公开(公告)号：US08467147B2

公开(公告)日：2013-06-18

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：US20120210566A1

公开(公告)日：2012-08-23

申请号：US13440467

申请日：2012-04-05

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

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

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3123 ,  G11B5/313 ,  G11B5/3163 ,  H01L21/67069 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/4906 ,  Y10T29/49066 ,  Y10T428/115

摘要： A method of manufacturing a magnetic head includes the steps of: forming a pole-layer-encasing layer having a pole-layer-encasing section; and forming a pole layer in the pole-layer-encasing section. The pole layer includes a first layer, and a second layer formed thereon. The step of forming the pole layer includes the steps of: forming an initial first layer by physical vapor deposition; etching the surface of the initial first layer by dry etching so that the initial first layer becomes the first layer; and forming the second layer on the first layer.

摘要翻译： 一种制造磁头的方法包括以下步骤：形成具有极层包围部分的极层包裹层; 以及在极层封装部中形成极层。 极层包括第一层和形成在其上的第二层。 形成极层的步骤包括以下步骤：通过物理气相沉积形成初始第一层; 通过干蚀刻蚀刻初始第一层的表面，使得初始第一层成为第一层; 以及在所述第一层上形成所述第二层。

公开(公告)号：US07933095B2

公开(公告)日：2011-04-26

申请号：US11987786

申请日：2007-12-04

申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Takehiro Horinaka ,  Kowang Liu ,  Erhard Schreck

发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Takehiro Horinaka ,  Kowang Liu ,  Erhard Schreck

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/112 ,  G11B5/3116 ,  G11B5/3136 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

摘要： A magnetic head includes a pole layer and a shield. The shield includes a shield layer having a front end face located in the medium facing surface at a position forward of an end face of the pole layer along a direction of travel of the recording medium. The magnetic head further includes a stopper layer for suppressing protrusion of the front end face of the shield layer, the stopper layer being disposed adjacent to the shield layer and made of a nonmagnetic material having a linear thermal expansion coefficient of 5×10−6/° C. or smaller at a temperature of 25° C. to 100° C.

摘要翻译： 磁头包括极层和屏蔽。 屏蔽层包括屏蔽层，该屏蔽层具有前端面，该前端面沿着记录介质的行进方向位于磁极层的端面的前方的位置处于介质相对表面。 磁头还包括用于抑制屏蔽层的前端面的突出的阻挡层，该阻挡层与屏蔽层相邻设置，并且由线性热膨胀系数为5×10 -6 / 在25℃至100℃的温度下，

公开(公告)号：US07924528B2

公开(公告)日：2011-04-12

申请号：US11896705

申请日：2007-09-05

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： G11B5/31

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49046

摘要： A top surface of a pole layer of a magnetic head 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 distance from a substrate to an arbitrary point on the first portion increases with increasing distance from the medium facing surface to the arbitrary point. The angle of inclination of the first portion taken at the arbitrary point with respect to a direction perpendicular to the medium facing surface increases stepwise or continuously with increasing distance from the medium facing surface to the arbitrary point. The angle of inclination taken at the first edge is greater than zero degree. The second portion extends in a direction substantially perpendicular to the medium facing surface.

摘要翻译： 磁头的极层的顶表面包括：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。 从基板到第一部分的任意点的距离随着从介质面向表面到任意点的距离的增加而增加。 相对于与面向介质的表面垂直的任意点处的第一部分的倾斜角度随着从介质面向表面到任意点的距离的增加而逐步或连续地增加。 在第一边缘处采取的倾斜角大于零度。 第二部分在基本上垂直于介质面向表面的方向上延伸。

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。