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1. 发明授权

US07561369B2 Drive unit 失效
标题翻译：驱动单元
公开(公告)号：US07561369B2
公开(公告)日：2009-07-14
申请号：US11894873
申请日：2007-08-21
申请人： Kazuaki Usui , Masashi Kisaka , Hidefumi Tominaga , Koumei Hanaoka , Masaki Nagashima
发明人： Kazuaki Usui , Masashi Kisaka , Hidefumi Tominaga , Koumei Hanaoka , Masaki Nagashima
IPC分类号： G11B5/596
CPC分类号： G11B5/59627
摘要： Embodiments in accordance with the present invention provide a drive unit that is capable of satisfactorily performing the positioning control with disturbance components included in a position error signal being effectively controlled. According to one embodiment, an error signal generator of a drive unit generates a position error signal (PES) on the basis of servo data read out from a magnetic disk. On the assumption that a frequency of a periodic variation component included in the PES is a target frequency, if a target frequency deviates from an effective frequency range of a digital filter, a downsampler down-samples the PES, and then supplies the PES to the digital filter so that the effective frequency range is shifted. As a result, within the shifted effective frequency range, a setting changing unit can control a setting frequency of the digital filter so that the setting frequency follows the target frequency. Therefore, it is possible to effectively reduce a signal component of the target frequency (a periodic variation component included in the PES).
摘要翻译：根据本发明的实施例提供一种驱动单元，其能够令人满意地执行定位控制，其中包括在有效控制的位置误差信号中的扰动分量。根据一个实施例，驱动单元的误差信号发生器基于从磁盘读出的伺服数据产生位置误差信号（PES）。假设PES中包含的周期性变化分量的频率是目标频率，则如果目标频率偏离数字滤波器的有效频率范围，则下采样器对PES进行下采样，然后将PES提供给数字滤波器，使有效频率范围发生变化。结果，在移动的有效频率范围内，设定改变单元可以控制数字滤波器的设定频率，使得设定频率跟随目标频率。因此，有可能有效地降低目标频率的信号分量（包括在PES中的周期性变化分量）。

2. 发明申请

US20080297942A1 Drive unit 失效
标题翻译：驱动单元
公开(公告)号：US20080297942A1
公开(公告)日：2008-12-04
申请号：US11894873
申请日：2007-08-21
申请人： Kazuaki Usui , Masashi Kisaka , Hidefumi Tominaga , Koumei Hanaoka , Masaki Nagashima
发明人： Kazuaki Usui , Masashi Kisaka , Hidefumi Tominaga , Koumei Hanaoka , Masaki Nagashima
IPC分类号： G11B5/596
CPC分类号： G11B5/59627
摘要： Embodiments in accordance with the present invention provide a drive unit that is capable of satisfactorily performing the positioning control with disturbance components included in a position error signal being effectively controlled. According to one embodiment, an error signal generator of a drive unit generates a position error signal (PES) on the basis of servo data read out from a magnetic disk. On the assumption that a frequency of a periodic variation component included in the PES is a target frequency, if a target frequency deviates from an effective frequency range of a digital filter, a downsampler down-samples the PES, and then supplies the PES to the digital filter so that the effective frequency range is shifted. As a result, within the shifted effective frequency range, a setting changing unit can control a setting frequency of the digital filter so that the setting frequency follows the target frequency. Therefore, it is possible to effectively reduce a signal component of the target frequency (a periodic variation component included in the PES).
摘要翻译：根据本发明的实施例提供一种驱动单元，其能够令人满意地执行定位控制，其中包括在有效控制的位置误差信号中的扰动分量。根据一个实施例，驱动单元的误差信号发生器基于从磁盘读出的伺服数据产生位置误差信号（PES）。假设PES中包含的周期性变化分量的频率是目标频率，则如果目标频率偏离数字滤波器的有效频率范围，则下采样器对PES进行下采样，然后将PES提供给数字滤波器，使有效频率范围发生变化。结果，在移动的有效频率范围内，设定改变单元可以控制数字滤波器的设定频率，使得设定频率跟随目标频率。因此，有可能有效地降低目标频率的信号分量（包括在PES中的周期性变化分量）。

3. 发明授权

US08154823B2 Information recording and reproducing apparatus, information recording and reproducing system, information processing apparatus and information reproducing apparatus 有权
标题翻译：信息记录和再现装置，信息记录和再现系统，信息处理装置和信息再现装置
公开(公告)号：US08154823B2
公开(公告)日：2012-04-10
申请号：US12486014
申请日：2009-06-17
申请人： Hideki Saga , Masaki Nagashima
发明人： Hideki Saga , Masaki Nagashima
IPC分类号： G11B5/596
CPC分类号： G11B5/5552 , G11B5/596
摘要： An information recording and reproducing apparatus 1 having a high efficiency of information transfer includes one or more recording media forming a plurality of recording surfaces, a plurality of heads respectively disposed on the recording surfaces, a first actuator for supporting the heads and moving the heads uniformly, a plurality of second actuators provided one for an associated one of the heads, the second actuators moving the heads independently relative to the first actuator, recording processing circuits for simultaneously outputting recording signals, and reproducing processing circuits simultaneously supplied with reproduced signals read out by the heads to reproduce information from the reproduced signals.
摘要翻译：具有高信息传递效率的信息记录和再现装置1包括形成多个记录表面的一个或多个记录介质，分别设置在记录表面上的多个记录头，用于支撑头部并均匀地移动头部的第一致动器，多个第二致动器，其设置为一个用于相关联的一个头部，第二致动器相对于第一致动器独立地移动头部，用于同时输出记录信号的记录处理电路，以及再现处理电路，同时提供由磁头从再现的信号中再现信息。

4. 发明授权

US09052242B2 Device and method for measuring surface temperature of cast piece 有权
标题翻译：铸件表面温度测量装置及方法
公开(公告)号：US09052242B2
公开(公告)日：2015-06-09
申请号：US13264056
申请日：2010-01-08
申请人： Hiroshi Harada , Masanori Yamana , Atsushi Saida , Masaki Nagashima , Tomohiro Konno
发明人： Hiroshi Harada , Masanori Yamana , Atsushi Saida , Masaki Nagashima , Tomohiro Konno
IPC分类号： G01K7/00 , G01K7/02 , G01K11/00 , G01K7/38 , B22D2/00
CPC分类号： G01K7/38 , B22D2/006 , G01K2217/00
摘要： A cast piece surface temperature measuring device includes: a magnetic field exciting device which applies an AC magnetic field substantially perpendicular to a surface of a cast piece; a magnetic field detecting device which detects the AC magnetic field to detect a magnetic flux varied in response to a surface temperature of the cast piece; and a surface temperature deriving device which derives the surface temperature of the cast piece based on an induced electromotive force obtained by detecting the AC magnetic field by the magnetic field detecting device and a predetermined relation data. The magnetic field exciting device includes a solenoidal excitation coil, the magnetic field detecting device includes a solenoidal detection coil interposed between the surface of the cast piece and the excitation coil, and the relation data indicates a correspondence relationship between the surface temperature of the cast piece and the induced electromotive force in a temperature range including a predetermined Curie point.
摘要翻译：铸件表面温度测量装置包括：施加基本垂直于铸件表面的交流磁场的磁场激励装置; 磁场检测装置，其检测AC磁场以检测响应于铸件的表面温度而变化的磁通量; 以及表面温度导出装置，其基于通过由磁场检测装置检测交流磁场和预定关系数据而获得的感应电动势导出铸件的表面温度。磁场激励装置包括螺线管励磁线圈，磁场检测装置包括插入在铸件表面和励磁线圈之间的螺线管检测线圈，关系数据表示铸件表面温度之间的对应关系以及在包括预定居里点的温度范围内的感应电动势。

5. 发明申请

US20120038353A1 DEVICE AND METHOD FOR MEASURING SURFACE TEMPERATURE OF CAST PIECE 有权
标题翻译：用于测量铸件表面温度的装置和方法
公开(公告)号：US20120038353A1
公开(公告)日：2012-02-16
申请号：US13264056
申请日：2010-01-08
申请人： Hiroshi Harada , Masanori Yamana , Atsushi Saida , Masaki Nagashima , Tomohiro Konno
发明人： Hiroshi Harada , Masanori Yamana , Atsushi Saida , Masaki Nagashima , Tomohiro Konno
IPC分类号： G01R33/12
CPC分类号： G01K7/38 , B22D2/006 , G01K2217/00
摘要： A cast piece surface temperature measuring device includes: a magnetic field exciting device which applies an AC magnetic field substantially perpendicular to a surface of a cast piece; a magnetic field detecting device which detects the AC magnetic field to detect a magnetic flux varied in response to a surface temperature of the cast piece; and a surface temperature deriving device which derives the surface temperature of the cast piece based on an induced electromotive force obtained by detecting the AC magnetic field by the magnetic field detecting device and a predetermined relation data. The magnetic field exciting device includes a solenoidal excitation coil, the magnetic field detecting device includes a solenoidal detection coil interposed between the surface of the cast piece and the excitation coil, and the relation data indicates a correspondence relationship between the surface temperature of the cast piece and the induced electromotive force in a temperature range including a predetermined Curie point.
摘要翻译：铸件表面温度测量装置包括：施加基本垂直于铸件表面的交流磁场的磁场激励装置; 磁场检测装置，其检测AC磁场以检测响应于铸件的表面温度而变化的磁通量; 以及表面温度导出装置，其基于通过由磁场检测装置检测交流磁场和预定关系数据而获得的感应电动势导出铸件的表面温度。磁场激励装置包括螺线管励磁线圈，磁场检测装置包括插入在铸件表面和励磁线圈之间的螺线管检测线圈，关系数据表示铸件表面温度之间的对应关系以及在包括预定居里点的温度范围内的感应电动势。

6. 发明授权

US07869157B2 Magnetic disk drive having dual actuator 有权
标题翻译：具有双驱动器的磁盘驱动器
公开(公告)号：US07869157B2
公开(公告)日：2011-01-11
申请号：US12482213
申请日：2009-06-10
申请人： Masaki Nagashima , Shinsuke Nakagawa
发明人： Masaki Nagashima , Shinsuke Nakagawa
IPC分类号： G11B5/596
CPC分类号： G11B5/5552 , G11B5/5565 , G11B5/596
摘要： In a dual-stage actuator magnetic drive having a coarse actuator and a fine actuator, an amplitude level of a command signal for the fine actuator during a decoupling-path control depends on a gain of an applied fine actuator model. The fine actuator model gain depends on the amplitude level of the fine actuator command signal and needs to be calibrated to avoid performance degradation. The gain is calibrated by determining a deviation of the fine actuator model gain from the fine actuator gain during decoupling-path control. This deviation is obtained by comparing gain values of the open-loop transfer functions measured for the decoupling-path control case and the single coarse actuator control case with respect to the feedback loop of the coarse actuator at an excitation signal frequency, when the excitation signal is added to the coarse actuator.
摘要翻译：在具有粗略致动器和精细致动器的双级致动器磁驱动器中，在去耦路径控制期间精细致动器的命令信号的幅度水平取决于所施加的精细致动器模型的增益。精细致动器型号增益取决于精细致动器命令信号的幅度水平，需要进行校准，以避免性能下降。通过在去耦路径控制期间确定精细致动器模型增益与精细致动器增益的偏差来校准增益。该偏差是通过将激励信号频率下的关于去耦路径控制情况测量的开环传递函数的增益值和粗略致动器控制情况相对于粗调制器的反馈回路进行比较的，当激励信号被添加到粗致动器。

7. 发明申请

US20090310250A1 Magnetic Disk Drive Having Dual Actuator 有权
标题翻译：具有双驱动器的磁盘驱动器
公开(公告)号：US20090310250A1
公开(公告)日：2009-12-17
申请号：US12482213
申请日：2009-06-10
申请人： Masaki Nagashima , Shinsuke Nakagawa
发明人： Masaki Nagashima , Shinsuke Nakagawa
IPC分类号： G11B5/596
CPC分类号： G11B5/5552 , G11B5/5565 , G11B5/596
摘要： In a dual-stage actuator magnetic drive having a coarse actuator and a fine actuator, an amplitude level of a command signal for the fine actuator during a decoupling-path control depends on a gain of an applied fine actuator model. The fine actuator model gain depends on the amplitude level of the fine actuator command signal and needs to be calibrated to avoid performance degradation. The gain is calibrated by determining a deviation of the fine actuator model gain from the fine actuator gain during decoupling-path control. This deviation is obtained by comparing gain values of the open-loop transfer functions measured for the decoupling-path control case and the single coarse actuator control case with respect to the feedback loop of the coarse actuator at an excitation signal frequency, when the excitation signal is added to the coarse actuator.
摘要翻译：在具有粗略致动器和精细致动器的双级致动器磁驱动器中，在去耦路径控制期间精细致动器的命令信号的幅度水平取决于所施加的精细致动器模型的增益。精细致动器型号增益取决于精细致动器命令信号的幅度水平，需要进行校准，以避免性能下降。通过在去耦路径控制期间确定精细致动器模型增益与精细致动器增益的偏差来校准增益。该偏差是通过将激励信号频率下的关于去耦路径控制情况测量的开环传递函数的增益值和粗略致动器控制情况相对于粗调制器的反馈回路进行比较的，当激励信号被添加到粗致动器。

8. 发明申请

US20100053798A1 Information Recording and Reproducing Apparatus, Information Recording and Reproducing System, Information Processing Apparatus and Information Reproducing Apparatus 有权
标题翻译：信息记录和再现装置，信息记录和再现系统，信息处理装置和信息再现装置
公开(公告)号：US20100053798A1
公开(公告)日：2010-03-04
申请号：US12486014
申请日：2009-06-17
申请人： Hideki SAGA , Masaki Nagashima
发明人： Hideki SAGA , Masaki Nagashima
IPC分类号： G11B21/02
CPC分类号： G11B5/5552 , G11B5/596
摘要： An information recording and reproducing apparatus 1 having a high efficiency of information transfer includes one or more recording media forming a plurality of recording surfaces, a plurality of heads respectively disposed on the recording surfaces, a first actuator for supporting the heads and moving the heads uniformly, a plurality of second actuators provided one for an associated one of the heads, the second actuators moving the heads independently relative to the first actuator, recording processing circuits for simultaneously outputting recording signals, and reproducing processing circuits simultaneously supplied with reproduced signals read out by the heads to reproduce information from the reproduced signals.
摘要翻译：具有高信息传递效率的信息记录和再现装置1包括形成多个记录表面的一个或多个记录介质，分别设置在记录表面上的多个记录头，用于支撑头部并均匀地移动头部的第一致动器，多个第二致动器，其设置为一个用于相关联的一个头部，第二致动器相对于第一致动器独立地移动头部，用于同时输出记录信号的记录处理电路，以及再现处理电路，同时提供由磁头从再现的信号中再现信息。

9. 发明授权

US5954854A Method for recovering etchant from etching waste liquid containing iron chloride 失效
标题翻译：从蚀刻含有氯化铁的废液中回收蚀刻剂的方法
公开(公告)号：US5954854A
公开(公告)日：1999-09-21
申请号：US883630
申请日：1997-06-26
申请人： Tsutomu Inoshita , Tadao Kitazawa , Hiroyuki Matsumoto , Masaki Nagashima , Hiroshi Yoshino , Yonejiro Nagaoka , Katsumasa Mito
发明人： Tsutomu Inoshita , Tadao Kitazawa , Hiroyuki Matsumoto , Masaki Nagashima , Hiroshi Yoshino , Yonejiro Nagaoka , Katsumasa Mito
IPC分类号： C22B3/46 , C23F1/46
CPC分类号： C22B3/46 , C23F1/46 , Y02P10/234 , Y10S210/912
摘要： Method for recovering etchant from etching waste liquid 11 containing iron chloride is disclosed, wherein iron powder is mixed with iron chloride waste solution containing metal ions having a lesser ionization tendency than iron ion in an mixing vessel so as to cause a reaction between the iron powder and the metal ions and remove the precipitated metal from the iron chloride waste solution. The etching waste liquid 11 containing iron chloride or the iron chloride waste liquid which is an intermediate of the etching waste liquid 11 containing iron chloride is supplied to the mixing vessel from the bottom of the mixing vessel, an iron-powder processed liquid which comes up through a fluidized bed is continuously taken out from the mixing vessel and is returned to the bottom portion of mixing vessel so as to form the fluidized bed in the mixing vessel, and metal ions having the lesser ionization tendency than iron ion are removed from the etching waste liquid 11 containing iron chloride or the iron chloride waste liquid to produce the iron-powder processed liquid.
摘要翻译：公开了从蚀刻含有氯化铁的废液11中回收蚀刻剂的方法，其中铁粉与混合容器中含有比铁离子电离倾向较小的金属离子的氯化铁废溶液混合，以引起铁粉和金属离子，并从氯化铁废液中除去沉淀的金属。含有氯化铁的蚀刻废液11或作为含有氯化铁的蚀刻废液11的中间体的氯化铁废液从混合容器的底部供给到混合容器中，出现铁粉处理液通过流化床从混合容器中连续取出并返回到混合容器的底部，以在混合容器中形成流化床，并且从蚀刻中去除具有比铁离子更小的电离倾向的金属离子含有氯化铁或氯化铁废液的废液11产生铁粉处理液。

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