公开(公告)号：US07372671B2

公开(公告)日：2008-05-13

申请号：US11021233

申请日：2004-12-21

申请人： Hisayuki Yazawa

发明人： Hisayuki Yazawa

IPC分类号： G11B5/55

CPC分类号： G11B5/4813 ,  G11B5/5526

摘要： A head beam is retained at a front portion of the pivoting arm so as to be rotatable, and is continuously urged by an urging member in the counterclockwise direction. The pivoting arm has a directing rod rotating around a supporting shaft. A slidable projection of the directing rod is slidably in contact with a beam rod, and a fixed supporting point is also slidably in contact with the directing rod. Accordingly, when the pivoting arm rotates, the operational reference line of the magnetic head is oriented along the tangential direction. Due to continuous urging force by the urging member, the direction of the magnetic head is continuously stabilized.

摘要翻译： 头梁被保持在枢转臂的前部以便可旋转，并且被推动构件沿逆时针方向连续地推动。 枢转臂具有围绕支撑轴旋转的导向杆。 引导杆的可滑动突起可滑动地与梁杆接触，并且固定支撑点也可滑动地与导杆接触。 因此，当枢转臂旋转时，磁头的操作基准线沿切线方向取向。 由于施力部件的连续作用力，磁头的方向连续稳定。

公开(公告)号：US07370406B2

公开(公告)日：2008-05-13

申请号：US10858999

申请日：2004-06-02

申请人： Hisayuki Yazawa

发明人： Hisayuki Yazawa

IPC分类号： G11B5/17

CPC分类号： G11B5/33 ,  Y10T29/49032 ,  Y10T29/4906 ,  Y10T29/49064 ,  Y10T29/49146 ,  Y10T29/49155 ,  Y10T29/49162

摘要： A thin film magnetic head is described, the magnetic head having an insulating layer and a protrusion which has an upper portion and a base portion, and the upper portion has an extended portion. The insulating layer is present under the extending part. A method of manufacturing the magnetic head includes forming a first insulating layer around the lower core layer; simultaneously forming a coil layer by plating the lower core layer with a coil insulating underlayer interposed between the lower coil layer and a coil lead layer connected to the coil layer on the first insulating layer; forming a coil insulating layer of an inorganic material on the coil layer and the coil lead layer; and, simultaneously forming a first plating underlayer for forming an upper core layer by plating, a second plating underlayer on the first coil lead layer exposed through the plating-forming opening, and a current-carrying lead layer.

摘要翻译： 描述了一种薄膜磁头，磁头具有绝缘层和具有上部和底部的突起，并且上部具有延伸部分。 绝缘层存在于延伸部分之下。 制造磁头的方法包括：在下芯层周围形成第一绝缘层; 同时通过将下芯线层与介于下线圈层和连接到第一绝缘层上的线圈层的线圈引线层之间的线圈绝缘底层电镀下芯层; 在所述线圈层和所述线圈引线层上形成无机材料的线圈绝缘层; 并且通过电镀同时形成用于形成上芯层的第一电镀底层，在通过电镀形成开口露出的第一线圈引线层上的第二电镀底层和载流引线层。

公开(公告)号：US07248437B2

公开(公告)日：2007-07-24

申请号：US10912946

申请日：2004-08-06

申请人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

发明人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

IPC分类号： G11B5/147 ,  G11B5/11 ,  B11B5/187

CPC分类号： G11B5/1278

摘要： In a non-magnetic material layer, a concave portion is formed above a groove G. In addition, an auxiliary magnetic pole layer is formed having a convex portion which extends in the direction toward a main magnetic pole layer and which is placed in the concave portion. Accordingly, since a magnetic flux B passing in a perpendicular magnetic recording head from the main magnetic pole layer to the auxiliary magnetic pole layer is generated, an appropriate adjustment of the intensity of a magnetic field A generated from the main magnetic pole layer can be easily performed, and the edge of a recording track on a recording medium M can be clearly defined.

摘要翻译： 在非磁性材料层中，在沟槽G的上方形成有凹部。此外，辅助磁极层形成为具有朝向主磁极层的方向延伸并且位于凹部 一部分。 因此，由于产生从主磁极层向垂直磁记录头通过辅助磁极层的磁通量B，所以能够容易地适当调整从主磁极层产生的磁场强度A 并且可以清楚地定义记录介质M上的记录轨道的边缘。

公开(公告)号：US07215512B2

公开(公告)日：2007-05-08

申请号：US10912651

申请日：2004-08-05

申请人： Hisayuki Yazawa ,  Toshinori Watanabe

发明人： Hisayuki Yazawa ,  Toshinori Watanabe

IPC分类号： G11B5/31

CPC分类号： G11B5/31

摘要： A thin-film magnetic head includes a magnetic pole, a magnetic circuit unit separate from the magnetic pole, and a coil layer. The magnetic pole has a predetermined shape in which the width of the bottom surface of an upper magnetic pole layer is larger than the width of the top surface of a lower magnetic pole layer. The core layer is disposed at the back in the height direction of the magnetic pole.

摘要翻译： 薄膜磁头包括磁极，与磁极分离的磁路单元和线圈层。 磁极具有预定形状，其中上磁极层的底表面的宽度大于下磁极层的顶表面的宽度。 芯层设置在磁极的高度方向的后方。

公开(公告)号：US20070070544A1

公开(公告)日：2007-03-29

申请号：US11524817

申请日：2006-09-21

申请人： Hisayuki Yazawa

发明人： Hisayuki Yazawa

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/313

摘要： A magnetic recording head is provided. The magnetic recording head comprises a main magnetic pole layer, a return path layer, and a coil layer. A facing surface faces a recording medium. A yoke layer is formed between the main magnetic pole layer and the return path layer. An extending front end portion is formed in the return path layer and the yoke layer is disposed inside the extending front end portion in a height direction. The main magnetic pole layer includes a front end and a rear end and the yoke layer is formed on the surface of the main magnetic pole layer to cover the base.

摘要翻译： 提供磁记录头。 磁记录头包括主磁极层，返回路径层和线圈层。 面向表面面向记录介质。 在主磁极层和返回路径层之间形成磁轭层。 延伸的前端部形成在返回路径层中，并且磁轭层在高度方向上设置在延伸的前端部的内侧。 主磁极层包括前端和后端，并且磁轭层形成在主磁极层的表面上以覆盖基座。

公开(公告)号：US07002778B2

公开(公告)日：2006-02-21

申请号：US10678863

申请日：2003-10-03

申请人： Hisayuki Yazawa

发明人： Hisayuki Yazawa

IPC分类号： G11B5/147

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3109 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3133 ,  G11B5/3909 ,  G11B5/3967 ,  G11B2005/3996

摘要： A magnetic head including a lower core layer and an upper core layer, a non-magnetic gap layer and a coil layer. The upper core layer is made of an FeNiX (X being an element of one of rhenium Re and molybdenum Mo). A concentration difference of the upper core layer between a concentration of iron by weight percent and a concentration of the element X by weight percent is set to be larger at a leading edge of the upper core layer than at a position of the upper core layer more backward than the leading edge. In this arrangement, the magnetic head is provided with improved overwrite characteristics and accommodates the use of high-frequency recording signals.

摘要翻译： 包括下芯层和上芯层的磁头，非磁隙层和线圈层。 上芯层由FeNiX（X是铼Re和Mo Mo中的一种元素）制成。 铁芯重量百分比浓度与元素X的重量百分比浓度之间的上部核心层的浓度差在上部芯层的前端处比在上部芯层的位置处更大 比前沿落后。 在这种布置中，磁头具有改进的重写特性并且适应于使用高频记录信号。

公开(公告)号：US20050057852A1

公开(公告)日：2005-03-17

申请号：US10937646

申请日：2004-09-09

申请人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

发明人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

IPC分类号： G11B5/31 ,  G11B5/127

CPC分类号： G11B5/1272 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49052

摘要： A perpendicular magnetic recording head includes a primary magnetic pole having a flat top surface. The magnetic head also includes a shield layer over the primary magnetic pole and at the sides of the primary magnetic pole in a single piece. The distance in the direction perpendicular to the thickness direction between the side surfaces of the primary magnetic pole and the side shield layer is longer than the distance in the thickness direction between the top surface of the primary magnetic pole and the shield layer.

摘要翻译： 垂直磁记录头包括具有平坦顶表面的主磁极。 磁头还包括主磁极上的屏蔽层，并且在一个单件中还包括主磁极的侧面处的屏蔽层。 在主磁极和侧屏蔽层的侧表面之间的垂直于厚度方向的方向上的距离比主磁极的顶表面和屏蔽层之间的厚度方向上的距离长。

公开(公告)号：US20050041337A1

公开(公告)日：2005-02-24

申请号：US10912946

申请日：2004-08-06

申请人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

发明人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

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

CPC分类号： G11B5/1278

摘要： In a non-magnetic material layer, a concave portion is formed above a groove G. In addition, an auxiliary magnetic pole layer is formed having a convex portion which extends in the direction toward a main magnetic pole layer and which is placed in the concave portion. Accordingly, since a magnetic flux B passing in a perpendicular magnetic recording head from the main magnetic pole layer to the auxiliary magnetic pole layer is generated, an appropriate adjustment of the intensity of a magnetic field A generated from the main magnetic pole layer can be easily performed, and the edge of a recording track on a recording medium M can be clearly defined.

摘要翻译： 在非磁性材料层中，在沟槽G的上方形成有凹部。此外，辅助磁极层形成为具有朝向主磁极层的方向延伸并且位于凹部 一部分。 因此，由于产生从主磁极层向垂直磁记录头通过辅助磁极层的磁通量B，所以能够容易地适当调整从主磁极层产生的磁场强度A 并且可以清楚地定义记录介质M上的记录轨道的边缘。

公开(公告)号：US07692896B2

公开(公告)日：2010-04-06

申请号：US11460922

申请日：2006-07-28

申请人： Hiroshi Kameda ,  Hisayuki Yazawa

发明人： Hiroshi Kameda ,  Hisayuki Yazawa

IPC分类号： G11B5/147

CPC分类号： G11B5/1278

摘要： A perpendicular magnetic recording head includes a main pole layer and a return path layer that are exposed from a medium-facing surface of the recording head facing a recording medium and that face each other with a predetermined gap therebetween at the medium-facing surface. A coil layer applies a recording magnetic field to the main pole layer and the return path layer. The return path layer includes a gap adjusting layer and a main layer stacked in that order from a side facing the main pole layer. The gap adjusting layer is positioned so as to face the main pole layer and the recording medium, and is made of a magnetic material having a resistivity lower than resistivities of the main layer and the main pole layer.

摘要翻译： 垂直磁记录头包括从面向记录介质的记录头的面向中间的表面露出的主极层和返回路径层，并且在面向介质的表面上以预定的间隙彼此面对。 线圈层向主极层和返回路径层施加记录磁场。 返回路径层包括从面向主极层的一侧依次层叠的间隙调整层和主层。 间隙调整层被定位为面对主极层和记录介质，并且由具有比主层和主极层的电阻率低的电阻率的磁性材料制成。

公开(公告)号：US07359148B2

公开(公告)日：2008-04-15

申请号：US10916029

申请日：2004-08-11

申请人： Hisayuki Yazawa

发明人： Hisayuki Yazawa

IPC分类号： G11B1/147

CPC分类号： G11B5/1878 ,  G11B5/1276 ,  H01F10/30

摘要： It is an object to provide a thin film magnetic head capable of improving characteristics and properties required of a gap layer by, in particular, appropriately controlling the compositional ratio of a NiPRe alloy used as the gap layer. A NiPRe alloy which has excellent chemical agent resistance, which maintains excellently a non-magnetic state even when heated at a high temperature, and which can suppress the element diffusion at the interface to a magnetic pole layer can be formed through plating by controlling the compositional ratio of the NiPRe alloy used as a gap layer at within the range enclosed by boundary lines A to E in a ternary diagram.

摘要翻译： 本发明的目的是提供一种能够通过适当地控制用作间隙层的NiPRe合金的组成比来改善间隙层所需的特性和性能的薄膜磁头。 即使在高温下加热也能保持非磁性状态，能够抑制与磁极层的界面处的元素扩散的耐化学试剂性优异的NiPRe合金，可以通过电镀来形成， 用作间隙层的NiPRe合金的比例在三边图中由边界线A至E包围的范围内。