公开(公告)号：US07916425B2

公开(公告)日：2011-03-29

申请号：US11812757

申请日：2007-06-21

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura ,  Kazuo Ishizaki ,  Lijie Guan ,  Takehiro Horinaka

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura ,  Kazuo Ishizaki ,  Lijie Guan ,  Takehiro Horinaka

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： A magnetic head includes: a pole layer; a nonmagnetic layer disposed on part of the top surface of the pole layer; a gap layer disposed on the pole layer and the nonmagnetic layer; and a shield disposed on the gap layer. The top surface of the pole layer includes: a first portion having a first edge located in a medium facing surface and a second edge opposite thereto; and a second portion located farther from the medium facing surface than the first portion and connected to the first portion at the second edge. The first portion is inclined with respect to a direction orthogonal to the medium facing surface so that the distance from a substrate increases with increasing distance from the medium facing surface. The nonmagnetic layer has a bottom surface touching the second portion, and this bottom surface has an edge located at the second edge.

摘要翻译： 磁头包括：极层; 设置在所述极层的顶表面的一部分上的非磁性层; 设置在所述极层和所述非磁性层上的间隙层; 以及设置在间隙层上的屏蔽件。 极层的顶表面包括：第一部分，其具有位于介质相对表面中的第一边缘和与其相对的第二边缘; 以及位于比所述第一部分更远离所述介质面对表面并且在所述第二边缘处连接到所述第一部分的第二部分。 第一部分相对于与介质相对表面正交的方向倾斜，使得距衬底的距离随着距离介质面向表面的距离的增加而增加。 非磁性层具有接触第二部分的底面，该底面具有位于第二边缘的边缘。

公开(公告)号：US07910011B2

公开(公告)日：2011-03-22

申请号：US12153987

申请日：2008-05-28

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

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

IPC分类号： B44C1/22

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

摘要： A magnetic head includes: a pole layer including a track width defining portion and a wide portion; and an encasing layer disposed on a bottom forming layer and having a groove that accommodates the pole layer. The groove includes a first portion for accommodating at least part of the track width defining portion, and a second portion for accommodating at least part of the wide portion. A manufacturing method for the magnetic head includes: the step of etching a nonmagnetic layer that will become the encasing layer later, such that an initial groove including the first portion is formed in the nonmagnetic layer; the step of forming an initial groove mask covering the first portion; and a second etching step for etching the nonmagnetic layer so as to complete the groove. When the second etching step starts, a portion of the top surface of the bottom forming layer located in a region in which the second portion is to be formed is covered with the nonmagnetic layer or the initial groove mask.

摘要翻译： 磁头包括：包括轨道宽度限定部分和宽部分的极层; 以及设置在底部形成层上并具有容纳极层的槽的封装层。 凹槽包括用于容纳轨道宽度限定部分的至少一部分的第一部分和用于容纳至少部分宽部分的第二部分。 磁头的制造方法包括以下步骤：在非磁性层中形成包含第一部分的初始槽，从而蚀刻将成为封装层的非磁性层; 形成覆盖所述第一部分的初始槽掩模的步骤; 以及用于蚀刻非磁性层以完成凹槽的第二蚀刻步骤。 当第二蚀刻步骤开始时，位于要形成第二部分的区域中的底部形成层的顶表面的一部分被非磁性层或初始凹槽掩模覆盖。

公开(公告)号：US07870660B2

公开(公告)日：2011-01-18

申请号：US12379044

申请日：2009-02-11

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

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

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A magnetic head includes: an encasing layer made of a nonmagnetic material and having a groove that opens in the top surface; a nonmagnetic metal layer made of a nonmagnetic metal material, disposed on the top surface of the encasing layer, and having a penetrating opening that is contiguous to the groove; and a pole layer made of a magnetic metal material and encased in the groove of the encasing layer and in the opening of the nonmagnetic metal layer. The pole layer has an end face located in a medium facing surface, the end face having a first portion and a second portion that is located farther from a substrate than the first portion and connected to the first portion. The first portion has a width that decreases as the distance from the substrate decreases. The second portion has a uniform width that defines the track width. In the medium facing surface, the nonmagnetic metal layer exists on both sides of the second portion, the sides being opposed to each other in the direction of track width.

摘要翻译： 磁头包括：由非磁性材料制成并具有在顶表面上开口的凹槽的封装层; 由非磁性金属材料制成的非磁性金属层，设置在所述封装层的顶表面上，并且具有与所述凹槽相邻的穿透开口; 以及由磁性金属材料制成并封装在封装层的凹槽中和非磁性金属层的开口中的极层。 极层具有位于介质面对表面中的端面，端面具有第一部分和第二部分，其位于比第一部分更远离基板并且连接到第一部分。 第一部分具有随着距离衬底的距离减小而减小的宽度。 第二部分具有定义轨道宽度的均匀宽度。 在面向介质的表面中，非磁性金属层存在于第二部分的两侧，侧面在轨道宽度方向上彼此相对。

公开(公告)号：US07719413B2

公开(公告)日：2010-05-18

申请号：US11999459

申请日：2007-12-05

申请人： Yukihiro Saitoh ,  Hiroyuki Itoh

发明人： Yukihiro Saitoh ,  Hiroyuki Itoh

IPC分类号： B60Q1/00

CPC分类号： B60R22/48 ,  B60R21/01516 ,  B60R2022/4816 ,  B60R2022/4858 ,  B60R2022/4866

摘要： An occupant detection system includes occupant sensors on each of plural seats, first resistors in connection to each of the occupant sensors with different resistance values, a power supply line that supplies electric power to the sensors and resistors from a power source by connecting those parts and the power source, and a control unit that detects occupancy of each of the plural seats based on an electric current value of the power supply line. The occupant detection system having the above configuration detects the occupancy of each of the plural seats without increasing the number of input terminals on the control unit.

摘要翻译： 乘员检测系统包括多个座中的每一个上的乘员传感器，连接到具有不同电阻值的每个乘员传感器的第一电阻器，通过连接那些部件而从电源向传感器和电阻器供电的电源线，以及 电源，以及基于电源线的电流值检测多个座位中的每一个的占有率的控制单元。 具有上述结构的乘员检测系统在不增加控制单元上的输入端子数量的情况下检测多个座位的占用。

公开(公告)号：US07656612B2

公开(公告)日：2010-02-02

申请号：US11443048

申请日：2006-05-31

申请人： Yoshitaka Sasaki ,  Kazuo Ishizaki ,  Hiroyuki Itoh

发明人： Yoshitaka Sasaki ,  Kazuo Ishizaki ,  Hiroyuki Itoh

IPC分类号： G11B5/127

CPC分类号： G01R33/093 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/3967 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： The system includes a magnetic head which faces a recording medium. The magnetic head has a coil which generates magnetic fields. The magnetic head also has a pole layer which is formed using a pattern. The pole layer allows magnetic flux generated by the coil to write data onto the recording medium. The pole layer generates a write magnetic field for writing data onto the recording medium.A photomask is used to form the magnetic head. The photomask includes three regions. The first region has such a perimeter that a projection image thereof is shaped along a perimeter of an ideal shape of the top surface of the pole layer, and the second region touches the first region's perimeter. The third region suppresses deviation of the pole layer from its desired shape which may be caused by the effect of light reflected while the photoresist layer is exposed.

摘要翻译： 该系统包括面向记录介质的磁头。 磁头具有产生磁场的线圈。 磁头还具有使用图案形成的极层。 极层允许由线圈产生的磁通量将数据写入记录介质。 极层产生用于将数据写入记录介质的写磁场。 光掩模用于形成磁头。 光掩模包括三个区域。 第一区域具有这样的周边，使得其投影图像沿着极层顶表面的理想形状的周边成形，并且第二区域接触第一区域的周边。 第三区域抑制极性层与其期望形状的偏差，这可能是由光致抗蚀剂层暴露时反射的光的影响引起的。

公开(公告)号：US20090277870A1

公开(公告)日：2009-11-12

申请号：US12149987

申请日：2008-05-12

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

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

IPC分类号： B44C1/22

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

摘要： A magnetic head includes a pole layer, and an encasing layer having a groove that accommodates the pole layer. A manufacturing method for the magnetic head includes the steps of forming a nonmagnetic layer that will later undergo formation of the groove therein and will thereby become the encasing layer; forming the groove in the nonmagnetic layer so that the nonmagnetic layer becomes the encasing layer; and forming the pole layer such that the pole layer is accommodated in the groove of the encasing layer. The nonmagnetic layer is formed of Al2O3. The step of forming the groove in the nonmagnetic layer includes the step of taper-etching the nonmagnetic layer by reactive ion etching with an etching gas containing at least BCl3 and N2 among BCl3, Cl2 and N2.

摘要翻译： 磁头包括极层和具有容纳极层的凹槽的封装层。 磁头的制造方法包括以下步骤：形成将在其中形成凹槽的非磁性层，从而成为包层; 在非磁性层中形成凹槽，使得非磁性层成为包层; 以及形成所述极层，使得所述极层容纳在所述封装层的槽中。 非磁性层由Al2O3形成。 在非磁性层中形成槽的步骤包括通过在BCl 3，Cl 2和N 2中至少含有BCl 3和N 2的蚀刻气体的反应离子蚀刻来对非磁性层进行锥蚀刻的步骤。

公开(公告)号：US07609479B2

公开(公告)日：2009-10-27

申请号：US11372259

申请日：2006-03-10

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Joseph Smyth ,  Lijie Guan ,  Yaw-Shing Tang

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Joseph Smyth ,  Lijie Guan ,  Yaw-Shing Tang

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/112 ,  G11B5/3163

摘要： A pole layer has an end face located in a medium facing surface, allows a magnetic flux corresponding to a magnetic field generated by a coil to pass therethrough, and generates a write magnetic field for writing data on a recording medium by using a perpendicular magnetic recording system. A shield incorporates: a first layer having an end face located in a region of the medium facing surface forward of the end face of the pole layer along the direction of travel of the recording medium; a second layer disposed in a region sandwiching the pole layer with the first layer; a first coupling portion coupling the first layer to the second layer without touching the pole layer; and a second coupling portion coupling the pole layer to the second layer and located farther from the medium facing surface than the first coupling portion.

摘要翻译： 极层具有位于介质相对表面中的端面，允许对应于由线圈产生的磁场的磁通量通过其中，并且通过使用垂直磁记录产生用于将数据写入记录介质的写入磁场 系统。 屏蔽包括：第一层，其具有沿着记录介质的行进方向位于所述极层的端面的前面的介质面向表面的区域中的端面; 第二层，设置在将所述极层与所述第一层夹在中间的区域中; 第一耦合部分，其将所述第一层耦合到所述第二层，而不接触所述极层; 以及第二耦合部分，其将所述极层耦合到所述第二层并且位于比所述第一耦合部更远离所述介质面对表面。

公开(公告)号：US07549216B2

公开(公告)日：2009-06-23

申请号：US11377267

申请日：2006-03-17

申请人： Yoshitaka Sasaki ,  Takehiro Kamigama ,  Hiroyuki Itoh

发明人： Yoshitaka Sasaki ,  Takehiro Kamigama ,  Hiroyuki Itoh

IPC分类号： G11B5/17

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 a method for manufacturing a thin film magnetic head comprising forming a first coil, a first pole piece and a first back gap piece on a first insulating film formed on a surface of a first magnetic film, so that the first coil, the first pole piece and the first back gap piece have a taper angle making a sectional shape wider in a lower part and narrower in an upper part; forming a second insulating film on surfaces of the first coil, the first pole piece and the first back gap piece; forming a first seed film on the second insulating film; growing a first plating film for a second coil on the first seed film in an area where the second coil is to be formed, so that the first plating film fills up spaces between the first pole piece and an outermost coil turn of the first coil, between coil turns of the first coil, and between an innermost coil turn of the first coil and the first back gap piece; and flattening the first plating film by polishing, so that to obtain a pattern of the second coil.

摘要翻译： 本发明涉及一种制造薄膜磁头的方法，包括在形成在第一磁性膜的表面上的第一绝缘膜上形成第一线圈，第一极片和第一后隙片，使得第一线圈 所述第一极靴和所述第一后部间隔件具有锥形角度，使下部形成较宽的截面形状，并且在上部较窄; 在第一线圈，第一极靴和第一后隙片的表面上形成第二绝缘膜; 在所述第二绝缘膜上形成第一种子膜; 在要形成第二线圈的区域中，在第一种子膜上生长用于第二线圈的第一镀膜，使得第一镀膜填充第一线圈和第一线圈的最外侧线圈圈之间的空间， 在第一线圈的线圈匝之间以及第一线圈的最内侧的线圈匝与第一后部间隙片之间; 并通过研磨来平坦化第一镀膜，从而获得第二线圈的图案。

公开(公告)号：US07518824B2

公开(公告)日：2009-04-14

申请号：US11213863

申请日：2005-08-30

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

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

IPC分类号： G11B5/147 ,  G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A magnetic head includes an encasing layer made of a nonmagnetic material and having a groove that opens in the top surface; a nonmagnetic metal layer made of a nonmagnetic metal material, disposed on the top surface of the encasing layer, and having a penetrating opening that is contiguous to the groove; and a pole layer made of a magnetic metal material and encased in the groove of the encasing layer and in the opening of the nonmagnetic metal layer. The pole layer has an end face located in a medium facing surface, the end face having a first portion and a second portion that is located farther from a substrate than the first portion and connected to the first portion. The first portion has a width that decreases as the distance from the substrate decreases. The second portion has a uniform width that defines the track width. In the medium facing surface, the nonmagnetic metal layer exists on both sides of the second portion, the sides being opposed to each other in the direction of track width.

摘要翻译： 磁头包括由非磁性材料制成并具有在顶表面上开口的凹槽的封装层; 由非磁性金属材料制成的非磁性金属层，设置在所述封装层的顶表面上，并且具有与所述凹槽相邻的穿透开口; 以及由磁性金属材料制成并封装在封装层的凹槽中和非磁性金属层的开口中的极层。 极层具有位于介质面对表面中的端面，端面具有第一部分和第二部分，其位于比第一部分更远离基板并且连接到第一部分。 第一部分具有随着距离衬底的距离减小而减小的宽度。 第二部分具有定义轨道宽度的均匀宽度。 在面向介质的表面中，非磁性金属层存在于第二部分的两侧，侧面在轨道宽度方向上彼此相对。

公开(公告)号：US20090045162A1

公开(公告)日：2009-02-19

申请号：US12252411

申请日：2008-10-16

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： G11B5/33 ,  B05D5/12

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。