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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
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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92.发明授权公开(公告)号：US07440238B2
公开(公告)日：2008-10-21
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： G11B5/127
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。
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公开(公告)号：US07312951B2
公开(公告)日：2007-12-25
申请号：US11038390
申请日：2005-01-21
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。
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公开(公告)号：US20060215148A1
公开(公告)日：2006-09-28
申请号：US11377449
申请日：2006-03-17
CPC分类号： G01S17/936 , G01C3/08 , G01S17/46
摘要： A scan trajectory of a laser beam is controlled based on external signals each related to a driving direction and a driving speed, a result obtained by detection of an obstacle, and signals related to distances to the obstacle. For example, at the time of a right turn, a scan trajectory for increasing scan frequency on a portion shifted in a right-turn direction from a center axis in a driving direction is set. At the time of high-speed driving, a scan trajectory for increasing scan frequency on a center portion in the driving direction is set. When the obstacle is detected at a position corresponding to a distance shorter than a threshold distance, a scan trajectory for increasing scan frequency in the vicinity of the obstacle is set. Detection of the obstacle and monitoring of a state thereof are adequately and smoothly performed at the time of changing of the driving direction, the time of high-speed driving, and the time of detection of the obstacle.
摘要翻译： 基于与驱动方向和驱动速度相关的外部信号，通过检测障碍物获得的结果以及与障碍物的距离相关的信号来控制激光束的扫描轨迹。 例如，在右转时，设定用于增加扫描频率的扫描轨迹，该扫描轨迹用于沿着驱动方向从中心轴沿右转方向移动的部分增加扫描频率。 在高速驱动时，设定用于增加驱动方向上的中心部分的扫描频率的扫描轨迹。 当在对应于比阈值距离短的距离的位置处检测到障碍物时，设置用于增加障碍物附近的扫描频率的扫描轨迹。 在改变行驶方向，高速行驶时间和障碍物的检测时间时，对障碍物的检测和状态的监视充分而平稳地进行。
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95.发明申请Magnetic head for perpendicular magnetic recording, head gimbal assembly, head arm assembly and magnetic disk drive 有权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
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。
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公开(公告)号：US20060011903A1
公开(公告)日：2006-01-19
申请号：US11232019
申请日：2005-09-22
申请人： Atsushi Yamaguchi , Masaru Kuramoto , Masaaki Nido
发明人： Atsushi Yamaguchi , Masaru Kuramoto , Masaaki Nido
IPC分类号： H01L29/06
CPC分类号： B82Y20/00 , H01L33/32 , H01S5/34333 , H01S2304/12
摘要： The present invention provides a semiconductor device having a semiconductor multi-layer structure which includes at least an active layer having at least a quantum well, and the active layer further including at least a luminescent layer of InxAlyGa1-x-yN (0
摘要翻译： 本发明提供一种具有半导体多层结构的半导体器件，其至少包括具有至少一个量子阱的有源层，并且所述有源层还包括至少一个In x Al 其中，所述至少量子阱中的每一个的阈值模式增益为（1≤x≤1,0≤y≤0.2），其中， 不超过12cm -1，并且其中至少发光层的带隙能量中的微观波动的标准偏差在75meV至200meV的范围内。
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公开(公告)号：US20050286170A1
公开(公告)日：2005-12-29
申请号：US11038390
申请日：2005-01-21
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。
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公开(公告)号：US06930969B2
公开(公告)日：2005-08-16
申请号：US09983732
申请日：2001-10-25
申请人： Atsushi Yamaguchi , Masahiro Kato , Eiji Muramatsu
发明人： Atsushi Yamaguchi , Masahiro Kato , Eiji Muramatsu
CPC分类号： G11B7/24 , G11B7/007 , G11B7/00745 , G11B7/0938 , G11B7/24085 , G11B7/261 , G11B20/1252
摘要： In an optical recording medium 10 comprising groove tracks 11 including a first area Ba for recording record information and a second area Ca in which predetermined data is formed as embossed pit rows 19 and a readout of other data overwritten and recorded on said embossed pit rows 19 is prevented, and land tracks 12 formed between the adjacent groove tracks 11, a depth Ed and a duty of the embossed pit rows 19 are set so that a radial push-pull signal in the first area and a radial push-pull signal in the second area become the substantially same level.
摘要翻译： 在包括具有用于记录记录信息的第一区域Ba和其中预定数据被形成为浮雕凹坑行19的第二区域Ca的凹槽轨迹11的光学记录介质10中，以及被覆盖并记录在所述压纹凹坑行19上的其它数据的读出 并且在相邻的凹槽轨道11之间形成的脊迹12，深度Ed和压花凹坑列19的占空比被设置为使得第一区域中的径向推挽信号和第一区域中的径向推挽信号 第二区域成为同等水平。
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99.发明授权Thin-film magnetic head having a magnetism intercepting layer provided between read head and write head 失效具有设置在读头和写头之间的磁截取层的薄膜磁头公开(公告)号：US06882508B2
公开(公告)日：2005-04-19
申请号：US09853158
申请日：2001-05-10
申请人： Atsushi Yamaguchi , Shigeru Shoji
发明人： Atsushi Yamaguchi , Shigeru Shoji
CPC分类号： G11B5/3967 , G11B5/11 , G11B5/112 , G11B5/115 , G11B5/3133 , Y10T29/49021 , Y10T29/49044 , Y10T29/49048 , Y10T29/49052
摘要： A thin-film magnetic head comprises a read head and a write head. The read head and the write head are placed such that a top shield layer of the read head and a bottom pole layer of the write head are opposed to each other. A magnetism intercepting layer is provided between the top shield layer and the bottom pole layer. The magnetism intercepting layer is made of a nonmagnetic metal material that is capable of being formed through plating, such as platinum. The top shield layer, the magnetism intercepting layer and the bottom pole layer are consecutively formed through plating.
摘要翻译： 薄膜磁头包括读取头和写入头。 读头和写头被放置成使得读头的顶屏蔽层和写头的底极层彼此相对。 在上屏蔽层和底极层之间设置有磁截取层。 磁截止层由能够通过电镀形成的非磁性金属材料制成，例如铂。 顶层屏蔽层，磁截取层和底极层通过电镀连续形成。
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100.发明授权公开(公告)号：US06847590B2
公开(公告)日：2005-01-25
申请号：US09931080
申请日：2001-08-17
申请人： Atsushi Yamaguchi , Naoyuki Takagi , Yoshiharu Uchihara , Satoshi Sumi , Hiroyuki Awano , Hiroshi Shirai , Hitoshi Watanabe , Norio Ohta
发明人： Atsushi Yamaguchi , Naoyuki Takagi , Yoshiharu Uchihara , Satoshi Sumi , Hiroyuki Awano , Hiroshi Shirai , Hitoshi Watanabe , Norio Ohta
IPC分类号： G11B7/007 , G11B7/013 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10595 , G11B7/00736 , G11B7/24085 , G11B11/10515 , G11B11/10584
摘要： A magneto-optical recording medium which includes a reproducing layer. When a laser beam is irradiated to the magneto-optical recording medium, a magnetic domain in a recording layer is transferred, through enlargement, to a reproducing layer increased in temperature. The magneto-optical recording medium further includes a calibration area that has a calibration magnetic domain recorded in a predetermined pattern in the recording layer. In a reproducing apparatus, a laser beam of an optical head is adjusted in output depending upon a reproduced signal obtained by reproducing the calibration magnetic domain.
摘要翻译： 一种磁光记录介质，包括再现层。 当激光束照射到磁光记录介质时，记录层中的磁畴通过放大转移到温度升高的再生层。 磁光记录介质还包括具有以记录层中的预定图案记录的校准磁畴的校准区域。 在再现装置中，根据通过再现校准磁畴获得的再现信号，调节光学头的激光束的输出。
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