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1.发明授权Thin-film magnetic head, head gimbal assembly with thin-film magnetic head, head arm assembly with head gimbal assembly, magnetic disk drive apparatus with head gimbal assembly and manufacturing method of thin-film magnetic head 失效薄膜磁头，具有薄膜磁头的头万向架组件，带头万向架组件的头臂组件，头万向架组件的磁盘驱动装置和薄膜磁头的制造方法公开(公告)号：US07372667B2
公开(公告)日：2008-05-13
申请号：US11139697
申请日：2005-05-31
IPC分类号： G11B5/31
CPC分类号： G11B5/187 , G11B5/3116 , G11B5/3163
摘要： A thin-film magnetic head comprising an inductive element including at least: a lower magnetic pole; a write gap layer; and an upper magnetic pole opposed to the lower magnetic pole through the write gap layer, a width WP2 in a track-width direction at a facing-to-magnetic-medium top end of the upper magnetic pole being larger than a width WP1 in the track-width direction at a facing-to-magnetic-medium top end of the lower magnetic pole, and a distance FPDP2 between the top end of the upper magnetic pole and a flare point of the upper magnetic pole being smaller than a distance FPDP1 between the top end of the lower magnetic pole and a flare point of the lower magnetic pole, is provided.
摘要翻译： 一种薄膜磁头，包括至少包括下磁极的感应元件; 写间隙层; 以及通过写入间隙层与下部磁极相对的上部磁极，在上部磁极的面对磁性介质顶端的轨道宽度方向上的宽度W P2 大于在下磁极的面对磁介质顶端处的轨道宽度方向上的宽度W P1 P1和之间的距离FPD
P2 被提供。 -
2.发明授权公开(公告)号：US07321480B2
公开(公告)日：2008-01-22
申请号：US10917476
申请日：2004-08-13
IPC分类号： G11B5/39
CPC分类号： G11B5/3163 , G11B5/3116 , Y10T29/49021
摘要： A thin-film magnetic head includes a lower magnetic layer, an upper magnetic layer, a recording gap layer, and a thin-film coil. The lower magnetic layer has a first magnetic pole tip layer, and a first yoke layer which is connected to the first magnetic pole tip layer. The first yoke layer has an extended part which is relatively thick and a reduced part which is relatively thin in the area in which the first yoke layer confronts the first magnetic pole tip layer, the extended part being positioned on the side of the air bearing surface. Further, the first magnetic pole tip layer is connected to the first yoke layer at the extended part, and is insulated from the first yoke layer at the reduced part.
摘要翻译： 薄膜磁头包括下磁性层，上磁性层，记录间隙层和薄膜线圈。 下磁性层具有第一磁极尖端层和与第一磁极尖端层连接的第一磁轭层。 第一磁轭层具有相对较厚的延伸部分和在第一磁轭层面对第一磁极末端层的区域中较薄的部分，延伸部分位于空气轴承表面侧 。 此外，第一磁极尖端层在延伸部分处连接到第一磁轭层，并且在缩小部分处与第一磁轭层绝缘。
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3.发明申请Thin-film magnetic head, head gimbal assembly with thin-film magnetic head, head arm assembly with head gimbal assembly, magnetic disk drive apparatus with head gimbal assembly and manufacturing method of thin-film magnetic head 失效薄膜磁头，具有薄膜磁头的头万向架组件，带头万向架组件的头臂组件，头万向架组件的磁盘驱动装置和薄膜磁头的制造方法公开(公告)号：US20050264934A1
公开(公告)日：2005-12-01
申请号：US11139697
申请日：2005-05-31
CPC分类号： G11B5/187 , G11B5/3116 , G11B5/3163
摘要： A thin-film magnetic head comprising an inductive element including at least: a lower magnetic pole; a write gap layer; and an upper magnetic pole opposed to the lower magnetic pole through the write gap layer, a width WP2 in a track-width direction at a facing-to-magnetic-medium top end of the upper magnetic pole being larger than a width WP1 in the track-width direction at a facing-to-magnetic-medium top end of the lower magnetic pole, and a distance FPDP2 between the top end of the upper magnetic pole and a flare point of the upper magnetic pole being smaller than a distance FPDP1 between the top end of the lower magnetic pole and a flare point of the lower magnetic pole, is provided.
摘要翻译： 一种薄膜磁头，包括至少包括下磁极的感应元件; 写间隙层; 以及通过写入间隙层与下部磁极相对的上部磁极，在上部磁极的面对磁性介质顶端的轨道宽度方向上的宽度W P2 大于在下磁极的面对磁介质顶端处的轨道宽度方向上的宽度W P1 P1和之间的距离FPD
P2 被提供。 -
公开(公告)号：US20050195526A1
公开(公告)日：2005-09-08
申请号：US11068967
申请日：2005-03-02
CPC分类号： G11B5/3116 , G11B5/1278
摘要： The present invention is intended for a thin film magnetic head which can provide reduction in the excess magnetostatic leakage field even if the flare point is set near to the ABS in order to generate a sufficient recording magnetic field and which can assure stable overwrite characteristics even if there are variations in upper pole portion patterns. The pole end portion 223 has a width W11 to define a recording track width. The pole rear portion 222 has one end which is magnetically connected with the pole end portion 223 at or in the vicinity of an edge portion of an insulating film 273 and defines a first flare point FP1, the other end which is connected with the upper yoke portion 221 and defines a second flare point FP2, and both side edges in the track width direction which are inclined so that the width in the track width direction gradually increases from the second flare point FP2 toward the first flare point FP1. The width W11 of the pole end portion 223 at the first flare point FP1 is smaller than the maximum width W21 of the pole rear portion 222.
摘要翻译： 本发明的目的在于一种薄膜磁头，即使将扩张点设置在靠近ABS的情况下也能够提供过剩的静磁泄漏场，以产生足够的记录磁场，即使在 上极部分图形有变化。 极端部223具有宽度W 11，以限定记录轨道宽度。 极后部222的一端在绝缘膜273的边缘部分处或附近与极端部223磁性连接，并且限定第一扩口点FP1，另一端与上端 轭部221，并且限定第二扩张点FP 2，以及轨道宽度方向上的两个侧边缘，其倾斜，使得轨道宽度方向上的宽度从第二扩张点FP 2朝向第一扩张点FP 1逐渐增加。 第一点火点FP 1的极端部223的宽度W 11比极后部222的最大宽度W 21小。
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5.发明申请公开(公告)号：US20050057851A1
公开(公告)日：2005-03-17
申请号：US10917476
申请日：2004-08-13
CPC分类号： G11B5/3163 , G11B5/3116 , Y10T29/49021
摘要： A thin-film magnetic head includes a lower magnetic layer, an upper magnetic layer, a recording gap layer, and a thin-film coil. The lower magnetic layer has a first magnetic pole tip layer, and a first yoke layer which is connected to the first magnetic pole tip layer. The first yoke layer has an extended part which is relatively thick and a reduced part which is relatively thin in the area in which the first yoke layer confronts the first magnetic pole tip layer, the extended part being positioned on the side of the air bearing surface. Further, the first magnetic pole tip layer is connected to the first yoke layer at the extended part, and is insulated from the first yoke layer at the reduced part.
摘要翻译： 薄膜磁头包括下磁性层，上磁性层，记录间隙层和薄膜线圈。 下磁性层具有第一磁极尖端层和与第一磁极尖端层连接的第一磁轭层。 第一磁轭层具有相对较厚的延伸部分和在第一磁轭层面对第一磁极末端层的区域中较薄的部分，延伸部分位于空气轴承表面侧 。 此外，第一磁极尖端层在延伸部分处连接到第一磁轭层，并且在缩小部分处与第一磁轭层绝缘。
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6.发明授权Thin film magnetic head having an upper pole portion with a width that increases towards an abs 失效薄膜磁头具有具有朝向绝缘体增加的宽度的上极部分公开(公告)号：US07239480B2
公开(公告)日：2007-07-03
申请号：US11068967
申请日：2005-03-02
IPC分类号： G11B5/187
CPC分类号： G11B5/3116 , G11B5/1278
摘要： A thin film magnetic head is provided to reduce excess magnetostatic leakage field in order to generate a sufficient recording magnetic field. The pole end portion has a width to define a recording track width. The pole rear portion has one end which is magnetically connected with the pole end portion at or in the vicinity of an edge portion of an insulating film and defines a first flare point, the other end which is connected with the upper yoke portion and defines a second flare point, and both side edges in the track width direction which are inclined so that the width in the track width direction gradually increases from the second flare point toward the first flare point. The width of the pole end portion at the first flare point is smaller than the maximum width of the pole rear portion.
摘要翻译： 提供薄膜磁头以减少多余的静磁泄漏场，以产生足够的记录磁场。 极端部具有限定记录轨道宽度的宽度。 极后部具有在绝缘膜的边缘部分处或附近与极端部磁性连接的端部，并且限定第一扩口点，另一端与上轭部连接并限定一个 第二耀斑点和轨道宽度方向上的两个侧边缘，其倾斜，使得轨道宽度方向上的宽度从第二扩张点朝向第一扩张点逐渐增加。 第一扩张点处的极端部的宽度小于极后部的最大宽度。
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7.发明申请公开(公告)号：US20060126224A1
公开(公告)日：2006-06-15
申请号：US11282651
申请日：2005-11-21
申请人： Takamitsu Sakamoto , Taro Oike , Katsuki Kurihara , Eric Leung
发明人： Takamitsu Sakamoto , Taro Oike , Katsuki Kurihara , Eric Leung
IPC分类号： G11B5/41
CPC分类号： G11B5/314 , G11B5/3136 , G11B5/4826 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head that the protrusion of the head end surface due to heat generated from the heating means becomes large enough to set the magnetic spacing dMS to the smaller value efficiently is provided. The head comprises: a substrate having an element-formed surface on which at least one concave portion is formed and an ABS; at least one magnetic head element formed above or on the element-formed surface; at least one thermal expansion layer embedded in the at least one concave portion; and at least one heating means positioned directly above the at least one thermal expansion layer.
摘要翻译： 提供了由于由加热装置产生的热量而使头端表面的突出部变得足够大以将磁性间隔d MS MS 有效地设定为较小值的薄膜磁头。 头部包括：具有形成有至少一个凹部的元件形成表面的基板和ABS; 至少一个磁头元件形成在元件形成表面之上或之上; 至少一个热膨胀层嵌入在所述至少一个凹部中; 以及至少一个位于至少一个热膨胀层上方的加热装置。
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8.发明申请公开(公告)号：US20060256481A1
公开(公告)日：2006-11-16
申请号：US11393775
申请日：2006-03-31
申请人： Takeo Kagami , Hiroshi Kiyono , Hiraku Hirabayashi , Eiichi Omata , Seiji Yari , Takamitsu Sakamoto
发明人： Takeo Kagami , Hiroshi Kiyono , Hiraku Hirabayashi , Eiichi Omata , Seiji Yari , Takamitsu Sakamoto
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/3133 , G11B5/3146 , G11B5/3967 , G11B5/6064 , G11B2005/0005
摘要： A composite thin-film magnetic head includes a substrate, an under layer formed on the substrate, an MR read head element formed on the under layer and provided with a lower shield layer, an upper shield layer and an MR layer in which a sense current flows in a direction perpendicular to a surface of the MR layer through the upper shield layer and the lower shield layer, an inter-shield insulation layer laminated on the MR read head element, an inductive write head element formed on the inter-shield insulation layer and provided with a first magnetic pole layer, a nonmagnetic layer, a second magnetic pole layer whose end portion is opposed to an end portion of the first magnetic pole layer through the nonmagnetic layer, and a write coil, and an additional shield layer formed between the upper shield layer and the first magnetic pole layer.
摘要翻译： 复合薄膜磁头包括基板，形成在基板上的下层，形成在下层上并设置有下屏蔽层，上屏蔽层和MR层的MR读头元件，其中感测电流 通过上屏蔽层和下屏蔽层在垂直于MR层的表面的方向上流动，层叠在MR读头元件上的屏蔽间绝缘层，形成在屏蔽间绝缘层上的感应写头元件 并且具有第一磁极层，非磁性层，其端部通过非磁性层与第一磁极层的端部相对的第二磁极层和写入线圈，以及形成在第一磁极层之间的附加屏蔽层 上屏蔽层和第一磁极层。
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9.发明授权公开(公告)号：US07724471B2
公开(公告)日：2010-05-25
申请号：US11282651
申请日：2005-11-21
IPC分类号： G11B21/21
CPC分类号： G11B5/314 , G11B5/3136 , G11B5/4826 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head that the protrusion of the head end surface due to heat generated from the heating means becomes large enough to set the magnetic spacing dMS to the smaller value efficiently is provided. The head comprises: a substrate having an element-formed surface on which at least one concave portion is formed and an ABS; at least one magnetic head element formed above or on the element-formed surface; at least one thermal expansion layer embedded in the at least one concave portion; and at least one heating means positioned directly above the at least one thermal expansion layer.
摘要翻译： 提供了由于由加热装置产生的热量而使头端表面的突起变得足够大以将磁距dMS设定为较小值的薄膜磁头。 头部包括：具有形成有至少一个凹部的元件形成表面的基板和ABS; 至少一个磁头元件形成在元件形成表面之上或之上; 至少一个热膨胀层嵌入在所述至少一个凹部中; 以及至少一个位于至少一个热膨胀层上方的加热装置。
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10.发明授权公开(公告)号：US07675716B2
公开(公告)日：2010-03-09
申请号：US11393775
申请日：2006-03-31
申请人： Takeo Kagami , Hiroshi Kiyono , Hiraku Hirabayashi , Eiichi Omata , Seiji Yari , Takamitsu Sakamoto
发明人： Takeo Kagami , Hiroshi Kiyono , Hiraku Hirabayashi , Eiichi Omata , Seiji Yari , Takamitsu Sakamoto
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/3133 , G11B5/3146 , G11B5/3967 , G11B5/6064 , G11B2005/0005
摘要： A composite thin-film magnetic head includes a substrate, an under layer formed on the substrate, an MR read head element formed on the under layer and provided with a lower shield layer, an upper shield layer and an MR layer in which a sense current flows in a direction perpendicular to a surface of the MR layer through the upper shield layer and the lower shield layer, an inter-shield insulation layer laminated on the MR read head element, an inductive write head element formed on the inter-shield insulation layer and provided with a first magnetic pole layer, a nonmagnetic layer, a second magnetic pole layer whose end portion is opposed to an end portion of the first magnetic pole layer through the nonmagnetic layer, and a write coil, and an additional shield layer formed between the upper shield layer and the first magnetic pole layer.
摘要翻译： 复合薄膜磁头包括基板，形成在基板上的下层，形成在下层上并设置有下屏蔽层，上屏蔽层和MR层的MR读头元件，其中感测电流 通过上屏蔽层和下屏蔽层在垂直于MR层的表面的方向上流动，层叠在MR读头元件上的屏蔽间绝缘层，形成在屏蔽间绝缘层上的感应写头元件 并且具有第一磁极层，非磁性层，其端部通过非磁性层与第一磁极层的端部相对的第二磁极层和写入线圈，以及形成在第一磁极层之间的附加屏蔽层 上屏蔽层和第一磁极层。
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