公开(公告)号：US20090300907A1

公开(公告)日：2009-12-10

申请号：US12315140

申请日：2008-11-26

申请人： Kyo Akagi ,  Kensuke Ishiwata ,  Takashi Kouno ,  Atsushi Takeichi ,  Kenji Kuroki ,  Toshihiko Iwaisako

发明人： Kyo Akagi ,  Kensuke Ishiwata ,  Takashi Kouno ,  Atsushi Takeichi ,  Kenji Kuroki ,  Toshihiko Iwaisako

IPC分类号： G11B5/127

CPC分类号： G11B33/148 ,  G11B25/043 ,  G11B33/1486 ,  Y10T29/53165

摘要： Embodiments of the present invention provide a method for manufacturing a magnetic disk unit, the method permitting easy and efficient introduction of a low-density gas into the enclosure. According to one embodiment, an enclosure of the magnetic disk unit has a gas inlet and a gas outlet, each of which is provided with a filter. When the enclosure is filled with helium, the mass flow rate of helium being supplied to the gas inlet is detected and the mass flow rate of helium being supplied to the gas inlet is controlled according to the thus detected mass flow rate of helium.

摘要翻译： 本发明的实施例提供一种用于制造磁盘单元的方法，该方法允许将低密度气体容易且有效地引入到外壳中。 根据一个实施例，磁盘单元的外壳具有气体入口和气体出口，每个气体出口设置有过滤器。 当外壳填充有氦时，检测到供给到气体入口的氦的质量流量，并根据所检测到的氦质量流量来控制供给气体入口的氦的质量流量。

公开(公告)号：US07184236B2

公开(公告)日：2007-02-27

申请号：US10944845

申请日：2004-09-21

申请人： Takehiko Hamaguchi ,  Kyo Akagi ,  Hisashi Takano ,  Takayuki Ichihara

发明人： Takehiko Hamaguchi ,  Kyo Akagi ,  Hisashi Takano ,  Takayuki Ichihara

IPC分类号： G11B15/04 ,  G11B19/04

CPC分类号： G11B20/1252 ,  G11B5/012 ,  G11B5/5582 ,  G11B5/59611 ,  G11B5/59655 ,  G11B5/59694 ,  G11B20/10 ,  G11B27/3027 ,  G11B2020/1232 ,  G11B2020/1238 ,  G11B2020/1267 ,  G11B2020/1287 ,  G11B2220/20 ,  G11B2220/2516

摘要： A hard disk drive and magnetic medium including a servo area, a data area divided into a plurality of sector blocks and at least one micro-servo area disposed between two sector blocks. There may be a micro-servo area immediately preceding each of the plurality of sector blocks. The micro-servo areas include an address mark and a track parity check code that allow the detection of an external shock that causes the recording (write) head to skip to an adjacent track in the hard disk medium. The micro-servo area is smaller than the servo areas, and various numbers of different track parity check codes can be used for different resolution of shock detection. An acceleration sensor may also be provided to detect larger external shocks. By detecting various external shocks with improved accuracy, and aborting the recording operation of data if an external shock is detected, the corruption of data in adjacent tracks is substantially reduced to improve disk drive performance.

摘要翻译： 一种硬盘驱动器和磁介质，包括伺服区域，分成多个扇区块的数据区域和设置在两个扇区块之间的至少一个微伺服区域。 可能存在紧邻在多个扇区块中的每一个之前的微伺服区域。 微伺服区域包括地址标记和轨道奇偶校验码，其允许检测导致记录（写入）头跳到硬盘介质中的相邻轨道的外部冲击。 微伺服区域小于伺服区域，各种数量的不同轨道奇偶校验码可用于不同的震动检测分辨率。 还可以提供加速度传感器来检测更大的外部冲击。 通过以更高的精度检测各种外部冲击，并且如果检测到外部冲击则中止数据的记录操作，则相当的磁道中的数据的损坏被大大减少以提高磁盘驱动器的性能。

公开(公告)号：US20060152862A1

公开(公告)日：2006-07-13

申请号：US11371244

申请日：2006-03-09

申请人： Ryoichi Nakatani ,  Masahiro Kitada ,  Naoki Koyama ,  Isamu Yuito ,  Hisashi Takano ,  Eijin Moriwaki ,  Mikio Suzuki ,  Masaaki Futamoto ,  Fumio Kugiya ,  Yoshibumi Matsuda ,  Kazuo Shiiki ,  Yoshinori Miyamura ,  Kyo Akagi ,  Takeshi Nakao ,  Hirotsugu Fukuoka ,  Takayuki Munemoto ,  Tokuho Takagaki ,  Toshio Kobayashi ,  Hideo Tanabe ,  Noboru Shimizu

发明人： Ryoichi Nakatani ,  Masahiro Kitada ,  Naoki Koyama ,  Isamu Yuito ,  Hisashi Takano ,  Eijin Moriwaki ,  Mikio Suzuki ,  Masaaki Futamoto ,  Fumio Kugiya ,  Yoshibumi Matsuda ,  Kazuo Shiiki ,  Yoshinori Miyamura ,  Kyo Akagi ,  Takeshi Nakao ,  Hirotsugu Fukuoka ,  Takayuki Munemoto ,  Tokuho Takagaki ,  Toshio Kobayashi ,  Hideo Tanabe ,  Noboru Shimizu

IPC分类号： G11B5/33

CPC分类号： G11B5/398 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3929 ,  G11B5/3967 ,  G11B2005/0002 ,  G11B2005/0016 ,  G11B2005/3996 ,  H01F10/324 ,  H01F10/3254 ,  H01F10/3268 ,  H01L43/08 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49155

摘要： The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semiconductor or an antiferromagnetic material against the magnetic layers, and the magnetoresistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that a current flows in the intermediate layer. The film surfaces of all the magnetic layers constituting the magnetoresistance effect element are opposed substantially at right angles to the recording surface of a magnetic recording medium. Therefore, the area of the magnetic layers facing the recording surface of the magnetic recording medium can be extremely reduced, and thus the magnetic field from a very narrow region of the high-density recorded magnetic recording medium can be detected by the current which has a tunneling characteristic and passes through the intermediate layer.

摘要翻译： 磁阻效应元件是至少具有磁性层和抵抗磁性层的绝缘材料，半导体或反铁磁材料的中间层的多层结构，并且磁阻效应元件至少在相对的磁性层上形成端子， 从而电流在中间层中流动。 构成磁阻效应元件的所有磁性层的膜表面基本上与磁记录介质的记录表面成直角相对。 因此，能够极大地降低与磁记录介质的记录面对置的磁性层的面积，因此能够通过电流检测来自高密度记录磁记录介质的非常窄的区域的磁场 穿透特性，穿过中间层。

公开(公告)号：US06862153B2

公开(公告)日：2005-03-01

申请号：US09901889

申请日：2001-07-11

申请人： Kyo Akagi ,  Takashi Yamaguchi ,  Koki Uefune ,  Motoyasu Tsunoda ,  Atsushi Saito

发明人： Kyo Akagi ,  Takashi Yamaguchi ,  Koki Uefune ,  Motoyasu Tsunoda ,  Atsushi Saito

IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B17/04 ,  G11B19/04 ,  G11B29/02

CPC分类号： G11B5/012 ,  G11B17/0402 ,  G11B17/0407 ,  G11B19/04 ,  G11B2005/001

摘要： A magnetic disk apparatus has: a magnetic disk having a magnetic film formed on a substrate; a spindle motor for rotating the magnetic disk; a magnetic head for writing/reading information on/from the magnetic disk; a supporting member for supporting the magnetic head; a driving mechanism for moving the magnetic head to a predetermined position on the magnetic disk; a magnetic writing/reading circuit for enabling the magnetic head to write/read information on/from the magnetic disk; an interface for sending/receiving signals for controlling the information to/from another information processing device, a device for detecting whether or not the magnetic disk apparatus is in operation; and mechanism for latching movable part of the magnetic disk apparatus on the basis of detection result of the detecting device.

摘要翻译： 磁盘装置具有：在基板上形成有磁性膜的磁盘; 用于旋转磁盘的主轴电机; 用于在/从磁盘读/写信息的磁头; 用于支撑磁头的支撑构件; 用于将磁头移动到磁盘上的预定位置的驱动机构; 用于使磁头能够从/从磁盘写入/读取信息的磁性写入/读取电路; 用于发送/接收用于将信息控制到另一个信息处理装置的信号的接口，用于检测磁盘装置是否正在运行的装置; 以及基于检测装置的检测结果来锁定磁盘装置的可动部的机构。

公开(公告)号：US06483660B1

公开(公告)日：2002-11-19

申请号：US08992083

申请日：1997-12-17

申请人： Kyo Akagi ,  Toshihisa Tsukada ,  Yoshihiro Shiroishi

发明人： Kyo Akagi ,  Toshihisa Tsukada ,  Yoshihiro Shiroishi

IPC分类号： G11B554

CPC分类号： G11B25/043

摘要： A magnetic disk unit of form factor size with a low power consumption, a short average seek time and a high performance. The unit includes at least two spindles for supporting and rotating magnetic disks. Specifically, two 1.3-inch disks, three 1.0-inch disks or four 0.7-inch disks are arranged in a housing originally intended for a 1.8-inch magnetic disk. The unit further includes a device for writing and reading information while selecting a spindle. The card-type disk unit thus can be reduced in thickness, with a smaller power consumption for starting the disk rotation and further with an improved average seek velocity.

摘要翻译： 具有功耗低，平均寻道时间短，性能好的外形尺寸的磁盘单元。 该单元包括用于支撑和旋转磁盘的至少两个主轴。 具体来说，两个1.3英寸磁盘，三个1.0英寸磁盘或四个0.7英寸磁盘布置在原来用于1.8英寸磁盘的外壳中。 该单元还包括用于在选择主轴时写入和读取信息的装置。 因此，卡型盘单元的厚度可以减小，具有较小的功率消耗用于启动盘旋转，并且还具有改进的平均寻道速度。

公开(公告)号：US5606472A

公开(公告)日：1997-02-25

申请号：US435716

申请日：1995-05-05

申请人： Kyo Akagi ,  Yasuhiro Kato ,  Masaaki Matsumoto ,  Akira Iida ,  Yong-kweon Kim

发明人： Kyo Akagi ,  Yasuhiro Kato ,  Masaaki Matsumoto ,  Akira Iida ,  Yong-kweon Kim

IPC分类号： G11B5/55 ,  G11B19/20 ,  G11B25/04 ,  G11B5/012

CPC分类号： G11B19/2009 ,  G11B25/043 ,  G11B5/5521

摘要： A disk unit has a recording medium disk; a head for reading and writing information on said disk; a first actuator for moving said head relative to said disk, said first actuator having no bearing structure; a second actuator for rotating said disk, said second actuator having no bearing structure; and a housing for housing said disk, said head, said first actuator and said second actuator.

摘要翻译： 盘单元具有记录介质盘; 用于在所述盘上读取和写入信息的头部; 用于相对于所述盘移动所述头部的第一致动器，所述第一致动器不具有轴承结构; 用于旋转所述盘的第二致动器，所述第二致动器不具有轴承结构; 以及用于容纳所述盘，所述头，所述第一致动器和所述第二致动器的壳体。

公开(公告)号：US08482877B2

公开(公告)日：2013-07-09

申请号：US12079474

申请日：2008-03-26

申请人： Kyo Akagi ,  Hiroshi Ikekame

发明人： Kyo Akagi ,  Hiroshi Ikekame

IPC分类号： G11B5/596

CPC分类号： G11B5/59688 ,  G11B5/59633

摘要： Embodiments of the present invention provide a servo write medium, method and device for writing servo information by self servo write on the servo region formed from a flat section of the discrete track medium. The recording or write device yields the same servo characteristics as magnetic servo writing, is superior to pre-patterned servo, and delivers a greater write storage capacity with an even higher recording density. According to one embodiment, a self servo write method is used to write servo information on a flat section formed on a patterned disk on which discrete tracks are formed. Timing detection patterns (grooves) required for controlling the timing along the periphery during self servo write are formed by pre-patterning on the disk, and RRO error signals used for positioning control along the radius are written in the servo information on a flat section of the disk.

摘要翻译： 本发明的实施例提供一种伺服写入介质，用于通过自伺服写入在由离散轨道介质的平坦部分形成的伺服区域上写入伺服信息的方法和装置。 记录或写入设备产生与伺服写入相同的伺服特性，优于预先构图的伺服，并以更高的记录密度提供更大的写入存储容量。 根据一个实施例，使用自伺服写入方法将伺服信息写入形成在其上形成有分立轨道的图案化盘上的平坦部分上。 在自伺服写入期间通过预图案化形成用于在自伺服写入期间控制沿周边的定时所需的定时检测模式（凹槽），并且用于沿半径的定位控制的RRO误差信号被写入伺服信息 磁盘。

公开(公告)号：US20080239906A1

公开(公告)日：2008-10-02

申请号：US12079474

申请日：2008-03-26

申请人： Kyo Akagi ,  Hiroshi Ikekame

发明人： Kyo Akagi ,  Hiroshi Ikekame

IPC分类号： G11B5/58

CPC分类号： G11B5/59688 ,  G11B5/59633

摘要： Embodiments of the present invention provide a servo write medium, method and device for writing servo information by self servo write on the servo region formed from a flat section of the discrete track medium. The recording or write device yields the same servo characteristics as magnetic servo writing, is superior to pre-patterned servo, and delivers a greater write storage capacity with an even higher recording density. According to one embodiment, a self servo write method is used to write servo information on a flat section formed on a patterned disk on which discrete tracks are formed. Timing detection patterns (grooves) required for controlling the timing along the periphery during self servo write are formed by pre-patterning on the disk, and RRO error signals used for positioning control along the radius are written in the servo information on a flat section of the disk.

摘要翻译： 本发明的实施例提供一种伺服写入介质，用于通过自伺服写入在由离散轨道介质的平坦部分形成的伺服区域上写入伺服信息的方法和装置。 记录或写入设备产生与伺服写入相同的伺服特性，优于预先构图的伺服，并以更高的记录密度提供更大的写入存储容量。 根据一个实施例，使用自伺服写入方法将伺服信息写入形成在其上形成有分立轨道的图案化盘上的平坦部分上。 在自伺服写入期间通过预图案化形成用于在自伺服写入期间控制沿周边的定时所需的定时检测模式（凹槽），并且用于沿半径的定位控制的RRO误差信号被写入伺服信息 磁盘。

公开(公告)号：US20070258162A1

公开(公告)日：2007-11-08

申请号：US11786446

申请日：2007-04-10

申请人： Takahiro Nakagawa ,  Toshiaki Satoh ,  Hiroshi Fukuyama ,  Kyo Akagi

发明人： Takahiro Nakagawa ,  Toshiaki Satoh ,  Hiroshi Fukuyama ,  Kyo Akagi

IPC分类号： G11B5/03 ,  G11B5/596

CPC分类号： G11B5/024

摘要： Embodiments in accordance with the present invention erase a desired area on a recording surface of disk or disk drive apparatus. According to an embodiment, a hard disk drive (HDD) performs erase on a recording surface by moving a head element unit at one-half a servo track pitch with reference to a servo address. Before actual erase is started on the recording surface, the HDD generates a management table configured based on servo addresses from a management table configured based on data tracks. At an erase process, the HDD sets parameters in accordance with the zone and skips a management area with reference to this management table based on the servo addresses.

摘要翻译： 根据本发明的实施例擦除盘或盘驱动装置的记录表面上的期望区域。 根据一个实施例，硬盘驱动器（HDD）参照伺服地址以一半的伺服磁道间距移动磁头元件单元，在记录表面上进行擦除。 在记录表面上开始实际擦除之前，HDD根据基于数据轨迹配置的管理表，生成基于伺服地址配置的管理表。 在擦除处理中，HDD根据区域设置参数，并且基于伺服地址参考该管理表跳过管理区域。

公开(公告)号：US20050128627A1

公开(公告)日：2005-06-16

申请号：US11044298

申请日：2005-01-28

申请人： Kyo Akagi ,  Takashi Yamaguchi ,  Koki Uefune ,  Motoyasu Tsunoda ,  Atsushi Saito

发明人： Kyo Akagi ,  Takashi Yamaguchi ,  Koki Uefune ,  Motoyasu Tsunoda ,  Atsushi Saito

IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B17/04 ,  G11B19/04 ,  G11B15/48 ,  G11B21/02

CPC分类号： G11B5/012 ,  G11B17/0402 ,  G11B17/0407 ,  G11B19/04 ,  G11B2005/001

摘要： A magnetic disk apparatus has: a magnetic disk having a magnetic film formed on a substrate; a spindle motor for rotating the magnetic disk; a magnetic head for writing/reading information on/from the magnetic disk; a supporting member for supporting the magnetic head; a driving mechanism for moving the magnetic head to a predetermined position on the magnetic disk; a magnetic writing/reading circuit for enabling the magnetic head to write/read information on/from the magnetic disk; an interface for sending/receiving signals for controlling the information to/from another information processing device, a device for detecting whether or not the magnetic disk apparatus is in operation; and mechanism for latching movable part of the magnetic disk apparatus on the basis of detection result of the detecting device.

摘要翻译： 磁盘装置具有：在基板上形成有磁性膜的磁盘; 用于旋转磁盘的主轴电机; 用于在/从磁盘读/写信息的磁头; 用于支撑磁头的支撑构件; 用于将磁头移动到磁盘上的预定位置的驱动机构; 用于使磁头能够从/从磁盘写入/读取信息的磁性写入/读取电路; 用于发送/接收用于将信息控制到另一个信息处理装置的信号的接口，用于检测磁盘装置是否正在运行的装置; 以及基于检测装置的检测结果来锁定磁盘装置的可动部的机构。