公开(公告)号：US06396661B1

公开(公告)日：2002-05-28

申请号：US09223355

申请日：1998-12-30

申请人： Toru Yokohata ,  Takayuki Yamamoto

发明人： Toru Yokohata ,  Takayuki Yamamoto

IPC分类号： G11B2121

CPC分类号： G11B5/012 ,  G11B5/6005 ,  G11B5/82 ,  G11B21/21

摘要： A magnetic disk drive includes a magnetic recording medium rotatably mounted in a housing, a magnetic head slider having an electromagnetic transducer for reading/writing data from/to the magnetic recording medium, and an actuator for moving the magnetic head slider across tracks of the magnetic recording medium. The magnetic head slider has a medium opposing surface opposed to the magnetic recording medium, and is formed with an air bearing surface and a plurality of projections. The magnetic recording medium has a unidirectional texture which includes a surface roughness composed of numerous microscopic projections having an average top radius of 1 &mgr;m or more.

摘要翻译： 磁盘驱动器包括可旋转地安装在壳体中的磁记录介质，具有用于从/从磁记录介质读取/写入数据的电磁换能器的磁头滑块，以及用于使磁头滑块移动到磁性磁道的轨道上的致动器 记录介质。 磁头滑块具有与磁记录介质相对的介质相对表面，并且形成有空气轴承表面和多个突起。 磁记录介质具有单向纹理，其包括由平均顶部半径为1μm以上的多个微突起构成的表面粗糙度。

公开(公告)号：US20080266692A1

公开(公告)日：2008-10-30

申请号：US12110177

申请日：2008-04-25

申请人： Hitoshi Komoriya ,  Michinaga Yamagishi ,  Toru Yokohata

发明人： Hitoshi Komoriya ,  Michinaga Yamagishi ,  Toru Yokohata

IPC分类号： G11B5/02 ,  G11B27/36 ,  G11B21/02

CPC分类号： G11B19/045 ,  G11B5/59655 ,  G11B5/59688 ,  G11B20/1217 ,  G11B20/182 ,  G11B2020/1232 ,  G11B2020/1281 ,  G11B2020/1298 ,  G11B2220/2516

摘要： A data writing method to write data on a disk in a disk device. The data is written in one radial direction. The method includes detecting a first deviation amount from a center in a current track and sector in the direction of a track on which data was previously written. A second deviation amount from the center in the current track and sector in the direction of a track on which data will be subsequently written is also detected. Data is written on the current track when the first deviation amount is equal to or smaller than a first threshold and the second deviation amount is equal to or smaller than a second threshold.

摘要翻译： 一种在磁盘设备中的磁盘上写入数据的数据写入方法。 数据以一个径向写入。 该方法包括从先前写入数据的轨道的方向上检测当前轨迹中的中心和扇区的第一偏移量。 还检测到当前轨道中的中心和在其后将写入数据的轨道的方向上的扇区的第二偏移量。 当第一偏差量等于或小于第一阈值并且第二偏移量等于或小于第二阈值时，将数据写入当前轨迹。

公开(公告)号：US07057385B2

公开(公告)日：2006-06-06

申请号：US10386637

申请日：2003-03-12

申请人： Toru Yokohata ,  Takahiro Imamura ,  Toshiya Fujita ,  Yojiro Ochiai ,  Masahiro Ozeki ,  Naoki Satake

发明人： Toru Yokohata ,  Takahiro Imamura ,  Toshiya Fujita ,  Yojiro Ochiai ,  Masahiro Ozeki ,  Naoki Satake

IPC分类号： G01R33/12

CPC分类号： G11B5/6005 ,  G01R33/1207 ,  G11B5/00 ,  G11B5/012 ,  G11B2005/001

摘要： A magnetic recording medium inspection method detects small protrusions that constitute defects on the surface of a magnetic recording medium. The method includes flying a glide inspection head at a predetermined height over the surface of the moving magnetic recording medium; detecting a contact duration time during which the glide head is in contact with a protrusion on the surface of the magnetic recording medium using a contact detection sensor attached to the glide inspection head; and determining the small protrusion based on the contact duration time.

摘要翻译： 磁记录介质检查方法检测在磁记录介质的表面上构成缺陷的小突起。 该方法包括在移动磁记录介质的表面上以预定高度飞行滑动检查头; 使用附接到所述滑行检查头的接触检测传感器来检测所述滑动头与所述磁记录介质的表面上的突起接触的接触持续时间; 以及基于所述接触持续时间确定所述小突起。

公开(公告)号：US08296512B2

公开(公告)日：2012-10-23

申请号：US12360601

申请日：2009-01-27

申请人： Toru Yokohata ,  Hitoshi Komoriya ,  Takayuki Kawabe

发明人： Toru Yokohata ,  Hitoshi Komoriya ,  Takayuki Kawabe

IPC分类号： G06F12/00

CPC分类号： G11B5/012 ,  G11B5/09 ,  G11B5/5521 ,  G11B20/10 ,  G11B20/10527 ,  G11B20/1217 ,  G11B2020/1062 ,  G11B2020/10685 ,  G11B2020/10916 ,  G11B2020/1238 ,  G11B2020/1295 ,  G11B2220/2516

摘要： A recording method for a disk device includes the following steps. Sequential data is written into the medium along the track in a predetermined radial direction. Information indicating an end position along the track where the end of the sequential data is written into is stored. The information is read when additional sequential data is to be written into the medium. The additional data is written from a position along the track next to the end position indicated by the information in the predetermined radial direction. The information is updated so as to indicate an end position along the track where the end of the additional sequential data is written into.

摘要翻译： 盘装置的记录方法包括以下步骤。 顺序数据沿着轨道在预定的径向上被写入到介质中。 存储指示顺序数据的结束被写入轨道的结束位置的信息。 当附加顺序数据写入介质时，读取信息。 附加数据从沿着预定径向的信息所指示的结束位置旁边的轨道的位置写入。 信息被更新，以指示沿着附加顺序数据的结尾被写入的轨道的结束位置。

公开(公告)号：US20070127147A1

公开(公告)日：2007-06-07

申请号：US11387064

申请日：2006-03-23

申请人： Toru Yokohata ,  Takeshi Iwase ,  Takahisa Ueno ,  Seigo Igaki ,  Takahiro Imamura

发明人： Toru Yokohata ,  Takeshi Iwase ,  Takahisa Ueno ,  Seigo Igaki ,  Takahiro Imamura

IPC分类号： G11B27/36 ,  G11B21/02

CPC分类号： G11B5/6005 ,  G11B5/6064

摘要： In a contact detecting apparatus that detects contact of a head with a recording medium, a signal writing unit writes onto the recording medium, a signal that includes at least one predetermined frequency component; and a contact detecting unit detects the contact of the head with the recording medium based on an amplitude of the predetermined frequency component, by reading the signal written on the recording medium while changing a spacing between the head and the recording medium.

摘要翻译： 在检测头与记录介质的接触的接触检测装置中，信号写入单元向记录介质写入包括至少一个预定频率分量的信号; 并且接触检测单元通过在改变头部和记录介质之间的间隔的同时读取记录在记录介质上的信号，基于预定频率分量的振幅来检测头与记录介质的接触。

公开(公告)号：US07774572B2

公开(公告)日：2010-08-10

申请号：US10880241

申请日：2004-06-29

申请人： Toru Yokohata ,  Atsuo Iida ,  Arata Ejiri ,  Mitsuhiko Ohta ,  Riichiro Take ,  Kazutaka Ogihara ,  Yasuo Noguchi

发明人： Toru Yokohata ,  Atsuo Iida ,  Arata Ejiri ,  Mitsuhiko Ohta ,  Riichiro Take ,  Kazutaka Ogihara ,  Yasuo Noguchi

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28

CPC分类号： G06F3/0647 ,  G06F3/0605 ,  G06F3/061 ,  G06F3/0635 ,  G06F3/067

摘要： The present invention relates to a system capable of carrying out efficient and stable system operation control even if a usage rate of the entire system varies under a situation in which the characteristics of storage units, such as maximum available total capacity and speed performance, are largely different from each other. Therefore, the system according to the present invention is composed of a monitor unit for monitoring information on a total volume of data stored in each of the storage units or in all the storage units, an index value calculating unit for calculating an index value on the basis of the monitor result and a location unit for distributively locating or relocating logical storage areas in physical storage areas on a plurality of storage units on the basis of the calculated index value.

摘要翻译： 本发明涉及一种能够进行高效稳定的系统运行控制的系统，即使整个系统的使用率在诸如最大可用总容量和速度性能等存储单元的特性在很大程度上变化的情况下变化 彼此不同。 因此，根据本发明的系统由用于监视存储在每个存储单元或所有存储单元中的数据的总体积的信息的监视单元组成，用于计算所述存储单元中的索引值的索引值计算单元 监视结果的基础和用于基于计算出的指标值在多个存储单元上的物理存储区域中分配地定位或重新分配逻辑存储区域的位置单元。

公开(公告)号：US20090190251A1

公开(公告)日：2009-07-30

申请号：US12360601

申请日：2009-01-27

申请人： Toru Yokohata ,  Hitoshi Komoriya ,  Takayuki Kawabe

发明人： Toru Yokohata ,  Hitoshi Komoriya ,  Takayuki Kawabe

IPC分类号： G11B5/55

CPC分类号： G11B5/012 ,  G11B5/09 ,  G11B5/5521 ,  G11B20/10 ,  G11B20/10527 ,  G11B20/1217 ,  G11B2020/1062 ,  G11B2020/10685 ,  G11B2020/10916 ,  G11B2020/1238 ,  G11B2020/1295 ,  G11B2220/2516

摘要： A recording method for a disk device includes the following steps. Sequential data is written into the medium along the track in a predetermined radial direction. Information indicating an end position along the track where the end of the sequential data is written into is stored. The information is read when additional sequential data is to be written into the medium. The additional data is written from a position along the track next to the end position indicated by the information in the predetermined radial direction. The information is updated so as to indicate an end position along the track where the end of the additional sequential data is written into.

摘要翻译： 盘装置的记录方法包括以下步骤。 顺序数据沿着轨道在预定的径向上被写入到介质中。 存储指示顺序数据的结束被写入轨道的结束位置的信息。 当附加顺序数据写入介质时，读取信息。 附加数据从沿着预定径向的信息所指示的结束位置旁边的轨道的位置写入。 信息被更新，以指示沿着附加顺序数据的结尾被写入的轨道的结束位置。

公开(公告)号：US07365931B2

公开(公告)日：2008-04-29

申请号：US11512332

申请日：2006-08-30

申请人： Yoshiaki Ikai ,  Atsuo Iida ,  Takahiro Imamura ,  Tohru Fujimaki ,  Toru Yokohata

发明人： Yoshiaki Ikai ,  Atsuo Iida ,  Takahiro Imamura ,  Tohru Fujimaki ,  Toru Yokohata

IPC分类号： G11B21/02

CPC分类号： G11B5/6005 ,  G11B5/6064

摘要： A method of detecting a gap between a head and a recording medium in an information-recording/reproducing apparatus that uses the head to record and reproduce information in and from the recording medium. In the method, the gap between the head and the recording medium is alternately increased and decreased, thereby gradually reducing the gap between the head and the recording medium. A detection signal is detected from which to determine a contact between the head or a slider supporting the head and the recording medium. When it is determined that the head or the slider has contacted the recording medium, the head is stopped and moved away from the recording medium to a prescribed position, and data representing a distance the head has moved to contact the recoding medium is acquired.

摘要翻译： 一种在使用该头在记录介质中记录和再现信息的信息记录/再现装置中检测头部和记录介质之间的间隙的方法。 在该方法中，头部和记录介质之间的间隙交替地增加和减小，从而逐渐减小头部和记录介质之间的间隙。 检测检测信号以确定头部或支撑头部的滑块与记录介质之间的接触。 当确定头部或滑块已经接触到记录介质时，头被停止并从记录介质移开到规定位置，并且获取表示磁头移动以与记录介质接触的距离的数据。

公开(公告)号：US20080074797A1

公开(公告)日：2008-03-27

申请号：US11878533

申请日：2007-07-25

申请人： Yoshiaki Ikai ,  Toru Yokohata ,  Takahiro Imamura ,  Kenrou Yamamoto

发明人： Yoshiaki Ikai ,  Toru Yokohata ,  Takahiro Imamura ,  Kenrou Yamamoto

IPC分类号： G11B5/56 ,  G11B21/24

CPC分类号： G11B5/486 ,  G11B5/4853 ,  G11B5/5552

摘要： A first wiring connects a first actuator to a controlling circuit on a head slider. The second wiring connects the second actuator to the first wiring in parallel with the first actuator. A first rectifying element is inserted in the first wiring. A second rectifying element is inserted in the second wiring. When electric voltage is applied to the first and second wiring in a first direction, the electric voltage acts on the first wiring. Only the first actuator is allowed to receive the electric voltage. When electric voltage is applied to the first and second wiring in a second direction opposite to the first direction, the electric voltage acts on the second wiring. Only the second actuator is allowed to receive the electric voltage in the second direction.

摘要翻译： 第一布线将第一致动器连接到磁头滑块上的控制电路。 第二布线将第二致动器与第一致动器并联连接到第一布线。 第一整流元件插入第一布线。 第二整流元件插入第二布线。 当在第一方向上向第一和第二布线施加电压时，电压作用在第一布线上。 只允许第一个执行器接收电压。 当在与第一方向相反的第二方向上向第一和第二布线施加电压时，电压作用在第二布线上。 只允许第二个致动器在第二个方向上接收电压。

公开(公告)号：US20060036820A1

公开(公告)日：2006-02-16

申请号：US11256911

申请日：2005-10-24

申请人： Arata Ejiri ,  Mitsuhiko Ohta ,  Toru Yokohata ,  Atsuo Iida

发明人： Arata Ejiri ,  Mitsuhiko Ohta ,  Toru Yokohata ,  Atsuo Iida

IPC分类号： G06F12/00 ,  G06F15/16

CPC分类号： G06F3/0659 ,  G06F3/0605 ,  G06F3/0614 ,  G06F3/0632 ,  G06F3/0635 ,  G06F3/067 ,  H04L67/1097

摘要： There are connected a plurality of hosts 1 to L, a plurality of targets 1 to M and a plurality of initiators 1 to N, through a network. Each target has a managing unit which decides by itself the target search information broadcast from the initiator onto the network. In the case it is suited for data storage in the own target, data storage response information containing accepted priority information is broadcast onto the network. The target largest in priority value is notified of target selection from the initiator, thus effecting data storage.

摘要翻译： 通过网络连接多个主机1至L，多个目标1至M和多个发起者1至N。 每个目标具有管理单元，其自身决定从发起者广播到网络的目标搜索信息。 在适合于自己的目标中的数据存储的情况下，包含接受的优先级信息的数据存储响应信息被广播到网络上。 从发起者通知目标最大优先级值目标选择，从而实现数据存储。