公开(公告)号：US20060067006A1

公开(公告)日：2006-03-30

申请号：US11235084

申请日：2005-09-27

申请人： Masayuki Takagishi ,  Kotaro Yamamoto ,  Tomoko Taguchi

发明人： Masayuki Takagishi ,  Kotaro Yamamoto ,  Tomoko Taguchi

IPC分类号： G11B5/127 ,  G11B5/33

CPC分类号： G11B5/35

摘要： A magnetic head includes a read head including a read element and two layers of shields sandwiching the read element therebetween, and a write head including a main pole, a return yoke, and an exciting coil, in which at least one of each of the shields and the return yoke has an area of a bottom surface at least 1.2 times as large as an area of a top surface.

摘要翻译： 磁头包括读头，其包括读取元件和夹在其间的读取元件的两层屏蔽件，以及包括主极，返回轭和励磁线圈的写入头，其中每个屏蔽件 并且返回轭具有与顶表面的面积的至少1.2倍的底面的面积。

公开(公告)号：US20060139805A1

公开(公告)日：2006-06-29

申请号：US11315305

申请日：2005-12-23

申请人： Manabu Akamatsu ,  Kotaro Yamamoto

发明人： Manabu Akamatsu ,  Kotaro Yamamoto

IPC分类号： G11B5/82

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/59677 ,  G11B5/743 ,  G11B2005/0005

摘要： A magnetic disk of a magnetic disk apparatus includes a flat disk-shaped substrate having a recording region formed on at least one of front and back surfaces and patterned depending on the presence of a magnetic material. The recording region includes a data recording region, an annular landing region formed continuously to the data recording region, and a plurality of servo regions. The data recording region has a plurality of magnetic tracks extending in a circumferential direction of the substrate, respectively, and provided in the radial direction of the substrate at a predetermined pitch. The recording region includes a plurality of recognition tracks extending in the circumferential direction of the substrate, respectively and arranged in the radial direction of the substrate concentrically with the magnetic tracks at a visually recognizable pitch larger than the pitch of the magnetic tracks of the data recording region.

摘要翻译： 磁盘装置的磁盘包括具有形成在前表面和后表面中的至少一个上的记录区域并且根据磁性材料的存在而被图案化的扁平盘状基板。 记录区域包括数据记录区域，连续地形成数据记录区域的环形着陆区域和多个伺服区域。 数据记录区域具有分别沿着基板的圆周方向延伸并以预定间距沿基板的径向方向设置的多个磁迹。 记录区域包括多个识别轨道，分别沿着基板的周向方向延伸，并且以与视频可识别的间距大于磁记录数据的磁道的间距的方式，以与磁道同心的方式布置在基板的径向方向上 地区。

公开(公告)号：US6128160A

公开(公告)日：2000-10-03

申请号：US66102

申请日：1998-04-24

申请人： Kotaro Yamamoto

发明人： Kotaro Yamamoto

IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/39 ,  G11B5/48 ,  G11B5/33 ,  G11B5/03

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B2005/0008 ,  G11B2005/001 ,  G11B2005/0016 ,  G11B2005/3996 ,  G11B5/012 ,  G11B5/3967 ,  G11B5/4806

摘要： A read head of a head device used in a disk storage apparatus is provided including a spin-valve magnetoresistive (MR) element. The spin-valve MR element comprises a pinning magnetic layer of which magnetizing direction is determined, a free magnetic layer of which magnetizing direction can be shifted by a signal magnetic field derived from the disk, and a non-magnetic layer sandwiched between the pinning magnetic layer and the free magnetic layer. The head also includes a remagnetization layer which functions as a control element for correcting the magnetizing direction of the pinning magnetic layer.

公开(公告)号：US06462897B1

公开(公告)日：2002-10-08

申请号：US09638958

申请日：2000-08-16

申请人： Kotaro Yamamoto

发明人： Kotaro Yamamoto

IPC分类号： G11B503

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3903 ,  G11B5/3967 ,  G11B5/4806 ,  G11B2005/0008 ,  G11B2005/001 ,  G11B2005/0016 ,  G11B2005/3996

摘要： A read head of a head device used in a disk storage apparatus is provided including a spin-valve magnetoresistive (MR) element. The spin-valve MR element comprises a pinning magnetic layer of which magnetizing direction is determined, a free magnetic layer of which magnetizing direction can be shifted by a signal magnetic field derived from the disk, and a non-magnetic layer sandwiched between the pinning magnetic layer and the free magnetic layer. The head also includes a remagnetization layer which functions as a control element for correcting the magnetizing direction of the pinning magnetic layer.

摘要翻译： 提供了一种用于磁盘存储装置中的磁头装置的读取头，其包括自旋阀磁阻（MR）元件。 自旋阀MR元件包括确定磁化方向的钉扎磁性层，由磁盘导出的信号磁场可以偏移磁化方向的自由磁性层和夹在磁头之间的非磁性层 层和自由磁性层。 头部还包括作为用于校正钉扎磁性层的磁化方向的控制元件的再磁化层。

公开(公告)号：US20060007574A1

公开(公告)日：2006-01-12

申请号：US11180646

申请日：2005-07-14

申请人： Shuuichi Kojima ,  Makoto Asakura ,  Kotaro Yamamoto

发明人： Shuuichi Kojima ,  Makoto Asakura ,  Kotaro Yamamoto

IPC分类号： G11B5/09

CPC分类号： G11B5/59688 ,  G11B5/1278 ,  G11B5/59633

摘要： A patterned disk medium having a first surface and a second surface opposed to the first surface, includes a data pattern area formed in advance on each of the first surface and the second surface, a servo pattern area formed in advance like an arc in a radial direction, which divides the data pattern area in a plurality of pattern areas in a circumferential direction, and positioning marks formed used for positioning when the servo pattern area and the data pattern area are formed in advance.

摘要翻译： 具有与第一表面相对的第一表面和第二表面的图案化的盘介质包括在第一表面和第二表面中的每一个上预先形成的数据图案区域，预先形成为径向的弧形的伺服图案区域 方向，其在圆周方向上划分多个图案区域中的数据图案区域，以及当形成伺服图案区域和数据图案区域时形成的用于定位的定位标记。

公开(公告)号：US5982568A

公开(公告)日：1999-11-09

申请号：US925471

申请日：1997-09-09

申请人： Kotaro Yamamoto ,  Masaaki Habata

发明人： Kotaro Yamamoto ,  Masaaki Habata

IPC分类号： G11B5/012 ,  G11B5/255 ,  G11B5/31 ,  G11B5/39 ,  G11B5/40 ,  G11B19/04 ,  G11B27/36

CPC分类号： G11B19/04 ,  G11B27/36 ,  G11B5/313 ,  G11B5/40 ,  G11B5/012 ,  G11B5/3106 ,  G11B5/3967

摘要： A data storage system that uses a magnetic head assembly having a write head and a read head mounted on a slider to write on and read from a disk. A portion of the coil of the write head is used as a wear sensor for detecting wear on the surface of the slider. A head IC monitors the coil voltage and, when it goes lower than a reference voltage, detects the occurrence of a fault in the write head due to excessive wear on the slider surface. In response to the detection of the fault in the write head by the head IC, a control driver prohibits a write operation and saves data already recorded on the disk.

摘要翻译： 一种数据存储系统，其使用具有写入头和安装在滑动器上的读取头的磁头组件来写入和读取磁盘。 写头的线圈的一部分用作用于检测滑块表面上的磨损的磨损传感器。 磁头IC监视线圈电压，当其低于参考电压时，由于滑块表面上的过度磨损，可以检测写入头中的故障的发生。 响应于通过头IC检测写头中的故障，控制驱动器禁止写操作并且保存已经记录在盘上的数据。

公开(公告)号：US5825581A

公开(公告)日：1998-10-20

申请号：US722775

申请日：1996-09-27

申请人： Yasuhiro Morita ,  Kotaro Yamamoto

发明人： Yasuhiro Morita ,  Kotaro Yamamoto

IPC分类号： H04N5/765 ,  G11B5/012 ,  G11B5/596 ,  G11B21/08 ,  G11B21/21 ,  G11B33/14 ,  H04N5/781

CPC分类号： G11B5/59644 ,  G11B5/5547

摘要： A magnetic disk drive, which controls the seek and positioning of a magnetic head for recording and reproducing data to a specific position on the magnetic disk in accordance with the servo data recorded in the magnetic disk, comprises measuring means for measuring one of an atmospheric pressure and a height above sea level and head positioning control means for setting a seek speed in accordance with the measured values measuring by said measuring means, and for controlling the seek and positioning of the magnetic head to the specific position on the disk at the set seek speed.

摘要翻译： 磁盘驱动器，其根据记录在磁盘中的伺服数据，控制用于记录和再现数据到磁盘上的特定位置的磁头的寻找和定位，包括测量装置，用于测量大气压 和海拔高度以及头部定位控制装置，用于根据由所述测量装置测量的测量值来设定寻道速度，并且用于控制磁头在设定寻道时对盘上的特定位置的寻找和定位 速度。

公开(公告)号：US5636088A

公开(公告)日：1997-06-03

申请号：US346247

申请日：1994-11-23

申请人： Kotaro Yamamoto ,  Norio Yoshikawa ,  Masahito Yamaguchi ,  Masaaki Habata ,  Koji Osafune ,  Toshiaki Hattori ,  Toshikuni Sato

发明人： Kotaro Yamamoto ,  Norio Yoshikawa ,  Masahito Yamaguchi ,  Masaaki Habata ,  Koji Osafune ,  Toshiaki Hattori ,  Toshikuni Sato

IPC分类号： G11B5/49 ,  G11B5/48 ,  G11B5/55 ,  G11B5/60 ,  G11B21/21 ,  G11B21/24

CPC分类号： G11B5/4833 ,  G11B5/5565

摘要： The dimension ratio t/H of the thickness t of a flexure spring to the height (thickness) H of a slider 17 is set at 0.047 or less in order to reduce the variation in crown amount due to a temperature variation. As the ratio of the thickness t of the flexure spring to the height H of the slider decreases, the stress acting in the slider due to a difference in linear expansion coefficient between itself and the flexure spring decreases and the rigidity of the slider increases relative to the flexure spring. The dimension ratio H/L of the height H of the slider to the length L thereof is set at 0.245 or more. As the dimension ratio H/L increases, the rigidity of the slider increases and the amount of deformation of the slider due to a difference in linear expansion coefficient between itself and the flexure spring decreases. In addition, the ratio A2/A1 of an actual adhesion area A2 between the slider and a slider fixing portion of the flexure spring to a possible adhesion area A1 therebetween is reduced to 0.42 or less. Moreover, a temperature compensation member is adhered to the slider or the flexure spring.

摘要翻译： 弯曲弹簧的厚度t与滑块17的高度（厚度）H之间的尺寸比t / H被设定为0.047以下，以便减少由于温度变化引起的冠部量的变化。 随着弯曲弹簧的厚度t与滑块的高度H的比值的减小，由于自身与弯曲弹簧之间的线性膨胀系数的差异而在滑块上作用的应力减小，滑块的刚度相对于 弯曲弹簧。 滑块的高度H与其长度L的尺寸比H / L设定为0.245以上。 当尺寸比H / L增加时，滑块的刚度增加，并且由于其与弯曲弹簧之间的线膨胀系数的差异导致的滑块的变形量减小。 此外，滑块与挠曲弹簧的滑块固定部之间的实际粘合面积A2与其间可能的粘合面积A1的比率A2 / A1减小到0.42以下。 此外，温度补偿构件粘附到滑块或挠曲弹簧。