公开(公告)号：US20080268249A1

公开(公告)日：2008-10-30

申请号：US11792326

申请日：2005-11-21

申请人： Koiti Araki ,  Takuji Ogawa ,  Eisuke Mizuguchi

发明人： Koiti Araki ,  Takuji Ogawa ,  Eisuke Mizuguchi

IPC分类号： B32B5/16 ,  B32B15/02 ,  B05D7/00

CPC分类号： B22F9/24 ,  B22F1/0018 ,  B22F2998/00 ,  B82Y30/00 ,  Y10T428/2991 ,  Y10T428/2993 ,  B22F1/0081

摘要： A stabilized inorganic nanoparticle which is stabilized by bonding protective ligands to a surface of an inorganic nanoparticle, wherein one part of binding sites on the surface of the inorganic nanoparticle are bonded to the protective ligand, the other part of the binding sites remain as a free site not bonded to the protective ligand, and satisfies the condition that the amount of the protective ligand bonded to the inorganic nanoparticle is a critical amount or the condition that the form of modifying the surface of the inorganic nanoparticle by the protective ligand is a critical modification form.According to the present invention, there is provided a stabilized inorganic nanoparticle that is stabilized by a protective ligand and can be rapidly functionalized with ease by bonding a functional ligand thereto.

摘要翻译： 通过将保护性配体键合到无机纳米颗粒的表面而稳定化的无机纳米颗粒，其中无机纳米颗粒表面上的一部分结合位点与保护性配体键合，结合位点的另一部分保持为游离的 并且与保护配体不结合的部位，满足与无机纳米粒子结合的保护配体的量为临界量或通过保护配体改性无机纳米粒子的表面形态为关键修饰的条件 形成。 根据本发明，提供一种通过保护性配体稳定的稳定的无机纳米颗粒，并且可以通过将功能性配体键合到其上而容易地快速官能化。

公开(公告)号：US20050268034A1

公开(公告)日：2005-12-01

申请号：US10924813

申请日：2004-08-25

申请人： Ikuya Yagisawa ,  Takuji Ogawa ,  Kenichi Takamoto ,  Yoshinori Tsuneda ,  Azuma Kano

发明人： Ikuya Yagisawa ,  Takuji Ogawa ,  Kenichi Takamoto ,  Yoshinori Tsuneda ,  Azuma Kano

IPC分类号： G06F3/06 ,  G06F11/10 ,  G06F11/16 ,  G06F11/20 ,  G06F12/08 ,  G11B5/54 ,  G11B15/68 ,  G11B17/26 ,  G11B20/18 ,  G11B21/12 ,  G11B21/22 ,  G11B27/00 ,  G11B27/36 ,  G11B33/10 ,  G11C29/00 ,  G06F12/00

CPC分类号： G11B21/12 ,  G06F3/0601 ,  G06F11/1076 ,  G06F2003/0692 ,  G06F2211/1088 ,  G11B5/54 ,  G11B15/6835 ,  G11B17/26 ,  G11B20/18 ,  G11B20/1833 ,  G11B27/002 ,  G11B27/36 ,  G11B2220/415

摘要： A diskarray system has a diskarray controller and a plurality of disk devices. Each of the disk devices has a media, a head, and a head position controller. The diskarray controller performs online data check operation, and stops the online data check operation over the disk device at first predetermined timing. After stopping the online data check operation, the diskarray controller issues an unload enable command to the disk device so as to move the head to a position different from positions at which the head reads or writes data from or to the media. The head position controller of the disk device moves the position of the head on the basis of the received unload enable command.

摘要翻译： 磁盘阵列系统具有磁盘阵列控制器和多个盘装置。 每个磁盘设备具有介质，磁头和磁头位置控制器。 磁盘阵列控制器执行在线数据检查操作，并且在第一预定定时停止通过磁盘设备的在线数据检查操作。 在停止在线数据检查操作之后，磁盘阵列控制器向磁盘设备发出卸载使能命令，以便将磁头移动到与磁头从媒体读取或写入数据的位置不同的位置。 磁盘装置的磁头位置控制器基于接收的卸载使能命令移动磁头的位置。

公开(公告)号：US20050117462A1

公开(公告)日：2005-06-02

申请号：US10766015

申请日：2004-01-29

申请人： Azuma Kano ,  Takuji Ogawa ,  Ikuya Yagisawa

发明人： Azuma Kano ,  Takuji Ogawa ,  Ikuya Yagisawa

IPC分类号： G06F3/06 ,  G06F11/00 ,  G06F11/10 ,  G06F11/14 ,  G06F12/16 ,  G06F13/38 ,  G11B5/012 ,  G11B7/085 ,  G11B20/18 ,  G11B33/14 ,  G11C7/00

CPC分类号： G06F3/0665 ,  G06F3/0614 ,  G06F3/0659 ,  G06F3/0689 ,  G06F11/1076 ,  G06F12/0866 ,  G11B20/18

摘要： A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.

公开(公告)号：US06490123B1

公开(公告)日：2002-12-03

申请号：US09185969

申请日：1998-11-05

申请人： Nobuyuki Okunaga ,  Masao Iwakura ,  Kazuo Nakagoshi ,  Takuji Ogawa ,  Chuma Akira ,  Fumio Kugiya ,  Tomio Suzuki ,  Toshiaki Kojima ,  Kazuo Sakai ,  Naoki Kodama ,  Tatsuya Ishigaki

发明人： Nobuyuki Okunaga ,  Masao Iwakura ,  Kazuo Nakagoshi ,  Takuji Ogawa ,  Chuma Akira ,  Fumio Kugiya ,  Tomio Suzuki ,  Toshiaki Kojima ,  Kazuo Sakai ,  Naoki Kodama ,  Tatsuya Ishigaki

IPC分类号： G11B2500

CPC分类号： G11B33/142 ,  G11B5/012 ,  G11B25/043

摘要： A magnetic disk drive has a housing for a 3.5 inch form factor and disk media of a diameter for a 2.5 inch form factor. The smaller disk media rotate at a high speed while consuming low electric lower and generating less heat while providing for quick access speeds. Usually, when the magnetic disk media are rotated at a higher speed, the electric power consumption and heat generation are increased because of the load increase. This problem is avoided with the use of cooling fins placed about the periphery of the disk media. Further, the smaller size disk media enable a decrease in torque loss during on-load rotation with the media, and a decrease of electric current to the spindle motor during rotation.

摘要翻译： 磁盘驱动器具有用于3.5英寸外形尺寸的外壳和2.5英寸外形尺寸的直径的盘式介质。 较小的磁盘介质以高速旋转，同时消耗低电耗并产生较少的热量，同时提供快速访问速度。 通常，当磁盘介质以更高的速度旋转时，由于负载增加，电力消耗和发热量增加。 通过使用围绕盘介质的周边放置的散热片来避免这个问题。 此外，较小尺寸的磁盘介质能够在介质的负载旋转期间减少扭矩损失，并且在旋转期间减小到主轴电机的电流。

公开(公告)号：US20090106585A1

公开(公告)日：2009-04-23

申请号：US12026858

申请日：2008-02-06

申请人： Manabu Kitamura ,  Junji Ogawa ,  Shunji Kawamura ,  Takao Sato ,  Naoto Matsunami ,  Shintaro Ito ,  Tomohiro Yoshihara ,  Takuji Ogawa

发明人： Manabu Kitamura ,  Junji Ogawa ,  Shunji Kawamura ,  Takao Sato ,  Naoto Matsunami ,  Shintaro Ito ,  Tomohiro Yoshihara ,  Takuji Ogawa

IPC分类号： G06F11/00

CPC分类号： G06F11/1076 ,  G06F2211/1014

摘要： One code (a compressed redundant code) is created based on a plurality of first redundant codes, each created on the basis of a plurality of data units, and this compressed redundant code is written to a nonvolatile storage area. This compressed redundant code is used to restore either a data element constituting a multiple-failure data, or a first redundant code corresponding to the multiple-failure data, which is stored in an unreadable sub-storage area of a partially failed storage device, and to restore the data element constituting the multiple-failure data which is stored in a sub-storage area of a completely failed storage device, based on the restored either data element or first redundant code, and either another data element constituting the multiple-failure data or the first redundant code corresponding to the multiple-failure data.

摘要翻译： 基于多个基于多个数据单元创建的多个第一冗余代码来创建一个代码（压缩冗余代码），并将该压缩的冗余代码写入非易失性存储区域。 该压缩冗余代码用于恢复存储在部分故障存储设备的不可读子存储区域中的构成多故障数据的数据元素或对应于多故障数据的第一冗余代码，以及 基于恢复的数据元素或第一冗余代码，恢复存储在完全失败的存储设备的子存储区域中的构成多故障数据的数据元素，以及构成多故障数据的另一数据元素 或对应于多故障数据的第一冗余码。

公开(公告)号：US20070192539A1

公开(公告)日：2007-08-16

申请号：US11723443

申请日：2007-03-20

申请人： Azuma Kano ,  Takuji Ogawa ,  Ikuya Yagisawa

发明人： Azuma Kano ,  Takuji Ogawa ,  Ikuya Yagisawa

IPC分类号： G06F12/00

CPC分类号： G06F3/0665 ,  G06F3/0614 ,  G06F3/0659 ,  G06F3/0689 ,  G06F11/1076 ,  G06F12/0866 ,  G11B20/18

摘要： A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.

摘要翻译： 一种具有第一和第二壳体的盘阵列系统和用于控制第一和第二壳体的控制器。 光纤通道硬盘驱动器被接收在第一外壳中，并且串行ATA硬盘驱动器被接收在第二外壳中。 当读取存储在第二壳体中的串行ATA硬盘驱动器中的数据时，控制器从RAID的所有硬盘驱动器读取包括要读取的数据和多条数据的奇偶校验数据的多条数据 存储要读取的数据的硬盘驱动器所属的组所属的组。 因此，控制器检查包括要读取的数据的多条数据是否被写入具有错误内容的硬盘驱动器。

公开(公告)号：US07203135B2

公开(公告)日：2007-04-10

申请号：US11024644

申请日：2004-12-30

申请人： Azuma Kano ,  Takuji Ogawa ,  Ikuya Yagisawa

发明人： Azuma Kano ,  Takuji Ogawa ,  Ikuya Yagisawa

IPC分类号： G11B17/22 ,  G06F11/00

CPC分类号： G06F3/0665 ,  G06F3/0614 ,  G06F3/0659 ,  G06F3/0689 ,  G06F11/1076 ,  G06F12/0866 ,  G11B20/18

摘要： A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.

公开(公告)号：US6069762A

公开(公告)日：2000-05-30

申请号：US350139

申请日：1999-07-09

申请人： Hajime Aoi ,  Toshiaki Tsuyoshi ,  Makoto Koizumi ,  Nobumasa Nishiyama ,  Yoshibumi Matsuda ,  Takuji Ogawa ,  Kazuhisa Shiraishi

发明人： Hajime Aoi ,  Toshiaki Tsuyoshi ,  Makoto Koizumi ,  Nobumasa Nishiyama ,  Yoshibumi Matsuda ,  Takuji Ogawa ,  Kazuhisa Shiraishi

IPC分类号： G11B5/02 ,  G11B5/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/39 ,  G11B5/40 ,  G11B5/55 ,  G11B5/596 ,  G11B19/02 ,  G11B19/04 ,  G11B27/30 ,  G11B27/36 ,  G11B15/12 ,  G11B5/127

CPC分类号： G11B19/04 ,  G11B19/02 ,  G11B27/3027 ,  G11B27/36 ,  G11B5/00 ,  G11B5/012 ,  G11B5/40 ,  G11B5/5547 ,  G11B2005/0016 ,  G11B2005/0018 ,  G11B5/59683

摘要： In a magnetic recording drive having a plurality of magnetic heads each employing a magnetoresistive sensor for the purpose of averaging the time required for sense currents to be caused to flow through the respective magnetoresistive sensors to shorten the longest reproducing time and to suppress the degradation of the characteristics due to the electromigration, thereby improving the reliability of the magnetic recording drive, the magnetic recording drive includes circuits for averaging the useful life depending on the currents caused to flow through the respective magnetoresistive sensors among the plurality of magnetic heads, whereby the time required for the sense current to be caused to flow through one MR reproducing head is greatly shortened. Therefore, the levels of outputs of the MR reproducing heads can be increased without reduction of the reliability and thus the reliability of the magnetic recording drive can be improved.

摘要翻译： 在具有多个磁头的磁记录驱动器中，每个磁头采用磁阻传感器，用于平均要使感应电流流过各磁阻传感器所需的时间，以缩短最长再现时间并抑制 由于电迁移的特性，从而提高了磁记录驱动器的可靠性，磁记录驱动器包括用于根据流过多个磁头中的相应磁阻传感器的电流来平均使用寿命的电路，由此所需的时间 使得通过一个MR再现头流动的感测电流大大缩短。 因此，可以在不降低可靠性的情况下增加MR再现头的输出电平，从而可以提高磁记录驱动器的可靠性。

公开(公告)号：US5173819A

公开(公告)日：1992-12-22

申请号：US733008

申请日：1991-07-19

申请人： Tsuyoshi Takahashi ,  Kazuo Nakagoshi ,  Jun Naruse ,  Takuji Ogawa ,  Takeo Hayakawa

发明人： Tsuyoshi Takahashi ,  Kazuo Nakagoshi ,  Jun Naruse ,  Takuji Ogawa ,  Takeo Hayakawa

IPC分类号： G11B33/12 ,  G11B33/14

CPC分类号： G11B33/121 ,  G11B33/128 ,  G11B33/142

摘要： An electronic apparatus, such as a disk apparatus, has a plurality of electronic units such as magnetic head-disk units and at least one power source unit for supplying power to the electronic units. The arrangement of the electronic apparatus is such that, on a frame of the apparatus, the plurality of electronic units are vertically arranged in such a manner as to form a first arrangement system, while the at least one power source unit is arranged in such a manner as to form a second arrangement system above the first arrangement system. The apparatus has an air flow passage for causing cooling air to flow from a lower portion of the electronic apparatus to the inside thereof, pass through the first arrangement system, thereby pass through the second arrangement system, and then be discharged to the outside of the apparatus. This arrangement enables cooling air to flow in a simplified manner, which in turn enhances the cooling efficiency, and also enables electrically connecting cables to be arranged in a simple wiring system.

摘要翻译： 诸如磁盘装置的电子设备具有诸如磁头盘单元的多个电子单元和用于向电子单元供电的至少一个电源单元。 电子设备的布置使得在装置的框架上，多个电子单元以形成第一布置系统的方式垂直布置，而至少一个电源单元布置成 以形成第一布置系统之上的第二布置系统。 该装置具有用于使冷却空气从电子设备的下部流向其内部的空气流动通道，通过第一布置系统，从而通过第二布置系统，然后排出到 仪器。 这种布置使得冷却空气能够以简化的方式流动，这又提高了冷却效率，并且还使电连接电缆布置在简单的布线系统中。

公开(公告)号：US4881136A

公开(公告)日：1989-11-14

申请号：US927960

申请日：1986-11-07

申请人： Kazuhisa Shiraishi ,  Kazuo Nakagoshi ,  Takuji Ogawa

发明人： Kazuhisa Shiraishi ,  Kazuo Nakagoshi ,  Takuji Ogawa

IPC分类号： G11B5/84 ,  G01R33/12 ,  G11B20/18

CPC分类号： G11B20/1816

摘要： Because of increase in data recording density on a magnetic disk in recent years, a minute defect which posed no problem in the past exerts adverse influence upon the recording and reproducing characteristics. An object of the present invention is to provide a method and an apparatus for detecting minute defects on a magnetic disk. In order to achieve this object, the present invention was made on the basis of the recognition that a large defect on the magnetic disk largely decreases the amplitude of the reproduced signal and shifts its phase, whereas a small defect does not decrease the amplitude of the reproduced signal so largely but causes a phase shift. Therefore, defects on the magnetic disk are detected by monitoring the amplitude decrease and phase shift of the reproduced signal.

摘要翻译： 由于近年来由于磁盘上的数据记录密度的增加，过去没有问题的微小缺陷对记录和再现特性产生不利影响。 本发明的目的是提供一种用于检测磁盘上的微小缺陷的方法和装置。 为了实现该目的，本发明是基于这样的认识，即磁盘上的大的缺陷大大地减小再生信号的振幅并使其相位偏移，而小的缺陷不会降低 再生信号如此大，但是导致相移。 因此，通过监视再现信号的振幅减小和相移来检测磁盘上的缺陷。