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51. 发明授权

US07542233B2 Perpendicular magnetic recording element, thin film magnetic head, magnetic head device, and magnetic recording/reproducing apparatus for reducing deleterious effects of external magnetic fields 有权
标题翻译：垂直磁记录元件，薄膜磁头，磁头装置和用于减少外部磁场的有害影响的磁记录/再现装置
公开(公告)号：US07542233B2
公开(公告)日：2009-06-02
申请号：US11337659
申请日：2006-01-24
申请人： Kei Hirata , Takahiko Machita , Kiyoshi Noguchi
发明人： Kei Hirata , Takahiko Machita , Kiyoshi Noguchi
IPC分类号： G11B5/17
CPC分类号： G11B5/1278
摘要： A perpendicular magnetic recording element includes a recording magnetic pole film and a write shield film. The recording magnetic pole film has a yoke portion and a main magnetic pole for perpendicular recording. The main magnetic pole projects from a front end of the yoke portion to have an end on a medium-facing surface. The write shield film faces the recording magnetic pole film and has a height equal to or smaller than that of the recording magnetic pole film, as measured rearward from the medium-facing surface.
摘要翻译：垂直磁记录元件包括记录磁极膜和写保护膜。记录磁极膜具有用于垂直记录的磁轭部分和主磁极。主磁极从磁轭部的前端突出，以在中间面的表面上具有一端。写入屏蔽膜面向记录磁极膜，并且具有与记录磁极膜相同或更小的高度，从中间面向后测量。

52. 发明申请

US20080253027A1 MAGNETIC HEAD, HEAD ASSEMBLY AND MAGNETIC RECORDING / REPRODUCING APPARATUS 有权
标题翻译：磁头，头组件和磁记录/再现装置
公开(公告)号：US20080253027A1
公开(公告)日：2008-10-16
申请号：US11733469
申请日：2007-04-10
申请人： Atsushi Yamaguchi , Kiyoshi Noguchi , Shingo Miyata , Masashi Sano
发明人： Atsushi Yamaguchi , Kiyoshi Noguchi , Shingo Miyata , Masashi Sano
IPC分类号： G11B5/60 , G11B5/127 , G11B5/187
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3133 , G11B5/3163
摘要： The present invention relates to a perpendicular recording magnetic head. A perpendicular recording element includes a main magnetic pole film for emitting a perpendicular magnetic field and is supported by a slider. The main magnetic pole film includes an electrode film and a plated film, the electrode film is an alloy film of at least one element selected from the platinum group and Ni, and the plated film is a magnetic film grown on the electrode film.
摘要翻译：本发明涉及一种垂直记录磁头。垂直记录元件包括用于发射垂直磁场并由滑块支撑的主磁极膜。主磁极膜包括电极膜和电镀膜，电极膜是选自铂族和Ni中的至少一种元素的合金膜，电镀膜是在电极膜上生长的磁性膜。

53. 发明申请

US20070211391A1 CURRENT-PERPENDICULAR-TO-PLANE MAGNETO-RESISTIVE ELEMENT 有权
标题翻译：电流 - 平面电磁电阻元件
公开(公告)号：US20070211391A1
公开(公告)日：2007-09-13
申请号：US11616503
申请日：2006-12-27
申请人： Kei HIRATA , Koji Shimazawa , Atsushi Yamaguchi , Kiyoshi Noguchi
发明人： Kei HIRATA , Koji Shimazawa , Atsushi Yamaguchi , Kiyoshi Noguchi
IPC分类号： G11B5/33
CPC分类号： G11B5/3912
摘要： A current-perpendicular-to-plane magneto-resistive element includes a magneto-resistive film and a pair of upper and lower magnetic shielding films holding the magneto-resistive film therebetween for current feeding. The lower magnetic shielding film has an at least two-layer structure including a crystalline material layer and an amorphous material layer disposed below the crystalline material layer.
摘要翻译：电流 - 垂直于平面的磁阻元件包括磁阻膜和一对上下磁屏蔽膜，其在其间保持用于电流馈送的磁阻膜。下磁屏蔽膜具有至少两层结构，包括结晶材料层和设置在结晶材料层下方的无定形材料层。

54. 发明申请

US20070165330A1 Soft magnetic film and method of manufacturing same, thin-film magnetic head and method of manufacturing same, head arm assembly and magnetic disk drive 有权
标题翻译：软磁膜及其制造方法，薄膜磁头及其制造方法，头臂组件和磁盘驱动器
公开(公告)号：US20070165330A1
公开(公告)日：2007-07-19
申请号：US11647493
申请日：2006-12-29
申请人： Atsushi Yamaguchi , Kiyoshi Noguchi , Kei Hirata
发明人： Atsushi Yamaguchi , Kiyoshi Noguchi , Kei Hirata
IPC分类号： G11B5/147
CPC分类号： G11B5/3113 , G11B5/3163
摘要： A pole layer of a magnetic head incorporates a soft magnetic film made of an iron-cobalt-nickel-base alloy. When the total of the iron, cobalt and nickel contents of the soft magnetic film is assumed as 100 weight percent, the iron content of the soft magnetic film is within a range of 42 to 90 weight percent inclusive, the cobalt content thereof is within a range of 0 to 48 weight percent inclusive, and the nickel content thereof is within a range of 10 to 20 weight percent inclusive. The soft magnetic film has a crystal structure that is a mixed crystal of a body-centered cubic structure phase and a face-centered cubic structure phase. The soft magnetic film is manufactured by performing electroplating using a plating current whose direction is alternately switched.
摘要翻译：磁头的极层包含由铁 - 钴 - 镍基合金制成的软磁膜。当软磁性膜的铁，钴和镍含量的总和为100重量％时，软磁性膜的铁含量在42〜90重量％的范围内，其钴含量在范围为0〜48重量％，其含量在10〜20重量％的范围内。软磁性膜具有作为体心立方结构相和面心立方结构相的混晶的晶体结构。通过使用交替切换方向的电镀电流进行电镀来制造软磁性膜。

55. 发明申请

US20070139817A1 Magnetic head for perpendicular magnetic recording, head gimbal assembly, head arm assembly and magnetic disc 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：US20070139817A1
公开(公告)日：2007-06-21
申请号：US11591504
申请日：2006-11-02
申请人： Kei Hirata , Kiyoshi Noguchi
发明人： Kei Hirata , Kiyoshi Noguchi
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278
摘要： A magnetic head comprises: a medium facing surface; a coil for generating a magnetic field corresponding to data to be written on a recording medium; and a pole layer allowing a magnetic flux corresponding to the field generated by the coil to pass therethrough, and generating a write magnetic field for writing the data on the recording medium by means of a perpendicular magnetic recording system. The pole layer incorporates a track width defining portion and a wide portion. The track width defining portion has an end face that is located in the medium facing surface and that defines the track width. The maximum width of the wide portion is greater than the track width and equal to or greater than the length of the wide portion taken in the direction orthogonal to the medium facing surface. When the coil is generating no magnetic field, in the end face of the track width defining portion, there exist first and second regions in which the directions of components of magnetization orthogonal to the medium facing surface are opposite.
摘要翻译：磁头包括：面向介质的表面; 用于产生对应于要写入记录介质的数据的磁场的线圈; 以及允许对应于由线圈产生的磁场的磁通量通过的磁极层，并且通过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。极层包括轨道宽度限定部分和宽部分。轨道宽度限定部分具有位于介质面向表面中并限定轨道宽度的端面。宽部分的最大宽度大于轨道宽度，并且等于或大于在与面向介质的表面正交的方向上拍摄的宽部分的长度。当线圈不产生磁场时，在轨道宽度限定部分的端面中，存在第一和第二区域，其中与面向介质的表面正交的磁化分量的方向相反。

56. 发明申请

US20060262454A1 Thin film magnetic head, method of manufacturing the same, and magnetic recording apparatus 有权
标题翻译：薄膜磁头，其制造方法和磁记录装置
公开(公告)号：US20060262454A1
公开(公告)日：2006-11-23
申请号：US11410043
申请日：2006-04-25
申请人： Kei Hirata , Kiyoshi Noguchi , Atsushi Yamaguchi
发明人： Kei Hirata , Kiyoshi Noguchi , Atsushi Yamaguchi
IPC分类号： G11B5/147 , H04R31/00
CPC分类号： G11B5/3163 , G11B5/3143 , Y10T29/49021 , Y10T29/49048
摘要： The present invention provides a thin film magnetic head capable of satisfying both assurance of recording performance and assurance of reproduction performance. In the case where a lower magnetic layer is formed of an iron cobalt alloy (for example, Fe65Co35) which contains iron in a range of 60 at % to 80 at % and has extremely high saturation magnetic flux density of 2.4 T or higher, a head isolation layer formed of ruthenium (Ru) is provided between the lower magnetic layer and an upper read shield layer portion. As compared with the case where the head isolation layer is not provided between the lower magnetic layer and the upper read shield layer portion, the strength of a recording magnetic field increases and a reproduction output of an MR element is stabilized.
摘要翻译：本发明提供了能够满足记录性能的保证和再现性能的保证的薄膜磁头。在下面的磁性层由铁含量在60％至80％范围内的铁钴合金（例如，Fe 65 N 3+ 35）形成的情况下 at％，并且具有2.4T以上的极高饱和磁通密度，在下磁性层和上部读屏蔽层部分之间设置由钌（Ru）形成的磁头隔离层。与在下部磁性层和上部读取屏蔽层部分之间没有设置磁头隔离层的情况相比，记录磁场的强度增加，MR元件的再现输出稳定。

57. 发明授权

US06773515B2 FeTa nano-oxide layer as a capping layer for enhancement of giant magnetoresistance in bottom spin valve structures 失效
标题翻译： FeTa纳米氧化物层作为覆盖层，用于增强底部自旋阀结构中的巨磁阻
公开(公告)号：US06773515B2
公开(公告)日：2004-08-10
申请号：US10050644
申请日：2002-01-16
申请人： Min Li , Simon H. Liao , Masashi Sano , Kiyoshi Noguchi , Kochan Ju , Cheng T. Horng
发明人： Min Li , Simon H. Liao , Masashi Sano , Kiyoshi Noguchi , Kochan Ju , Cheng T. Horng
IPC分类号： C23C800
CPC分类号： C22C38/10 , B32B15/01 , B82Y10/00 , B82Y25/00 , B82Y40/00 , C22C38/12 , G01R33/093 , G11B5/3163 , G11B5/3903 , H01F10/3259 , H01F10/3272 , H01F41/302 , H01L43/08 , H01L43/12 , Y10T29/49034 , Y10T29/49044 , Y10T29/49046
摘要： A method for forming an NiCr seed layer based bottom spin valve sensor element having a synthetic antiferromagnet pinned (SyAP) layer and a capping layer comprising either a single specularly reflecting nano-oxide layer (NOL) or a bi-layer comprising a non-metallic layer and a specularly reflecting nano-oxide layer and the sensor element so formed. The method of producing these sensor elements provides elements having higher GMR ratios and lower resistances than elements of the prior art.
摘要翻译：一种用于形成具有合成反铁磁钉扎（SyAP）层的NiCr种子层底部自旋阀传感器元件的方法和包括单个镜面反射纳米氧化物层（NOL）或包含非金属的双层的双层的覆盖层层和镜面反射纳米氧化物层和如此形成的传感器元件。制造这些传感器元件的方法提供了具有比现有技术的元件更高的GMR比和较低电阻的元件。

58. 发明授权

US06581272B1 Method for forming a bottom spin valve magnetoresistive sensor element 失效
标题翻译：形成底部自旋阀磁阻传感器元件的方法
公开(公告)号：US06581272B1
公开(公告)日：2003-06-24
申请号：US10037812
申请日：2002-01-04
申请人： Min Li , Simon H. Liao , Masashi Sano , Kiyoshi Noguchi , Kochan Ju , Cheng T. Horng
发明人： Min Li , Simon H. Liao , Masashi Sano , Kiyoshi Noguchi , Kochan Ju , Cheng T. Horng
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3903 , Y10T29/49034 , Y10T29/49044 , Y10T29/49046
摘要： A method for forming a bottom spin valve sensor having a synthetic antiferromagnetic pinned (SyAP) layer, antiferromagnetically coupled to a pinning layer, in which one of the layers of the SyAP is formed as a three layer lamination that contains a specularly reflecting oxide layer of FeTaO. The sensor formed according to this method has an extremely high GMR ratio and exhibits good pinning strength.
摘要翻译：一种用于形成底部自旋阀传感器的方法，该底部自旋阀传感器具有反结合磁耦合到钉扎层的合成反铁磁钉扎（SyAP）层，其中SyAP的一个层形成为三层层压，其包含镜面反射氧化物层 FeTaO。根据该方法形成的传感器具有非常高的GMR比，并且具有良好的钉扎强度。

59. 发明授权

US5862022A Ferromagnetic tunnel junction, magnetoresistive element and magnetic head 失效
标题翻译：铁磁隧道结，磁阻元件和磁头
公开(公告)号：US5862022A
公开(公告)日：1999-01-19
申请号：US933347
申请日：1997-09-19
申请人： Kiyoshi Noguchi , Taro Oike , Satoru Araki , Manabu Ohta , Masashi Sano
发明人： Kiyoshi Noguchi , Taro Oike , Satoru Araki , Manabu Ohta , Masashi Sano
IPC分类号： G11B5/39 , H01L43/08 , G11C11/00 , H01L41/12
CPC分类号： G11B5/3967 , H01L43/08
摘要： This invention is directed to a ferromagnetic tunnel junction, an MR element and a magnetic head. A ferromagnetic tunnel junction is constituted by sequentially laminating a first ferromagnetic film, an insulating film and a second ferromagnetic film. These are laminated on an appropriate insulating substrate. The present invention is characterized in that the barrier potential of the insulating film is set within a range of 0.5 to 3 eV. A ferromagnetic tunnel junction with which a high MR ratio can be achieved with good reproduction characteristics is provided.
摘要翻译：本发明涉及铁磁隧道结，MR元件和磁头。铁磁隧道结由顺序层叠第一铁磁膜，绝缘膜和第二铁磁膜构成。这些层压在适当的绝缘基板上。本发明的特征在于，绝缘膜的阻挡电位设定在0.5〜3eV的范围内。提供了具有良好再生特性可实现高MR比的铁磁隧道结。

60. 发明授权

US4758471A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4758471A
公开(公告)日：1988-07-19
申请号：US877866
申请日：1986-06-24
申请人： Hiroyuki Arioka , Koji Kobayashi , Kiyoshi Noguchi
发明人： Hiroyuki Arioka , Koji Kobayashi , Kiyoshi Noguchi
IPC分类号： G11B5/66 , G11B5/64 , G11B5/72 , G11B5/725 , G11B5/73 , G11B5/702
CPC分类号： G11B5/725 , G11B5/722 , Y10S428/90 , Y10T428/265 , Y10T428/31935
摘要： A magnetic recording medium exhibiting improved running stability and durability is obtained by covering a magnetic layer of ferromagnetic metal thin film with a topcoat layer comprising at least one fatty acid ester having a melting point of from -20.degree. C. to 30.degree. C. and at least one compound containing a group having a radiation sensitive unsaturated double bond and a group having a fluorine substituted alkyl group.
摘要翻译：通过用包含至少一种熔点为-20℃至30℃的脂肪酸酯的顶涂层覆盖强磁性金属薄膜的磁性层，获得表现出改善的运行稳定性和耐久性的磁记录介质，以及至少一种含有具有辐射敏感性不饱和双键的基团和具有氟取代的烷基的基团的化合物。

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