公开(公告)号：US20130057983A1

公开(公告)日：2013-03-07

申请号：US13226435

申请日：2011-09-06

申请人： Hiroyasu Tanabe ,  Hiroyasu Masuda

发明人： Hiroyasu Tanabe ,  Hiroyasu Masuda

IPC分类号： G11B5/127 ,  G11B5/60

CPC分类号： G11B5/012 ,  G11B5/1278 ,  G11B5/3146 ,  G11B2005/0024

摘要： A magnetic write head for magnetic data recording that incorporates a novel magnetic oscillation generator stricture that sets up a magnetic oscillation in the magnetic media for improving writing and that also narrows the write width and reduces adjacent track interference by suppressing writing in regions outside of the desired data track. The magnetic oscillation generating structure includes a centrally disposed magnetic assist element that generates an oscillating magnetic field that oscillates in a direction that will assist the write pole in writing to the magnetic medium. The magnetic oscillation generating structure also includes first and second magnetic non-assist elements at either side of the assist element. The non-assist elements generate a magnetic field that oscillates in a second direction that is opposite to the first direction, which counteracts the magnetic write assist from the centrally disposed magnetic assist element and acts to suppress writing in these side regions.

摘要翻译： 一种用于磁数据记录的磁写头，其包含新的磁振荡发生器狭窄，其在磁介质中建立磁振荡以改善写入，并且还通过抑制在期望的外部区域中的写入来减小写入宽度并减少相邻轨道干扰 数据轨 磁振荡产生结构包括一个居中设置的磁辅助元件，该磁辅助元件产生一个振荡磁场，该振荡磁场在辅助磁极写入磁介质的方向上振荡。 磁振荡产生结构还包括辅助元件两侧的第一和第二磁性非辅助元件。 非辅助元件产生在与第一方向相反的第二方向上振荡的磁场，其抵消来自中心布置的磁辅助元件的磁写入辅助，并且用于抑制这些侧区域中的写入。

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。

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。

公开(公告)号：US20130335856A1

公开(公告)日：2013-12-19

申请号：US13523657

申请日：2012-06-14

申请人： Hiroyasu Tanabe ,  Hideki Zaitsu ,  Kyo Akagi ,  Naoto Ito

发明人： Hiroyasu Tanabe ,  Hideki Zaitsu ,  Kyo Akagi ,  Naoto Ito

IPC分类号： G11B21/02 ,  G11B5/012

CPC分类号： G11B19/04 ,  G11B5/012 ,  G11B5/5565 ,  G11B5/59627 ,  G11B2005/0021

摘要： SMR disk drives are described that adjust track pitch or magnetic write width to compensate for external temperature effects. In one embodiment track pitch is increased when the media temperature increases. The temperature of magnetic media during write operations can be determined from the drives' temperature sensor. In other embodiments track pitch is adjusted based on the magnetic write width (MWW) which is determined from read-back testing of previously written data tracks. In an alternative embodiment, the width of the MWW is adjusted instead of the track pitch. The various factors that affect the MWW that can be used to increase or decrease the MWW, including write current characteristics and when available thermal-assistance parameters.

摘要翻译： 描述了SMR磁盘驱动器，其调节磁道间距或磁写入宽度以补偿外部温度效应。 在一个实施例中，当介质温度升高时，轨道间距增加。 写入操作期间磁介质的温度可以由驱动器的温度传感器确定。 在其他实施例中，基于从先前写入的数据轨道的回读测试确定的磁写入宽度（MWW）来调整轨道间距。 在替代实施例中，调整MWW的宽度而不是轨道间距。 影响MWW的各种因素可用于增加或减少MWW，包括写入电流特性和可用的热辅助参数。

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。

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。

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。

公开(公告)号：US20110069414A1

公开(公告)日：2011-03-24

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

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，其中彼此相邻的轨迹磁分离，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。

公开(公告)号：US06704775B1

公开(公告)日：2004-03-09

申请号：US09469112

申请日：1999-12-21

申请人： Kazutaka Sato ,  Hiroyasu Tanabe

发明人： Kazutaka Sato ,  Hiroyasu Tanabe

IPC分类号： G06F1516

CPC分类号： H04N1/32406 ,  H04N1/00209 ,  H04N1/324 ,  H04N1/32432 ,  H04N1/32438

摘要： A server of a facsimile information managing system receives facsimile image information, stores it, generates index information, which refers to its storage location, transmits it, accepts a request for specifying the storage location, and transmits facsimile image information stored in the specified storage location, a relay relays index information, the request for specifying the storage location of the facsimile image and facsimile image information, a client accepts an input for selecting the storage location of facsimile image information from the index information, transmits the request for specifying the selected storage location to the server, receives facsimile image information transmitted by the server, and displays it. An HTML format is used in index information, a GIF format is used in facsimile image information, and a WWW browser is used in processing of client.

摘要翻译： 传真信息管理系统的服务器接收传真图像信息，存储它，生成参考其存储位置的索引信息，发送它，接受指定存储位置的请求，并发送存储在指定存储位置的传真图像信息 继电器中继索引信息，用于指定传真图像的存储位置的请求和传真图像信息，客户端接受用于从索引信息中选择传真图像信息的存储位置的输入，发送用于指定所选存储的请求 位置到服务器，接收由服务器发送的传真图像信息，并显示它。 在索引信息中使用HTML格式，在传真图像信息中使用GIF格式，在处理客户端时使用WWW浏览器。

公开(公告)号：US08634163B2

公开(公告)日：2014-01-21

申请号：US13191563

申请日：2011-07-27

申请人： Hiroyasu Tanabe ,  Masafumi Mochizuki

发明人： Hiroyasu Tanabe ,  Masafumi Mochizuki

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B2005/0024

摘要： In one embodiment, a magnetic head includes a main magnetic pole, a first MAMR element positioned above and wider than the main magnetic pole that is positioned to extend beyond sides of the main magnetic pole in a track width direction, a spin-rectifying-current-pinned-magnetic layer, a magnetic interlayer, a FGL, a magnetic-zone-control layer, and a second MAMR element that is wider than the main magnetic pole and is positioned to extend beyond sides of the main magnetic pole in the track width direction positioned above the first MAMR element, and a trailing shield positioned above the second MAMR element, wherein the main magnetic pole is adapted for producing a high-frequency magnetic field comprising oscillating microwaves, wherein during a writing operation, current is applied to the first and second MAMR elements to produce magnetic fields which oppose bit-switching in the magnetic medium to avoid adjacent track bit reversal.

摘要翻译： 在一个实施例中，磁头包括主磁极，位于主磁极上方并且宽于主磁极的第一MAMR元件，主磁极定位成在磁道宽度方向上延伸超过主磁极的侧面，自旋电流 磁性层，磁性中间层，FGL，磁区控制层和比主磁极宽的第二MAMR元件，并且定位成在磁道宽度上延伸超过主磁极的侧面 位于第一MAMR元件上方的方向，以及位于第二MAMR元件上方的后屏蔽，其中主磁极适于产生包括振荡微波的高频磁场，其中在写入操作期间，将电流施加到第一MAMR元件 和第二MAMR元件，以产生与磁介质中的位切换相对的磁场，以避免相邻轨道位反转。