公开(公告)号：US20080088972A1

公开(公告)日：2008-04-17

申请号：US11546961

申请日：2006-10-13

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Tatsushi Shimizu ,  Tatsuya Shimizu

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/112 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3136 ,  G11B5/315 ,  G11B5/3163 ,  G11B5/3169

摘要： A magnetic head comprises a pole layer, a first coil, a second coil, and a shield. The shield incorporates: a first portion located backward of the pole layer along the direction of travel of a recording medium; a second portion located forward of the pole layer along the direction of travel of the recording medium; and two coupling portions. The first portion has an end face located in a medium facing surface. The two coupling portions couple the first and second portions to each other without touching the pole layer. Part of the first coil passes through a space surrounded by the pole layer and the first portion. Part of the second coil passes through a space surrounded by the pole layer and the second portion.

摘要翻译： 磁头包括极层，第一线圈，第二线圈和屏蔽。 屏蔽包括：沿着记录介质的行进方向位于极层的后方的第一部分; 位于所述极层之前沿着所述记录介质的行进方向的第二部分; 和两个联接部分。 第一部分具有位于面向介质的表面中的端面。 两个耦合部分将第一和第二部分彼此耦合，而不接触极层。 第一线圈的一部分通过由极层和第一部分包围的空间。 第二线圈的一部分通过由极层和第二部分包围的空间。

公开(公告)号：US07227720B2

公开(公告)日：2007-06-05

申请号：US10871014

申请日：2004-06-21

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh

IPC分类号： G11B5/147

CPC分类号： G11B5/1872 ,  G11B5/1278 ,  G11B5/3143 ,  G11B5/3163

摘要： A pole layer has an end that is located in a medium facing surface and that incorporates a first side closer to a gap layer and a second side opposite to the first side. A shield layer has an end that is located in the medium facing surface and that has an edge on a side of the gap layer. This edge includes: a first portion facing toward the first side, the gap layer being disposed in between; two second portions that are disposed on both sides of the first portion opposed to each other in the direction of the track width and that are disposed such that a difference in level is created between the first portion and each of the second portions; a third portion connecting an end of the first portion to one of the second portions; and a fourth portion connecting the other end of the first portion to the other one of the second portions. Each of the above-mentioned difference in level and the distance between the straight line drawn in line with the second side and the second portions is smaller than the distance between the straight line and the first portion.

摘要翻译： 极层具有位于介质面向表面中并且包含更靠近间隙层的第一侧和与第一侧相对的第二侧的端部。 屏蔽层具有位于介质面向表面中的端部，并且在间隙层的侧面上具有边缘。 该边缘包括：面向第一侧的第一部分，间隙层设置在其间; 两个第二部分，其布置在第一部分的两侧，沿着轨道宽度的方向彼此相对，并且被布置成使得在第一部分和每个第二部分之间产生水平差; 将所述第一部分的端部连接到所述第二部分中的一个的第三部分; 以及将第一部分的另一端连接到另一个第二部分的第四部分。 上述的上述差异以及与第二侧和第二部分一致的直线之间的距离小于直线与第一部分之间的距离。

公开(公告)号：US20070041126A1

公开(公告)日：2007-02-22

申请号：US11207891

申请日：2005-08-22

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Kazuo Ishizaki

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Kazuo Ishizaki

IPC分类号： G11B5/147

CPC分类号： G11B5/3166 ,  G11B5/3163 ,  G11B5/3169 ,  G11B5/3173

摘要： A method of manufacturing magnetic heads comprises the steps of: fabricating a magnetic head substructure by forming components of a plurality of magnetic heads on a single substrate so that a plurality of rows of pre-head portions that will be the respective magnetic heads later are aligned in the substructure; and fabricating the magnetic heads by separating the pre-head portions from one another through cutting the substructure. Indicator sections are formed in the substructure. The indicator sections include first indicators and second indicators. Widths of the first and second indicators are equal in an imaginary surface indicating a target location of the medium facing surfaces. One of the widths of the first and second indicators decreases while the other increases with shifts in position along the direction orthogonal to the medium facing surfaces.

摘要翻译： 一种制造磁头的方法包括以下步骤：通过在单个基板上形成多个磁头的部件来制造磁头子结构，使得将成为相应磁头的多排前磁头部分排列在一起 在子结构中; 以及通过切割子结构将前头部彼此分开来制造磁头。 指示器部分形成在子结构中。 指标部分包括第一指标和第二指标。 第一和第二指示器的宽度在虚拟表面中相等，表示介质面对表面的目标位置。 第一和第二指示器的宽度之一减小，而另一个指示器沿着与面向介质的表面正交的方向上的位置偏移而增加。

公开(公告)号：US07151647B2

公开(公告)日：2006-12-19

申请号：US10682732

申请日：2003-10-10

申请人： Yoshitaka Sasaki ,  Takehiro Kamigama ,  Hiroyuki Itoh ,  Kazuo Ishizaki ,  Shigeki Tanemura ,  Hironori Araki

发明人： Yoshitaka Sasaki ,  Takehiro Kamigama ,  Hiroyuki Itoh ,  Kazuo Ishizaki ,  Shigeki Tanemura ,  Hironori Araki

IPC分类号： G11B5/187

CPC分类号： G11B5/3903

摘要： The invention is directed to improvement of a write element of a thin film magnetic head. In the write element, a first coil and a second coil are provided on a first insulating film formed on one surface of a first magnetic film and surround in a spiral form a back gap portion. A second yoke portion in the upper position comprises a wide portion, a narrow portion and a sloping flare portion. The wide portion has a flat surface and is connected to the first magnetic film by a back gap portion at the rear of the medium-facing surface. The narrow portion forms the second pole portion and the surface of the narrow portion being at a lower position than the surface of the wide portion. The sloping flare portion extends from the narrow portion to the wide portion, gradually increasing in width and its surface sloping upward away from the surface of the narrow portion to the surface of the wide portion.

摘要翻译： 本发明旨在改进薄膜磁头的写入元件。 在写入元件中，第一线圈和第二线圈设置在形成在第一磁性膜的一个表面上的第一绝缘膜上，并以螺旋形状包围后部间隙部分。 在上部位置的第二轭部包括宽部分，窄部分和倾斜的张开部分。 宽部分具有平坦的表面，并且通过位于介质表面的后部的后间隙部分连接到第一磁性膜。 窄部分形成第二极部分，并且窄部分的表面处于比宽部分的表面更低的位置。 倾斜的喇叭口部分从窄部分延伸到宽部分，宽度逐渐增加，并且其表面向上倾斜远离窄部分的表面到宽部分的表面。

公开(公告)号：US20060262440A1

公开(公告)日：2006-11-23

申请号：US11134477

申请日：2005-05-23

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Takehiro Kamigama ,  Tatsushi Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Takehiro Kamigama ,  Tatsushi Shimizu

IPC分类号： G11B5/00

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： A thin film magnetic head has a configuration in which a main magnetic pole film having a magnetic pole end portion on a medium opposing surface (ABS) side facing a magnetic disk, a write shield film facing the magnetic pole end portion so as to form a recording gap film on the medium opposing surface side, and a thin film coil wound around at least a part of the write shield film are laminated. Further, the thin film magnetic head has an upper yoke magnetic pole film whose size is larger than that of the main magnetic pole film at a part more distant from the ABS than the recording gap film, and this upper yoke magnetic pole film is bonded to the side of the main magnetic pole film close to the thin film coil. In the upper yoke magnetic pole film, an end portion on the ABS side is retracted in a direction apart from the ABS in accordance with an increase in film thickness which is measured from the surface of the main magnetic pole film.

摘要翻译： 薄膜磁头具有这样的结构，其中在与磁盘相对的介质相对表面（ABS）侧上具有磁极端部的主磁极膜，面对磁极端部的写入屏蔽膜以形成 记录间隙膜在介质相对表面侧上，并且缠绕在写保护膜的至少一部分上的薄膜线圈。 此外，薄膜磁头具有比记录间隙膜更远离ABS的部分的尺寸大于主磁极膜的上磁轭磁极膜，并且该上磁轭磁极膜粘合到 主磁极膜的一侧靠近薄膜线圈。 在上磁轭磁极膜中，根据从主磁极膜的表面测量的膜厚度的增加，ABS侧的端部沿与ABS隔离的方向缩回。

公开(公告)号：US20060061907A1

公开(公告)日：2006-03-23

申请号：US10944010

申请日：2004-09-20

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki

IPC分类号： G11B5/147

CPC分类号： G11B5/1278 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/4906 ,  Y10T29/49067

摘要： A magnetic head comprises a pole layer that allows a magnetic flux corresponding to a magnetic field generated by a coil to pass therethrough and that generates a write magnetic field for writing data on a recording medium by using the perpendicular magnetic recording system. The pole layer includes a track width defining portion having an end face located in a medium facing surface. An underlying layer is disposed below the track width defining portion. The end face of the track width defining portion located in the medium facing surface has a width that decreases as the distance from a side close to a substrate decreases. The width of the underlying layer taken in the medium facing surface is equal to or smaller than the length of the side close to the substrate. The underlying layer is made of a material whose etching rate of ion beam etching is higher than that of a magnetic alloy making up the pole layer.

摘要翻译： 磁头包括极层，其允许对应于由线圈产生的磁场的磁通通过，并且通过使用垂直磁记录系统产生用于将数据写入记录介质的写入磁场。 极层包括具有位于介质相对表面中的端面的轨道宽度限定部分。 底层设置在轨道宽度限定部分的下方。 位于介质相对表面中的轨道宽度限定部分的端面具有随着距靠近基板的一侧的距离减小而减小的宽度。 在与介质相对的表面中取下的下层的宽度等于或小于靠近基板的一侧的长度。 底层由离子束蚀刻的蚀刻速率高于构成极层的磁性合金的蚀刻速率的材料制成。

公开(公告)号：US20050285470A1

公开(公告)日：2005-12-29

申请号：US10523822

申请日：2003-08-07

申请人： Hiroyuki Itoh ,  Tadaaki Hourai

发明人： Hiroyuki Itoh ,  Tadaaki Hourai

IPC分类号： H02K3/26 ,  H02K17/00 ,  H01F7/06 ,  H02K1/22

CPC分类号： H02K3/26 ,  Y10T29/49071

摘要： A laminate coil for an integral n-phase motor (n is a natural number of 2 or more) having pluralities of coil poles formed by patterned conductor coils formed in a laminate constituted by pluralities of insulating layers, the laminate coil comprising input and output terminals formed on an outer surface of the laminate, a first connecting line connecting the input terminal to the coil poles, and second connecting lines series-connecting coil poles having the same polarity, the first and second connecting lines being formed by conductor patterns, and the coil poles being formed on pluralities of insulating layers sandwiched by the first and second connecting lines.

摘要翻译： 一种用于整体n相电动机的层叠线圈（n为2以上的自然数），具有由多个绝缘层构成的层叠体中形成的图案化导体线圈形成的多个线圈极，层叠线圈包括输入和输出端子 形成在所述层叠体的外表面上，将所述输入端子连接到所述线圈极的第一连接线和具有相同极性的第二连接线串联连接线圈极，所述第一和第二连接线由导体图案形成， 线圈极被形成在被第一和第二连接线夹持的多个绝缘层上。

公开(公告)号：US06940689B2

公开(公告)日：2005-09-06

申请号：US10463401

申请日：2003-06-18

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Takehiro Kamigama

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Takehiro Kamigama

IPC分类号： G11B5/17 ,  G11B5/31 ,  G11B5/39

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3163 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3967 ,  Y10T29/49032

摘要： A thin-film magnetic head comprises a medium facing surface, a bottom pole layer, a top pole layer, a coupling portion, a recording gap layer, and a thin-film coil. The coupling portion is disposed away from the medium facing surface and couples the bottom pole layer to the top pole layer. The recording gap layer is disposed between the pole portion of the bottom pole layer and the pole portion of the top pole layer. The bottom pole layer incorporates: a first layer disposed to face toward the thin-film coil; a second layer, a third layer and a fourth layer that are disposed near the medium facing surface; and a coupling layer disposed away from the medium facing surface and coupling the bottom pole layer to the top pole layer. The thin-film coil incorporates a first coil having turns part of which are disposed between the second layer and the coupling layer; a second coil having turns at least part of which are disposed between turns of the first coil; and a connecting layer disposed on a side of the third layer and connecting the first coil to the second coil in series.

摘要翻译： 薄膜磁头包括面向介质的表面，底极层，顶极层，耦合部分，记录间隙层和薄膜线圈。 耦合部分远离介质面向表面设置，并将底极层耦合到顶极层。 记录间隙层设置在底极层的极部和顶极层的极部之间。 底极层包括：面向薄膜线圈设置的第一层; 第二层，第三层和第四层，其设置在所述介质相对表面附近; 以及耦合层，其远离所述介质面对表面并且将所述底极层耦合到所述顶极层。 所述薄膜线圈包括第一线圈，所述第一线圈的一部分设置在所述第二层和所述耦合层之间; 第二线圈的至少一部分设置在第一线圈的匝之间， 以及连接层，设置在第三层的一侧，并将第一线圈串联连接到第二线圈。

公开(公告)号：US06905437B2

公开(公告)日：2005-06-14

申请号：US10412798

申请日：2003-04-11

申请人： Hiroyuki Itoh ,  Takashi Imanishi ,  Nobuo Goto ,  Yasuo Murakami ,  Tomonobu Yoshikawa

发明人： Hiroyuki Itoh ,  Takashi Imanishi ,  Nobuo Goto ,  Yasuo Murakami ,  Tomonobu Yoshikawa

IPC分类号： F16H15/38 ,  F16C33/58

CPC分类号： F16H15/38 ,  F16C19/10 ,  F16C33/585 ,  F16C33/64 ,  F16C2240/54 ,  F16C2361/65 ,  Y02T10/865

摘要： A power roller bearing of a toroidal-type continuously variable transmission unit that is used for a transmission of an automobile or the like comprises a power roller, an outer race, balls, a retainer, etc. Annular raceway grooves are formed individually on the respective opposite end faces of the outer race and the power roller. Treated-surface layers for enhancing the endurance of the power roller bearing are formed individually on the respective surfaces of the raceway grooves. The treated-surface layers include super-finished surfaces with the surface roughness of 0.05 Rad or less, formed individually on the raceway grooves, and low-friction layers formed individually on the super-finished surfaces. Alternatively, the treated-surface layers include residual compression stress layers formed on the respective surface layer portions of the raceway grooves by shot-preening.

摘要翻译： 用于汽车等的变速器的环形无级变速器单元的动力滚子轴承包括动力辊，外圈，球，保持器等。环形滚道槽分别形成在各自的上方 外圈和动力辊的相对端面。 用于提高动力滚子轴承的耐久性的处理表面层分别形成在滚道槽的各个表面上。 经处理的表面层包括单独形成在滚道槽上的表面粗糙度为0.05rad或更小的超精加工表面，以及分别形成在超表面上的低摩擦层。 或者，经处理的表面层包括通过喷丸加工形成在滚道槽的各个表层部分上的残余压缩应力层。

公开(公告)号：US20050068675A1

公开(公告)日：2005-03-31

申请号：US10673172

申请日：2003-09-30

申请人： Yoshitaka Sasaki ,  Takehiro Kamigama ,  Hiroyuki Itoh

发明人： Yoshitaka Sasaki ,  Takehiro Kamigama ,  Hiroyuki Itoh

IPC分类号： G11B5/147 ,  G11B5/17 ,  G11B5/31 ,  G11B5/39

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/3906 ,  G11B5/3909 ,  G11B2005/3996 ,  Y10T29/4906 ,  Y10T29/49062 ,  Y10T29/49064

摘要： The invention is directed to improvement of a write element of a thin film magnetic head. In said write element, a first coil and a second coil are provided on a first insulating film formed on one surface of a first magnetic film and surround in a spiral form a back gap portion. One of the first coil and the second coil is fitted into the space between coil turns of the other, insulated from the coil turns of the other by a second insulating film, and the first and second coils are connected to each other so as to generate magnetic flux in the same direction. One of said first coil and said second coil has a side surface being adjacent to the pole portion with the second insulating film and another side surface being adjacent to the back gap portion with the second insulating film, and each of said side surfaces has a taper angle making the sectional shape of the coil narrower in the lower part and wider in the upper part. The upper surfaces of said first and second coils form the same plane.

摘要翻译： 本发明旨在改进薄膜磁头的写入元件。 在所述写入元件中，第一线圈和第二线圈设置在形成在第一磁性膜的一个表面上的第一绝缘膜上，并以螺旋形式包围在后部间隙部分中。 第一线圈和第二线圈之一被安装在另一个的线圈匝之间的空间中，通过第二绝缘膜与另一个的线圈匝绝缘，并且第一和第二线圈彼此连接以产生 磁通在同一方向。 所述第一线圈和所述第二线圈中的一个具有与所述极部相邻的侧表面与所述第二绝缘膜，并且另一侧表面与所述第二绝缘膜邻近所述后间隙部分，并且每个所述侧表面具有锥形 角度使得线圈的截面形状在下部变窄并且在上部较宽。 所述第一和第二线圈的上表面形成相同的平面。