公开(公告)号：US07193816B2

公开(公告)日：2007-03-20

申请号：US10871040

申请日：2004-06-21

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Po-Kang Wang ,  Lijie Guan

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Po-Kang Wang ,  Lijie Guan

IPC分类号： G11B5/147

CPC分类号： G11B5/3136 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3106 ,  G11B5/3143 ,  G11B5/3163

摘要： A magnetic head comprises a pole layer, a gap layer, a shield layer, a nonmagnetic layer, and a coil. The shield layer incorporates: a first layer disposed on the gap layer; a second layer disposed on the first layer; a two-layered coupling layer disposed on a region of the pole layer where an opening of the gap layer is formed; and a third layer disposed to couple the second layer to the coupling layer. The first layer defines throat height TH. The nonmagnetic layer is disposed on a side of the first layer. The coil is disposed on the nonmagnetic layer on a side of the second layer.

摘要翻译： 磁头包括极层，间隙层，屏蔽层，非磁性层和线圈。 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; 设置在形成间隙层的开口的极层的区域上的双层结合层; 以及设置成将所述第二层耦合到所述耦合层的第三层。 第一层定义喉咙高度TH。 非磁性层设置在第一层的一侧。 线圈设置在第二层一侧的非磁性层上。

公开(公告)号：US20050280937A1

公开(公告)日：2005-12-22

申请号：US10871040

申请日：2004-06-21

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Po-Kang Wang ,  Lijie Guan

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Po-Kang Wang ,  Lijie Guan

IPC分类号： G11B5/127 ,  G11B5/147 ,  G11B5/187 ,  G11B5/31

CPC分类号： G11B5/3136 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3106 ,  G11B5/3143 ,  G11B5/3163

摘要： A magnetic head comprises a pole layer, a gap layer, a shield layer, a nonmagnetic layer, and a coil. The shield layer incorporates: a first layer disposed on the gap layer; a second layer disposed on the first layer; a two layered coupling layer disposed on a region of the pole layer where an opening of the gap layer is formed; and a third layer disposed to couple the second layer to the coupling layer. The first layer defines throat height TH. The nonmagnetic layer is disposed on a side of the first layer. The coil is disposed on the nonmagnetic layer on a side of the second layer.

摘要翻译： 磁头包括极层，间隙层，屏蔽层，非磁性层和线圈。 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; 设置在形成间隙层的开口的极层的区域上的双层结合层; 以及设置成将所述第二层耦合到所述耦合层的第三层。 第一层定义喉咙高度TH。 非磁性层设置在第一层的一侧。 线圈设置在第二层一侧的非磁性层上。

公开(公告)号：US07609479B2

公开(公告)日：2009-10-27

申请号：US11372259

申请日：2006-03-10

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Joseph Smyth ,  Lijie Guan ,  Yaw-Shing Tang

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Joseph Smyth ,  Lijie Guan ,  Yaw-Shing Tang

IPC分类号： G11B5/127

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

摘要： A pole layer has an end face located in a medium facing surface, allows a magnetic flux corresponding to a magnetic field generated by a coil to pass therethrough, and generates a write magnetic field for writing data on a recording medium by using a perpendicular magnetic recording system. A shield incorporates: a first layer having an end face located in a region of the medium facing surface forward of the end face of the pole layer along the direction of travel of the recording medium; a second layer disposed in a region sandwiching the pole layer with the first layer; a first coupling portion coupling the first layer to the second layer without touching the pole layer; and a second coupling portion coupling the pole layer to the second layer and located farther from the medium facing surface than the first coupling portion.

摘要翻译： 极层具有位于介质相对表面中的端面，允许对应于由线圈产生的磁场的磁通量通过其中，并且通过使用垂直磁记录产生用于将数据写入记录介质的写入磁场 系统。 屏蔽包括：第一层，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面的介质面向表面的区域中的端面; 第二层，设置在将所述极层与所述第一层夹在中间的区域中; 第一耦合部分，其将所述第一层耦合到所述第二层，而不接触所述极层; 以及第二耦合部分，其将所述极层耦合到所述第二层并且位于比所述第一耦合部更远离所述介质面对表面。

公开(公告)号：US20070211377A1

公开(公告)日：2007-09-13

申请号：US11372259

申请日：2006-03-10

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Joseph Smyth ,  Lijie Guan ,  Yaw-Shing Tang

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Joseph Smyth ,  Lijie Guan ,  Yaw-Shing Tang

IPC分类号： G11B5/147

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

摘要： A pole layer has an end face located in a medium facing surface, allows a magnetic flux corresponding to a magnetic field generated by a coil to pass therethrough, and generates a write magnetic field for writing data on a recording medium by means of a perpendicular magnetic recording system. A shield incorporates: a first layer having an end face located in a region of the medium facing surface forward of the end face of the pole layer along the direction of travel of the recording medium; a second layer disposed in a region sandwiching the pole layer with the first layer; a first coupling portion coupling the first layer to the second layer without touching the pole layer; and a second coupling portion coupling the pole layer to the second layer and located farther from the medium facing surface than the first coupling portion.

摘要翻译： 极层具有位于介质相对表面中的端面，允许对应于由线圈产生的磁场的磁通量通过，并产生用于通过垂直磁场将数据写入记录介质的写入磁场 录音系统 屏蔽包括：第一层，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面的介质面向表面的区域中的端面; 第二层，设置在将所述极层与所述第一层夹在中间的区域中; 将第一层耦合到第二层而不接触极层的第一耦合部分; 以及第二耦合部分，其将所述极层耦合到所述第二层并且位于比所述第一耦合部更远离所述介质面对表面。

公开(公告)号：US08625234B2

公开(公告)日：2014-01-07

申请号：US12150553

申请日：2008-04-29

申请人： Lijie Guan ,  Po-Kang Wang ,  Moris Dovek ,  Joe Smyth ,  Kenichi Takano ,  Yoshitaka Sasaki

发明人： Lijie Guan ,  Po-Kang Wang ,  Moris Dovek ,  Joe Smyth ,  Kenichi Takano ,  Yoshitaka Sasaki

IPC分类号： G11B5/31

CPC分类号： G11B5/1278 ,  G11B5/232 ,  G11B5/3116 ,  G11B5/3146

摘要： A structure and a process for a perpendicular write pole that provides increased magnetic flux at the ABS is disclosed. This is accomplished by increasing the amount of write flux that originates above the write gap, without changing the pole taper at the ABS. Three embodiment of the invention are discussed.

摘要翻译： 公开了一种用于在ABS处提供增加的磁通量的垂直写入极的结构和工艺。 这是通过增加起始于写入间隙的写入通量的量来实现的，而不改变ABS处的极锥度。 讨论本发明的三个实施例。

公开(公告)号：US20090268344A1

公开(公告)日：2009-10-29

申请号：US12150553

申请日：2008-04-29

申请人： Lijie Guan ,  Po-Kang Wang ,  Moris Dovek ,  Joe Smyth ,  Kenichi Takano ,  Yoshitaka Sasaki

发明人： Lijie Guan ,  Po-Kang Wang ,  Moris Dovek ,  Joe Smyth ,  Kenichi Takano ,  Yoshitaka Sasaki

IPC分类号： G11B5/23

CPC分类号： G11B5/1278 ,  G11B5/232 ,  G11B5/3116 ,  G11B5/3146

摘要： A structure and a process for a perpendicular write pole that provides increased magnetic flux at the ABS is disclosed. This is accomplished by increasing the amount of write flux that originates above the write gap, without changing the pole taper at the ABS. Three embodiment of the invention are discussed.

摘要翻译： 公开了一种用于在ABS处提供增加的磁通量的垂直写入极的结构和工艺。 这是通过增加起始于写入间隙的写入通量的量来实现的，而不改变ABS处的极锥度。 讨论本发明的三个实施例。

公开(公告)号：US20090017198A1

公开(公告)日：2009-01-15

申请号：US12232065

申请日：2008-09-10

申请人： Yoshitaka Sasaki ,  Lijie Guan ,  Hiroyuki Ito ,  Dong Hong Li

发明人： Yoshitaka Sasaki ,  Lijie Guan ,  Hiroyuki Ito ,  Dong Hong Li

IPC分类号： B05D5/12 ,  B05D3/00

CPC分类号： G11B5/11 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3103 ,  G11B5/3143 ,  G11B5/3163

摘要： A thin-film magnetic head has a laminated construction comprising a main pole layer having a magnetic pole tip on a side of the medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole tip forming a recording gap layer, on the side of the medium-opposing surface, and a thin-film coil wound around at least a portion of the write shield layer. The thin-film magnetic head has an upper yoke pole layer having a larger size than the portion of the main pole layer which is more distant from the medium-opposing surface than the recording gap layer, wherein the upper yoke pole layer is joined to the side of the main pole layer which is near the thin-film coil.

摘要翻译： 薄膜磁头具有叠层结构，该叠层结构包括：主磁极层，其在介质相对表面的与记录介质相对的一侧上具有磁极末端，与形成记录间隙层的磁极末端相对的写入屏蔽层， 介质相对表面的侧面和缠绕在写入屏蔽层的至少一部分上的薄膜线圈。 该薄膜磁头具有比记录间隙层更远离介质相对表面的主极层的部分的尺寸大的上磁轭磁极层，其中，上轭磁极层与 靠近薄膜线圈的主极层的侧面。

公开(公告)号：US20050280939A1

公开(公告)日：2005-12-22

申请号：US10912245

申请日：2004-08-06

申请人： Yoshitaka Sasaki ,  Lijie Guan ,  Hiroyuki Ito ,  Dong Hong Li

发明人： Yoshitaka Sasaki ,  Lijie Guan ,  Hiroyuki Ito ,  Dong Hong Li

IPC分类号： G11B5/127 ,  G11B5/147 ,  G11B5/187 ,  G11B5/31

CPC分类号： G11B5/11 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3103 ,  G11B5/3143 ,  G11B5/3163

摘要： A thin-film magnetic head has a laminated construction comprising a main pole layer having a magnetic pole tip on a side of the medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole tip forming a recording gap layer, on the side of the medium-opposing surface, and a thin-film coil wound around at least a portion of the write shield layer. The thin-film magnetic head has an upper yoke pole layer having a larger size than the portion of the main pole layer which is more distant from the medium-opposing surface than the recording gap layer, wherein the upper yoke pole layer is joined to the side of the main pole layer which is near the thin-film coil.

摘要翻译： 薄膜磁头具有叠层结构，该叠层结构包括：主磁极层，其在介质相对表面的与记录介质相对的一侧上具有磁极末端，与形成记录间隙层的磁极末端相对的写入屏蔽层， 介质相对表面的侧面和缠绕在写入屏蔽层的至少一部分上的薄膜线圈。 该薄膜磁头具有比记录间隙层更远离介质相对表面的主极层的部分的尺寸大的上磁轭磁极层，其中，上轭磁极层与 靠近薄膜线圈的主极层的侧面。

公开(公告)号：US07718218B2

公开(公告)日：2010-05-18

申请号：US12232065

申请日：2008-09-10

申请人： Yoshitaka Sasaki ,  Lijie Guan ,  Hiroyuki Ito ,  Dong Hong Li

发明人： Yoshitaka Sasaki ,  Lijie Guan ,  Hiroyuki Ito ,  Dong Hong Li

IPC分类号： G11B5/127 ,  G11B5/17 ,  G11B5/187

CPC分类号： G11B5/11 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3103 ,  G11B5/3143 ,  G11B5/3163

摘要： A thin-film magnetic head has a laminated construction comprising a main pole layer having a magnetic pole tip on a side of the medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole tip forming a recording gap layer, on the side of the medium-opposing surface, and a thin-film coil wound around at least a portion of the write shield layer. The thin-film magnetic head has an upper yoke pole layer having a larger size than the portion of the main pole layer which is more distant from the medium-opposing surface than the recording gap layer, wherein the upper yoke pole layer is joined to the side of the main pole layer which is near the thin-film coil.

摘要翻译： 薄膜磁头具有叠层结构，该叠层结构包括：主磁极层，其在介质相对表面的与记录介质相对的一侧上具有磁极末端，与形成记录间隙层的磁极末端相对的写入屏蔽层， 介质相对表面的侧面和缠绕在写入屏蔽层的至少一部分上的薄膜线圈。 该薄膜磁头具有比记录间隙层更远离介质相对表面的主极层的部分的尺寸大的上磁轭磁极层，其中，上轭磁极层与 靠近薄膜线圈的主极层的侧面。

公开(公告)号：US07440229B2

公开(公告)日：2008-10-21

申请号：US10912245

申请日：2004-08-06

申请人： Yoshitaka Sasaki ,  Lijie Guan ,  Hiroyuki Ito ,  Dong Hong Li

发明人： Yoshitaka Sasaki ,  Lijie Guan ,  Hiroyuki Ito ,  Dong Hong Li

IPC分类号： G11B5/127

CPC分类号： G11B5/11 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3103 ,  G11B5/3143 ,  G11B5/3163

摘要： A thin-film magnetic head has a laminated construction comprising a main pole layer having a magnetic pole tip on a side of the medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole tip forming a recording gap layer, on the side of the medium-opposing surface, and a thin-film coil wound around at least a portion of the write shield layer. The thin-film magnetic head has an upper yoke pole layer having a larger size than the portion of the main pole layer which is more distant from the medium-opposing surface than the recording gap layer, wherein the upper yoke pole layer is joined to the side of the main pole layer which is near the thin-film coil.

摘要翻译： 薄膜磁头具有叠层结构，该叠层结构包括：主磁极层，其在介质相对表面的与记录介质相对的一侧上具有磁极末端，与形成记录间隙层的磁极末端相对的写入屏蔽层， 介质相对表面的侧面和缠绕在写入屏蔽层的至少一部分上的薄膜线圈。 该薄膜磁头具有比记录间隙层更远离介质相对表面的主极层的部分的尺寸大的上磁轭磁极层，其中，上轭磁极层与 靠近薄膜线圈的主极层的侧面。