专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20110128648A1 METHOD AND APPARATUS FOR CONTROLLING HEAD WITH SPIN-TORQUE OSCILLATOR IN A DISK DRIVE 有权
标题翻译：用旋转扭矩振荡器控制磁头的方法和装置
公开(公告)号：US20110128648A1
公开(公告)日：2011-06-02
申请号：US12843723
申请日：2010-07-26
申请人： Toru EZAWA , Shuichi KOJIMA , Masahide KANEGAE , Kenichiro YAMADA , Katsuhiko KOUI , Masayuki TAKAGISHI
发明人： Toru EZAWA , Shuichi KOJIMA , Masahide KANEGAE , Kenichiro YAMADA , Katsuhiko KOUI , Masayuki TAKAGISHI
IPC分类号： G11B21/02
CPC分类号： G11B5/09 , G11B5/02 , G11B5/1278 , G11B5/314 , G11B2005/0005 , G11B2005/0024 , G11B2220/2516
摘要： According to one embodiment, an apparatus for controlling a head includes a transmitting module and a controller. The transmitting module is configured to transmit a write signal to a magnetic head having a spin torque oscillator at the time of recording data. The controller is configured to supply a drive signal that has a level higher than the ordinary level for a prescribed effective time, to the spin-torque oscillator in response to an input write gate that instructs the recording of data. During a period other than prescribed effective time, the controller supplies a drive signal having the ordinary level to the spin-torque oscillator.
摘要翻译：根据一个实施例，一种用于控制头部的装置包括发射模块和控制器。发送模块被配置为在记录数据时向具有自旋转矩振荡器的磁头发送写入信号。控制器被配置为响应于指示数据记录的输入写入门，向自旋转矩振荡器提供具有高于普通电平的电平达到规定有效时间的驱动信号。在规定的有效时间以外的期间，控制器向自旋转矩振荡器提供具有普通电平的驱动信号。

32. 发明申请

US20090306913A1 METHOD OF CALCULATING ION IMPLANTATION DISTRIBUTION AND PROGRAM IMPLEMENTING THE CALCULATION METHOD 审中-公开
标题翻译：计算离子植入分布方法和程序实现计算方法
公开(公告)号：US20090306913A1
公开(公告)日：2009-12-10
申请号：US12543965
申请日：2009-08-19
申请人： Kunihiro Suzuki , Shuichi Kojima
发明人： Kunihiro Suzuki , Shuichi Kojima
IPC分类号： G06F19/00 , G01N23/00
CPC分类号： H01L22/20 , H01L21/265 , H01L22/12
摘要： A method of calculating an ion concentration distribution is provided. The method includes: setting meshes at regular intervals d along a beam axis of a beam implanted at a tilt angle α; making mesh intervals on a surface d/sinα; generating meshes parallel and perpendicular to the beam axis in a simulator; and calculating an ion concentration distribution by using the meshes.
摘要翻译：提供了计算离子浓度分布的方法。该方法包括：以沿倾斜角度α注入的光束的光束轴以规则的间隔d设置网格; 在表面d / sinalpha上形成网格间隔; 在模拟器中产生平行且垂直于光束轴的网格; 以及通过使用所述网格计算离子浓度分布。

33. 发明授权

US07466086B2 Motor drive unit 失效
标题翻译：电机驱动单元
公开(公告)号：US07466086B2
公开(公告)日：2008-12-16
申请号：US11485025
申请日：2006-07-12
申请人： Mitsuyuki Kiuchi , Sadayuki Tamae , Hisashi Hagiwara , Masahiro Suzuki , Shuichi Kojima
发明人： Mitsuyuki Kiuchi , Sadayuki Tamae , Hisashi Hagiwara , Masahiro Suzuki , Shuichi Kojima
IPC分类号： H02P5/00
CPC分类号： H02P21/06 , H02P5/74 , H02P5/747
摘要： A motor drive unit comprises a DC power source, a plurality of inverter circuits for converting the a power of this DC power source to an AC power, current detectors for detecting an output current of at least one of those plurality of inverter circuits and a controller for performing PWM control of those plurality of inverter circuits. This controller is constructed in a way to synchronize a PWM period of the plurality of inverter circuits, so as to drive a plurality of motors at once by means of those plurality of inverter circuits respectively.
摘要翻译：电动机驱动单元包括直流电源，将该直流电源的功率转换为交流电的多个逆变器电路，用于检测这些多个逆变器电路中的至少一个的输出电流的电流检测器和控制器用于执行那些多个逆变器电路的PWM控制。该控制器以使多个逆变器电路的PWM周期同步的方式构成，以分别通过那些多个反相器电路一次驱动多个电动机。

34. 发明授权

US07230803B2 Magnetic head with magnetic domain control structure having anti-ferromagnetic layer and plural magnetic layers 失效
标题翻译：具有磁畴控制结构的磁头具有反铁磁层和多个磁性层
公开(公告)号：US07230803B2
公开(公告)日：2007-06-12
申请号：US10771312
申请日：2004-02-05
申请人： Akira Morinaga , Koichi Nishioka , Takayoshi Ohtsu , Norifumi Miyamoto , Shuichi Kojima
发明人： Akira Morinaga , Koichi Nishioka , Takayoshi Ohtsu , Norifumi Miyamoto , Shuichi Kojima
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： A magneto-resistive effect head including: an antiferromagnetic layer; a pinned layer which is formed on the antiferromagnetic layer and whose magnetizing direction has been fixed; a spacer formed on the pinned layer; a free layer formed on the spacer; and magnetic domain control layers having antiferromagnetic flims and magnet layers for performing a magnetic domain control of the free layer; wherein the each of the antiferromagnetjc films is formed on the free layer; wherein the each of magnet layers has at least two magnetic films coupled anti-ferromagnetically through at least one nonmagnetic film; a pair of lead layers for supplying a current to the stack of layers; and wherein seed layers are formed between the antiferromagnetic films and the lead layers.
摘要翻译：磁阻效应头包括：反铁磁层; 形成在反铁磁层上并且其磁化方向已被固定的钉扎层; 形成在被钉扎层上的间隔物; 形成在间隔物上的自由层; 以及磁畴控制层，其具有用于对自由层进行磁畴控制的反铁磁性薄膜和磁铁层; 其中每个反铁磁膜形成在自由层上; 其中每个磁体层具有至少两个通过至少一个非磁性膜反铁磁耦合的磁膜; 一对用于向层叠层提供电流的引线层; 并且其中在反铁磁膜和引线层之间形成种子层。

35. 发明授权

US06717778B2 Spin-valve giant magnetoresistive head and method of manufacturing the same 失效
标题翻译：旋转阀巨磁阻头及其制造方法
公开(公告)号：US06717778B2
公开(公告)日：2004-04-06
申请号：US09931255
申请日：2001-08-17
申请人： Masatoshi Arasawa , Haruko Tanaka , Makoto Morijiri , Koichi Nishioka , Shuichi Kojima , Masayasu Kagawa
发明人： Masatoshi Arasawa , Haruko Tanaka , Makoto Morijiri , Koichi Nishioka , Shuichi Kojima , Masayasu Kagawa
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3116 , G11B5/3163 , G11B5/3166 , G11B5/3903 , G11B5/3906 , G11B5/398 , G11B2005/3996 , Y10T29/49021 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： Multiple thin films of spin-valve GMR sensor are formed in a trapezoidal cross-sectional shape by laminating an antiferromagnetic layer, a pinned magnetic layer, a nonmagnetic conductive layer, a free magnetic layer and a nonmagnetic protective layer on a lower insulated gap layer. The amount of etching of the lower insulated gap layer produced in the process of patterning the spin-valve giant magnetoresistive layers into the multiple thin films of spin-valve GMR sensor is 10 nm or less. Further, the angle &thgr; which the tangent line of each side face of the multiple thin films to the middle line of the free magnetic layer in its thickness direction forms with respect to the middle line of the free magnetic layer becomes 45 degrees or more. This structure makes it possible to provide such a spin-valve giant magnetoresistive head that it meets the requirements for securing constant breakdown voltage and preventing instability of MR output voltage waveform.
摘要翻译：通过在下绝缘间隙层上层叠反铁磁层，钉扎磁性层，非磁性导电层，自由磁性层和非磁性保护层，形成梯形截面形状的多个自旋阀GMR传感器薄膜。在将自旋阀巨磁阻层图案化成自旋阀GMR传感器的多个薄膜的过程中产生的下绝缘间隙层的蚀刻量为10nm以下。此外，相对于自由磁性层的中间线，多个薄膜的每个侧面的切线与自由磁性层的中间线在其厚度方向上形成的角度θ成为45度以上。这种结构使得可以提供这样的自旋阀巨磁阻头，其满足确保恒定击穿电压的要求并防止MR输出电压波形的不稳定性。

36. 发明授权

US5092368A Cloth roller replacement system for weaving machine 失效
标题翻译：织机滚筒更换系统
公开(公告)号：US5092368A
公开(公告)日：1992-03-03
申请号：US544527
申请日：1990-06-27
申请人： Kazuhiro Tanaka , Shuichi Kojima , Susumu Kaneko , Takayuki Chikuma
发明人： Kazuhiro Tanaka , Shuichi Kojima , Susumu Kaneko , Takayuki Chikuma
IPC分类号： B65H19/22 , B65H23/198 , D03D49/00 , D03D49/20 , D03J1/00
CPC分类号： D03J1/00 , D03D49/00 , Y10S414/124
摘要： A cloth roller replacement system for at least one weaving machine, includes an actuating system for removing a full cloth roller from the machine and then installing an empty cloth roller in its place. The system further includes an instrument for measuring a fabric take-up quantity of the machine, a device for presetting a timing for preparation, and a controller for preliminarily making the actuating system ready for replacement at the preset timing for preparation, and then controlling the actuating system to perform the cloth roller replacement without stopping the machine.

37. 发明申请

US20130318295A1 DISK STORAGE APPARATUS AND WRITE METHOD 有权
标题翻译：磁盘存储设备和写入方法
公开(公告)号：US20130318295A1
公开(公告)日：2013-11-28
申请号：US13599848
申请日：2012-08-30
申请人： Shuichi Kojima
发明人： Shuichi Kojima
IPC分类号： G06F12/00
CPC分类号： G11B20/10009
摘要： According to one embodiment, a disk storage apparatus includes a write controller and a refresh controller. The write controller is configured to perform shingled write, writing data on a disk, using, as write units, data areas including groups of tracks. The refresh controller is configured to count the number of times the shingled write has been performed in a data area adjacent to the inner or outer circumference of a data area, in accordance with a weighting value set on the basis of a shingled write direction, and to instructs that a refresh process be performed, when the number of times counted exceeds a threshold value.
摘要翻译：根据一个实施例，盘存储装置包括写入控制器和刷新控制器。写入控制器被配置为执行带状闪烁的写入，在盘上写入数据，使用包括磁道组的数据区作为写入单元。刷新控制器被配置为根据基于带有乱写的写入方向设置的加权值来对与数据区域的内部或外部周围相邻的数据区域中执行带符号写入的次数进行计数，以及指示当计数次数超过阈值时执行刷新处理。

38. 发明授权

US07957109B2 Magnetic head of magnetoresistance effect type with high resistance to external stress 有权
标题翻译：具有高耐外部应力的磁阻效应型磁头
公开(公告)号：US07957109B2
公开(公告)日：2011-06-07
申请号：US11900533
申请日：2007-09-11
申请人： Naoki Koyama , Koichi Nishioka , Kouji Okazaki , Shuichi Kojima , Azusa Hori , Satoshi Shigematsu , Yukimasa Okada
发明人： Naoki Koyama , Koichi Nishioka , Kouji Okazaki , Shuichi Kojima , Azusa Hori , Satoshi Shigematsu , Yukimasa Okada
IPC分类号： G11B5/39 , G11B5/127
CPC分类号： G11B5/39
摘要： A tunnel magnetoresistance effect magnetic head having between magnetic shield layers, an antiferromagnetic layer, a pinned layer which has the direction of magnetization pinned by exchange coupling with the antiferromagnetic layer, an insulating layer, and a free layer whose direction of magnetization rotates relatively to external magnetic fields, wherein the antiferromagnetic layer is of an antiferromagnetic substance composed mainly of IrMn, the pinned layer is made up of a first pinned layer of CoFe alloy in contact with the antiferromagnetic layer and a second pinned layer of CoFeB alloy which is antiferromagnetically coupled with the first pinned layer, and the first and second pinned layers have the amount of magnetization such that the difference M1−M2 is in the range of 0
摘要翻译：具有磁屏蔽层之间的隧道磁阻效应磁头，反铁磁层，具有通过与反铁磁层交换耦合固定的磁化方向的被钉扎层，绝缘层和磁化方向相对于外部的自由层磁场，其中反铁磁层是主要由IrMn组成的反铁磁性物质，被钉扎层由与反铁磁层接触的第一CoFe合金层和与铁磁性合金反铁磁合金的第二被钉扎层组成第一被钉扎层，并且第一和第二钉扎层具有磁化量，使得差值M1-M2在0

39. 发明申请

US20080297940A1 METHOD AND APPARATUS FOR CONTROLLING A NONVOLATILE MEMORY IN A DISK DRIVE 审中-公开
标题翻译：用于控制磁盘驱动器中的非易失性存储器的方法和装置
公开(公告)号：US20080297940A1
公开(公告)日：2008-12-04
申请号：US12110757
申请日：2008-04-28
申请人： Shuichi Kojima
发明人： Shuichi Kojima
IPC分类号： G11B21/02
CPC分类号： G11B5/024 , G11B5/5547 , G11B19/044
摘要： According to one embodiment, in a disk drive having a disk and a flash memory, the disk controller controls the timing of performing a block erase when the flash memory is accessed, so that this timing may differ from the timing of a seek operation that is performed when the disk is accessed. This prevents the current flowing in the disk drive from exceeding the maximum operating current.
摘要翻译：根据一个实施例，在具有盘和闪速存储器的磁盘驱动器中，当控制闪速存储器访问时，盘控制器控制执行块擦除的定时，使得该定时可能与寻址操作的定时不同，在访问磁盘时执行。这防止在磁盘驱动器中流动的电流超过最大工作电流。

40. 发明授权

US07274541B2 Magnetic thin film head, the fabrication method, and magnetic disk 失效
标题翻译：磁性薄膜头，制造方法和磁盘
公开(公告)号：US07274541B2
公开(公告)日：2007-09-25
申请号：US11095533
申请日：2005-04-01
申请人： Gen Oikawa , Shuichi Kojima , Harunobu Saito , Noriyuki Saiki , Masayasu Kagawa , Akira Kondo , Kenji Ishikake , Hiromi Shiina
发明人： Gen Oikawa , Shuichi Kojima , Harunobu Saito , Noriyuki Saiki , Masayasu Kagawa , Akira Kondo , Kenji Ishikake , Hiromi Shiina
IPC分类号： G11B5/147 , G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3103 , G11B5/3113 , G11B5/3163 , G11B5/3967 , G11B2005/3996 , Y10T29/49032 , Y10T29/49044
摘要： In formation of an upper shield of a magnetic thin film head by electroplating, a current density of electroplating is regulated stepwise with time. Thus, in the upper shield formation, a film composition and magnetic characteristic with respect to the direction of film thickness can be controlled precisely, making it possible to provide a magnetic thin film head featuring significantly reduced noise-after-write and output fluctuation.
摘要翻译：在通过电镀形成磁性薄膜头的上屏蔽时，电流的电流密度随时间逐步调节。因此，在上屏蔽形成中，可以精确地控制膜组成和相对于膜厚度方向的磁特性，使得可以提供具有显着降低的写入后和输出波动的磁性薄膜头。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式