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31. 发明授权

US06710973B2 Single pole type recording head including tapered edges 失效
标题翻译：单极型记录头包括锥形边缘
公开(公告)号：US06710973B2
公开(公告)日：2004-03-23
申请号：US09920648
申请日：2001-08-03
申请人： Tomohiro Okada , Yoshiaki Kawato , Yasutaka Nishida , Yasuo Wakaki , Masafumi Mochizuki , Hisashi Takano
发明人： Tomohiro Okada , Yoshiaki Kawato , Yasutaka Nishida , Yasuo Wakaki , Masafumi Mochizuki , Hisashi Takano
IPC分类号： G11B5127
CPC分类号： G11B5/1278 , G11B5/012 , Y10S977/934 , Y10S977/935
摘要： A magnetic head for perpendicular recording without writing from the lateral sides of a main pole and without erasing data on adjacent tracks. A magnetic disk storage apparatus using the magnetic head. The lateral side of the main pole of a magnetic head for perpendicular recording may have an inverted tapered shape obtained by forming a groove as a track portion to an inorganic insulating layer and then forming a magnetic layer and then flattening the upper surface. A leading edge, a trailing edge, or both lateral edges of the magnetic head may be tapered. The taper may be either smooth and linear or curved in profile.
摘要翻译：用于垂直记录的磁头，无需从主极的侧面进行写入，而不会在相邻轨道上擦除数据。一种使用该磁头的磁盘存储装置。用于垂直记录的磁头的主极的侧面可以具有通过在无机绝缘层上形成作为轨道部分的槽然后形成磁性层然后使上表面变平而获得的倒锥形。磁头的前缘，后缘或两个侧边缘可以是锥形的。锥形可以是平滑的，线性的或弯曲的。

32. 发明授权

US08830635B2 Magnetic head having shield layer(s) with low coefficient of thermal expansion and magnetic storage apparatus having same 有权
标题翻译：具有低热膨胀系数的屏蔽层的磁头和具有这种磁头的磁存储装置
公开(公告)号：US08830635B2
公开(公告)日：2014-09-09
申请号：US11807744
申请日：2007-05-29
申请人： Katsuro Watanabe , Katsumi Hoshino , Masafumi Mochizuki
发明人： Katsuro Watanabe , Katsumi Hoshino , Masafumi Mochizuki
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/3967
摘要： Embodiments in accordance with the present invention provide a magnetic head of the CPP structure for perpendicular magnetic recording, that is excellent in read performance, and stable in write/read performances by enhancing the external field durability, and further, suppresses deterioration in read sensor property, due to thermal factors. At least either shield layer of a lower magnetic shield layer, and an upper magnetic shield layer, closer to a perpendicular magnetic write head, is made up so as to have a multi-layered structure comprising low thermal expansion nonmagnetic layers, and magnetic layers. Material having a coefficient of thermal expansion smaller than that of a magnetoresistive film is selected as a material for the low thermal expansion nonmagnetic layers of the shield layer.
摘要翻译：根据本发明的实施例提供了一种用于垂直磁记录的CPP结构的磁头，其读取性能优异，并且通过增强外部场强耐久性而在写入/读取性能方面稳定，并且还抑制读取传感器性能的劣化，由于热因素。下磁屏蔽层的至少一个屏蔽层和更靠近垂直磁写头的上磁屏蔽层被制成具有包括低热膨胀非磁性层和磁性层的多层结构。选择热膨胀系数小于磁阻膜的材料作为屏蔽层的低热膨胀非磁性层的材料。

33. 发明申请

US20120307394A1 WRITER HAVING A SHIELD STRUCTURE FOR ADJACENT AND FAR TRACK INTERFERENCE REFRESHMENT 有权
标题翻译：具有相似性和远程跟踪干扰重构的屏蔽结构的WRITER
公开(公告)号：US20120307394A1
公开(公告)日：2012-12-06
申请号：US13154343
申请日：2011-06-06
申请人： Masafumi Mochizuki , Ichiro Yokokawa , Satoshi Ohki
发明人： Masafumi Mochizuki , Ichiro Yokokawa , Satoshi Ohki
IPC分类号： G11B5/02
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315
摘要： In one embodiment, a data storage system includes a magnetic head having a main magnetic pole and a wrap around shield positioned around the main magnetic pole at an ABS thereof, a magnetic medium, a drive mechanism for passing the magnetic medium over the magnetic head, and a controlling mechanism electrically coupled to the magnetic head for controlling operation of the magnetic head that initiates rewriting of information of a recording track of the magnetic medium if a recording magnetic field applied to the recording track exceeds a threshold. In another embodiment, a method includes writing data to a first track of a magnetic medium using a magnetic head, determining characteristics consistent with data degradation from tracks adjacent to the first track and far tracks away from the first track using a controlling mechanism, and rewriting data in tracks determined to be degraded due to ATI and/or FTI.
摘要翻译：在一个实施例中，数据存储系统包括具有主磁极的磁头和围绕主体磁极定位在其ABS处的绕环屏蔽件，磁介质，用于使磁介质穿过磁头的驱动机构，以及电磁耦合到磁头的控制机构，用于控制磁头的操作，如果施加到记录磁道的记录磁场超过阈值，则启动重写磁介质的记录磁道的信息。在另一个实施例中，一种方法包括使用磁头将数据写入磁介质的第一轨道，使用控制机构确定与第一轨道相邻的轨道的数据退化与远离第一轨迹的轨迹的特性，以及重写确定由于ATI和/或FTI而降级的轨道中的数据。

34. 发明授权

US08254061B2 Head-slider with protrusion control structure and manufacturing method of the head-slider with protrusion control structure 有权
标题翻译：具有突起控制结构的头部滑块和具有突起控制结构的头部滑块的制造方法
公开(公告)号：US08254061B2
公开(公告)日：2012-08-28
申请号：US12616033
申请日：2009-11-10
申请人： Kenji Kuroki , Masafumi Mochizuki , Toshiya Shiramatsu
发明人： Kenji Kuroki , Masafumi Mochizuki , Toshiya Shiramatsu
IPC分类号： G11B5/60
CPC分类号： G11B5/3136 , G11B5/1278 , G11B5/6005 , G11B5/6064
摘要： A head-slider. The head-slider includes a slider and a magnetic-recording head formed on the slider. The magnetic-recording head includes a main pole, a return pole to which a recording magnetic field from the main pole returns, a sensor element, a shield provided between the sensor element and the main pole, and a heater element for adjusting a shape of a flying surface of the magnetic-recording head. The magnetic-recording head further includes a first recess provided at a tip end face of at least one element selected from the group consisting of the return pole and the shield, and a second recess provided on an exposed flying surface and corresponding to the first recess.
摘要翻译：头滑块。磁头滑块包括滑块和形成在滑块上的磁记录头。磁记录头包括主极，来自主极的记录磁场返回的返回极，传感器元件，设置在传感器元件和主极之间的屏蔽件，以及用于调节形状的加热器元件磁记录头的飞行表面。磁记录头还包括设置在从由返回极和屏蔽件组成的组中选择的至少一个元件的尖端面处的第一凹部和设置在暴露的飞行表面上并对应于第一凹部的第二凹部。

35. 发明申请

US20100128382A1 MAGNETIC RECORDING DEVICE AND MAGNETIC RECORDING METHOD THEREOF 有权
标题翻译：磁记录装置及其磁记录方法
公开(公告)号：US20100128382A1
公开(公告)日：2010-05-27
申请号：US12622064
申请日：2009-11-19
申请人： Hideaki Maeda , Hiroyasu Tanabe , Masafumi Mochizuki , Hideki Zaitsu
发明人： Hideaki Maeda , Hiroyasu Tanabe , Masafumi Mochizuki , Hideki Zaitsu
IPC分类号： G11B21/02
CPC分类号： G11B19/02 , G11B5/012 , G11B2005/001 , G11B2005/0021
摘要： A magnetic recording device according to one embodiment includes a magnetic recording medium having a magnetic recording layer; a recording element positioned on a head slider; an assistance element for supplying assistance energy to an area on the recording layer to which a recording magnetic field generated by the recording element is applied, the assistance element being positioned on the head slider; and a controller for controlling a size of an assistance area from the assistance element in accordance with a position of the head slider in a radial direction of the magnetic recording medium. Additional systems and methods are also presented.
摘要翻译：根据一个实施例的磁记录装置包括具有磁记录层的磁记录介质; 定位在磁头滑块上的记录元件; 辅助元件，用于向施加有由记录元件产生的记录磁场的记录层上的区域提供辅助能量，辅助元件位于磁头滑块上; 以及控制器，用于根据磁头滑块在磁记录介质的径向方向上的位置来从辅助元件控制辅助区域的尺寸。还介绍了其他系统和方法。

36. 发明申请

US20100128376A1 MAGNETIC DISK DRIVE HAVING ASSISTED RECORDING AND METHODS OF RECORDING DATA THERETO 有权
标题翻译：具有辅助记录的磁盘驱动器和记录数据的方法
公开(公告)号：US20100128376A1
公开(公告)日：2010-05-27
申请号：US12615219
申请日：2009-11-09
申请人： Hiroyasu Tanabe , Hideaki Maeda , Hideki Zaitsu , Masafumi Mochizuki
发明人： Hiroyasu Tanabe , Hideaki Maeda , Hideki Zaitsu , Masafumi Mochizuki
IPC分类号： G11B27/36
CPC分类号： G11B5/012 , G11B5/09 , G11B5/455 , G11B2005/0005 , G11B2005/0021
摘要： In one embodiment, a magnetic disk drive includes a magnetic disk, a head slider for flying above the spinning magnetic disk, a pattern analyzer for analyzing a data pattern of data to be recorded on the magnetic disk to determine a recording current reversal timing and a recording assistance area in accordance with the analysis so that the rear end of the determined recording assistance area is shifted forward if the determined recording current reversal timing is earlier than a criterion, or the rear end of the determined recording assistance area is shifted backward if the determined recording current reversal timing is later than the criterion, a recording assistance element on the slider for forming the determined recording assistance area on the magnetic disk, and a recording element for recording the data on the magnetic disk using the recording current in accordance with the determined recording current reversal timing.
摘要翻译：在一个实施例中，磁盘驱动器包括磁盘，用于在旋转磁盘上方飞行的磁头滑块，用于分析要记录在磁盘上的数据的数据模式以确定记录电流反转定时的模式分析器，以及记录辅助区域，如果所确定的记录电流反转定时早于标准，则确定的记录辅助区域的后端向前移动，或者如果确定的记录辅助区域的后端如果确定的记录电流反转时间晚于该标准，用于在磁盘上形成确定的记录辅助区域的滑块上的记录辅助元件，以及用于使用记录电流将数据记录在磁盘上的记录元件确定记录电流反转时序。

37. 发明申请

US20090313811A1 METHOD OF MANUFACTURING A PERPENDICULAR MAGNETIC RECORDING HEAD 有权
标题翻译：一种完整的磁记录头的制造方法
公开(公告)号：US20090313811A1
公开(公告)日：2009-12-24
申请号：US12487306
申请日：2009-06-18
申请人： Toshio Takahashi , Akihiro Nanba , Masafumi Mochizuki
发明人： Toshio Takahashi , Akihiro Nanba , Masafumi Mochizuki
IPC分类号： H04R31/00
CPC分类号： G11B5/1278 , G11B5/3163 , G11B5/3169 , G11B5/3173 , G11B5/3967 , Y10T29/49036 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906
摘要： In a manufacturing process of a head slider according to one embodiment, a flare point height of a main pole is estimated according to the following procedure. Magnetic field intensity is measured by a sensor, and a maximum point of the magnetic field is assumed as a center of the main pole. The measurement is moved from the center point along a Z direction, such that a measurement value corresponds to a reference value. An attenuation rate (a gradient) of a measurement value of magnetic field intensity to displacement in the Z direction of the measurement point is calculated and normalized with the measurement value, and plotted with respect to the measurement value itself. The gradient is compared to a gradient in a database of samples being separately prepared, each sample having known flare point height, allowing an estimation of the flare point height of the said sample from the comparison.
摘要翻译：在根据一个实施例的磁头滑块的制造过程中，根据以下过程来估计主极的耀斑高度。磁场强度由传感器测量，磁场的最大点被认为是主极的中心。测量从中心点沿Z方向移动，使得测量值对应于参考值。计算测量点的Z方向的磁场强度测量值与位移的衰减率（梯度），并用测量值对其进行归一化，并相对于测量值本身绘制。将梯度与分别制备的样品的数据库中的梯度进行比较，每个样品具有已知的光斑高度，允许从比较中估计所述样品的耀斑高度。

38. 发明授权

US07545595B2 Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle 失效
标题翻译：具有可调节机构的磁盘装置，用于补偿具有偏航角的偏离跟踪位置的写入或加热元件
公开(公告)号：US07545595B2
公开(公告)日：2009-06-09
申请号：US11354912
申请日：2006-02-16
申请人： Takehiko Hamaguchi , Atsushi Nakamura , Yasutaka Nishida , Masafumi Mochizuki , Hideki Sawaguchi
发明人： Takehiko Hamaguchi , Atsushi Nakamura , Yasutaka Nishida , Masafumi Mochizuki , Hideki Sawaguchi
IPC分类号： G11B5/02
CPC分类号： G11B5/6005 , G11B5/012 , G11B5/105 , G11B5/127 , G11B5/1272 , G11B5/2654 , G11B5/4886 , G11B5/56 , G11B2005/001 , G11B2005/0021
摘要： A magnetic disk apparatus including: a disk holding data as magnetic information on a magnetic recording film; a head to perform writing and reading of the magnetic information; a rotary actuator to move the head in a radial direction of the disk; plural heat elements in the head to locally heat the disk; a write element in the head to apply a magnetic field to the disk; and means for selecting at least one heat element from the plural heat elements, wherein the means for selecting the heat element selects at least one heat element from the plural heat elements so as to bring a center line of an area heated by the heat element and a center line of the position of the magnetic field generated by the write element into approximate correspondence, in correspondence with a relative angle between the head and a direction of movement of the disk.
摘要翻译：一种磁盘装置，包括：磁盘，其将数据作为磁性信息保存在磁记录膜上; 执行写入和读取磁信息的头部; 旋转致动器，用于沿着盘的径向方向移动头部; 头部中的多个热元件以局部加热盘; 磁头中的一个写元件将磁场施加到磁盘上; 以及用于从所述多个加热元件中选择至少一个加热元件的装置，其中用于选择所述加热元件的装置从所述多个加热元件中选择至少一个加热元件，以使得由所述加热元件加热的区域的中心线，以及由写入元件产生的磁场的位置的中心线对应于磁头与磁盘的移动方向之间的相对角度相对应。

39. 发明授权

US07426092B2 Magnetic head and magnetic disk storage apparatus mounting the head 失效
标题翻译：安装磁头的磁头和磁盘存储装置
公开(公告)号：US07426092B2
公开(公告)日：2008-09-16
申请号：US11173730
申请日：2005-06-30
申请人： Hiroshi Fukui , Masafumi Mochizuki , Kaori Suzuki
发明人： Hiroshi Fukui , Masafumi Mochizuki , Kaori Suzuki
IPC分类号： G11B5/127
CPC分类号： G11B5/127
摘要： Embodiments of the invention provide a magnetic head which prevents data on a recording medium from being erased even when a stray field is applied. In one embodiment, an auxiliary pole is sandwiched between a stray-field shield composed of a magnetic layer recessed from the air bearing surface and a main pole. The stray-field shield may be formed on the leading side of the auxiliary pole. A face of the stray-field shield on a medium side may be recessed from an air-bearing-surface of the magnetic head.
摘要翻译：本发明的实施例提供一种磁头，即使当施加杂散场时也防止记录介质上的数据被擦除。在一个实施例中，辅助极被夹在由空气支承表面凹入的磁性层和主极之间的杂散场屏蔽之间。杂散场屏蔽可以形成在辅助极的前导侧。介质侧的杂散屏蔽层的表面可以从磁头的空气轴承表面凹入。

40. 发明申请

US20070217066A1 Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using it 失效
标题翻译：薄膜垂直磁记录头，其制造工艺和使用它的磁盘驱动器
公开(公告)号：US20070217066A1
公开(公告)日：2007-09-20
申请号：US11802297
申请日：2007-05-22
申请人： Yoshiaki Kawato , Kazuhiro Nakamoto , Hiroyuki Hoshiya , Yasuyuki Okada , Masafumi Mochizuki
发明人： Yoshiaki Kawato , Kazuhiro Nakamoto , Hiroyuki Hoshiya , Yasuyuki Okada , Masafumi Mochizuki
IPC分类号： G11B5/127
CPC分类号： G11B5/3906 , G11B5/1278
摘要： Thin film perpendicular magnetic head with a narrow main pole capable of a high recording density in excess of 100 gigabits per square inch and generating a high magnetic recording field exceeding 10 kOe (oersted), while also modified to suppress remanent magnetic fields occurring immediately after writing operation. In a perpendicular magnetic head comprising a main pole, a return path for supplying a magnetic flux to that main pole, and an conductive coil for excitation of the main pole and return path, the main pole has a pole width of 200 nanometers or less, and a magnetic multilayer made up of a high saturation flux density layer and low saturation flux density layer, the low saturation flux density layer has a thickness within 0.5 to 5 nanometers, the high saturation flux density layer has a thickness from 10 to 50 nanometers for suppressing remanent magnetization and preventing erasing after writing by utilizing a closed magnetic domain structure in the pole.
摘要翻译：具有超过100吉比特/平方英寸的高记录密度的窄主极的薄膜垂直磁头，并产生超过10kOe（奥斯特）的高磁记录场，同时还被修改以抑制写入后立即发生的残留磁场操作。在包括主极，用于向该主极提供磁通的返回路径和用于激励主极返回路径的导电线圈的垂直磁头中，主极的极宽为200纳米以下，以及由高饱和磁通密度层和低饱和磁通密度层组成的磁性层，低饱和磁通密度层的厚度在0.5〜5纳米之间，高饱和磁通密度层的厚度为10〜50纳米，通过利用极中的闭合磁畴结构来抑制剩磁，并防止写入后的擦除。

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