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1. 发明申请

US20110249359A1 MAGNETIC HEAD HAVING AN ASYMMETRICAL SHAPE AND SYSTEMS THEREOF 有权
标题翻译：具有非对称形状的磁头及其系统
公开(公告)号：US20110249359A1
公开(公告)日：2011-10-13
申请号：US12756947
申请日：2010-04-08
申请人： Masafumi Mochizuki , Yohji Maruyama , Etoh Kimitoshi
发明人： Masafumi Mochizuki , Yohji Maruyama , Etoh Kimitoshi
IPC分类号： G11B21/02 , G11B5/127
CPC分类号： G11B5/1871 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315
摘要： A magnetic head, according to one embodiment, includes a main magnetic pole having a protruding portion such that a distance from a first side of a trailing edge of the main magnetic pole to a leading edge of the main magnetic pole is different from a distance from a second side of the trailing edge of the main magnetic pole to the leading edge of the main magnetic pole, an auxiliary magnetic pole, and a coil wound around a magnetic circuit, the magnetic circuit including the main magnetic pole and the auxiliary magnetic pole. In another embodiment, a disk drive system includes a magnetic storage medium, at least one magnetic head as described previously for writing to the magnetic medium, a slider for supporting the magnetic head, and a control unit coupled to the magnetic head for controlling operation of the magnetic head. Additional systems and heads are also presented.
摘要翻译：根据一个实施例的磁头包括具有突出部分的主磁极，使得从主磁极的后缘的第一侧到主磁极的前缘的距离不同于主磁极的后缘的第二面到主磁极的前缘，辅助磁极和缠绕在磁路上的线圈，磁路包括主磁极和辅助磁极。在另一个实施例中，磁盘驱动器系统包括磁存储介质，至少一个如前所述用于写入磁介质的磁头，用于支撑磁头的滑块和耦合到磁头的控制单元，用于控制磁头磁头。还提供了附加的系统和头。

2. 发明授权

US08223458B2 Magnetic head having an asymmetrical shape and systems thereof 有权
标题翻译：具有不对称形状的磁头及其系统
公开(公告)号：US08223458B2
公开(公告)日：2012-07-17
申请号：US12756947
申请日：2010-04-08
申请人： Masafumi Mochizuki , Yohji Maruyama , Etoh Kimitoshi
发明人： Masafumi Mochizuki , Yohji Maruyama , Etoh Kimitoshi
IPC分类号： G11B5/31
CPC分类号： G11B5/1871 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315
摘要： A magnetic head, according to one embodiment, includes a main magnetic pole having a protruding portion such that a distance from a first side of a trailing edge of the main magnetic pole to a leading edge of the main magnetic pole is different from a distance from a second side of the trailing edge of the main magnetic pole to the leading edge of the main magnetic pole, an auxiliary magnetic pole, and a coil wound around a magnetic circuit, the magnetic circuit including the main magnetic pole and the auxiliary magnetic pole. In another embodiment, a disk drive system includes a magnetic storage medium, at least one magnetic head as described previously for writing to the magnetic medium, a slider for supporting the magnetic head, and a control unit coupled to the magnetic head for controlling operation of the magnetic head. Additional systems and heads are also presented.
摘要翻译：根据一个实施例的磁头包括具有突出部分的主磁极，使得从主磁极的后缘的第一侧到主磁极的前缘的距离不同于主磁极的后缘的第二面到主磁极的前缘，辅助磁极和缠绕在磁路上的线圈，磁路包括主磁极和辅助磁极。在另一个实施例中，磁盘驱动器系统包括磁存储介质，至少一个如前所述用于写入磁介质的磁头，用于支撑磁头的滑块和耦合到磁头的控制单元，用于控制磁头磁头。还提供了附加的系统和头。

3. 发明申请

US20110141616A1 MAGNETIC RECORDING HEAD AND MAGNETIC DISK STORAGE DEVICE 审中-公开
标题翻译：磁记录头和磁盘储存装置
公开(公告)号：US20110141616A1
公开(公告)日：2011-06-16
申请号：US12965332
申请日：2010-12-10
申请人： Ikuya Tagawa , Masafumi Mochizuki , Yohji Maruyama
发明人： Ikuya Tagawa , Masafumi Mochizuki , Yohji Maruyama
IPC分类号： G11B5/265 , G11B21/02
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： In one embodiment, a magnetic recording head includes a main magnetic pole adapted for generating a magnetic field for recording information on a magnetic disk, a magnetic shield member adapted for suppressing spreading of a magnetic field output from the main magnetic pole through a non-magnetic insulation member, a side top gap, a side bottom gap, and a trailing gap. The side top gap is less than two times the trailing gap, the side bottom gap is larger than the side top gap, and the magnetic shield member is positioned on a sliding surface of the magnetic recording head and includes a trailing portion positioned adjacent the trailing gap in the trailing direction and at least one side portion positioned adjacent the side bottom gap in the cross-track direction. Other heads and systems are also presented according to various embodiments.
摘要翻译：在一个实施例中，磁记录头包括适于产生用于在磁盘上记录信息的磁场的主磁极，适用于抑制从主磁极输出的磁场扩散通过非磁性的磁屏蔽部件绝缘构件，侧顶间隙，侧底间隙和拖尾间隙。侧顶间隙小于尾间隙的两倍，侧底间隙大于侧顶间隙，并且磁屏蔽构件位于磁记录头的滑动表面上，并且包括位于相邻尾部的后部在后沿方向上的间隙和在横向轨道方向上邻近侧底部间隙定位的至少一个侧部。根据各种实施例还提供了其他头和系统。

4. 发明授权

US08373940B2 Magnetic head having a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer 有权
标题翻译：具有用于产生电磁场并向磁记录层施加能量的面对电极对的磁头
公开(公告)号：US08373940B2
公开(公告)日：2013-02-12
申请号：US12547964
申请日：2009-08-26
申请人： Yohji Maruyama , Nobumasa Nishiyama , Masafumi Mochizuki
发明人： Yohji Maruyama , Nobumasa Nishiyama , Masafumi Mochizuki
IPC分类号： G11B5/02 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/314 , G11B2005/001
摘要： According to one embodiment, a magnetic head for recording magnetic data by changing the magnetization direction of a magnetic recording layer of a magnetic medium comprises a magnetic pole for generating a magnetic field to change the magnetization direction of the magnetic recording layer, and a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer to assist the change of the magnetization direction of the magnetic recording layer caused by the magnetic field from the magnetic pole. Other embodiments are also presented.
摘要翻译：根据一个实施例，用于通过改变磁介质的磁记录层的磁化方向来记录磁数据的磁头包括用于产生磁场以改变磁记录层的磁化方向的磁极和面对电极用于产生电磁场并向磁记录层施加能量以帮助由磁极引起的磁场引起的磁记录层的磁化方向的改变。还提出了其他实施例。

5. 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。

6. 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。

7. 发明授权

US08270111B2 Perpendicular magnetic recording head 失效
标题翻译：垂直磁记录头
公开(公告)号：US08270111B2
公开(公告)日：2012-09-18
申请号：US11389216
申请日：2006-03-24
申请人： Tomohiro Okada , Masafumi Mochizuki , Hisashi Kimura , Wataru Kimura
发明人： Tomohiro Okada , Masafumi Mochizuki , Hisashi Kimura , Wataru Kimura
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315
摘要： Embodiments of the invention provide a perpendicular magnetic recording head that causes the difference between a physical track width and an effective track width to be small. Sides of a main pole are made concave with the concave vertex on each side located close to a trailing edge of the main pole.
摘要翻译：本发明的实施例提供一种使物理轨道宽度和有效轨道宽度之间的差小的垂直磁记录头。主极的侧面被制成凹面，每个侧面上的凹顶点靠近主极的后缘。

8. 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。

9. 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。

10. 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。

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