公开(公告)号：US06546471B1

公开(公告)日：2003-04-08

申请号：US09506810

申请日：2000-02-18

申请人： Toshiaki Tarui ,  Koichi Okazawa ,  Yasuyuki Okada ,  Toru Shonai ,  Toshio Okochi ,  Hideya Akashi

发明人： Toshiaki Tarui ,  Koichi Okazawa ,  Yasuyuki Okada ,  Toru Shonai ,  Toshio Okochi ,  Hideya Akashi

IPC分类号： G06F1314

CPC分类号： G06F12/0826 ,  G06F12/0284 ,  G06F2212/2542

摘要： A shared memory multiprocessor (SMP) has efficient access to a main memory included in a particular node and a management of partitions that include the nodes. In correspondence with each page of main memory included in a node, a bit stored in a register indicates if the page has been accessed from any other node. In a case where the bit is “0”, a cache coherent command to be sent to the other nodes is not transmitted. The bit is reset by software at the time of initialization and memory allocation, and it is set by hardware when the page of the main memory is accessed from any other node. In a case where the interior of an SMP is divided into partitions, the main memory of each node is divided into local and shared areas, for which respectively separate addresses can be designated. In each node, the configuration information items of the shared area and the local area are stored in registers. The command of access to the shared area is multicast to all of the nodes, whereas the command is multicast only to the nodes within the corresponding partition when the local area is accessed.

摘要翻译： 共享存储器多处理器（SMP）具有对包括在特定节点中的主存储器的有效访问以及包括节点的分区的管理。 与包含在节点中的主存储器的每页对应，存储在寄存器中的位指示是否已经从任何其他节点访问了页面。 在比特为“0”的情况下，不发送要发送到其他节点的高速缓存相干命令。 该位在初始化和内存分配时由软件复位，当从任何其他节点访问主存储器的页面时，该位由硬件置1。 在将SMP的内部划分成分区的情况下，将各节点的主存储器划分为本地区域和共享区域，分别分别分配地址。 在每个节点中，共享区域和局部区域的配置信息项存储在寄存器中。 访问共享区域的命令是组播到所有节点，而当访问本地区域时，该命令仅组播到相应分区内的节点。

公开(公告)号：US06378021B1

公开(公告)日：2002-04-23

申请号：US09250155

申请日：1999-02-16

申请人： Koichi Okazawa ,  Toshiaki Tarui ,  Yasuyuki Okada

发明人： Koichi Okazawa ,  Toshiaki Tarui ,  Yasuyuki Okada

IPC分类号： G06F1300

CPC分类号： H04L41/069 ,  G06F15/17375 ,  H04L41/0672 ,  H04L43/0811 ,  H04L49/101 ,  H04L49/201 ,  H04L49/254 ,  H04L49/552

摘要： In an information processing apparatus having a crossbar switch, registers are provided for logical division of a connection of the crossbar switch into a plurality of groups, in order to allow a system to change the group division configuration while the system is in an ordinary operation. As an application of this, in a hot standby system, when a fault occurs in an active partition and the active partition is replaced by a standby partition, the standby partition is allowed to include system resources used by the active partition such as CPU's and memories.

摘要翻译： 在具有交叉开关的信息处理装置中，提供寄存器用于将交叉开关的连接逻辑划分成多个组，以便允许系统在系统处于普通操作时改变组划分配置。 作为应用，在热备份系统中，当在活动分区中发生故障并且活动分区被备用分区替换时，备用分区被允许包括活动分区所使用的系统资源，例如CPU和存储器 。

公开(公告)号：US6131169A

公开(公告)日：2000-10-10

申请号：US460513

申请日：1999-12-14

申请人： Koichi Okazawa ,  Toshiaki Tarui ,  Yasuyuki Okada

发明人： Koichi Okazawa ,  Toshiaki Tarui ,  Yasuyuki Okada

IPC分类号： G06F13/36 ,  G06F11/00 ,  G06F11/20 ,  G06F15/167

CPC分类号： G06F11/2005 ,  G06F11/2007

摘要： An information processing apparatus includes a crossbar switch having a plurality of switching circuits for data transfer; connection lines having address data transfer paths of m-bit unit connected to each of the input/output ports of the switching circuits, control signal transfer paths of m-bit unit connected to each of the input/output ports of the control circuits and back-up transfer paths of m-bit unit connected to each of the input/output ports of the back-up circuits; and transfer path processing circuit connected correspondingly to the connection lines constructed by the n-bit provided on each of the processing units, monitored transfer of data and control signal between the processing units through the switching circuit and the control circuit in the crossbar switch, and detected a failure of at least the switching circuit and the control circuit to thereby change the connection of at least one of the failed switching circuit and control circuit to a connection of the back-up circuit.

摘要翻译： 一种信息处理设备，包括具有用于数据传送的多个切换电路的交叉开关; 具有连接到开关电路的每个输入/输出端口的m位单元的地址数据传送路径的连接线，连接到控制电路的每个输入/输出端口的m位单元的控制信号传送路径和后面 - 连接到备用电路的每个输入/输出端口的m位单元的传送路径; 以及传送路径处理电路，其对应于由在每个处理单元上提供的n位构成的连接线，通过开关电路和交叉开关中的控制电路在处理单元之间监视的数据传输和控制信号，以及 检测到至少开关电路和控制电路的故障，从而将故障切换电路和控制电路中的至少一个的连接改变为备用电路的连接。

公开(公告)号：US6088770A

公开(公告)日：2000-07-11

申请号：US30957

申请日：1998-02-26

申请人： Toshiaki Tarui ,  Koichi Okazawa ,  Yasuyuki Okada ,  Toru Shonai ,  Toshio Okochi ,  Hideya Akashi

发明人： Toshiaki Tarui ,  Koichi Okazawa ,  Yasuyuki Okada ,  Toru Shonai ,  Toshio Okochi ,  Hideya Akashi

IPC分类号： G06F15/177 ,  G06F12/02 ,  G06F12/08 ,  G06F15/17 ,  G06F13/14

CPC分类号： G06F12/0826 ,  G06F12/0284 ,  G06F2212/2542

摘要： A shared memory multiprocessor (SMP) has efficient access to a main memory included in a particular node and a management of partitions that include the nodes. In correspondence with each page of main memory included in a node, a bit stored in a register indicates if the page has been accessed from any other node. In a case where the bit is "0", a cache coherent command to be sent to the other nodes is not transmitted. The bit is reset by software at the time of initialization and memory allocation, and it is set by hardware when the page of the main memory is accessed from any other node. In a case where the interior of an SMP is divided into partitions, the main memory of each node is divided into local and shared areas, for which respectively separate addresses can be designated. In each node, the configuration information items of the shared area and the local area are stored in registers. The command of access to the shared area is multicast to all of the nodes, whereas the command is multicast only to the nodes within the corresponding partition when the local area is accessed.

公开(公告)号：US6035414A

公开(公告)日：2000-03-07

申请号：US962683

申请日：1997-11-03

申请人： Koichi Okazawa ,  Toshiaki Tarui ,  Yasuyuki Okada

发明人： Koichi Okazawa ,  Toshiaki Tarui ,  Yasuyuki Okada

IPC分类号： G06F13/36 ,  G06F11/00 ,  G06F11/20 ,  G06F15/167

CPC分类号： G06F11/2005 ,  G06F11/2007

摘要： An information processing apparatus includes a crossbar switch having a plurality of switching circuits for data transfer; connection lines having address data transfer paths of m-bit unit connected to each of the input/output ports of the switching circuits, control signal transfer paths of m-bit unit connected to each of the input/output ports of the control circuits and back-up transfer paths of m-bit unit connected to each of the input/output ports of the back-up circuits; and transfer path processing circuit connected correspondingly to the connection lines constructed by the n-bit provided on each of the processing units, monitored transfer of data and control signal between the processing units through the switching circuit and the control circuit in the crossbar switch, and detected a failure of at least the switching circuit and the control circuit to thereby change the connection of at least one of the failed switching circuit and control circuit to a connection of the back-up circuit.

公开(公告)号：US07813079B2

公开(公告)日：2010-10-12

申请号：US12255306

申请日：2008-10-21

申请人： Yoshiaki Kawato ,  Kazuhiro Nakamoto ,  Hiroyuki Hoshiya ,  Yasuyuki Okada ,  Masafumi Mochizuki

发明人： Yoshiaki Kawato ,  Kazuhiro Nakamoto ,  Hiroyuki Hoshiya ,  Yasuyuki Okada ,  Masafumi Mochizuki

IPC分类号： G11B5/147 ,  G11B5/127

CPC分类号： G11B5/3906 ,  G11B5/1278

摘要： Thin film perpendicular magnetic head with a narrow main pole capable of a high recording density in excess of 100 gigabits per square inch and generating a high magnetic recording field, while also being modified to suppress remanent magnetic fields occurring immediately after writing operation. A return path is provided for supplying a magnetic flux to the main pole, and an conductive coil for excitation of the main pole and return path. The main pole has a pole width of 200 nanometers or less, and a magnetic multilayer made up of a high saturation flux density layer and low saturation flux density layer. The low saturation flux density layer and the high saturation flux density suppress remanent magnetization and prevent erasing after writing by utilizing a closed magnetic domain structure in the pole.

摘要翻译： 具有超过100吉比特/平方英寸的高记录密度的窄主极的薄膜垂直磁头，并产生高磁记录场，同时还进行修改以抑制在写入操作之后立即发生的剩余磁场。 提供用于向主极提供磁通量的返回路径和用于激励主极和返回路径的导电线圈。 主极的极宽为200nm以下，由高饱和磁通密度层和低饱和磁通密度层构成的磁性层叠体。 低饱和磁通密度层和高饱和磁通密度通过利用磁极中的闭合磁畴结构来抑制剩磁，并防止写入后的擦除。

公开(公告)号：US20090059425A1

公开(公告)日：2009-03-05

申请号：US12255306

申请日：2008-10-21

申请人： Yoshiaki Kawato ,  Kazuhiro Nakamoto ,  Hiroyuki Hoshiya ,  Yasuyuki Okada ,  Masafumi Mochizuki

发明人： Yoshiaki Kawato ,  Kazuhiro Nakamoto ,  Hiroyuki Hoshiya ,  Yasuyuki Okada ,  Masafumi Mochizuki

IPC分类号： G11B5/33

CPC分类号： G11B5/3906 ,  G11B5/1278

摘要： Thin film perpendicular magnetic head with a narrow main pole capable of a high recording density in excess of 100 gigabits per square inch and generating a high magnetic recording field, while also being modified to suppress remanent magnetic fields occurring immediately after writing operation. A return path is provided for supplying a magnetic flux to the main pole, and an conductive coil for excitation of the main pole and return path. The main pole has a pole width of 200 nanometers or less, and a magnetic multilayer made up of a high saturation flux density layer and low saturation flux density layer. The low saturation flux density layer and the high saturation flux density suppress remanent magnetization and prevent erasing after writing by utilizing a closed magnetic domain structure in the pole.

摘要翻译： 具有超过100吉比特/平方英寸的高记录密度的窄主极的薄膜垂直磁头，并产生高磁记录场，同时还进行修改以抑制在写入操作之后立即发生的剩余磁场。 提供用于向主极提供磁通量的返回路径和用于激励主极和返回路径的导电线圈。 主极的极宽为200nm以下，由高饱和磁通密度层和低饱和磁通密度层构成的磁性层叠体。 低饱和磁通密度层和高饱和磁通密度通过利用磁极中的闭合磁畴结构来抑制剩磁，并防止写入后的擦除。

公开(公告)号：US07426091B2

公开(公告)日：2008-09-16

申请号：US11393684

申请日：2006-03-31

申请人： Yasuyuki Okada ,  Hiroyuki Hoshiya ,  Yoshiaki Kawato

发明人： Yasuyuki Okada ,  Hiroyuki Hoshiya ,  Yoshiaki Kawato

IPC分类号： G11B5/147

CPC分类号： G11B5/1278

摘要： The disclosed invention provides a magnetic head of high stability in which “erase after write” is prevented. Here is provided a magnetic head comprising a thin-film magnetic head for perpendicular magnetic recording, the thin-film magnetic head including a main pole with its tip facing a magnetic recording medium and coils for exciting the main pole, wherein the tip of or at least a part of the main pole consists of a soft magnetic multilayer containing laminations, each of which comprises a first ferromagnetic film, a second ferromagnetic film, and an antiparallel coupling layer formed between the first ferromagnetic film and the second ferromagnetic film, wherein the antiparallel coupling layer causes antiferromagnetic interlayer coupling of the first ferromagnetic film and the second ferromagnetic film.

摘要翻译： 所公开的发明提供了一种高稳定性的磁头，其中防止“写入后擦除”。 这里提供了一种磁头，其包括用于垂直磁记录的薄膜磁头，该薄膜磁头包括一个主极，其顶端面向磁记录介质和用于激励主极的线圈，其中尖端或 主极的至少一部分由包含叠层的软磁性多层组成，每层包含第一铁磁膜，第二铁磁膜和形成在第一铁磁膜和第二铁磁膜之间的反并联耦合层，其中反平行 耦合层引起第一铁磁膜和第二铁磁膜的反铁磁层间耦合。

公开(公告)号：US20060164759A1

公开(公告)日：2006-07-27

申请号：US11393684

申请日：2006-03-31

申请人： Yasuyuki Okada ,  Hiroyuki Hoshiya ,  Yoshiaki Kawato

发明人： Yasuyuki Okada ,  Hiroyuki Hoshiya ,  Yoshiaki Kawato

IPC分类号： G11B5/147

CPC分类号： G11B5/1278

摘要： The disclosed invention provides a magnetic head of high stability in which “erase after write” is prevented. Here is provided a magnetic head comprising a thin-film magnetic head for perpendicular magnetic recording, the thin-film magnetic head including a main pole with its tip facing a magnetic recording medium and coils for exciting the main pole, wherein the tip of or at least a part of the main pole consists of a soft magnetic multilayer containing laminations, each of which comprises a first ferromagnetic film, a second ferromagnetic film, and an antiparallel coupling layer formed between the first ferromagnetic film and the second ferromagnetic film, wherein the antiparallel coupling layer causes antiferromagnetic interlayer coupling of the first ferromagnetic film and the second ferromagnetic film.

公开(公告)号：US06723449B2

公开(公告)日：2004-04-20

申请号：US09917892

申请日：2001-07-31

申请人： Kazue Kudo ,  Yasuyuki Okada ,  Nobuo Yoshida ,  Moriaki Fuyama ,  Noriyuki Saiki ,  Gen Oikawa ,  Takashi Kawabe ,  Makoto Morijiri

发明人： Kazue Kudo ,  Yasuyuki Okada ,  Nobuo Yoshida ,  Moriaki Fuyama ,  Noriyuki Saiki ,  Gen Oikawa ,  Takashi Kawabe ,  Makoto Morijiri

IPC分类号： G11B5127

CPC分类号： G11B5/3109 ,  G11B5/3153 ,  G11B5/3163 ,  Y10T29/49032 ,  Y10T428/11 ,  Y10T428/1121 ,  Y10T428/115 ,  Y10T428/12931

摘要： A material for magnetic pole for attaining a writing head generating an intense recording magnetic field, and a structure and a manufacturing method therefor. The thin film magnetic head includes a magnetic pole layer having a plated magnetic layer containing Co, Ni and Fe formed on a plated underlayer of a sputtered magnetic layer containing Co, Ni and Fe. The CoNiFe magnetic layer having a composition: 40 wt %≦Co≦70 wt %, 10 wt %≦Ni≦25 wt % and 10 wt %≦Fe≦30 wt % and a peak intensity ratio in the X-ray diffraction of I(200)/I(111)≧0.5 and I(110)/I(111)≧1 (defining peak intensities for the face-centered cubic fcc (111) face, fcc (200) face and the body-centered cubic bcc (119) face as: I(111), I(200), I(110)).

摘要翻译： 用于获得产生强烈记录磁场的写入头的用于磁极的材料及其结构及其制造方法。 薄膜磁头包括具有包含Co，Ni和Fe的镀覆磁性层的磁极层，其形成在包含Co，Ni和Fe的溅射磁性层的镀覆底层上。 CoNiFe磁性层的组成为：40重量％<= Co <= 70重量％，10重量％<= Ni <= 25重量％，10重量％<= Fe <= 30重量％ （111）= 0.5（I（110）/ I（111）> = 1（定义面心立方fcc（111）面的峰强度，fcc（200））的X射线衍射 面部和体心立方体bcc（119）面为：I（111），I（200），I（110））。