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1. 发明授权

US08248893B2 Energy-assisted magnetic-recording head having a magnetic-recording assistance element disposed to lower magnetic-recording field for reversing magnetization in a magnetic-recording disk 有权
标题翻译：能量辅助磁记录头具有磁记录辅助元件，该磁记录辅助元件设置成降低用于使磁记录盘中的磁化反转的磁记录场
公开(公告)号：US08248893B2
公开(公告)日：2012-08-21
申请号：US12573069
申请日：2009-10-02
申请人： Masafumi Mochizuki , Hiroyasu Tanabe , Hideki Zaitsu , Hideaki Maeda
发明人： Masafumi Mochizuki , Hiroyasu Tanabe , Hideki Zaitsu , Hideaki Maeda
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A head-slider configured to fly in proximity to a recording surface of a magnetic-recording disk. The head-slider includes a write element including a main pole configured to generate a magnetic-recording field from a pole tip of the main pole in a first localized portion of the magnetic-recording disk. The head-slider also includes a magnetic-recording assistance element configured to provide energy to a second localized portion of the magnetic-recording disk in order to increase reversibility of a magnetization in a first localized portion of the magnetic-recording disk. A width of the pole tip of the main pole on a leading-edge side is wider than a width of the pole tip of the main pole on a trailing-edge side.
摘要翻译：头部滑动器，其构造成在磁记录盘的记录表面附近飞行。磁头滑块包括写入元件，该写入元件包括主磁极，该主极被配置为在磁记录盘的第一局部部分中从主极的极尖产生磁记录场。磁头滑动器还包括磁记录辅助元件，其被配置为向磁记录盘的第二局部部分提供能量，以增加磁记录盘的第一局部部分中的磁化的可逆性。前缘侧的主极的极尖的宽度比后缘侧的主极的极尖的宽度宽。

2. 发明授权

US07969678B2 Magnetic disk drive having assisted recording and methods of recording data thereto 有权
标题翻译：辅助记录的磁盘驱动器和记录数据的方法
公开(公告)号：US07969678B2
公开(公告)日：2011-06-28
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。

3. 发明授权

US08018672B2 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：US08018672B2
公开(公告)日：2011-09-13
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： G11B5/02
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。

4. 发明申请

US20110096638A1 HEAD-SLIDER INCLUDING A MAGNETIC-RECORDING ASSISTANCE ELEMENT, HEAD-ARM ASSEMBLY INCLUDING THE HEAD-SLIDER, AND HARD-DISK DRIVE INCLUDING THE HEAD-ARM ASSEMBLY 有权
标题翻译：包括磁记录辅助元件的头部滑块，包括头部滑块的头盔组件和包括头盔组件的硬盘驱动器
公开(公告)号：US20110096638A1
公开(公告)日：2011-04-28
申请号：US12573069
申请日：2009-10-02
申请人： Masafumi Mochizuki , Hiroyasu Tanabe , Hideki Zaitsu , Hideaki Maeda
发明人： Masafumi Mochizuki , Hiroyasu Tanabe , Hideki Zaitsu , Hideaki Maeda
IPC分类号： G11B11/24 , G11B5/02
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A head-slider configured to fly in proximity to a recording surface of a magnetic-recording disk. The head-slider includes a write element including a main pole configured to generate a magnetic-recording field from a pole tip of the main pole in a first localized portion of the magnetic-recording disk. The head-slider also includes a magnetic-recording assistance element configured to provide energy to a second localized portion of the magnetic-recording disk in order to increase reversibility of a magnetization in a first localized portion of the magnetic-recording disk. A width of the pole tip of the main pole on a leading-edge side is wider than a width of the pole tip of the main pole on a trailing-edge side.
摘要翻译：头部滑动器，其构造成在磁记录盘的记录表面附近飞行。磁头滑块包括写入元件，该写入元件包括主磁极，该主极被配置为在磁记录盘的第一局部部分中从主极的极尖产生磁记录场。磁头滑动器还包括磁记录辅助元件，其被配置为向磁记录盘的第二局部部分提供能量，以增加磁记录盘的第一局部部分中的磁化的可逆性。前缘侧的主极的极尖的宽度比后缘侧的主极的极尖的宽度宽。

5. 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。

6. 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。

7. 发明授权

US08717708B2 Magnetic head and magnetic disk apparatus 有权
标题翻译：磁头和磁盘设备
公开(公告)号：US08717708B2
公开(公告)日：2014-05-06
申请号：US12315523
申请日：2008-12-03
申请人： Mao Nishiyama , Shuji Nishida , Hideaki Maeda , Masafumi Mochizuki
发明人： Mao Nishiyama , Shuji Nishida , Hideaki Maeda , Masafumi Mochizuki
IPC分类号： G11B5/127
CPC分类号： G11B5/3166 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3169 , Y10T428/1171 , Y10T428/1193
摘要： Embodiments of the present invention provide a magnetic head for perpendicular magnetic recording, and a magnetic disk apparatus capable of preventing data erasure caused by alignment marks. In an embodiment, the magnetic head includes a head element including at least a main pole having a pole face on a flying surface and an auxiliary pole; alignment marks made of a magnetic material and used to detect the amount of lapping work when lapping the pole face of the main pole; and members made of a magnetic material, continuously extending in either direction with respect to the position of the main pole from within the alignment marks outward at least beyond the alignment marks.
摘要翻译：本发明的实施例提供一种用于垂直磁记录的磁头，以及能够防止由对准标记引起的数据擦除的磁盘装置。在一个实施例中，磁头包括头元件，头元件至少包括在飞行表面上具有极面的主极和辅助极; 由磁性材料制成的对准标记，用于在研磨主极的极面时检测研磨作业的数量; 以及由磁性材料制成的构件，其在相对于主极的位置的任一方向上从对准标记内部至少超过对准标记向外延伸。

8. 发明授权

US08107180B2 Hard-disk drive and control method for magnetic recording on a patterned medium of the hard-disk drive 有权
标题翻译：用于在硬盘驱动器的图案化介质上进行磁记录的硬盘驱动器和控制方法
公开(公告)号：US08107180B2
公开(公告)日：2012-01-31
申请号：US12505085
申请日：2009-07-17
申请人： Shuji Nishida , Yasutaka Nishida , Masafumi Mochizuki , Hideaki Maeda
发明人： Shuji Nishida , Yasutaka Nishida , Masafumi Mochizuki , Hideaki Maeda
IPC分类号： G11B5/09 , G11B27/36
CPC分类号： G11B5/09 , B82Y10/00 , G11B5/59616 , G11B5/743 , G11B20/10009 , G11B20/10435 , G11B20/1879 , G11B2220/2516 , G11B2220/252
摘要： A hard-disk drive. The hard-disk drive includes a magnetic-recording disk including tracks on which a plurality of patterned bit-cells that are isolated magnetically are aligned at predetermined alignment pitches. The hard-disk drive includes a magnetic-recording head which is configured to follow tracks, and to write and to read data. The hard-disk drive includes a signal-processing unit which is configured to generate a recording signal based on a write-clock signal with cycles corresponding to alignment pitches of patterned bit-cells, and to output a recording signal. The hard-disk drive includes a phase-detecting unit which is configured to detect a phase of the write-clock signal when the magnetic-recording head reaches an end point of a predetermined range. The hard disk drive includes a determination-processing unit which is configured to determine success of data writing based on a difference between an expected value and a detected value of the phase of the write-clock signal.
摘要翻译：硬盘驱动器。硬盘驱动器包括磁记录盘，磁盘包括轨道，磁道上分离出多个图案化的位单元，以预定的对准间距排列。硬盘驱动器包括磁记录头，其被配置为跟随轨道，并且写入和读取数据。硬盘驱动器包括信号处理单元，其被配置为基于具有对应于图案化位单元的对准间距的周期的写时钟信号产生记录信号，并输出记录信号。硬盘驱动器包括相位检测单元，其被配置为当磁记录头达到预定范围的终点时检测写时钟信号的相位。硬盘驱动器包括确定处理单元，其被配置为基于期望值和写入时钟信号的相位的检测值之间的差来确定数据写入的成功。

9. 发明申请

US20090161263A1 Magnetic head and magnetic disk apparatus 有权
标题翻译：磁头和磁盘设备
公开(公告)号：US20090161263A1
公开(公告)日：2009-06-25
申请号：US12315523
申请日：2008-12-03
申请人： Mao Nishiyama , Shuji Nishida , Hideaki Maeda , Masafumi Mochizuki
发明人： Mao Nishiyama , Shuji Nishida , Hideaki Maeda , Masafumi Mochizuki
IPC分类号： G11B5/33
CPC分类号： G11B5/3166 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3169 , Y10T428/1171 , Y10T428/1193
摘要： Embodiments of the present invention provide a magnetic head for perpendicular magnetic recording, and a magnetic disk apparatus capable of preventing data erasure caused by alignment marks. In an embodiment, the magnetic head includes a head element including at least a main pole having a pole face on a flying surface and an auxiliary pole; alignment marks made of a magnetic material and used to detect the amount of lapping work when lapping the pole face of the main pole; and members made of a magnetic material, continuously extending in either direction with respect to the position of the main pole from within the alignment marks outward at least beyond the alignment marks.
摘要翻译：本发明的实施例提供一种用于垂直磁记录的磁头，以及能够防止由对准标记引起的数据擦除的磁盘装置。在一个实施例中，磁头包括头元件，头元件至少包括在飞行表面上具有极面的主极和辅助极; 由磁性材料制成的对准标记，用于在研磨主极的极面时检测研磨作业的数量; 以及由磁性材料制成的构件，其在相对于主极的位置的任一方向上从对准标记内部至少超过对准标记向外延伸。

10. 发明授权

US08089720B2 Hard-disk drive 有权
标题翻译：硬盘驱动器
公开(公告)号：US08089720B2
公开(公告)日：2012-01-03
申请号：US12537213
申请日：2009-08-06
申请人： Yosuke Urakami , Jun Ohno , Hideaki Maeda , Hiroyasu Tanabe
发明人： Yosuke Urakami , Jun Ohno , Hideaki Maeda , Hiroyasu Tanabe
IPC分类号： G11B5/55 , G11B5/596
CPC分类号： G11B5/012 , B82Y10/00 , G11B5/743 , G11B5/82
摘要： A hard-disk drive. The hard-disk drive includes a magnetic-recording disk in which tracks adjacent to each other are magnetically separated, a spindle motor which drives the magnetic-recording disk, a magnetic-recording head equipped with write element and read element, an actuator for positioning the magnetic-recording head on a predetermined track on the magnetic-recording disk, and a control unit. The control unit is configured to store information about an over-write-only track that is provided for a plurality of tracks including n consecutive tracks in at least a partial radial area of the magnetic-recording disk and an offset amount. In a radial area of the magnetic disk where the over-write-only track is located, the control unit is configured to record with an offset by an offset amount from a center of a track toward the over-write-only track with respect to n−1 tracks of the plurality of n tracks, excluding the over-write-only track.
摘要翻译：硬盘驱动器。硬盘驱动器包括磁记录盘，其中彼此相邻的轨道磁分离，驱动磁记录盘的主轴电机，配备有写元件和读元件的磁记录头，用于定位的致动器在磁记录盘上的预定轨道上的磁记录头，以及控制单元。控制单元被配置为存储关于在磁记录盘的至少部分径向区域中包括n个连续轨道的多个轨道提供的仅写入磁道的信息和偏移量。在位于仅写入磁道的磁盘的径向区域中，控制单元被配置为以偏移量从轨道的中心朝向仅写入磁道的偏移量相对于除了仅写入磁道之外的多个n个磁道的n-1个磁道。

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