公开(公告)号：US08125733B2

公开(公告)日：2012-02-28

申请号：US12037369

申请日：2008-02-26

申请人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

发明人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

IPC分类号： G11B21/21

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163

摘要： A perpendicular magnetic recording head includes a main magnetic pole layer; and a return yoke layer laminated on the main magnetic pole layer with a magnetic gap layer formed of a nonmagnetic material disposed on an opposing surface opposite a recording medium. The return yoke layer includes a first throat part opposing the main magnetic pole layer at a side close to the recording medium-opposing surface with a first gap spacing corresponding to a film thickness of the magnetic gap layer; and a second throat part extending to a deeper side than the first throat part in a height direction and opposing the main magnetic pole layer with a second gap spacing greater than the first gap spacing. A throat height determining layer is provided on the main magnetic pole layer or the magnetic gap layer, the throat height determining layer defining a dimension of the first throat part of the return yoke layer in the height direction and formed of an inorganic nonmagnetic material.

摘要翻译： 垂直磁记录头包括主磁极层; 以及层叠在主磁极层上的返回轭层，其具有由设置在与记录介质相对的相对表面上的非磁性材料形成的磁隙层。 返回轭层包括在接近记录介质相对表面的一侧与主磁极层相对的第一喉部，第一间隙间隔对应于磁隙层的膜厚度; 以及第二喉部，其在高度方向上延伸到比第一喉部更深的一侧，并且具有大于第一间隙间隔的第二间隙间隔与主磁极层相对。 喉部高度确定层设置在主磁极层或磁隙层上，喉部高度确定层限定返回磁轭层的高度方向的第一喉部的尺寸，并由无机非磁性材料形成。

公开(公告)号：US08085500B2

公开(公告)日：2011-12-27

申请号：US12107368

申请日：2008-04-22

申请人： Hisayuki Yazawa ,  Takahiro Taoka ,  Hiroshi Kameda

发明人： Hisayuki Yazawa ,  Takahiro Taoka ,  Hiroshi Kameda

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： In a perpendicular magnetic recording head in which a magnetic pole part of a main magnetic pole layer exposed at a medium-opposing surface exhibits a trapezoidal form narrower on the leading edge side than on the trailing edge side, a pair of partial side shield layers made of a soft magnetic material are provided on both sides in the track width direction of the magnetic pole part of the main magnetic pole layer such as to be located more on the leading edge side of the magnetic pole part.

摘要翻译： 在垂直磁记录头中，在中间相对表面上露出的主磁极层的磁极部分在前缘侧比后缘侧呈梯形变窄，形成一对局部侧屏蔽层 软磁性材料的两侧设置在主磁极层的磁极部的磁道宽度方向上，以便位于磁极部的前缘侧。

公开(公告)号：US07990655B2

公开(公告)日：2011-08-02

申请号：US12107394

申请日：2008-04-22

申请人： Hisayuki Yazawa ,  Takahiro Taoka ,  Hiroshi Kameda

发明人： Hisayuki Yazawa ,  Takahiro Taoka ,  Hiroshi Kameda

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： In a perpendicular magnetic recording head in which a magnetic pole part of a main magnetic pole layer exposed at a medium-opposing surface exhibits a trapezoidal form narrower at a leading edge than at a trailing edge on the return yoke layer side, a magnetic shield layer having a pair of side shield parts separated at the leading edge so as to oppose both side faces of the magnetic pole part and a bottom shield part magnetically connected to the pair of side shield parts and positioned below the leading edge of the magnetic pole part is provided on the leading edge side in the track width direction of the magnetic pole part of the main magnetic pole layer.

摘要翻译： 在垂直磁记录头中，其中在中间相对表面上暴露的主磁极层的磁极部分在前缘处比在返回磁轭层侧的后缘处呈梯形变窄，磁屏蔽层 具有一对在前缘分离以与磁极部的两个侧面相对的侧面屏蔽部分和与该一对侧面屏蔽部分磁性连接并位于磁极部分的前缘下方的底部屏蔽部分， 设置在主磁极层的磁极部的轨道宽度方向的前缘侧。

公开(公告)号：US20100281980A1

公开(公告)日：2010-11-11

申请号：US12841748

申请日：2010-07-22

申请人： Hisayuki Yazawa ,  Kiyoshi Sato ,  Katsuya Kikuiri ,  Toru Takahashi ,  Hisanobu Ohkawa

发明人： Hisayuki Yazawa ,  Kiyoshi Sato ,  Katsuya Kikuiri ,  Toru Takahashi ,  Hisanobu Ohkawa

IPC分类号： G01P15/125

CPC分类号： G01P15/125 ,  B81B3/0078 ,  B81B2201/0235 ,  B81B2203/053 ,  G01P15/0802 ,  G01P2015/0831

摘要： A physical quantity sensor includes a support substrate, anchor portions fixed to a top surface of the support substrate, a movable portion positioned above the support substrate and supported by the anchor portions with support portions provided therebetween such that the movable portion is movable in a height direction, and detection portions for detecting a displacement of the movable portion. The support portions include beam portions provided between the movable portion and the anchor portions such that spring portions are provided between the beam portions and each of the movable portion and the anchor portions, the beam portions having a rigidity higher than a rigidity of the spring portions. The movable portion translates in the height direction owing to twisting of the spring portions and displacements in the height direction of distal ends of the beam portions, the movable portion being supported at the distal end.

摘要翻译： 物理量传感器包括支撑基板，固定到支撑基板的顶表面的锚定部分，位于支撑基板上方并由锚定部分支撑的可移动部分，其中支撑部分设置在支撑基板之间，使得可移动部分能够在高度 方向和检测部分，用于检测可动部分的位移。 支撑部分包括设置在可动部分和锚固部分之间的梁部分，使得弹簧部分设置在梁部分与可动部分和锚固部分中的每一个之间，梁部分的刚度高于弹簧部分的刚度 。 可移动部分由于弹簧部分的扭转和梁部分的远端的高度方向上的位移而在高度方向上平移，可移动部分被支撑在远端。

公开(公告)号：US07489473B2

公开(公告)日：2009-02-10

申请号：US11338005

申请日：2006-01-24

申请人： Hisayuki Yazawa

发明人： Hisayuki Yazawa

IPC分类号： G11B5/17 ,  G11B5/187

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

摘要： A magnetic head includes a first magnetic layer in which a face, opposed to a recording medium, having a size equal to a track width in a track width direction; a second magnetic layer in which a face, opposed to the recording medium, having a size greater than the track width in the track width direction, the first and second magnetic layers being spaced from each other in an element thickness direction, the first and second magnetic layers being connected to each other at a region located in a height direction; and a coil layer, located far from the opposed faces, for applying recording magnetic fields to the first and second magnetic layers such that magnetic data is recorded on the recording medium with a perpendicular magnetic field concentrated on the first magnetic layer.

摘要翻译： 磁头包括第一磁性层，其中与记录介质相对的具有与轨道宽度方向上的轨道宽度相等的尺寸的面; 第二磁性层，其中与所述记录介质相对的具有大于所述磁道宽度方向上的磁道宽度的面，所述第一和第二磁性层在元件厚度方向上彼此间隔开，所述第一和第二磁性层 磁性层在位于高度方向的区域彼此连接; 以及位于远离相对面的线圈层，用于向第一和第二磁性层施加记录磁场，使得磁性数据以集中在第一磁性层上的垂直磁场记录在记录介质上。

公开(公告)号：US20070217079A1

公开(公告)日：2007-09-20

申请号：US11749075

申请日：2007-05-15

申请人： KIYOSHI SATO ,  Hideki Gochou ,  Hisayuki Yazawa

发明人： KIYOSHI SATO ,  Hideki Gochou ,  Hisayuki Yazawa

IPC分类号： G11B5/33

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/313 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/3163 ,  G11B5/3903 ,  G11B5/40 ,  G11B2005/3996 ,  Y10T29/49034 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49073 ,  Y10T428/1143 ,  Y10T428/1171 ,  Y10T428/1193 ,  Y10T428/3183

摘要： A lower shield layer is formed by being embedded in a first recess formed in an under layer. Accordingly, the distance between the lower shield layer and a slider can be reduced. Also, a second metal layer is formed from above a gap layer covering an electrode extracting layer over above the under layer hindwards therefrom. Accordingly, the second metal layer can be brought closer to the slider side than an upper shield layer. Consequently, the thermal dissipation effects of the thin-film magnetic head can be improved.

摘要翻译： 下屏蔽层通过嵌入形成在下层中的第一凹部中而形成。 因此，可以减小下屏蔽层和滑块之间的距离。 此外，从位于下层以上的电极提取层的间隙层的上方形成第二金属层。 因此，第二金属层可以比上屏蔽层更靠近滑块侧。 因此，可以提高薄膜磁头的散热效果。

公开(公告)号：US07181828B2

公开(公告)日：2007-02-27

申请号：US10913200

申请日：2004-08-06

申请人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

发明人： Hisayuki Yazawa ,  Kiyoshi Kobayashi

IPC分类号： G11B5/187 ,  B44C1/22

CPC分类号： G11B5/3903 ,  G11B5/3103 ,  Y10T29/49021 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： In a method for manufacturing a perpendicular magnetic recording head, a groove defined by the inner side surfaces of a first nonmagnetic layer and the top surface of a main magnetic pole layer is formed using the difference in etching rates for dry etching between the main magnetic pole layer and the first nonmagnetic layer. An auxiliary magnetic pole layer is formed on the groove with a nonmagnetic material layer disposed therebetween. A projection integrated with the auxiliary magnetic pole layer is formed in a recess of the nonmagnetic material layer on the groove. This projection extends toward the main magnetic pole layer.

摘要翻译： 在垂直磁记录头的制造方法中，使用主磁极之间的干法蚀刻的蚀刻速度差，形成由第一非磁性层的内侧面和主磁极层的顶面形成的槽 层和第一非磁性层。 在沟槽上形成辅助磁极层，其间设有非磁性材料层。 与辅助磁极层集成的突起形成在凹槽上的非磁性材料层的凹部中。 该突起朝向主磁极层延伸。

公开(公告)号：US20050036237A1

公开(公告)日：2005-02-17

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 ,  G11B5/147

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：US20050034789A1

公开(公告)日：2005-02-17

申请号：US10916029

申请日：2004-08-11

申请人： Hisayuki Yazawa

发明人： Hisayuki Yazawa

IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/187 ,  H01F10/30 ,  H01F1/18

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

摘要： A thin film magnetic head having a NiPRe alloy used as the gap layer. The gap layer may be formed by plating. The compositional ratio is selected such that the NiPRe alloy has resistance to chemical agents, and maintains a non-magnetic state even when heated at temperatures exceeding 200° C.

摘要翻译： 具有NiPRe合金的薄膜磁头作为间隙层。 间隙层可以通过电镀形成。 选择组成比使得NiPRe合金具有对化学试剂的抗性，并且即使在超过200℃的温度下加热时也保持非磁性状态。

公开(公告)号：US06768611B2

公开(公告)日：2004-07-27

申请号：US09802287

申请日：2001-03-08

申请人： Kiyoshi Sato ,  Toshinori Watanabe ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Hisayuki Yazawa ,  Masaki Ikegami

发明人： Kiyoshi Sato ,  Toshinori Watanabe ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Hisayuki Yazawa ,  Masaki Ikegami

IPC分类号： G11B5127

CPC分类号： G11B5/312 ,  G11B5/3116 ,  G11B5/3967

摘要： In a thin film magnetic head, a face surface faces a recording medium and a front surface of an upper core layer is a curved surface which gradually retreats in a height direction generally perpendicular to the face surface as it approaches both sides thereof, and the thickness of the upper core layer gradually increases in the height direction. It is thus possible to appropriately suppress the occurrence of side fringing, efficiently cause a magnetic flux to flow from the upper core layer to an upper pole layer, and make the thin film magnetic head adaptable to a higher recording density.

摘要翻译： 在薄膜磁头中，表面面向记录介质，上芯层的前表面是曲面，当曲面接近其两侧时，其大致垂直于表面的高度方向逐渐退缩，并且厚度 的上芯层在高度方向上逐渐增加。 因此，可以适当地抑制侧边缘的发生，有效地使磁通从上芯层流到上极层，并使薄膜磁头适应于更高的记录密度。