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公开(公告)号：US20110249360A1
公开(公告)日：2011-10-13
申请号：US12756958
申请日：2010-04-08
申请人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Keizo Kato
发明人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Keizo Kato
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3106 , G11B5/3143 , G11B5/315
摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole including a write magnetic pole layer for recording, the write magnetic pole layer comprising magnetic layers being antiferromagnetically coupled via a thin non-magnetic conductor layer between the magnetic layers, wherein the write magnetic pole layer for recording has a flare section which gradually widens in a height-wise direction of a throat height section. The main magnetic pole also includes a non-magnetic cap layer laminated above an uppermost layer of the write magnetic pole layer, the non-magnetic cap layer being textured to provide anisotropy, and a subsidiary magnetic pole layer for supplementing the recording laminated above the non-magnetic cap layer. The head also includes an auxiliary magnetic pole, a magnetic shield positioned via a non-magnetic layer on a trailing edge and both sides of the main magnetic pole in a track width direction, and a coil for generating a recording magnetic field.
摘要翻译： 根据一个实施例，垂直磁记录头包括主磁极，该主磁极包括用于记录的写磁极层，磁磁层包括通过磁性层之间的薄非磁性导体层反铁磁耦合的磁性层，其中， 用于记录的写磁极层具有在喉部高度部分的高度方向上逐渐变宽的喇叭部分。 主磁极还包括层叠在写磁极层的最上层上方的非磁性覆盖层，非磁性覆盖层被纹理化以提供各向异性，以及辅助磁极层，用于补充层叠在非磁性层上方的记录 磁盖层。 磁头还包括一个辅助磁极，一个位于磁道宽度方向的主磁极的后缘和两侧的非磁性层的磁屏蔽以及用于产生记录磁场的线圈。
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公开(公告)号：US08107193B2
公开(公告)日：2012-01-31
申请号：US12756958
申请日：2010-04-08
申请人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Keizo Kato
发明人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Keizo Kato
IPC分类号： G11B5/31
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3106 , G11B5/3143 , G11B5/315
摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole including a write magnetic pole layer for recording, the write magnetic pole layer comprising magnetic layers being antiferromagnetically coupled via a thin non-magnetic conductor layer between the magnetic layers, wherein the write magnetic pole layer for recording has a flare section which gradually widens in a height-wise direction of a throat height section. The main magnetic pole also includes a non-magnetic cap layer laminated above an uppermost layer of the write magnetic pole layer, the non-magnetic cap layer being textured to provide anisotropy, and a subsidiary magnetic pole layer for supplementing the recording laminated above the non-magnetic cap layer. The head also includes an auxiliary magnetic pole, a magnetic shield positioned via a non-magnetic layer on a trailing edge and both sides of the main magnetic pole in a track width direction, and a coil for generating a recording magnetic field.
摘要翻译： 根据一个实施例，垂直磁记录头包括主磁极，该主磁极包括用于记录的写磁极层，磁磁层包括通过磁性层之间的薄非磁性导体层反铁磁耦合的磁性层，其中， 用于记录的写磁极层具有在喉部高度部分的高度方向上逐渐变宽的喇叭部分。 主磁极还包括层叠在写磁极层的最上层上方的非磁性覆盖层，非磁性覆盖层被纹理化以提供各向异性，以及辅助磁极层，用于补充层叠在非磁性层上方的记录 磁盖层。 磁头还包括一个辅助磁极，一个位于磁道宽度方向的主磁极的后缘和两侧的非磁性层的磁屏蔽以及用于产生记录磁场的线圈。
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3.发明申请公开(公告)号：US20100091413A1
公开(公告)日：2010-04-15
申请号：US12559349
申请日：2009-09-14
CPC分类号： G11B5/1871 , G11B5/1278 , G11B5/232 , G11B5/3116 , G11B5/3163
摘要： According to one embodiment, a magnetic recording head includes a main pole having a throat height portion and a flare portion that is connected to the throat height portion, the flare portion gradually being expanded in width to an upper part in an element height direction. The head also includes a sub pole, magnetic shields disposed via a nonmagnetic layer on a trailing side of the main pole and on both sides in a track width direction of the main pole, and a coil for generating a recording magnetic field from the main pole. The nonmagnetic layer has an upper portion of which the thickness is increased stepwise or in a tapered manner in the element height direction with respect to an ABS side, and each portion of the magnetic shields adjacent to the main pole has a shape corresponding to a surface shape of the nonmagnetic layer.
摘要翻译： 根据一个实施例，磁记录头包括具有喉部高度部分的主极和连接到喉部高度部分的扩张部分，喇叭部分在宽度上逐渐扩大到元件高度方向上的上部。 磁头还包括一个副磁极，通过主磁极的后侧上的非磁性层和主磁极的磁道宽度方向上的两侧设置的磁屏蔽，以及用于从主极产生记录磁场的线圈 。 非磁性层的上部具有相对于ABS侧在元件高度方向上阶梯状或锥形化的增加部分，并且与主极相邻的磁屏蔽的各部分具有与表面对应的形状 非磁性层的形状。
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4.发明授权公开(公告)号：US08351153B2
公开(公告)日：2013-01-08
申请号：US12559349
申请日：2009-09-14
IPC分类号： G11B5/127
CPC分类号： G11B5/1871 , G11B5/1278 , G11B5/232 , G11B5/3116 , G11B5/3163
摘要： According to one embodiment, a magnetic recording head includes a main pole having a throat height portion and a flare portion that is connected to the throat height portion, the flare portion gradually being expanded in width to an upper part in an element height direction. The head also includes a sub pole, magnetic shields disposed via a nonmagnetic layer on a trailing side of the main pole and on both sides in a track width direction of the main pole, and a coil for generating a recording magnetic field from the main pole. The nonmagnetic layer has an upper portion of which the thickness is increased stepwise or in a tapered manner in the element height direction with respect to an ABS side, and each portion of the magnetic shields adjacent to the main pole has a shape corresponding to a surface shape of the nonmagnetic layer.
摘要翻译： 根据一个实施例，磁记录头包括具有喉部高度部分的主极和连接到喉部高度部分的扩张部分，喇叭部分在宽度上逐渐扩大到元件高度方向上的上部。 磁头还包括一个副磁极，通过主磁极的后侧上的非磁性层和主磁极的磁道宽度方向上的两侧设置的磁屏蔽，以及用于从主极产生记录磁场的线圈 。 非磁性层的上部具有相对于ABS侧在元件高度方向上阶梯状或锥形化的增加部分，并且与主极相邻的磁屏蔽的各部分具有与表面对应的形状 非磁性层的形状。
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5.发明授权公开(公告)号：US08335051B2
公开(公告)日：2012-12-18
申请号：US12636667
申请日：2009-12-11
申请人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Kimitoshi Etoh
发明人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Kimitoshi Etoh
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , Y10T29/49044
摘要： A recording head having a narrowed track has a high recording magnetic field strength and a high recording magnetic field gradient has certain problems which may be difficult to overcome. In one embodiment, a magnetic film, which overhangs from a track width, is provided on a trailing side of a. region retracted from an ABS of a main pole facing a recording medium. Thereby, a magnetic field strength on the trailing side is increased so that a difference in distribution of magnetic field strength defined by a geometrical bevel angle given to the main pole is increased. Consequently, writing performance of the main pole is improved while forming a large magnetic clearance angle with respect to an adjacent track and suppresses writing into an adjacent track when skew occurs. Other systems and methods are also disclosed regarding a head with a high recording magnetic field using an overhanging magnetic film.
摘要翻译： 具有窄轨道的记录头具有高记录磁场强度，并且高记录磁场梯度具有可能难以克服的某些问题。 在一个实施例中，从从磁道宽度伸出的磁性膜设置在从面向记录介质的主磁极的ABS缩回的区域的后侧。 由此，后侧的磁场强度增加，使得由给予主极的几何斜角确定的磁场强度分布的差异增大。 因此，当相对于相邻的轨道形成大的磁隙角度时，改善了主极的写入性能，并且在发生偏斜时抑制了向相邻轨道的写入。 关于使用悬垂磁性膜的具有高记录磁场的磁头也公开了其它系统和方法。
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6.发明申请公开(公告)号：US20100149697A1
公开(公告)日：2010-06-17
申请号：US12636667
申请日：2009-12-11
申请人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Kimitoshi Etoh
发明人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Kimitoshi Etoh
IPC分类号： G11B5/33
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , Y10T29/49044
摘要： A recording head having a narrowed track has a high recording magnetic field strength and a high recording magnetic field gradient has certain problems which may be difficult to overcome. In one embodiment, a magnetic film, which overhangs from a track width, is provided on a trailing side of a region retracted from an ABS of a main pole facing a recording medium. Thereby, a magnetic field strength on the trailing side is increased so that a difference in distribution of magnetic field strength defined by a geometrical Bevel angle given to the main pole is increased. Consequently, writing performance of the main pole is improved while forming a large magnetic clearance angle with respect to an adjacent track and suppresses writing into an adjacent track when skew occurs. Other systems and methods are also disclosed regarding a head with a high recording magnetic field using an overhanging magnetic film.
摘要翻译： 具有窄轨道的记录头具有高记录磁场强度，并且高记录磁场梯度具有可能难以克服的某些问题。 在一个实施例中，从从磁道宽度伸出的磁性膜设置在从面向记录介质的主磁极的ABS缩回的区域的后侧。 因此，后侧的磁场强度增加，从而增加了由给予主极的几何斜角确定的磁场强度分布的差异。 因此，当相对于相邻的轨道形成大的磁隙角度时，改善了主极的写入性能，并且在发生偏斜时抑制了向相邻轨道的写入。 关于使用悬垂磁性膜的具有高记录磁场的磁头也公开了其它系统和方法。
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公开(公告)号：US20090154021A1
公开(公告)日：2009-06-18
申请号：US12313621
申请日：2008-11-20
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/312 , G11B5/3146
摘要： Embodiments of the present invention provide a magnetic head that can stably supply a perpendicular magnetic field component while generating high recording field strength from a main pole. According to one embodiment, a magnetic body is deposited in a trailing side of a pole tip of a main pole via a nonmagnetic layer, so that a second flare section is magnetically coupled with each sidewall.
摘要翻译： 本发明的实施例提供一种可以稳定地提供垂直磁场分量同时从主极产生高记录磁场强度的磁头。 根据一个实施例，磁体经由非磁性层沉积在主极的极尖的后侧，使得第二扩张部与每个侧壁磁耦合。
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公开(公告)号：US07895732B2
公开(公告)日：2011-03-01
申请号：US11724952
申请日：2007-03-15
申请人： Tomohiro Okada , Isao Nunokawa , Kimitoshi Etoh , Kikuo Kusukawa
发明人： Tomohiro Okada , Isao Nunokawa , Kimitoshi Etoh , Kikuo Kusukawa
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315 , Y10T29/49021 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： An embodiment of the present invention relates to a method of manufacturing a perpendicular magnetic recording having a main pole, return pole and trailing side shield disposed on the trailing side and the cross track direction side of said main pole. A process is described where the main pole has an etching layer in the upper part. The top and sides of the main pole having the etching signal layer in the upper part are covered with a nonmagnetic gap layer while leaving open a region forming the side shield. The nonmagnetic gap layer is then etched until a signal from the etching signal layer is detected by an etching signal detector. The trailing side shield on the top and sides of the nonmagnetic gap layer are then formed after the etching is halted.
摘要翻译： 本发明的一个实施例涉及一种制造垂直磁记录的方法，该方法具有设置在所述主极的后侧和横向方向侧的主极，返回极和后侧屏蔽。 描述了主极在上部具有蚀刻层的工艺。 在上部具有蚀刻信号层的主极的顶部和侧面被非磁性间隙层覆盖，同时留下形成侧护罩的区域。 然后蚀刻非磁性间隙层，直到来自蚀刻信号层的信号被蚀刻信号检测器检测到。 然后在蚀刻停止之后形成非磁性间隙层的顶部和侧面上的后侧屏蔽。
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公开(公告)号：US20070217069A1
公开(公告)日：2007-09-20
申请号：US11724952
申请日：2007-03-15
申请人： Tomohiro Okada , Isao Nunokawa , Kimitoshi Etoh , Kikuo Kusukawa
发明人： Tomohiro Okada , Isao Nunokawa , Kimitoshi Etoh , Kikuo Kusukawa
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315 , Y10T29/49021 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： Embodiments in accordance with the present invention provide a trailing side shield around a main pole and control the gap length on its trailing side to high accuracy so as to increase a recording magnetic field gradient. An etching signal layer is provided on a main pole, and the gap length on the trailing side of the main pole is controlled to high accuracy by stopping ion milling when a signal from this layer is detected.
摘要翻译： 根据本发明的实施例提供围绕主极的后侧屏蔽，并且将其后侧的间隙长度控制到高精度，从而增加记录磁场梯度。 在主极上设置蚀刻信号层，当检测到来自该层的信号时，通过停止离子铣削，将主极的后侧的间隙长度控制为高精度。
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公开(公告)号：US07280321B2
公开(公告)日：2007-10-09
申请号：US11501844
申请日：2006-08-10
申请人： Katsuro Watanabe , Kikuo Kusukawa , Kenichi Meguro
发明人： Katsuro Watanabe , Kikuo Kusukawa , Kenichi Meguro
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/313 , G11B5/3903 , G11B5/3909 , G11B5/40 , G11B2005/3996
摘要： A magnetoresistive head of a type including a magnetoresistive film arranged between a lower shield layer and an upper shield layer, wherein the lower shield layer has a non-magnetic layer adjacent to it and the lower shield layer and the upper shield layer are formed such that their separation at at least part of a boundary between the lower shield layer and the upper shield layer is larger than their separation in a vicinity of the magnetoresistive film, and an insulating film is arranged between the lower shield layer and the upper shield layer, wherein the lower shield layer and the non-magnetic layer adjacent thereto are formed such that they differ in height and there exists a difference in level at their boundary.
摘要翻译： 一种包括布置在下屏蔽层和上屏蔽层之间的磁阻膜的类型的磁阻头，其中下屏蔽层具有与其相邻的非磁性层，并且形成下屏蔽层和上屏蔽层，使得 它们在下屏蔽层和上屏蔽层之间的边界的至少一部分上的分离大于其在磁阻膜附近的分离，并且绝缘膜布置在下屏蔽层和上屏蔽层之间，其中 形成下部屏蔽层和与其相邻的非磁性层，使得它们的高度不同，并且在其边界处存在水平差异。
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