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21. 发明授权

US4939553A Original detection apparatus 失效
标题翻译：原始检测装置
公开(公告)号：US4939553A
公开(公告)日：1990-07-03
申请号：US331172
申请日：1989-03-31
申请人： Isamu Sato , Yoshihiro Funamizu
发明人： Isamu Sato , Yoshihiro Funamizu
IPC分类号： G03G15/00
CPC分类号： G03G15/605 , G03G15/607 , G03G2215/00185
摘要： An original detection apparatus includes a placing table for placing an original thereon, an openable/closable pressing member for covering the original placed on the placing table, an original detection unit, arranged below the placing table, for detecting the presence/absence of the original on the placing table, an open/closed detection unit for detecting an open/closed state of the pressing member, and a judging unit for judging whether or not the original is placed on the placing table, on the basis of an output from the original detection unit obtained when the open/closed detection unit detects that the pressing member is in an open state and an output from the original detection unit obtained when the open/closed detection unit detects that the pressing member is in a closed state.
摘要翻译：一种原始检测装置，包括用于放置原稿的放置台，用于覆盖放置在放置台上的原稿的可打开/关闭的按压部件，布置在放置台下方的用于检测原稿的存在/不存在的原稿检测单元在放置台上设置有用于检测按压部件的打开/关闭状态的打开/关闭检测部，以及判断部，根据原稿的输出判断原稿是否被放置在放置台上当打开/关闭检测单元检测到按压构件处于打开状态时获得的检测单元和当打开/关闭检测单元检测到按压构件处于关闭状态时获得的原稿检测单元的输出。

22. 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。

23. 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。

24. 发明授权

US08107352B1 Microwave assisted magnetic head 有权
标题翻译：微波辅助磁头
公开(公告)号：US08107352B1
公开(公告)日：2012-01-31
申请号：US12852775
申请日：2010-08-09
申请人： Noboru Yamanaka , Takuya Adachi , Isamu Sato , Hiroshi Ikeda
发明人： Noboru Yamanaka , Takuya Adachi , Isamu Sato , Hiroshi Ikeda
IPC分类号： G11B7/00 , G11B5/147
CPC分类号： G11B5/314 , G11B5/1278 , G11B2005/0024
摘要： A microwave assisted magnetic head is formed to include a main pole magnetic layer including a main pole; a shielded magnetic layer including a shielded pole; a recording coil that is formed to generate a writing magnetic field from a tip of the main pole; and a microwave radiation waveguide made of a conductive nonmagnetic material that is disposed in a recording gap, the recording gap being a gap between the main pole and the shielded pole. The main pole magnetic layer and the shielded magnetic layer have an intermediate connection part that connects the layers at a depth-side, and an electrical insulation magnetic film is disposed in the intermediate connection part, and the main pole and the shielded pole are electrically connected with the microwave radiation waveguide that is disposed in the recording gap, which is the gap between the main pole and the shielded pole so that a simple configuration, with a relatively easy and efficient manufacturing process, is realized that overlaps AC magnetic fields in an in-plane direction of a microwave band, which is the same as, or close to, a ferromagnetic resonant frequency of a medium recording layer.
摘要翻译：微波辅助磁头形成为包括主极的主极磁性层; 包括屏蔽极的屏蔽磁性层; 形成为从主极的尖端产生书写磁场的记录线圈; 以及设置在记录间隙中的由导电非磁性材料制成的微波辐射波导，记录间隙是主极和屏蔽极之间的间隙。主极磁性层和屏蔽磁性层具有在深度侧连接层的中间连接部，并且在中间连接部中设置电绝缘性的磁性膜，并且主极和屏蔽极电气连接利用布置在作为主极和屏蔽极之间的间隙的记录间隙中的微波辐射波导，从而实现了具有相对简单和有效的制造工艺的简单配置，其与交流磁场重叠，与介质记录层的铁磁谐振频率相同或接近的微波频带的平面方向。

25. 发明授权

US07733611B2 Magnetoresistance effect element comprising nano-contact portion not more than a mean free path and magnetic head utilizing same 失效
标题翻译：磁阻效应元件包括不超过平均自由程的纳米接触部分和利用其的磁头
公开(公告)号：US07733611B2
公开(公告)日：2010-06-08
申请号：US11679814
申请日：2007-02-27
申请人： Isamu Sato , Rachid Sbiaa
发明人： Isamu Sato , Rachid Sbiaa
IPC分类号： G11B5/39
CPC分类号： H01L43/08 , G11B5/3912
摘要： A magnetoresistance effect element comprises a free layer composed of a ferromagnetic layer, a pinned layer composed of a ferromagnetic layer, and a layer disposed between the free layer and the pinned layer and including at least one nano-contact portion disposed at least one portion between the free layer and the pinned layer. The nano-contact portion has a dimension, including at least one of a length in the layer lamination direction and a length in a direction normal to the layer lamination direction, being not more than Fermi length. The nano-contact portion is provided, in an inside portion thereof, with a magnetic wall composed of either one of Bloch magnetic wall, Nëel magnetic wall or a combination wall thereof.
摘要翻译：磁阻效应元件包括由铁磁层组成的自由层，由铁磁层组成的被钉扎层和设置在自由层和钉扎层之间的层，并且包括至少一个纳米接触部分，自由层和钉扎层。纳米接触部分具有包括层叠方向上的长度和垂直于层叠方向的方向上的长度中的至少一个的尺寸，不大于费米长度。纳米接触部分在其内部设置有由布洛赫磁性壁，奈尔磁性壁或其组合壁中的任一个组成的磁性壁。

26. 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。

27. 发明申请

US20090009915A1 FILM AND METHOD FOR PRODUCING NANO-PARTICLES FOR MAGNETORESISTIVE DEVICE 有权
标题翻译：用于制造磁性器件的纳米颗粒的膜和方法
公开(公告)号：US20090009915A1
公开(公告)日：2009-01-08
申请号：US12179293
申请日：2008-07-24
申请人： Rachid Sbiaa , Isamu Sato , Haruyuki Morita
发明人： Rachid Sbiaa , Isamu Sato , Haruyuki Morita
IPC分类号： G11B5/33
CPC分类号： C23C14/46 , B82Y25/00 , B82Y30/00 , B82Y40/00 , G11B5/3903 , H01F10/3227 , H01F10/3272 , H01F41/18 , H01F41/301 , H01F41/305 , H01L43/12
摘要： A method of generating a thin film for use in a spin valve of a magnetoresistive (MR) sensor having a nano-constricted spacer is provided. The bottom portion of the spin valve is deposited up to the pinned layer, a deposition chamber is provided, and the spacer layer is sputtered thereon. A main ion beam generates ions onto a composite surface including magnetic chips and insulator material. Simultaneously, an assisted ion beam provides ions directly to the substrate, thus improving the softness of the free layer and smoothness of the spacer layer. Neutralizers are also provided to prevent ion repulsion and improve ion beam focus. As a result, a thin film spacer can be formed, and the nano-constricted MR spin valve having low free layer coercivity and low interlayer coupling between the free layer and pinned layer is formed.
摘要翻译：提供一种生产用于具有纳米收缩间隔物的磁阻（MR）传感器的自旋阀中的薄膜的方法。自旋阀的底部沉积到被钉扎层，设置沉积室，并且间隔层溅射在其上。主离子束产生离子到包括磁性芯片和绝缘体材料的复合表面上。同时，辅助离子束将离子直接提供给衬底，从而提高了自由层的柔软度和间隔层的平滑度。还提供中和剂以防止离子排斥并改善离子束聚焦。结果，可以形成薄膜间隔物，并且形成自由层和被钉扎层之间具有低自由层矫顽力和低层间耦合的纳米收缩的MR自旋阀。

28. 发明授权

US07184247B2 Magnetoresistance effect element comprising nano-contact portion not more than a fermi length, method of manufacturing same and magnetic head utilizing same 有权
标题翻译：磁阻效应元件包括不超过费米长度的纳米接触部分，其制造方法和使用其的磁头
公开(公告)号：US07184247B2
公开(公告)日：2007-02-27
申请号：US10882322
申请日：2004-07-02
申请人： Isamu Sato , Rachid Sbiaa
发明人： Isamu Sato , Rachid Sbiaa
IPC分类号： G11B5/39
CPC分类号： H01L43/08 , G11B5/3912
摘要： A magnetoresistanee effect element comprises a free layer composed of a ferromagnetic layer, a pinned layer composed of a ferromagnetic layer, and a layer disposed between the free layer and the pinned layer and including at least one nano-contact portion disposed between the free layer and the pinned layer. The nano-contact portion has a dimension, including at least one of a length in the layer lamination direction and a length in a direction normal to the layer lamination direction, being not more than Fermi length. The nano-contact portion is provided, in an inside portion thereof, with a magnetic wall composed of either one of Bloch magnetic wall, Neel magnetic wall or a combination wall thereof.
摘要翻译：磁阻效应元件包括由铁磁性层构成的自由层，由铁磁层组成的被钉扎层和设置在自由层和被钉扎层之间的层，并且包括设置在自由层与自由层之间的至少一个纳米接触部分固定层。纳米接触部分具有包括层叠方向上的长度和垂直于层叠方向的方向上的长度中的至少一个的尺寸，不大于费米长度。纳米接触部分在其内部设置有由Bloch磁性壁，Neel磁性壁或其组合壁中的任一个组成的磁性壁。

29. 发明申请

US20060187564A1 Heat assisted magnetic recording head and heat assisted magnetic recording apparatus 有权
标题翻译：热辅助磁记录头和热辅助磁记录装置
公开(公告)号：US20060187564A1
公开(公告)日：2006-08-24
申请号：US11319164
申请日：2005-12-28
申请人： Isamu Sato , Taro Oike , Naoki Hanashima
发明人： Isamu Sato , Taro Oike , Naoki Hanashima
IPC分类号： G11B5/02
CPC分类号： G11B5/1278 , G11B2005/0021 , G11B2005/0029
摘要： A heat assisted magnetic recording head is provided, which can prevent an effect of a heat in a laser diode when a magnetic recording region is heated by a heating laser beam and which can reduce its size and weight. In the heat assisted magnetic recording head, a recording magnetic pole, a magnetic recording element, a magnetic read element, an optical waveguide, and an irradiating optical waveguide are attached to a floating slider provided below a suspension. The laser diode is arranged on an opposite side of the suspension to the floating slider. The heating laser beam emitted from the laser diode is directed to the irradiating optical waveguide through the optical waveguide, so that a magnetic recording medium is irradiated with the heating laser beam exiting from the irradiating optical waveguide.
摘要翻译：提供了一种热辅助磁记录头，当磁记录区域被加热激光束加热并且可以减小其尺寸和重量时，可以防止激光二极管中的热量的影响。在热辅助磁记录头中，记录磁极，磁记录元件，磁读取元件，光波导和照射光波导安装在设置在悬架下方的浮动滑块上。激光二极管布置在与浮动滑块的悬架的相对侧上。从激光二极管发射的加热激光束通过光波导被引导到照射光波导，使得从记录光波导出射的加热激光束照射磁记录介质。

30. 发明申请

US20060114620A1 Granular type free layer and magnetic head 审中-公开
标题翻译：颗粒型自由层和磁头
公开(公告)号：US20060114620A1
公开(公告)日：2006-06-01
申请号：US10998660
申请日：2004-11-30
申请人： Rachid Sbiaa , Isamu Sato , Haruyuki Morita
发明人： Rachid Sbiaa , Isamu Sato , Haruyuki Morita
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： H01L43/08 , B82Y10/00 , B82Y25/00 , G11B5/3929 , G11B2005/3996
摘要： A reader of a magnetoresistive head includes a granular type free layer. The magnetoresistive head is for a current-perpendicular to plane type, and can be used in either a giant magnetoresistance (GMR) or ballistic magnetoresistance (BMR) scheme. The granular type free layer includes an insulating matrix, for example but not by way of limitation, Al2O3, and metal magnetic grains, for example but not by way of limitation, Ni, CoFe or NiFe. The metal grain size is about 10 to 30 nm, and the effect of having these grains interspersed in the insulative matrix is to provide a softer granular type free layer having a low magnetization. Accordingly, the granular type free layer of the present invention can be made thicker, on the order of about 5 to 10 nm, thus further improving overall thermal stability, reducing spin transfer effect and improving output read signal.
摘要翻译：磁阻头的读取器包括粒状自由层。磁阻头用于电流垂直于平面型，可用于巨磁电阻（GMR）或弹道磁阻（BMR）方案。颗粒状自由层包括绝缘基质，例如但不限于Al 2 O 3，和金属磁性颗粒，例如但不限于 Ni，CoFe或NiFe。金属粒径为10〜30nm左右，散布在绝缘基体中的这些晶粒的效果是提供具有低磁化强度的较软的粒状自由层。因此，可以使本发明的粒状自由层的厚度约为5〜10nm左右，从而进一步提高整体热稳定性，降低自旋转移效果，提高输出读出信号。

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