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21. 发明授权

US07518824B2 Magnetic head for perpendicular magnetic recording that has a pole layer having a shape for easy forming, reducing track width and improved writing characteristics 有权
标题翻译：用于垂直磁记录的磁头，其具有具有易于成形的形状的极层，减少轨道宽度和改善的书写特性
公开(公告)号：US07518824B2
公开(公告)日：2009-04-14
申请号：US11213863
申请日：2005-08-30
申请人： Yoshitaka Sasaki , Hiroyuki Itoh , Hironori Araki , Takehiro Horinaka , Shigeki Tanemura
发明人： Yoshitaka Sasaki , Hiroyuki Itoh , Hironori Araki , Takehiro Horinaka , Shigeki Tanemura
IPC分类号： G11B5/147 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , Y10T29/49032 , Y10T29/49034 , Y10T29/49041 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A magnetic head includes an encasing layer made of a nonmagnetic material and having a groove that opens in the top surface; a nonmagnetic metal layer made of a nonmagnetic metal material, disposed on the top surface of the encasing layer, and having a penetrating opening that is contiguous to the groove; and a pole layer made of a magnetic metal material and encased in the groove of the encasing layer and in the opening of the nonmagnetic metal layer. The pole layer has an end face located in a medium facing surface, the end face having a first portion and a second portion that is located farther from a substrate than the first portion and connected to the first portion. The first portion has a width that decreases as the distance from the substrate decreases. The second portion has a uniform width that defines the track width. In the medium facing surface, the nonmagnetic metal layer exists on both sides of the second portion, the sides being opposed to each other in the direction of track width.
摘要翻译：磁头包括由非磁性材料制成并具有在顶表面上开口的凹槽的封装层; 由非磁性金属材料制成的非磁性金属层，设置在所述封装层的顶表面上，并且具有与所述凹槽相邻的穿透开口; 以及由磁性金属材料制成并封装在封装层的凹槽中和非磁性金属层的开口中的极层。极层具有位于介质面对表面中的端面，端面具有第一部分和第二部分，其位于比第一部分更远离基板并且连接到第一部分。第一部分具有随着距离衬底的距离减小而减小的宽度。第二部分具有定义轨道宽度的均匀宽度。在面向介质的表面中，非磁性金属层存在于第二部分的两侧，侧面在轨道宽度方向上彼此相对。

22. 发明授权

US07633714B2 Magnetic head for perpendicular magnetic recording 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：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。

23. 发明申请

US20120229932A1 MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING 有权
标题翻译：用于磁性记录的磁头
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。

24. 发明授权

US08213116B2 Magnetic head for perpendicular magnetic recording 有权
标题翻译：用于垂直磁记录的磁头
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。

25. 发明申请

US20080088972A1 Magnetic head for perpendicular magnetic recording 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：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。

26. 发明申请

US20080024911A1 Magnetic head for perpendicular magnetic recording 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：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。

27. 发明授权

US08427782B2 Magnetic head for perpendicular magnetic recording 有权
标题翻译：磁头用于垂直磁记录
公开(公告)号：US08427782B2
公开(公告)日：2013-04-23
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： G11B5/147
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 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。

28. 发明授权

US07940495B2 Magnetic head for perpendicular magnetic recording 失效
标题翻译：用于垂直磁记录的磁头
公开(公告)号：US07940495B2
公开(公告)日：2011-05-10
申请号：US11546902
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： G11B5/31
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 allows a magnetic flux corresponding to a magnetic field generated by a first coil to pass. A second magnetic layer for flux concentration is connected to the upper yoke layer at a location away from the medium facing surface, and allows a magnetic flux corresponding to a magnetic field generated by a second coil to pass. When seen in the direction orthogonal to the interface between the second magnetic layer and the upper yoke layer, this interface is disposed at a location that does not coincide with the interface between the first magnetic layer and the pole 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，并且允许对应于由第一线圈产生的磁场的磁通通过。用于磁通集中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，并且允许对应于由第二线圈产生的磁场的磁通通过。当在与第二磁性层和上磁轭层之间的界面正交的方向上观察时，该界面设置在与第一磁性层和极层之间的界面不一致的位置。

29. 发明申请

US20080088971A1 Magnetic head for perpendicular magnetic recording 失效
标题翻译：用于垂直磁记录的磁头
公开(公告)号：US20080088971A1
公开(公告)日：2008-04-17
申请号：US11546902
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
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 allows a magnetic flux corresponding to a magnetic field generated by a first coil to pass. A second magnetic layer for flux concentration is connected to the upper yoke layer at a location away from the medium facing surface, and allows a magnetic flux corresponding to a magnetic field generated by a second coil to pass. When seen in the direction orthogonal to the interface between the second magnetic layer and the upper yoke layer, this interface is disposed at a location that does not coincide with the interface between the first magnetic layer and the pole 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，并且允许对应于由第一线圈产生的磁场的磁通通过。用于磁通集中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，并且允许对应于由第二线圈产生的磁场的磁通通过。当在与第二磁性层和上磁轭层之间的界面正交的方向上观察时，该界面设置在与第一磁性层和极层之间的界面不一致的位置。

30. 发明授权

US08467147B2 Magnetic head for perpendicular magnetic recording 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：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。

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