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：设置在间隙层上的第一层; 设置在所述第一层上的第二层; 以及设置在所述第二层上的第三层。 第一层具有位于面向介质的表面中的端面。 靠近介质相对表面的第二层和第三层中的每一层的端面位于与介质相对表面一定距离处。 第一非磁性层设置在第一层周围。 第二非磁性层设置在介质面向表面和第二层的靠近介质面向表面的端面之间。
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6.发明授权公开(公告)号：US07508629B2
公开(公告)日：2009-03-24
申请号：US11289526
申请日：2005-11-30
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 disposed on the gap layer; a second layer disposed on the first layer; and a third layer disposed on the second layer. The first layer has an end face located in a medium facing surface. An end face of each of the second and third layers closer to the medium facing surface is located at a distance from the medium facing surface. A first nonmagnetic layer is disposed around the first layer. A second nonmagnetic layer is disposed between the medium facing surface and the end face of the second layer closer to 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：设置在间隙层上的第一层; 设置在所述第一层上的第二层; 以及设置在所述第二层上的第三层。 第一层具有位于面向介质的表面中的端面。 靠近介质相对表面的第二层和第三层中的每一层的端面位于与介质相对表面一定距离处。 第一非磁性层设置在第一层周围。 第二非磁性层设置在介质面向表面和第二层的靠近介质面向表面的端面之间。
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公开(公告)号：US20120229932A1
公开(公告)日：2012-09-13
申请号：US13476543
申请日：2012-05-21
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。
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公开(公告)号：US08213116B2
公开(公告)日：2012-07-03
申请号：US13051560
申请日：2011-03-18
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。
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9.发明申请公开(公告)号：US20080088972A1
公开(公告)日：2008-04-17
申请号：US11546961
申请日：2006-10-13
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。
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10.发明授权公开(公告)号：US08467147B2
公开(公告)日：2013-06-18
申请号：US11546961
申请日：2006-10-13
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。
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