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1. 发明授权

US07359146B2 Perpendicular magnetic recording element having stacked FM and AFM films applying magnetic bias along easy axis of soft magnetic film 有权
标题翻译：具有堆叠的FM和AFM膜的垂直磁记录元件沿着软磁膜的易轴施加磁偏置
公开(公告)号：US07359146B2
公开(公告)日：2008-04-15
申请号：US10891182
申请日：2004-07-15
申请人： Kei Hirata , Kiyoshi Noguchi , Tetsuya Mino , Tetsuya Roppongi
发明人： Kei Hirata , Kiyoshi Noguchi , Tetsuya Mino , Tetsuya Roppongi
IPC分类号： G11B5/127
CPC分类号： G11B5/127
摘要： The soft magnetic film takes its hard axis along the direction in which a magnetic field is generated and its easy axis along a direction perpendicular to the direction of the writer magnetic field. The magnetic bias film applies a magnetic bias along the easy axis to the soft magnetic film.
摘要翻译：软磁性膜沿其沿着写入磁场方向垂直的方向沿其产生磁场的方向和其容易的轴取其硬轴。磁偏置膜沿着容易的轴向磁性膜施加磁偏置。

2. 发明申请

US20050013044A1 Perpendicular magnetic recording element, magnetic head, magnetic head device and magnetic recording/reproducing apparatus 有权
标题翻译：垂直磁记录元件，磁头，磁头装置和磁记录/重放装置
公开(公告)号：US20050013044A1
公开(公告)日：2005-01-20
申请号：US10891182
申请日：2004-07-15
申请人： Kei Hirata , Kiyoshi Noguchi , Tetsuya Mino , Tetsuya Roppongi
发明人： Kei Hirata , Kiyoshi Noguchi , Tetsuya Mino , Tetsuya Roppongi
IPC分类号： G11B5/31 , G11B5/127
CPC分类号： G11B5/127
摘要： The soft magnetic film takes its hard axis along the direction in which a magnetic field is generated and its easy axis along a direction perpendicular to the direction of the writer magnetic field. The magnetic bias film applies a magnetic bias along the easy axis to the soft magnetic film.
摘要翻译：软磁性膜沿其沿着写入磁场方向垂直的方向沿其产生磁场的方向和其容易的轴取其硬轴。磁偏置膜沿着容易的轴向磁性膜施加磁偏置。

3. 发明申请

US20070279803A1 THIN-FILM MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY, AND HARD DISK SYSTEM 有权
标题翻译：薄膜磁头，头盖组件和硬盘系统
公开(公告)号：US20070279803A1
公开(公告)日：2007-12-06
申请号：US11756134
申请日：2007-05-31
申请人： Kei Hirata , Tetsuya Roppongi , Kiyoshi Noguchi
发明人： Kei Hirata , Tetsuya Roppongi , Kiyoshi Noguchi
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , B82Y10/00 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/743
摘要： The invention provides a thin-film magnetic head wherein the combined release angle Φ for a dominant recording magnetic field generated from a magnetic pole layer toward a patterned media for the purpose of recording magnetic information is set to within an angle range of 35° to 65° with respect to a patterned media surface. It is thus possible to invert, with efficiency and reliability, the directions of magnetization of isolate bits lined up on the patterned media for high-density recording.
摘要翻译：本发明提供了一种薄膜磁头，其中用于记录磁信息的从磁极层向图案化介质产生的主要记录磁场的组合释放角Phi设定在35°至65°的角度范围内 °相对于图案化介质表面。因此，可以以效率和可靠性反转排列在图案化介质上的高密度记录的隔离位的磁化方向。

4. 发明授权

US07463449B2 Magnetic head for perpendicular magnetic recording, head gimbal assembly, head arm assembly and magnetic disk drive 有权
标题翻译：用于垂直磁记录的磁头，磁头万向架组件，磁头臂组件和磁盘驱动器
公开(公告)号：US07463449B2
公开(公告)日：2008-12-09
申请号：US11266289
申请日：2005-11-04
申请人： Kei Hirata , Atsushi Yamaguchi , Tetsuya Roppongi , Kiyoshi Noguchi
发明人： Kei Hirata , Atsushi Yamaguchi , Tetsuya Roppongi , Kiyoshi Noguchi
IPC分类号： G11B5/31 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/3113 , G11B5/3116
摘要： A pole layer incorporate a track width defining and a wide portion. A material forming the pole layer is an alloy whose major elements are iron and nickel. In the alloy, where the proportions of iron and nickel with respect to the total of iron and nickel are indicated as (100−M) weight % and M weight %, respectively, M is greater than 0 and smaller than or equal to 10. The internal stress of the pole layer is a tensile stress. The magnetostriction constant of the material forming the pole layer is positive. Where the anisotropy field of the pole layer is Hk (A/m), the magnetostriction constant of the material forming the pole layer is λ(×10−6), and the internal stress of the pole layer is σ (MPa), the value of Hk/(λ×σ) is greater than 0.01 and smaller than 0.2.
摘要翻译：极层包含限定的轨道宽度和宽的部分。形成极层的材料是其主要元素是铁和镍的合金。在合金中，铁和镍相对于铁和镍总量的比例分别表示为（100-M）重量％和M重量％，M大于0且小于或等于10。极层的内应力是拉伸应力。形成极层的材料的磁致伸缩常数为正。在极层的各向异性场为Hk（A / m）的情况下，形成极层的材料的磁致伸缩常数为λ（x10-6），极层的内应力为σ（MPa）的Hk /（lambdaxsigma）大于0.01且小于0.2。

5. 发明授权

US07872831B2 Thin-film magnetic head having a recording head portion configured to record magnetic information on a patterned media, head gimbal assembly, and hard disk system 有权
标题翻译：具有记录头部分的薄膜磁头被配置为在图案化介质，磁头万向节组件和硬盘系统上记录磁信息
公开(公告)号：US07872831B2
公开(公告)日：2011-01-18
申请号：US11756134
申请日：2007-05-31
申请人： Kei Hirata , Tetsuya Roppongi , Kiyoshi Noguchi
发明人： Kei Hirata , Tetsuya Roppongi , Kiyoshi Noguchi
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , B82Y10/00 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/743
摘要： The invention provides a thin-film magnetic head wherein the combined release angle Φ for a dominant recording magnetic field generated from a magnetic pole layer toward a patterned media for the purpose of recording magnetic information is set to within an angle range of 35° to 65° with respect to a patterned media surface. It is thus possible to invert, with efficiency and reliability, the directions of magnetization of isolate bits lined up on the patterned media for high-density recording.
摘要翻译：本发明提供了一种薄膜磁头，其中用于记录磁信息的从磁极层向图案化介质产生的主要记录磁场的组合释放角Φ设定在35°至65°的角度范围内 °相对于图案化介质表面。因此，可以以效率和可靠性反转排列在图案化介质上的高密度记录的隔离位的磁化方向。

6. 发明授权

US07312951B2 Magnetic head for perpendicular magnetic recording 有权
标题翻译：用于垂直磁记录的磁头
公开(公告)号：US07312951B2
公开(公告)日：2007-12-25
申请号：US11038390
申请日：2005-01-21
申请人： Kei Hirata , Kiyoshi Noguchi , Tetsuya Roppongi , Atsushi Yamaguchi
发明人： Kei Hirata , Kiyoshi Noguchi , Tetsuya Roppongi , Atsushi Yamaguchi
IPC分类号： G11B5/127 , G11B5/147 , G11B5/133 , G11B5/33
CPC分类号： G11B5/1278 , Y10T428/115 , Y10T428/1186
摘要： The invention provides a magnetic head for perpendicular magnetic recording having an air bearing surface positioned facing the recording surface of a recording medium, which records magnetic information on the recording medium by generating magnetic flux toward the recording surface of the recording medium, and comprises a magnetic pole which generates magnetic flux toward the recording surface of the recording medium and a return yoke having one end connected to the magnetic pole and the other end positioned facing the recording surface of the recording medium, wherein the material composing the magnetic pole has a magnetostriction constant λ of at least 0 and less than 10×10−6, with a parameter P represented by the formula: P=Hk/(λ×σ) (where Hk represents the magnetic anisotropic field (A/m), σ represents the stress (MPa) and λ represents the magnetostriction constant) of larger than 0.1 and less than 200.
摘要翻译：本发明提供了一种用于垂直磁记录的磁头，其具有面向记录介质的记录表面的空气轴承表面，其通过向记录介质的记录表面产生磁通量而将磁信息记录在记录介质上，并且包括磁向记录介质的记录表面产生磁通的磁极和一个与磁极相连的一端的返回磁轭和面对记录介质的记录表面的另一端，其中构成磁极的材料具有磁致伸缩常数 λ至少为0且小于10×10 -6，具有由以下公式表示的参数P：P = Hk /（lambdaxsigma）（其中Hk表示磁各向异性场（A / m），σ 表示应力（MPa），λ表示磁致伸缩常数）大于0.1且小于200。

7. 发明申请

US20060098335A1 Magnetic head for perpendicular magnetic recording, head gimbal assembly, head arm assembly and magnetic disk drive 有权
标题翻译：用于垂直磁记录的磁头，磁头万向架组件，磁头臂组件和磁盘驱动器
公开(公告)号：US20060098335A1
公开(公告)日：2006-05-11
申请号：US11266289
申请日：2005-11-04
申请人： Kei Hirata , Atsushi Yamaguchi , Tetsuya Roppongi , Kiyoshi Noguchi
发明人： Kei Hirata , Atsushi Yamaguchi , Tetsuya Roppongi , Kiyoshi Noguchi
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3113 , G11B5/3116
摘要： A pole layer incorporate a track width defining and a wide portion. A material forming the pole layer is an alloy whose major elements are iron and nickel. In the alloy, where the proportions of iron and nickel with respect to the total of iron and nickel are indicated as (100-M) weight % and M weight %, respectively, M is greater than 0 and smaller than or equal to 10. The internal stress of the pole layer is a tensile stress. The magnetostriction constant of the material forming the pole layer is positive. Where the anisotropy field of the pole layer is Hk (A/m), the magnetostriction constant of the material forming the pole layer is λ(×10−6), and the internal stress of the pole layer is σ (MPa), the value of Hk/(λ×σ) is greater than 0.01 and smaller than 0.2.
摘要翻译：极层包含限定的轨道宽度和宽的部分。形成极层的材料是其主要元素是铁和镍的合金。在合金中，铁和镍相对于铁和镍总量的比例分别表示为（100-M）重量％和M重量％，M大于0且小于或等于10。极层的内应力是拉伸应力。形成极层的材料的磁致伸缩常数为正。在极层的各向异性场为Hk（A / m）的情况下，形成极层的材料的磁致伸缩常数为λ（×10 -6 -6），极层的内应力为 sigma（MPa），Hk /（lambdaxsigma）的值大于0.01且小于0.2。

8. 发明申请

US20050286170A1 Magnetic head for perpendicular magnetic recording 有权
标题翻译：用于垂直磁记录的磁头
公开(公告)号：US20050286170A1
公开(公告)日：2005-12-29
申请号：US11038390
申请日：2005-01-21
申请人： Kei Hirata , Kiyoshi Noguchi , Tetsuya Roppongi , Atsushi Yamaguchi
发明人： Kei Hirata , Kiyoshi Noguchi , Tetsuya Roppongi , Atsushi Yamaguchi
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , Y10T428/115 , Y10T428/1186
摘要： The invention provides a magnetic head for perpendicular magnetic recording having an air bearing surface positioned facing the recording surface of a recording medium, which records magnetic information on the recording medium by generating magnetic flux toward the recording surface of the recording medium, and comprises a magnetic pole which generates magnetic flux toward the recording surface of the recording medium and a return yoke having one end connected to the magnetic pole and the other end positioned facing the recording surface of the recording medium, wherein the material composing the magnetic pole has a magnetostriction constant λ of at least 0 and less than 10×10−6, with a parameter P represented by the formula: P=Hk/(λ×σ) (where Hk represents the magnetic anisotropic field (A/m), σ represents the stress (MPa) and λ represents the magnetostriction constant) of larger than 0.1 and less than 200.
摘要翻译：本发明提供了一种用于垂直磁记录的磁头，其具有面向记录介质的记录表面的空气轴承表面，其通过向记录介质的记录表面产生磁通量而将磁信息记录在记录介质上，并且包括磁向记录介质的记录表面产生磁通的磁极和一个与磁极相连的一端的返回磁轭和面对记录介质的记录表面的另一端，其中构成磁极的材料具有磁致伸缩常数 λ至少为0且小于10×10 -6，具有由以下公式表示的参数P：P = Hk /（lambdaxsigma）（其中Hk表示磁各向异性场（A / m），σ 表示应力（MPa），λ表示磁致伸缩常数）大于0.1且小于200。

9. 发明授权

US08964514B2 Plasmon generator and thermally-assisted magnetic recording head having the same 有权
标题翻译：等离子体发生器和具有相同功能的热辅助磁记录头
公开(公告)号：US08964514B2
公开(公告)日：2015-02-24
申请号：US13568542
申请日：2012-08-07
申请人： Kei Hirata , Ryo Hosoi , Keita Kawamori , Tetsuya Roppongi
发明人： Kei Hirata , Ryo Hosoi , Keita Kawamori , Tetsuya Roppongi
IPC分类号： G11B11/24 , G11B13/08 , G11B5/31 , G02B5/00 , G02B6/122
CPC分类号： G11B13/08 , G02B5/008 , G02B6/1226 , G11B5/3133 , G11B5/314 , G11B5/6088 , G11B2005/0021 , Y10T428/1171 , Y10T428/1193
摘要： A plasmon-generator of the invention is configured to include a first configuration member including a near-field light generating end surface; and a second configuration member joined and integrated with the first configuration member and not including the near-field light generating end surface. The first configuration member is configured to contain Au as a primary component and to contain any one or more elements selected from a group of Co, Fe, Sb, Nb, Zr, Ti, Hf, and Ta, and is configured so that a content percentage X1 of the contained element is within a range between 0.2 at % or more and 2.0 at % or less. Thereby, thermostability, optical characteristic, and the process stability are satisfied. Also, heat dissipation and heat generation suppression effect are extremely superior.
摘要翻译：本发明的等离子体发生器被构造成包括包括近场光产生端面的第一配置构件; 以及第二构造构件，其与所述第一构造构件接合并且一体化，并且不包括所述近场光产生端面。第一配置构件被配置为包含Au作为主要成分并且包含选自Co，Fe，Sb，Nb，Zr，Ti，Hf和Ta中的任何一种或多种元素，并且被配置为使得含量所含有的元素的X1的比例在0.2at％以上且2.0at％以下的范围内。由此，满足热稳定性，光学特性和工艺稳定性。此外，散热和发热抑制效果非常优异。

10. 发明授权

US08605387B2 Thermally-assisted magnetic recording head including a magnetic pole and a heating element 有权
标题翻译：包括磁极和加热元件的热辅助磁记录头
公开(公告)号：US08605387B2
公开(公告)日：2013-12-10
申请号：US13412109
申请日：2012-03-05
申请人： Kei Hirata , Kosuke Tanaka , Tetsuya Roppongi
发明人： Kei Hirata , Kosuke Tanaka , Tetsuya Roppongi
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021 , Y10T428/11
摘要： A thermally-assisted magnetic recording head includes a magnetic pole and a heating element. The magnetic pole has a front end face located in a medium facing surface. The magnetic pole forms on a track a distribution of write magnetic field strength that peaks at a first position on the track. The heating element forms on the track a distribution of temperature that peaks at a second position on the track. The first position is located on the trailing side relative to the second position. The front end face of the magnetic pole has a main portion and first and second extended portions. The first and second extended portions are extended in the track width direction from the main portion at positions on the leading side relative to the center of the main portion in the direction of travel of a magnetic recording medium.
摘要翻译：热辅助磁记录头包括磁极和加热元件。磁极具有位于介质相对表面中的前端面。磁道在轨道上形成写入磁场强度的分布，其在轨道上的第一位置处达到峰值。加热元件在轨道上形成在轨道上的第二位置处峰值的温度分布。第一位置位于相对于第二位置的后侧。磁极的前端面具有主要部分和第一和第二延伸部分。第一延伸部分和第二延伸部分在磁记录介质的行进方向上相对于主要部分的中心在前侧的位置处从主要部分在轨道宽度方向上延伸。

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