公开(公告)号：US20070139811A1

公开(公告)日：2007-06-21

申请号：US11634960

申请日：2006-12-07

申请人： Yusuke Ohinata ,  Koji Osafune ,  Yuji Sakai ,  Masahide Yatsu

发明人： Yusuke Ohinata ,  Koji Osafune ,  Yuji Sakai ,  Masahide Yatsu

IPC分类号： G11B5/596

CPC分类号： G11B5/59627 ,  G11B5/5582 ,  G11B19/042

摘要： According to one embodiment, a disk drive is provided which corrects already existing offset information according to a variation of a disk runout amount caused by an occurrence of a disk shift. The disk drive effects a head position adjustment at a head positioning control time with the use of offset information stored in a memory. A CPU measures a variation in the disk runout amount and phase caused by an occurrence of a disk shift resulting from an external shock involved and updates the existing offset information with a correction offset information based on a result of measurement.

摘要翻译： 根据一个实施例，提供了一种磁盘驱动器，其根据由磁盘移位的发生引起的磁盘跳动量的变化来校正已经存在的偏移信息。 磁盘驱动器通过使用存储在存储器中的偏移信息来实现磁头定位控制时间的磁头位置调节。 CPU测量由于涉及的外部冲击导致的磁盘偏移的发生引起的磁盘跳动量和相位的变化，并且基于测量结果用修正偏移信息更新现有的偏移信息。

公开(公告)号：US07489468B2

公开(公告)日：2009-02-10

申请号：US11634960

申请日：2006-12-07

申请人： Yusuke Ohinata ,  Koji Osafune ,  Yuji Sakai ,  Masahide Yatsu

发明人： Yusuke Ohinata ,  Koji Osafune ,  Yuji Sakai ,  Masahide Yatsu

IPC分类号： G11B5/596

CPC分类号： G11B5/59627 ,  G11B5/5582 ,  G11B19/042

摘要： According to one embodiment, a disk drive is provided which corrects already existing offset information according to a variation of a disk runout amount caused by an occurrence of a disk shift. The disk drive effects a head position adjustment at a head positioning control time with the use of offset information stored in a memory. A CPU measures a variation in the disk runout amount and phase caused by an occurrence of a disk shift resulting from an external shock involved and updates the existing offset information with a correction offset information based on a result of measurement.

摘要翻译： 根据一个实施例，提供了一种磁盘驱动器，其根据由磁盘移位的发生引起的磁盘跳动量的变化来校正已经存在的偏移信息。 磁盘驱动器通过使用存储在存储器中的偏移信息来实现磁头定位控制时间的磁头位置调节。 CPU测量由于涉及的外部冲击导致的磁盘偏移的发生引起的磁盘跳动量和相位的变化，并且基于测量结果用修正偏移信息更新现有的偏移信息。

公开(公告)号：US20060139787A1

公开(公告)日：2006-06-29

申请号：US11215020

申请日：2005-08-31

申请人： Yusuke Ohinata ,  Hiroyuki Naka ,  Yuji Sakai

发明人： Yusuke Ohinata ,  Hiroyuki Naka ,  Yuji Sakai

IPC分类号： G11B5/09 ,  G11B5/02

CPC分类号： G11B5/465

摘要： In a data-recording mode, a driver circuit supplies a recording head with a recording current corresponding to write data. In a degaussing mode, the driver circuit supplies the recording head with a degaussing current for eliminating the residual magnetism of the head as the recording current. The degaussing current has a rising period and falling period set longer than those of the recording current supplied in the data-recording mode.

摘要翻译： 在数据记录模式中，驱动电路向记录头提供与写数据相对应的记录电流。 在消磁模式中，驱动电路为记录头提供消磁电流，以消除作为记录电流的磁头的剩磁。 消磁电流具有比在数据记录模式中提供的记录电流的上升周期和下降周期长的设定。

公开(公告)号：US07460324B2

公开(公告)日：2008-12-02

申请号：US11215020

申请日：2005-08-31

申请人： Yusuke Ohinata ,  Hiroyuki Naka ,  Yuji Sakai

发明人： Yusuke Ohinata ,  Hiroyuki Naka ,  Yuji Sakai

IPC分类号： G11B5/03

CPC分类号： G11B5/465

摘要： In a data-recording mode, a driver circuit supplies a recording head with a recording current corresponding to write data. In a degaussing mode, the driver circuit supplies the recording head with a degaussing current for eliminating the residual magnetism of the head as the recording current. The degaussing current has a rising period and falling period set longer than those of the recording current supplied in the data-recording mode.

摘要翻译： 在数据记录模式中，驱动电路向记录头提供与写数据相对应的记录电流。 在消磁模式中，驱动电路为记录头提供消磁电流，以消除作为记录电流的磁头的剩磁。 消磁电流具有比在数据记录模式中提供的记录电流的上升周期和下降周期长的设定。

公开(公告)号：US07009792B2

公开(公告)日：2006-03-07

申请号：US10674506

申请日：2003-10-01

申请人： Yuji Sakai ,  Koji Osafune

发明人： Yuji Sakai ,  Koji Osafune

IPC分类号： G11B5/09

CPC分类号： G11B20/10203 ,  G11B5/012 ,  G11B20/10055 ,  G11B20/10222 ,  G11B2005/0029

摘要： A perpendicular magnetic recording type of disk drive having function of removing a component of a shift in a base line of a reproducing signal is to be disclosed. The disk drive has a read channel including an extracting unit which extracts the component of the shift in the base line of the reproducing signal. The extracting unit includes low-pass filters, and parameters of a lower cut-off frequency of the low-pass filter are adjusted in read operation.

摘要翻译： 公开了具有去除重放信号的基线中的偏移分量的功能的垂直磁记录型磁盘驱动器。 磁盘驱动器具有包括提取单元的读取通道，该提取单元提取再现信号的基线中的移位的分量。 提取单元包括低通滤波器，并且在读取操作中调节低通滤波器的较低截止频率的参数。

公开(公告)号：US20050168863A1

公开(公告)日：2005-08-04

申请号：US11037167

申请日：2005-01-19

申请人： Yuji Sakai ,  Koji Osafune

发明人： Yuji Sakai ,  Koji Osafune

IPC分类号： G11B21/10 ,  G11B5/596

CPC分类号： G11B5/59627

摘要： A disk drive is disclosed which performs a head positioning operation capable of coping with a variation of an offset caused by a disk runout. A CPU of a head positioning control system calculates a second position offset amount by correcting a first position offset amount corresponding to a rotation angle of an actuator on a disk medium based on a disk runout amount. The CPU performs head positioning control including a position correction operation corresponding to a second position offset amount.

摘要翻译： 公开了一种磁盘驱动器，其执行能够应对由磁盘跳动引起的偏移的变化的磁头定位操作。 头位置控制系统的CPU通过基于盘跳动量校正与盘介质上的致动器的旋转角相对应的第一位置偏移量来计算第二位置偏移量。 CPU执行包括对应于第二位置偏移量的位置校正操作的头部定位控制。

公开(公告)号：US07057844B2

公开(公告)日：2006-06-06

申请号：US11037167

申请日：2005-01-19

申请人： Yuji Sakai ,  Koji Osafune

发明人： Yuji Sakai ,  Koji Osafune

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： A disk drive is disclosed which performs a head positioning operation capable of coping with a variation of an offset caused by a disk runout. A CPU of a head positioning control system calculates a second position offset amount by correcting a first position offset amount corresponding to a rotation angle of an actuator on a disk medium based on a disk runout amount. The CPU performs head positioning control including a position correction operation corresponding to a second position offset amount.

摘要翻译： 公开了一种磁盘驱动器，其执行能够应对由磁盘跳动引起的偏移的变化的磁头定位操作。 头位置控制系统的CPU通过基于盘跳动量校正与盘介质上的致动器的旋转角相对应的第一位置偏移量来计算第二位置偏移量。 CPU执行包括对应于第二位置偏移量的位置校正操作的头部定位控制。

公开(公告)号：US08349118B2

公开(公告)日：2013-01-08

申请号：US12968965

申请日：2010-12-15

申请人： Shintarou Sasaki ,  Takanori Aizawa ,  Yuji Sakai

发明人： Shintarou Sasaki ,  Takanori Aizawa ,  Yuji Sakai

IPC分类号： B32B37/06

CPC分类号： G06K19/07749 ,  B32B37/142 ,  B32B2305/22 ,  B32B2425/00 ,  Y10T156/10 ,  Y10T428/24901

摘要： Provided is a manufacturing method for a non-contact communication medium, including: forming in a first region a first structure including an IC chip mounted on the first region, a first adhesive in an uncured state, which is applied on the IC chip, and a first plate member placed on the first adhesive; forming in a second region a second structure including a second adhesive in an uncured state, which is applied on the second region, and a second plate member placed on the second adhesive; sandwiching the first region and the second region by a first partition wall capable of partitioning the first region and accommodating the first structure and a second partition wall capable of partitioning the second region and accommodating the second structure; and heating the first partition wall and the second partition wall, to thereby thermally cure the first adhesive and the second adhesive, respectively.

摘要翻译： 提供一种非接触式通信介质的制造方法，包括：在第一区域中形成第一结构，该第一结构包括安装在第一区域上的IC芯片，未固化状态的第一粘合剂，其被施加在IC芯片上;以及 放置在第一粘合剂上的第一板构件; 在第二区域中形成包括处于未固化状态的第二粘合剂的第二结构，其施加在第二区域上，以及放置在第二粘合剂上的第二板构件; 通过能够分隔第一区域并容纳第一结构的第一分隔壁和能够分隔第二区域并容纳第二结构的第二分隔壁来夹持第一区域和第二区域; 并加热第一分隔壁和第二分隔壁，从而分别热固化第一粘合剂和第二粘合剂。

公开(公告)号：US08071894B2

公开(公告)日：2011-12-06

申请号：US11984176

申请日：2007-11-14

申请人： Yuji Sakai

发明人： Yuji Sakai

IPC分类号： H05K5/00

CPC分类号： G06F1/185 ,  G06F1/20 ,  H01L23/3735 ,  H01L23/467 ,  H01L2924/0002 ,  H05K1/0209 ,  H05K1/14 ,  H05K7/205 ,  H05K2201/044 ,  H05K2201/066 ,  H05K2201/09781 ,  H05K2201/10189 ,  H01L2924/00

摘要： A semiconductor device includes a module board mounting thereon an electric component and including a plug at an edge of the module board, and a mount board including thereon a socket adapted to said plug on a surface portion of the mount board for mounting thereon the module board via said plug, wherein the mount board includes therein a heat radiation layer in contact with a bottom surface of the socket, wherein the socket comprises a heat radiation guide plate in contact with a side surface of the socket.

摘要翻译： 半导体器件包括：模块板，其安装在电气部件上，并且在模块板的边缘处包括插头;以及安装板，其上安装有用于在所述安装板的表面部分上安装所述模块板的所述插头的插座 通过所述插头，其中所述安装板包括与所述插座的底表面接触的散热层，其中所述插座包括与所述插座的侧表面接触的散热导板。

公开(公告)号：US07933088B2

公开(公告)日：2011-04-26

申请号：US12338962

申请日：2008-12-18

申请人： Hideo Sado ,  Masatoshi Sakurai ,  Yuji Sakai

发明人： Hideo Sado ,  Masatoshi Sakurai ,  Yuji Sakai

IPC分类号： G11B5/09 ,  G11B5/596

CPC分类号： G11B5/59688 ,  G11B5/59655 ,  G11B5/59666

摘要： According to one embodiment, a disk drive has a DTM type disk. The DTM type disk has a servo area on one recording surface. In the servo area, a servo pattern is recorded. The servo pattern is composed of a projection-depression pattern and an N- and P-pole magnetic pattern. The N- and P-pole magnetic pattern is recorded in an address-data region that contains a cylinder code.

摘要翻译： 根据一个实施例，磁盘驱动器具有DTM型磁盘。 DTM型盘在一个记录表面上具有伺服区。 在伺服区域中，记录伺服模式。 伺服图案由投影凹陷图案和N极和P极磁图案组成。 N极和P极磁性图案被记录在包含气缸代码的地址数据区域中。