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61. 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。

62. 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。

63. 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。

64. 发明授权

US4548871A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4548871A
公开(公告)日：1985-10-22
申请号：US562002
申请日：1983-12-16
申请人： Kouji Kobayashi , Kiyoshi Noguchi , Suguru Takayama
发明人： Kouji Kobayashi , Kiyoshi Noguchi , Suguru Takayama
IPC分类号： C23C14/22 , G11B5/64 , G11B5/65 , G11B5/66 , G11B5/716
CPC分类号： C23C14/226 , G11B5/64 , G11B5/66 , G11B5/716 , Y10S428/928 , Y10T428/1234 , Y10T428/12465 , Y10T428/12646 , Y10T428/1266 , Y10T428/12861 , Y10T428/12931
摘要： A magnetic recording medium which comprises a magnetic layer formed on a substrate and comprising Co, or Co and one to three elements selected from the group consisting of Ni, Cr and O, said magnetic layer comprising sequentially from the substrate side, a first portion composed of crystal particles which are not inclined relative to the normal line of the principal plane of the substrate, a second portion composed of columnar crystal particles which are inclined relative to the normal line of the principal plane of the substrate, and a third portion composed of crystal particles which are not inclined relative to the normal line of the principal plane of the substrate.
摘要翻译：一种磁记录介质，包括形成在基底上的包含Co或Co的磁性层和从Ni，Cr和O组成的组中选择的一种至三种元素的磁性层，所述磁性层从衬底侧依次包括第一部分相对于基板的主面的法线不倾斜的晶体粒子，由相对于基板的主面的法线倾斜的柱状结晶粒子构成的第二部分，以及由不相对于基板的主面的法线倾斜的结晶粒子。

65. 发明申请

US20120230167A1 MICROWAVE ASSISTED MAGNETIC HEAD AND MAGNETIC DISK DEVICE 有权
标题翻译： MICROWAVE辅助磁头和磁性磁盘设备
公开(公告)号：US20120230167A1
公开(公告)日：2012-09-13
申请号：US13045603
申请日：2011-03-11
申请人： Tsutomu AOYAMA , Tetsuya Roppongi , Yoshikazu Soeno , Kiyoshi Noguchi , Isamu Sato
发明人： Tsutomu AOYAMA , Tetsuya Roppongi , Yoshikazu Soeno , Kiyoshi Noguchi , Isamu Sato
IPC分类号： G11B13/04
CPC分类号： G11B5/314 , G11B5/1278 , G11B2005/0024
摘要： A microwave assisted magnetic head of the present invention includes: at least two or more auxiliary coils that are arranged in a periphery of a writing main pole; and microwave current supply means that applies microwave currents to the at least two or more auxiliary coils. The at least two or more auxiliary coils respectively include linear body parts linearly arranged on an ABS side, two of the linear body parts of the at least two or more auxiliary coils are arranged in a substantially orthogonal positional relationship, and the microwave current supply means is configured such that the microwave current supply means changes phase differences of the microwave currents applied respectively to the at least two or more auxiliary coils. Therefore, the microwave current can be easily controlled, and thus, a circularly polarized magnetic field with high magnetization inversion efficiency can be generated as an assistance magnetic field.
摘要翻译：本发明的微波辅助磁头包括：布置在书写主极的周边中的至少两个或更多个辅助线圈; 以及微波电流供给装置，其向所述至少两个或更多个辅助线圈施加微波电流。所述至少两个以上的辅助线圈分别包括直线状配置在ABS侧的线状体部，所述至少两个以上的辅助线圈的线状体部的两个以大致正交的位置关系配置，微波电流供给装置被配置为使得微波电流提供装置改变分别施加到至少两个或更多个辅助线圈的微波电流的相位差。因此，可以容易地控制微波电流，因此可以产生具有高磁化反转效率的圆极化磁场作为辅助磁场。

66. 发明授权

US08174937B2 Thin-film magnetic head having microwave magnetic exciting function and magnetic recording and reproducing apparatus 有权
标题翻译：具有微波磁激励功能的薄膜磁头和磁记录和重放装置
公开(公告)号：US08174937B2
公开(公告)日：2012-05-08
申请号：US12550662
申请日：2009-08-31
申请人： Hiroshi Ikeda , Kiyoshi Noguchi , Saori Kajihara , Isamu Sato
发明人： Hiroshi Ikeda , Kiyoshi Noguchi , Saori Kajihara , Isamu Sato
IPC分类号： G11B11/00
CPC分类号： G11B5/1278 , G11B2005/001 , G11B2005/0024
摘要： A thin-film magnetic head having microwave magnetic exciting function includes a write magnetic field production means for producing, in response to a write signal, a write magnetic field to be applied into a magnetic recording medium, and at least line conductor of a microwave radiator of a plane-structure type, formed independent from the write magnetic field production means, for radiating, by feeding there through a microwave excitation current, a microwave band resonance magnetic field with a frequency equal to or in a range near a ferromagnetic resonance frequency FR of the magnetic recording medium.
摘要翻译：具有微波磁激励功能的薄膜磁头包括写入磁场产生装置，用于响应于写入信号产生要施加到磁记录介质中的写入磁场，以及至少微波辐射器的线路导体的平面结构型，与写入磁场产生装置无关，用于通过微波激励电流向其馈送具有等于或接近铁磁共振频率FR的频率的微波频带共振磁场的磁记录介质。

67. 发明申请

US20110255197A1 MICROWAVE OSCILLATING ELEMENT AND THIN FILM MAGNETIC HEAD THEREWITH 有权
标题翻译：微波振荡元件和薄膜磁头
公开(公告)号：US20110255197A1
公开(公告)日：2011-10-20
申请号：US12763577
申请日：2010-04-20
申请人： Yoshihiro TSUCHIYA , Kiyoshi Noguchi , Migaku Takahashi , Masakiyo Tsunoda
发明人： Yoshihiro TSUCHIYA , Kiyoshi Noguchi , Migaku Takahashi , Masakiyo Tsunoda
IPC分类号： G11B5/127 , G11B5/48 , H02N99/00
CPC分类号： G11B5/6005 , G11B5/314 , G11B2005/0024
摘要： A microwave oscillation element of the present invention includes a lamination main part in which an oscillating layer that is a magnetization free layer and that generates a high frequency electromagnetic field by an excitation of a spin wave, a nonmagnetic intermediate layer, a polarizer layer, and a reference layer that is to be a base magnetic layer of a spin transfer due to application of current are layered in this order. The oscillating layer is made of CoIr, the polarizer layer is configured of CoCr or CoRu; and the nonmagnetic intermediate layer is configured of Cr or Ru. As a result, the efficiency of the spin injection is improved and the microwave oscillation element where the oscillation efficiency is excellent can be realized.
摘要翻译：本发明的微波振荡元件包括层叠主体部，其中，作为磁化自由层的振动层，通过自旋波的激发产生高频电磁场，非磁性中间层，偏振片层和将由于施加电流而成为自旋转移的基础磁性层的参考层按此顺序分层。振荡层由CoIr制成，偏振层由CoCr或CoRu构成; 非磁性中间层由Cr或Ru构成。结果，提高了自旋注入的效率，并且可以实现振荡效率优异的微波振荡元件。

68. 发明授权

US08031426B2 Thin-film magnetic head having microwave magnetic exciting function and magnetic recording and reproducing apparatus 有权
标题翻译：具有微波磁激励功能的薄膜磁头和磁记录和重放装置
公开(公告)号：US08031426B2
公开(公告)日：2011-10-04
申请号：US12700278
申请日：2010-02-04
申请人： Hiroshi Ikeda , Sayaka Hattori , Kiyoshi Noguchi
发明人： Hiroshi Ikeda , Sayaka Hattori , Kiyoshi Noguchi
IPC分类号： G11B5/02 , G11B5/127
CPC分类号： G11B5/314 , G11B2005/001 , G11B2005/0024
摘要： A thin-film magnetic head having microwave magnetic exciting function, includes a write magnetic field production unit for producing, in response to a write signal, a write magnetic field to be applied into a magnetic recording medium, a line conductor of a microwave radiator of a plane-structure type, formed independent from the write magnetic field production means, for radiating, by feeding there through a microwave excitation current, a microwave band resonance magnetic field with a frequency equal to or in a range near a ferromagnetic resonance frequency FR of the magnetic recording medium, and two conductors separated from the line conductor in a direction perpendicular to a track-width direction of the thin-film magnetic head and parallel to an ABS of the thin-film magnetic head. The microwave radiator is an inverted micro strip waveguide having the line conductor and a ground conductor constituted by the magnetic recording medium. A section of the line conductor, perpendicular to the track-width direction has a rectangular shape. An aspect ratio B/A is within a region from 0.15 to 1.2 or within a region of 7 or more, where A is a length in a lateral direction of the line conductor, which is in parallel with the ABS and perpendicular to the track-width direction, and B is a length in a longitudinal direction of the line conductor, which is perpendicular to the air bearing surface.
摘要翻译：一种具有微波磁激励功能的薄膜磁头，包括写入磁场产生单元，用于响应于写入信号，产生要施加到磁记录介质中的写入磁场，微波辐射器的线路导体平面结构类型，独立于写入磁场产生装置形成，用于通过微波激励电流向其馈送频率等于或接近铁磁谐振频率FR的频率的微波频带共振磁场磁记录介质和两条导体，它们在垂直于薄膜磁头的磁道宽度方向的方向上与线路导体分离，并平行于薄膜磁头的ABS。微波辐射器是具有线路导体和由磁记录介质构成的接地导体的倒置微带波导。垂直于轨道宽度方向的线路导体的一部分具有矩形形状。纵横比B / A在0.15至1.2的范围内或在7或更大的区域内，其中A是线路导体的横向方向上的长度，其与ABS平行并垂直于轨道 - 宽度方向，B是与空气轴承面垂直的线状导体的长度方向的长度。

69. 发明申请

US20090290267A1 Magnetic Recording and Reproducing Apparatus with Thin-Film Magnetic Head Having Microwave Magnetic Exciting Function 有权
标题翻译：具有微波磁激励功能的薄膜磁头的磁记录和再现装置
公开(公告)号：US20090290267A1
公开(公告)日：2009-11-26
申请号：US12470150
申请日：2009-05-21
申请人： Hiroshi Ikeda , Saori Kajihara , Kiyoshi Noguchi , Isamu Sato
发明人： Hiroshi Ikeda , Saori Kajihara , Kiyoshi Noguchi , Isamu Sato
IPC分类号： G11B5/33
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/3967 , G11B25/043 , G11B33/08 , G11B2005/001 , G11B2005/0024 , G11B2005/3996
摘要： A magnetic recording and reproducing apparatus with a thin-film magnetic head having microwave magnetic exciting function, includes a metal housing, a magnetic recording medium, arranged in the metal housing, having a magnetic recording layer, and a thin-film magnetic head, arranged in the metal housing, having a write magnetic field production unit and a resonance magnetic field production unit. The write magnetic field production unit produces, in response to a write signal, a write magnetic field to be applied into the magnetic recording layer, and the resonance magnetic field production unit produces, in response to a microwave excitation signal, a resonance magnetic field with a frequency equal to or in a range near a ferromagnetic resonance frequency FR of a the magnetic recording layer. The apparatus further includes a write signal generation unit, arranged in the metal housing, for generating the write signal, a microwave signal generation unit, arranged in the metal housing, for generating the microwave excitation signal, a transmission unit, arranged in the metal housing, for feeding the microwave excitation signal generated by the microwave signal generation unit to the resonance magnetic field production unit in the thin-film magnetic head and for feeding the write signal generated by the write signal generation unit to the write magnetic field production unit in the thin-film magnetic head, and a plurality of metal ribs, arranged in the metal housing, for forming a plurality of cavities, each of the plurality of cavities having a rectangular horizontal section shape and having dimensions to produce no resonance at a frequency of the microwave excitation signal.
摘要翻译：具有微波磁激励功能的薄膜磁头的磁记录和重放装置包括布置在具有磁记录层的金属外壳中的金属外壳，磁记录介质和薄膜磁头，在金属外壳中，具有写入磁场产生单元和共振磁场产生单元。写入磁场产生单元响应于写入信号产生要施加到磁记录层中的写入磁场，并且谐振磁场产生单元响应于微波激励信号产生具有等于或者在磁记录层的铁磁共振频率FR附近的范围内的频率。该装置还包括写入信号生成单元，布置在金属外壳中用于产生写入信号，布置在金属外壳中的用于产生微波激励信号的微波信号产生单元，布置在金属外壳中的传输单元，用于将由微波信号生成单元生成的微波激励信号馈送到薄膜磁头中的共振磁场产生单元，并将由写入信号生成单元生成的写信号馈送到写入磁场产生单元薄膜磁头和多个金属肋，布置在金属壳体中，用于形成多个空腔，多个空腔中的每一个具有矩形水平截面形状，并且具有尺寸以便在频率处不产生共振微波激励信号。

70. 发明申请

US20080274379A1 THIN FILM DEVICE WITH LEAD CONDUCTOR FILM OF INCREASED SURFACE AREA 有权
标题翻译：具有引导导体薄膜的薄膜装置增加表面积
公开(公告)号：US20080274379A1
公开(公告)日：2008-11-06
申请号：US11742788
申请日：2007-05-01
申请人： Shingo Miyata , Atsushi Yamaguchi , Kiyoshi Noguchi , Makoto Sato
发明人： Shingo Miyata , Atsushi Yamaguchi , Kiyoshi Noguchi , Makoto Sato
IPC分类号： G11B5/39 , G11B5/127 , G11B5/64
CPC分类号： G11B5/4853 , Y10T428/1121
摘要： The present invention relates to a thin-film device including a thin-film element and a lead conductor film. The thin-film element and the lead conductor film are embedded in an insulating film. The lead conductor film has a terminal area at one end thereof, is connected to the thin-film element at the other end thereof, and between the one end and the other end, has an increased surface area portion whose volume is partially occupied by an insulating material to increase surface area. As a result, there is provided a high frequency thin-film device capable of reducing loss and heat generation due to skin effect, particularly a thin-film magnetic head.
摘要翻译：本发明涉及包括薄膜元件和引线导体膜的薄膜器件。薄膜元件和引线导体膜嵌入绝缘膜中。引线导体膜的一端具有端子区域，在其另一端连接到薄膜元件，并且在一端与另一端之间具有增加的表面积部分，其体积部分地被绝缘材料增加表面积。结果，提供了能够减少由于皮肤效应引起的损失和发热的高频薄膜器件，特别是薄膜磁头。

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