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1. 发明申请

US20100157476A1 PERPENDICULAR MAGNETIC RECORDING HEAD 有权
标题翻译：全能磁记录头
公开(公告)号：US20100157476A1
公开(公告)日：2010-06-24
申请号：US12638911
申请日：2009-12-15
申请人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Tetsuya Okai , Gen Oikawa , Shouji Tokutake
发明人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Tetsuya Okai , Gen Oikawa , Shouji Tokutake
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3116
摘要： A perpendicular magnetic recording head according to one embodiment includes a main pole; first magnetic films arranged on both sides of the main pole in a track width direction via nonmagnetic films; and a second magnetic film arranged on a trailing side of the main pole via a nonmagnetic film; wherein the depths of the first magnetic films from an air bearing surface are smaller than the depth of the second magnetic film from the air bearing surface at least at a periphery of the main pole. A perpendicular magnetic recording head according to another embodiment includes a main pole; first magnetic films arranged on both sides of the main pole in a track width direction via nonmagnetic films; and a second magnetic film arranged on a trailing side of the main pole via a nonmagnetic film; wherein the main pole and the first magnetic films have respective tapered portions whose thicknesses become larger toward the side opposite to an air bearing surface, and the tapered portions are in contact with the second magnetic film. Additional embodiments are also presented.
摘要翻译：根据一个实施例的垂直磁记录头包括主极; 通过非磁性膜在磁道宽度方向上布置在主极两侧的第一磁膜; 以及通过非磁性膜布置在所述主极的后侧的第二磁性膜; 其中来自空气支承表面的第一磁性膜的深度至少在主极的周边处小于来自空气支承表面的第二磁性膜的深度。根据另一实施例的垂直磁记录头包括主极; 通过非磁性膜在磁道宽度方向上布置在主极两侧的第一磁膜; 以及通过非磁性膜布置在所述主极的后侧的第二磁性膜; 其中，所述主极和所述第一磁性膜具有各自的锥形部分，所述锥形部分的厚度朝着与空气支承表面相对的一侧变大，并且所述锥形部分与所述第二磁性膜接触。还提供了另外的实施例。

2. 发明授权

US08351156B2 Perpendicular magnetic recording head having a main pole and first and second magnetic films peripheral to the main pole and having different depths from an air bearing surface 有权
标题翻译：垂直磁记录头具有主极和在主极周围的第一和第二磁膜，并且具有与空气支承表面不同的深度
公开(公告)号：US08351156B2
公开(公告)日：2013-01-08
申请号：US12638911
申请日：2009-12-15
申请人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Tetsuya Okai , Gen Oikawa , Shouji Tokutake
发明人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Tetsuya Okai , Gen Oikawa , Shouji Tokutake
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/1278 , G11B5/3116
摘要： A perpendicular magnetic recording head according to one embodiment includes a main pole; first magnetic films arranged on both sides of the main pole in a track width direction via nonmagnetic films; and a second magnetic film arranged on a trailing side of the main pole via a nonmagnetic film; wherein the depths of the first magnetic films from an air bearing surface are smaller than the depth of the second magnetic film from the air bearing surface at least at a periphery of the main pole. A perpendicular magnetic recording head according to another embodiment includes a main pole; first magnetic films arranged on both sides of the main pole in a track width direction via nonmagnetic films; and a second magnetic film arranged on a trailing side of the main pole via a nonmagnetic film; wherein the main pole and the first magnetic films have respective tapered portions whose thicknesses become larger toward the side opposite to an air bearing surface, and the tapered portions are in contact with the second magnetic film. Additional embodiments are also presented.
摘要翻译：根据一个实施例的垂直磁记录头包括主极; 通过非磁性膜在磁道宽度方向上布置在主极两侧的第一磁膜; 以及通过非磁性膜布置在所述主极的后侧的第二磁性膜; 其中来自空气支承表面的第一磁性膜的深度至少在主极的周边处小于来自空气支承表面的第二磁性膜的深度。根据另一实施例的垂直磁记录头包括主极; 通过非磁性膜在磁道宽度方向上布置在主极两侧的第一磁膜; 以及通过非磁性膜布置在所述主极的后侧的第二磁性膜; 其中，所述主极和所述第一磁性膜具有各自的锥形部分，所述锥形部分的厚度朝着与空气支承表面相对的一侧变大，并且所述锥形部分与所述第二磁性膜接触。还提供了另外的实施例。

3. 发明申请

US20110141615A1 MAGNETIC HEAD FOR PERPENDICULAR RECORDING 有权
标题翻译：磁头记录
公开(公告)号：US20110141615A1
公开(公告)日：2011-06-16
申请号：US12965277
申请日：2010-12-10
申请人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
发明人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
IPC分类号： G11B21/02 , G11B5/33
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163 , G11B5/6005 , Y10T428/11 , Y10T428/1171
摘要： According to one embodiment, a magnetic head for perpendicular recording includes a main pole, a first soft magnetic film disposed on a trailing side of the main pole, and a first nonmagnetic film interposed between the main pole and the first soft magnetic film. A thickness of the main pole is increased in a depth direction from an air bearing surface using an inclination, and a thickness of the first nonmagnetic film increases in the depth direction from the air bearing surface. In another embodiment, an angle from a horizontal plane of an upper surface of the first nonmagnetic film is greater than an angle from a horizontal plane of a lower surface of the first nonmagnetic film in contact with the main pole. Other heads, methods, and systems are described according to more embodiments.
摘要翻译：根据一个实施例，用于垂直记录的磁头包括主极，设置在主极的后侧的第一软磁膜和插在主极和第一软磁膜之间的第一非磁性膜。主轴的厚度使用倾斜从空气轴承面在深度方向上增大，第一非磁性膜的厚度在空气轴承面的深度方向上增大。在另一个实施例中，与第一非磁性膜的上表面的水平面的角度大于与主极接触的第一非磁性膜的下表面的水平面的角度。根据更多实施例描述其它头，方法和系统。

4. 发明授权

US08537493B2 Magnetic head for perpendicular recording 有权
标题翻译：磁头用于垂直记录
公开(公告)号：US08537493B2
公开(公告)日：2013-09-17
申请号：US12965277
申请日：2010-12-10
申请人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
发明人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
IPC分类号： G11B5/23 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163 , G11B5/6005 , Y10T428/11 , Y10T428/1171
摘要： According to one embodiment, a magnetic head for perpendicular recording includes a main pole, a first soft magnetic film disposed on a trailing side of the main pole, and a first nonmagnetic film interposed between the main pole and the first soft magnetic film. A thickness of the main pole is increased in a depth direction from an air bearing surface using an inclination, and a thickness of the first nonmagnetic film increases in the depth direction from the air bearing surface. In another embodiment, an angle from a horizontal plane of an upper surface of the first nonmagnetic film is greater than an angle from a horizontal plane of a lower surface of the first nonmagnetic film in contact with the main pole. Other heads, methods, and systems are described according to more embodiments.
摘要翻译：根据一个实施例，用于垂直记录的磁头包括主极，设置在主极的后侧的第一软磁膜和插在主极和第一软磁膜之间的第一非磁性膜。主轴的厚度使用倾斜从空气轴承面在深度方向上增大，第一非磁性膜的厚度在空气轴承面的深度方向上增大。在另一个实施例中，与第一非磁性膜的上表面的水平面的角度大于与主极接触的第一非磁性膜的下表面的水平面的角度。根据更多实施例描述其它头，方法和系统。

5. 发明授权

US08189293B1 Perpendicular magnetic recording head having a grooved wrap around shield and method for manufacturing the same 有权
标题翻译：垂直磁记录头，其具有围绕屏蔽的沟槽环绕件及其制造方法
公开(公告)号：US08189293B1
公开(公告)日：2012-05-29
申请号：US13096775
申请日：2011-04-28
申请人： Yasuhiro Wakabayashi , Kazue Kudo , Shouji Tokutake , Hiromi Shiina , Yohji Maruyama
发明人： Yasuhiro Wakabayashi , Kazue Kudo , Shouji Tokutake , Hiromi Shiina , Yohji Maruyama
IPC分类号： G11B5/31
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315 , G11B5/3163
摘要： According to one embodiment, a perpendicular magnetic recording head includes a shield having a groove and a main magnetic pole positioned in the groove of the shield. The groove includes a bottom side near a leading edge of the shield and inclined sides extending from the bottom side toward a trailing edge of the shield and from an ABS side of the head to a recessed side of the shield opposite the ABS. The shield is coupled to a non-magnetic layer at the recessed side, a cross-sectional area of the groove is less at a position nearer to the substrate than a position farther from the substrate, a cross-sectional area of the groove is less at a position nearer to the ABS side of the shield than a position farther from the ABS side of the shield, and a portion of the sides of the groove have curved surfaces.
摘要翻译：根据一个实施例，垂直磁记录头包括具有凹槽和位于屏蔽的槽中的主磁极的屏蔽。凹槽包括靠近屏蔽件前缘的底侧和从屏蔽的底侧向后缘延伸的倾斜侧和从头部的ABS侧到与ABS相对的屏蔽件的凹入侧。屏蔽层在凹陷侧耦合到非磁性层，在远离基板的位置处，在较靠近基板的位置处的沟槽的横截面积较小，凹槽的横截面积较小在远离防护罩的ABS侧的位置更靠近防护罩的ABS侧的位置处，并且槽的一部分侧面具有曲面。

6. 发明申请

US20110002063A1 PERPENDICULAR MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING DEVICE SUITABLE FOR HIGH-DENSITY MAGNETIC RECORDING 有权
标题翻译：适用于高密度磁记录的全磁记录磁头和磁记录装置
公开(公告)号：US20110002063A1
公开(公告)日：2011-01-06
申请号：US12827999
申请日：2010-06-30
申请人： Yohji Maruyama , Tadayuki Iwakura , Tetsuya Okai , Hiromi Shiina , Kazue Kudo
发明人： Yohji Maruyama , Tadayuki Iwakura , Tetsuya Okai , Hiromi Shiina , Kazue Kudo
IPC分类号： G11B21/02 , G11B5/33
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole having a trailing side and two lateral sides, a magnetic shield near the trailing side and both lateral sides of the main magnetic pole, the magnetic shield comprising: a first soft magnetic film with a relatively high saturation flux density positioned facing depthwise from a floating surface side thereof, a second soft magnetic film with a relatively low saturation flux density, and a first non-magnetic film. The head also includes a non-magnetic film interposed between the magnetic shield and the main magnetic pole, a first magnetic film magnetically coupled to the magnetic shield and the main magnetic pole on a side opposite a floating surface side thereof, and a coil surrounding a magnetic circuit, the magnetic circuit comprising the main magnetic pole and the first magnetic film. Other systems and methods are also described.
摘要翻译：根据一个实施例，垂直磁记录头包括具有后侧和两个侧面的主磁极，靠近主磁极的后侧和两侧的磁屏蔽，磁屏蔽包括：第一软磁具有从其浮动表面侧朝向深度方向定位的相对较高的饱和磁通密度的膜，具有相对低的饱和磁通密度的第二软磁膜和第一非磁性膜。头部还包括插入在磁屏蔽和主磁极之间的非磁性膜，磁性地耦合到磁屏蔽的第一磁性膜和与其浮动表面侧相对的一侧的主磁极，以及围绕所述磁路包括所述主磁极和所述第一磁性膜。还描述了其它系统和方法。

7. 发明授权

US08542462B2 Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording 有权
标题翻译：具有从空气轴承表面凹陷的非磁性膜的垂直磁记录头用于改善高密度磁记录
公开(公告)号：US08542462B2
公开(公告)日：2013-09-24
申请号：US12827999
申请日：2010-06-30
申请人： Yohji Maruyama , Tadayuki Iwakura , Tetsuya Okai , Hiromi Shiina , Kazue Kudo
发明人： Yohji Maruyama , Tadayuki Iwakura , Tetsuya Okai , Hiromi Shiina , Kazue Kudo
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole having a trailing side and two lateral sides, a magnetic shield near the trailing side and both lateral sides of the main magnetic pole, the magnetic shield comprising: a first soft magnetic film with a relatively high saturation flux density positioned facing depthwise from a floating surface side thereof, a second soft magnetic film with a relatively low saturation flux density, and a first non-magnetic film. The head also includes a non-magnetic film interposed between the magnetic shield and the main magnetic pole, a first magnetic film magnetically coupled to the magnetic shield and the main magnetic pole on a side opposite a floating surface side thereof, and a coil surrounding a magnetic circuit, the magnetic circuit comprising the main magnetic pole and the first magnetic film. Other systems and methods are also described.
摘要翻译：根据一个实施例，垂直磁记录头包括具有后侧和两个侧面的主磁极，靠近主磁极的后侧和两侧的磁屏蔽，磁屏蔽包括：第一软磁具有从其浮动表面侧朝向深度方向定位的相对较高的饱和磁通密度的膜，具有相对低的饱和磁通密度的第二软磁膜和第一非磁性膜。头部还包括插入在磁屏蔽和主磁极之间的非磁性膜，磁性地耦合到磁屏蔽的第一磁性膜和与其浮动表面侧相对的一侧的主磁极，以及围绕所述磁路包括所述主磁极和所述第一磁性膜。还描述了其它系统和方法。

8. 发明授权

US08064161B2 Perpendicular magnetic recording head and method for manufacturing the same 有权
标题翻译：垂直磁记录头及其制造方法
公开(公告)号：US08064161B2
公开(公告)日：2011-11-22
申请号：US12231246
申请日：2008-08-28
申请人： Kazue Kudo , Hiromi Shiina , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki
发明人： Kazue Kudo , Hiromi Shiina , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki
IPC分类号： H04R31/00 , G11B5/147
CPC分类号： G11B5/3146 , G11B5/1278 , G11B5/315 , G11B5/3163 , Y10T29/49044 , Y10T29/4906
摘要： Embodiments of the present invention help to provide a perpendicular magnetic recording head capable of writing a signal in a track having a small width. According to one embodiment, a perpendicular magnetic recording head includes an auxiliary pole, a main pole, a yoke, a coil, a first soft magnetic film and a second soft magnetic film. The yoke is in contact with the main pole. The coil is wound around a magnetic circuit composed of the auxiliary and main poles and the yoke. The first soft magnetic film is provided on both sides of the main pole with a non-magnetic film provided between the first soft magnetic film and the main pole. The second soft magnetic film is provided on the trailing side of the main pole with the non-magnetic film provided between the second soft magnetic film and the main pole. The first and second soft magnetic films are two types of plated magnetic films. One type of the plated magnetic films have respective thicknesses of 0.5 nm to 20 nm and respective body centered cubic lattice crystal structures. The other types of the plated magnetic films have respective thicknesses of 0.5 nm to 20 nm and respective face centered cubic lattice crystal structures. The two types of the plated magnetic films are alternately laminated with four or more layers. This can achieve the magnetic disk drive capable of reducing a possibility to erroneously delete a signal after the signal being written and preventing degradation of characteristics of a high frequency signal.
摘要翻译：本发明的实施例有助于提供一种能够在具有小宽度的轨迹中写入信号的垂直磁记录头。根据一个实施例，垂直磁记录头包括辅助极，主极，磁轭，线圈，第一软磁膜和第二软磁膜。轭与主极接触。线圈缠绕在由辅助和主极和轭构成的磁路上。第一软磁膜设置在主极的两侧，设置在第一软磁膜和主极之间的非磁性膜。第二软磁膜设置在主极的后侧，设置在第二软磁膜和主极之间的非磁性膜。第一和第二软磁膜是两种类型的镀覆磁性膜。一种类型的电镀磁性膜具有0.5nm至20nm的各自的厚度和相应的体心立方晶格结构。其他类型的镀膜磁性膜具有0.5nm至20nm的各自的厚度和各自的面心立方晶格结构。两种类型的镀覆磁性膜交替地层压有四层或更多层。这可以实现能够降低信号被写入之后错误地删除信号的可能性的磁盘驱动器，并且防止高频信号的特性的劣化。

9. 发明申请

US20080075977A1 Magnetic film, manufacturing method thereof and thin film magnetic head 有权
标题翻译：磁膜，其制造方法和薄膜磁头
公开(公告)号：US20080075977A1
公开(公告)日：2008-03-27
申请号：US11820598
申请日：2007-06-19
申请人： Kazue Kudo , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki , Hiromi Shiina
发明人： Kazue Kudo , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki , Hiromi Shiina
IPC分类号： G11B5/33 , H04R31/00
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/147 , G11B5/313 , Y10T29/49032 , Y10T428/115
摘要： Embodiments of the present invention provide a magnetic disk drive capable of allowing higher data transfer rates and higher recording densities. According to one embodiment, an upper magnetic core and lower magnetic core comprise a multi-layered magnetic film formed by alternately stacking a face-centered cubic (fcc) crystalline magnetic thin layer and a body-centered cubic (bcc) crystalline magnetic thin layer by plating. The plating bath is such that the temperature is about 30±1° C., pH is about 2.0−1.0 to 2.0+0.5, metal ion concentrations are about 5 to 25 (g/l) for Ni2+ and 5 to 15 (g/l) for Fe2+, saccharin sodium concentration is about 1.5±1.0 (g/l), sodium chloride concentration is about 25±5 (g/l), and boric acid concentration is about 25±5 (g/l). Since each layer's crystal structure is different from that of its adjacent lower layer, epitaxial growth is broken within each layer. Thus, since crystal grains are reduced in size, it is possible to lessen the decrease of the permeability μ at higher frequencies.
摘要翻译：本发明的实施例提供一种能够允许更高数据传输速率和更高记录密度的磁盘驱动器。根据一个实施例，上磁芯和下磁芯包括通过交替地将面心立方（fcc）晶体磁性薄层和体心立方（bcc）结晶磁性薄层交替堆叠而形成的多层磁性膜，电镀。电镀浴温度为约30±1℃，pH为约2.0-1.0至2.0 + 0.5，Ni2 +和5至15（g / l）的金属离子浓度为约5至25（g / l） l）对于Fe2 +，糖精钠浓度约为1.5±1.0（g / l），氯化钠浓度约为25±5（g / l），硼酸浓度约为25±5（g / l）。由于每个层的晶体结构与其相邻的下层的晶体结构不同，所以在每个层内外延生长被破坏。因此，由于晶粒尺寸减小，因此能够降低高频率下的磁导率μμ的降低。

10. 发明授权

US07995311B2 Magnetic shield, manufacturing method thereof and thin film magnetic head employing the same 有权
标题翻译：磁屏蔽，其制造方法和使用该磁屏蔽的薄膜磁头
公开(公告)号：US07995311B2
公开(公告)日：2011-08-09
申请号：US11820554
申请日：2007-06-19
申请人： Kazue Kudo , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki , Hiromi Shiina
发明人： Kazue Kudo , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki , Hiromi Shiina
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3912 , G11B5/3967
摘要： Embodiments of the present invention provide a magnetic shield composed of size-controlled small crystal grains and provide a more after-write read noise free thin film magnetic head. According to one embodiment of the present invention, an upper magnetic shield uses a multi-layered magnetic film formed by alternately stacking a face-centered cubic (fcc) crystalline magnetic thin layer and a body-centered cubic (bcc) crystalline magnetic thin layer by plating. The plating bath is such that the temperature is 30±1° C., pH is about 2.0−1.0 to 2.0+0.5, metal ion concentrations are about 5 to 25 (g/l) for Ni2+ and 5 to 15 (g/l) for Fe2+, saccharin sodium concentration is about 1.5±1.0 (g/l), sodium chloride concentration is about 25±5 (g/l), and boric acid concentration is about 25±5 (g/l). Each layer's crystal structure is different from that of its upper and lower layers, which results in size-controlled small crystal grains since the epitaxial growth is broken. Since crystal grains are reduced in size, it is possible to suppress the after-write read noise and therefore attain a read head which allows recording at higher frequencies.
摘要翻译：本发明的实施例提供一种由尺寸控制的小晶粒组成的磁屏蔽，并提供更多的后写入无噪声薄膜磁头。根据本发明的一个实施例，上磁屏蔽使用通过交替层叠面心立方（fcc）结晶磁性薄膜和体心立方（bcc）结晶磁性薄膜而形成的多层磁性膜，电镀。电镀浴温度为30±1℃，pH为约2.0-1.0〜2.0 + 0.5，Ni2 +和5〜15（g / l）的金属离子浓度约为5〜25（g / l））对于Fe2 +，糖精钠浓度约为1.5±1.0（g / l），氯化钠浓度约为25±5（g / l），硼酸浓度约为25±5（g / l）。每层的晶体结构与其上层和下层的晶体结构不同，这导致尺寸控制的小晶粒，因为外延生长破裂。由于晶粒尺寸减小，因此可以抑制写入后的读取噪声，从而获得允许以较高频率记录的读取头。

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