公开(公告)号：US20070230041A1

公开(公告)日：2007-10-04

申请号：US11692046

申请日：2007-03-27

申请人： Sumihito Morita ,  Kiyoshi Kobayashi ,  Toru Takahashi

发明人： Sumihito Morita ,  Kiyoshi Kobayashi ,  Toru Takahashi

IPC分类号： G11B5/17 ,  G11B5/147

CPC分类号： G11B5/17 ,  G11B5/3123 ,  G11B5/3136

摘要： A thin-film magnetic head is capable of securing an insulating property and minimizing the projection of a recording element section due to heat expansion. The thin-film magnetic head includes a pair of magnetic layers disposed with a predetermined gap therebetween on a surface facing a recording medium. The layers are connected to each other along an inner part in a height direction from the medium-facing surface. A spiral recording coil is disposed between the pair of magnetic layers and wound around a connecting portion of the pair of magnetic layers. The recording coil includes a dense coil portion formed with a pitch smaller than that of the inner part in the height direction so as to be closer to the medium-facing surface than the connecting portion. An organic insulating layer is locally formed to fill coil gaps of the dense coil portion, and coil gaps other than those of the dense coil portion are filled with an inorganic insulating layer.

摘要翻译： 薄膜磁头能够确保绝缘性能，并且由于热膨胀使记录元件部分的投影最小化。 薄膜磁头包括在与记录介质相对的表面上以预定间隙设置的一对磁性层。 这些层沿着与介质相对表面在高度方向上的内部部分彼此连接。 螺旋记录线圈设置在一对磁性层之间，并缠绕在一对磁性层的连接部分上。 记录线圈包括致密线圈部分，其形成为具有比内部部分在高度方向上的间距更小的间距，以便比连接部分更靠近中间面。 局部地形成有机绝缘层以填充致密线圈部分的线圈间隙，而不是致密线圈部分的线圈间隙填充有无机绝缘层。

公开(公告)号：US20070211381A1

公开(公告)日：2007-09-13

申请号：US11684455

申请日：2007-03-09

申请人： Kiyoshi Kobayashi ,  Kunio Koizumi ,  Kenji Ichinohe

发明人： Kiyoshi Kobayashi ,  Kunio Koizumi ,  Kenji Ichinohe

IPC分类号： G11B5/147

CPC分类号： G11B5/314 ,  G11B5/6005 ,  G11B5/6064 ,  G11B2005/0005

摘要： A thin-film magnetic head which can locally project a reproduction element toward a recording medium and a method of manufacturing the thin-film magnetic head are provided. The thin-film magnetic head includes a reproduction element, a recording element which is stacked on the reproduction element and has a pair of magnetic core layers and a coil layer configured to apply a recording magnetic field to the magnetic core layers, and a heat-emitting member emitting heat by electrification, which causes the reproduction element to project toward the recording medium by thermal expansion. The heat-emitting member is disposed below the coil layer.

摘要翻译： 本发明提供一种将再现元件局部投影到记录介质上的薄膜磁头和薄膜磁头的制造方法。 薄膜磁头包括再现元件，堆叠在再现元件上并具有一对磁芯层的记录元件和被配置为向磁芯层施加记录磁场的线圈层， 发光部件通过带电发出热量，这导致再现元件通过热膨胀向记录介质突出。 发热部件设置在线圈层的下方。

公开(公告)号：US20070195455A1

公开(公告)日：2007-08-23

申请号：US11676113

申请日：2007-02-16

申请人： Kiyoshi Kobayashi ,  Hiroshi Kameda

发明人： Kiyoshi Kobayashi ,  Hiroshi Kameda

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： A perpendicular magnetic recording head is provided. The perpendicular magnetic recording head includes a main magnetic pole layer overlapped with a sub-yoke layer. The sub-yoke layer having a multiple-magnetic domain includes a magnetic domain having dominant track-widthwise component in contact with a front end face of the sub-yoke layer. A main magnetic pole layer 24 is overlapped with the magnetic domain 35b and is affected by the magnetic domain 35b.

摘要翻译： 提供垂直磁记录头。 垂直磁记录头包括与副轭铁层重叠的主磁极层。 具有多磁畴的子轭层包括具有与副轭铁层的前端面接触的主导轨宽分量的磁畴。 主磁极层24与磁畴35b重叠，并受到磁畴35b的影响。

公开(公告)号：US20070121246A1

公开(公告)日：2007-05-31

申请号：US11564747

申请日：2006-11-29

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3912 ,  G11B5/3967

摘要： A thin-film magnetic head and method of manufacturing the same are provided. The thin-film magnetic head includes a reading head that includes a reading element. A writing head is formed above the reading head. The writing head includes a first magnetic part and a second magnetic part that are connected with each other with a gap therebetween at a predetermined distance in a height direction side. A solenoidal coil layer that is formed by connecting ends of a first coil layer. The first magnetic part is formed on a first coil insulating layer and electrically connected with a conductive layer.

摘要翻译： 提供了一种薄膜磁头及其制造方法。 薄膜磁头包括读取头，读头包括读取元件。 书写头形成在阅读头的上方。 写头包括在高度方向侧以预定距离彼此间隔开的第一磁性部分和第二磁性部分。 螺线管线圈层，其通过连接第一线圈层的端部而形成。 第一磁性部件形成在第一线圈绝缘层上并与导电层电连接。

公开(公告)号：US20070115594A1

公开(公告)日：2007-05-24

申请号：US11624332

申请日：2007-01-18

申请人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

发明人： Toru Takahashi ,  Hisayuki Yazawa ,  Hideki Gochou ,  Kiyoshi Kobayashi ,  Minoru Yamada ,  Kiyoshi Sato ,  Toshinori Watanabe

IPC分类号： G11B5/33

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed on the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily-introduce a recording magnetic field to a fore end of the main magnetic pole layer.

摘要翻译： 在平坦化面平坦化的绝缘层上形成有主磁极层，独立于主磁极，在主磁极层上形成膜厚大的磁轭层。 主磁极层的前端表面形成为具有随着前端表面离开辅助磁极层而在轨道宽度方向上逐渐增加的宽度尺寸的形状。 可以提供一种垂直磁记录头，其可以抑制记录图案中的边缘的发生，并且可以以高图案精度形成主磁极层，并且可以令人满意地将记录磁场引入主磁体的前端 极层。

公开(公告)号：US20070067982A1

公开(公告)日：2007-03-29

申请号：US11525182

申请日：2006-09-21

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/127

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49071 ,  Y10T29/49073

摘要： A method of manufacturing a perpendicular magnetic recording head is provided. The method accurately defines a gap layer. The method includes forming a lower gap layer made of a non-magnetic material on a main magnetic pole layer. An upper gap layer is formed on the lower gap layer, the upper gap layer being made of the non-magnetic material. A resist layer is formed on the upper gap layer, and the resist layer is removed from an end surface. The upper gap layer not covered with the resist layer is removed, while exposing a new film surface by removing a surface oxidation layer of the resist layer. A return path layer is formed by plating on the exposed lower gap layer, the upper gap layer, and the resist layer through the plating underlayer.

摘要翻译： 提供一种制造垂直磁记录头的方法。 该方法精确地定义了间隙层。 该方法包括在主磁极层上形成由非磁性材料制成的下间隙层。 上间隙层形成在下间隙层上，上间隙层由非磁性材料制成。 在上间隙层上形成抗蚀剂层，并且从端面去除抗蚀剂层。 除去未被抗蚀剂层覆盖的上间隙层，同时通过除去抗蚀剂层的表面氧化层而暴露新的膜表面。 通过电镀底层在暴露的下间隙层，上间隙层和抗蚀剂层上电镀形成返回路径层。

公开(公告)号：US06922311B2

公开(公告)日：2005-07-26

申请号：US10405662

申请日：2003-04-02

申请人： Kiyoshi Kobayashi

发明人： Kiyoshi Kobayashi

IPC分类号： G11B5/31 ,  G11B5/147

CPC分类号： G11B5/3133 ,  G11B5/3136

摘要： A thin film magnetic head suitable for an increase in a packing density and an increase in frequency of a magnetic recorder is provided, while the reliability is maintained, and protrusion of a recording head portion from a surface facing a magnetic disk due to thermal expansion is reduced. In the region between a joint and a recording portion, the spacing dimension between the conductive layers of a first coil adjacent to each other is allowed to be equal to the height dimension of the conductive layer of the first coil, and the space of the first coil is filled in with an inorganic material portion of an insulating layer. Regarding the perimeter and the inside of the first coil, the portion which cannot be filled in with the inorganic material portion of the insulating layer leaving no space is filled in with an organic material portion, so that insulation is provided with reliability, and thermal expansion of the insulating film due to the heat release from the first coil is reduced by an inorganic material unlikely to thermally expand.

摘要翻译： 提供了一种适合于提高磁记录器的堆积密度和频率增加的薄膜磁头，同时保持可靠性，并且记录头部从热膨胀面对磁盘的表面突出是 减少 在接头和记录部分之间的区域中，允许彼此相邻的第一线圈的导电层之间的间隔尺寸等于第一线圈的导电层的高度尺寸，第一线圈的空间 线圈填充有绝缘层的无机材料部分。 关于第一线圈的周边和内部，不能填充绝缘层的无机材料部分而不留空间的部分被填充有机材料部分，从而提供可靠的绝缘性，并且热膨胀 由于不能热膨胀的无机材料而导致的由第一线圈的热释放引起的绝缘膜的损耗减小。

公开(公告)号：US20050039324A1

公开(公告)日：2005-02-24

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： G11B5/31 ,  G11B5/39 ,  G11B5/60

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：US06714529B1

公开(公告)日：2004-03-30

申请号：US09517850

申请日：2000-03-02

申请人： Kazuhiro Tanabe ,  Kiyoshi Kobayashi ,  Hiroshi Kazama

发明人： Kazuhiro Tanabe ,  Kiyoshi Kobayashi ,  Hiroshi Kazama

IPC分类号： H04J100

CPC分类号： G01L3/1478 ,  H04J1/05

摘要： A signal demultiplexer includes serially-connected 2-demultiplexing filter banks, including band-stop filters and down-samplers for culling sampling frequencies of output signals from filters to 1/2. When the 2-demultiplexing filter bank operates on four types of filters, first to fourth filters in an ascending order of frequencies, 2-demultiplexing filter bank is arranged in one of two configurations so that a first filter bank contains at least the first filter or the second filter, or a second filter bank contains at least the third filter or the fourth filter. The filter banks are connected in such a way that signals processed through the first filter are processed by the first 2-demultiplexing filter bank in a next-stage; signals processed through the second filter are processed by the second 2-demultiplexing filter bank in a next-stage. Signals processed through the third filter are processed by the first 2-demultiplexing filter bank in a next-stage; and signals processed through the fourth filter are processed by the second 2-demultiplexing filter bank in a next-stage.

摘要翻译： 信号解复用器包括串行连接的2解复用滤波器组，包括带通滤波器和下采样器，用于将从滤波器到输出信号的采样频率剔除到1/2。 当2解复用滤波器组以四种类型的滤波器操作时，以频率的升序对第一至第四滤波器进行操作，将二分离滤波器组布置成两种配置中的一种，使得第一滤波器组至少包含第一滤波器或 第二滤波器或第二滤波器组至少包含第三滤波器或第四滤波器。 滤波器组以这样的方式连接，使得通过第一滤波器处理的信号由下一级中的第一2-解复用滤波器组处理; 通过第二滤波器处理的信号由下一级中的第二2-解复用滤波器组进行处理。 通过第三滤波器处理的信号由下一级中的第一2-解复用滤波器组处理; 并且通过第四滤波器处理的信号在下一级由第二2-解复用滤波器组进行处理。

公开(公告)号：US06697221B2

公开(公告)日：2004-02-24

申请号：US10024965

申请日：2001-12-18

申请人： Kiyoshi Sato ,  Toshinori Watanabe ,  Hideki Gochou ,  Hisayuki Yazawa ,  Kiyoshi Kobayashi ,  Akira Koyama

发明人： Kiyoshi Sato ,  Toshinori Watanabe ,  Hideki Gochou ,  Hisayuki Yazawa ,  Kiyoshi Kobayashi ,  Akira Koyama

IPC分类号： G11B539

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10S977/934

摘要： A perpendicular magnetic recording head includes an auxiliary magnetic pole layer exposed at a surface facing a recording medium, a main magnetic pole layer deposited on the auxiliary magnetic pole layer with an insulating layer therebetween, a coil layer for applying a recording magnetic field to the auxiliary magnetic pole layer and the main magnetic pole layer, and a connecting layer placed on the auxiliary magnetic pole layer toward the back from the surface facing the recording medium. At the surface facing the recording medium, the upper base of the main magnetic pole layer is wider than the lower base so that the width in the track width direction of the main magnetic pole layer gradually increases with distance from the auxiliary magnetic pole layer. A method for making such a perpendicular magnetic recording head is also disclosed.

摘要翻译： 垂直磁记录头包括在面向记录介质的表面上暴露的辅助磁极层，沉积在其上具有绝缘层的辅助磁极层上的主磁极层，用于向辅助磁极层施加记录磁场的线圈层 磁极层和主磁极层，以及从面向记录介质的表面朝向辅助磁极层的连接层。 在面对记录介质的表面上，主磁极层的上基底比下基底宽，使得主磁极层的磁道宽度方向上的宽度随着与辅助磁极层的距离而逐渐增加。 还公开了一种用于制造这种垂直磁记录头的方法。