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1. 发明申请

US20120075742A1 MAGNETIC DISK DEVICE, ELECTRONIC APPARATUS AND, HEAD CONTROL METHOD 审中-公开
标题翻译：磁盘设备，电子设备和头控制方法
公开(公告)号：US20120075742A1
公开(公告)日：2012-03-29
申请号：US13051176
申请日：2011-03-18
申请人： Shinji Takakura , Shigen Yasunaka , Yoshiyuki Ishihara
发明人： Shinji Takakura , Shigen Yasunaka , Yoshiyuki Ishihara
IPC分类号： G11B21/02
CPC分类号： G11B5/5547
摘要： A magnetic disk device includes a head, a coil motor, a drive circuit, a voltage detector, a head position calculation unit, a velocity calculation unit, a counter electromotive voltage calculation unit, a coil resistance estimation unit, and a control unit. The head position calculation unit calculates a position of the head for each sampling cycle on the basis of servo information. The velocity calculation unit calculates a velocity of the head for each sampling cycle. The counter electromotive voltage calculation unit calculates a counter electromotive voltage of the coil for each sampling cycle. The coil resistance estimation unit successively estimates a coil resistance value of the coil. The control unit calculates a drive instruction for controlling the velocity and outputs the drive instruction to the drive circuit. In addition, the counter electromotive voltage calculation unit subtracts a voltage drop from the inter-terminal voltage to calculate the counter electromotive voltage.
摘要翻译：磁盘装置包括磁头，线圈电机，驱动电路，电压检测器，磁头位置计算单元，速度计算单元，反电动势电压计算单元，线圈电阻估计单元和控制单元。头位置计算单元基于伺服信息计算每个采样周期的头部的位置。速度计算单元计算每个采样周期的头部的速度。反电动势电压计算单元在每个采样周期中计算线圈的反电动势电压。线圈电阻估计单元连续地估计线圈的线圈电阻值。控制单元计算用于控制速度的驱动指令，并将驱动指令输出到驱动电路。此外，反电动势电压计算单元从端子间电压减去电压降以计算反电动势电压。

2. 发明授权

US08082652B2 Method of manufacturing molding die 有权
标题翻译：成型模具的制造方法
公开(公告)号：US08082652B2
公开(公告)日：2011-12-27
申请号：US11884906
申请日：2006-02-22
申请人： Shinji Takakura , Takashi Suzuki , Hiroyuki Sadakuni
发明人： Shinji Takakura , Takashi Suzuki , Hiroyuki Sadakuni
IPC分类号： B23P17/00 , B22C9/02
CPC分类号： B22C21/14 , B22C7/02 , B29C44/58 , Y10T29/49988 , Y10T29/49993 , Y10T29/49996
摘要： There are provided a method of manufacturing a molding die that can prevent occurrence of a trouble, such as break of a sand mold when a master mold is pulled out, and a molding die that can clearly transfer a pattern onto a molding. A meshed member is fixed to an entirety or part of a molding surface of a master mold, a sand mold having a molding surface with a protrusion and recess pattern thereon is fabricated by using the master mold, and a molding die having a molding surface with the protrusion and recess pattern thereon is cast by using the sand mold. The meshed member is made up of a flexible synthetic resin sheet having a number of mesh openings.
摘要翻译：提供了一种制造成型模具的方法，其能够防止在拉出主模具时发生诸如砂模的断裂等故障，以及可以将图案清楚地转印到模制品上的成型模具。网状构件固定在母模的成形面的整体或一部分上，通过使用母模，制造具有其上具有突起和凹部图案的模制表面的砂模，以及具有模制表面的模具其上的突起和凹陷图案通过使用砂模铸造。网状构件由具有多个网孔的柔性合成树脂片构成。

3. 发明授权

US08016340B2 Floor spacer for vehicle 有权
标题翻译：车辆地垫
公开(公告)号：US08016340B2
公开(公告)日：2011-09-13
申请号：US12226665
申请日：2007-04-24
申请人： Shinji Takakura , Ayumi Hiraishi , Isao Suzuki
发明人： Shinji Takakura , Ayumi Hiraishi , Isao Suzuki
IPC分类号： B60N3/04 , B62D25/20
CPC分类号： B60N3/048 , B60R13/083
摘要： A floor spacer for a vehicle constituted of an expanded resin molded article which can simultaneously satisfy sound absorbing performance while satisfying desired compression strength and reduction in weight is provided. A floor spacer A for a vehicle is constituted of a floor spacer main body 10 constituted of an expanded resin molded article having flat plate portions 12a and 12b to be on an inner side of a compartment, and a plurality of ridges 13a and 13b vertically provided at back surfaces of the flat plate portions 12a and 12b on a floor frame side, and a layer constituted of a sound absorbing material 20 formed to fill spaces 14a and 14b formed between the aforesaid ridges 13a and 13b. Through-holes 15 may be formed in the flat plate portions 12a and 12b of the floor spacer main body 10, and fastening holes 16 which a part of the sound absorbing material 20 enters may be formed in the ridges 13a and 13b.
摘要翻译：提供一种用于车辆的地板间隔件，其由能够同时满足吸音性能同时满足期望的压缩强度和减轻重量的发泡树脂模制品构成。用于车辆的地板间隔件A由具有平板部分12a和12b的扩展树脂模塑制品构成的地板间隔件主体10构成，该平板部分12a和12b位于隔室的内侧，以及垂直设置的多个脊13a和13b 在地板框架侧的平板部分12a和12b的后表面，以及形成为填充形成在上述脊13a和13b之间的空间14a和14b的吸声材料20的层。可以在地板间隔件主体10的平板部分12a和12b中形成通孔15，并且可以在脊13a和13b中形成吸音材料20的一部分进入的紧固孔16。

4. 发明申请

US20100060038A1 Floor Spacer For Vehicle 有权
标题翻译：车辆地板垫片
公开(公告)号：US20100060038A1
公开(公告)日：2010-03-11
申请号：US12226665
申请日：2007-04-24
申请人： Shinji Takakura , Ayumi Hiraishi , Isao Suzuki
发明人： Shinji Takakura , Ayumi Hiraishi , Isao Suzuki
IPC分类号： B60N3/04
CPC分类号： B60N3/048 , B60R13/083
摘要： A floor spacer for a vehicle constituted of an expanded resin molded article which can simultaneously satisfy sound absorbing performance while satisfying desired compression strength and reduction in weight is provided. A floor spacer A for a vehicle is constituted of a floor spacer main body 10 constituted of an expanded resin molded article having flat plate portions 12a and 12b to be on an inner side of a compartment, and a plurality of ridges 13a and 13b vertically provided at back surfaces of the flat plate portions 12a and 12b on a floor frame side, and a layer constituted of a sound absorbing material 20 formed to fill spaces 14a and 14b formed between the aforesaid ridges 13a and 13b. Through-holes 15 may be formed in the flat plate portions 12a and 12b of the floor spacer main body 10, and fastening holes 16 which a part of the sound absorbing material 20 enters may be formed in the ridges 13a and 13b.
摘要翻译：提供一种用于车辆的地板间隔件，其由能够同时满足吸音性能同时满足期望的压缩强度和减轻重量的发泡树脂模制品构成。用于车辆的地板间隔件A由具有平板部分12a和12b的扩展树脂模塑制品构成的地板间隔件主体10构成，该平板部分12a和12b位于隔室的内侧，以及垂直设置的多个脊13a和13b 在地板框架侧的平板部分12a和12b的后表面，以及形成为填充形成在上述脊13a和13b之间的空间14a和14b的吸声材料20的层。可以在地板间隔件主体10的平板部分12a和12b中形成通孔15，并且可以在脊13a和13b中形成吸音材料20的一部分进入的紧固孔16。

5. 发明授权

US07636605B2 Magnetic disk device and head-position control method 有权
标题翻译：磁盘装置和磁头位置控制方法
公开(公告)号：US07636605B2
公开(公告)日：2009-12-22
申请号：US11687706
申请日：2007-03-19
申请人： Shinji Takakura
发明人： Shinji Takakura
IPC分类号： G05B13/02 , G11B5/596
CPC分类号： G05B13/041
摘要： A feedback controller performs a feedback control based on an error between a target position and an actual position of a head. A model controller obtains a control command, a model position to be output as a command for the target position to the feedback controller, and a model velocity for the head to follow a target velocity, by using a preset control equation model, and obtains the control command and the model position with the target position as an input, based on a differential value of the target velocity corresponding to a remaining distance from the model position to the target position.
摘要翻译：反馈控制器基于目标位置与头部的实际位置之间的误差执行反馈控制。模型控制器通过使用预设的控制方程模型获得控制命令，要作为目标位置的命令输出到反馈控制器的模型位置以及头部跟随目标速度的模型速度，并获得基于与从模型位置到目标位置的剩余距离对应的目标速度的差分值，将目标位置作为输入的控制命令和模型位置。

6. 发明申请

US20090109567A1 SEEK CONTROL APPARATUS AND METHOD FOR GENERATING CONTROL DATA FOR SEEK CONTROL 有权
标题翻译： SEEK控制装置和用于产生用于SEEK控制的控制数据的方法
公开(公告)号：US20090109567A1
公开(公告)日：2009-04-30
申请号：US12257076
申请日：2008-10-23
申请人： Yoshiyuki Ishihara , Shinji Takakura
发明人： Yoshiyuki Ishihara , Shinji Takakura
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： There is provided a method for generating acceleration data used in feed-forward control of head seeking, wherein, a seek distance and one of a seek period and the count of samples are received; a weighting factor for the change rate of acceleration between adjacent sample times is determined respectively; and an optimum acceleration at each sample time is obtained by performing an optimization calculation that minimizes an objective function under a constraint condition based on variables representing accelerations at each sample time, either the seek period or the count of samples, and the seek distance.
摘要翻译：提供了一种用于生成用于头部寻找的前馈控制中使用的加速度数据的方法，其中，寻道距离和寻道周期中的一个以及样本计数被接收; 分别确定相邻采样时间之间的加速度变化率的权重因子; 并且通过执行最优化计算来获得每个采样时间的最佳加速度，所述优化计算使得在约束条件下使目标函数最小化，所述约束条件基于在每个采样时间，即寻找周期或采样计数以及寻找距离的表示加速度的变量。

7. 发明申请

US20090073600A1 POSITIONING CONTROL SYSTEM AND POSITIONING CONTROL METHOD 有权
标题翻译：定位控制系统和定位控制方法
公开(公告)号：US20090073600A1
公开(公告)日：2009-03-19
申请号：US12206105
申请日：2008-09-08
申请人： Yoshiyuki Ishihara , Shinji Takakura
发明人： Yoshiyuki Ishihara , Shinji Takakura
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： There is provided with a positioning control system including: a head moving unit; a position detecting unit detecting a head position at predetermined time intervals; an error detecting unit detecting a position error of the head for a target position; a disturbance detecting unit detecting a non-periodic disturbance; a modifying unit modifying a first position error signal corresponding to a first head position detected in a first rotation period based on a second position error signal corresponding to a second head position detected one period length before; and a feedback controller, wherein the modifying unit modifies the first signal after reducing an amplitude of the second position error signal when a detected timing of the second head position is included in a predetermined time range with respect to a detected timing of the non-periodic disturbance detected in a second rotation period which is one period before the first rotation period.
摘要翻译：提供了一种定位控制系统，包括：头移动单元; 位置检测单元，以预定的时间间隔检测头部位置; 检测针对目标位置的头部的位置误差的误差检测单元; 检测非周期性扰动的扰动检测单元; 修改单元，基于与检测到的一个周期长度之前的第二头部位置相对应的第二位置误差信号，修改与在第一旋转周期中检测到的第一头位置对应的第一位置误差信号; 以及反馈控制器，其中当相对于非周期性的检测到的定时在预定时间范围内包括检测到的第二头位置的定时时，修改单元在减小第二位置误差信号的幅度之后修改第一信号在第一旋转周期之前的一个周期的第二旋转周期中检测到干扰。

8. 发明申请

US20090040647A1 MAGNETIC DISK APPARATUS AND MAGNETIC HEAD CONTROL METHOD 有权
标题翻译：磁盘设备和磁头控制方法
公开(公告)号：US20090040647A1
公开(公告)日：2009-02-12
申请号：US12052273
申请日：2008-03-20
申请人： Shinji Takakura
发明人： Shinji Takakura
IPC分类号： G11B15/18
CPC分类号： G11B5/5526
摘要： A magnetic disk apparatus includes: a driving unit; and control part configured to control the driving unit. The control part includes: a position error feedback control system and a two-degree-of-freedom control system. The position error feedback control system has an integrator and a phase-lead compensator and is operative to determine a position command based on a target position and a sensed position of the magnetic head, thereby performs feedback control on the driving unit. The two-degree-of-freedom control system receives as input a target moving distance of the magnetic head and outputs a current command to the driving unit by using a mathematical model of the driving unit. The control part updates the mathematical model, and has a first update mode in which the mathematical model is updated using the output of the phase-lead compensator while the output of the integrator is provided to the driving unit.
摘要翻译：磁盘装置包括：驱动单元; 以及被配置为控制所述驱动单元的控制部。控制部分包括：位置误差反馈控制系统和二自由度控制系统。位置误差反馈控制系统具有积分器和相位超前补偿器，并且可操作以基于目标位置和感测到的磁头位置确定位置指令，从而对驱动单元进行反馈控制。二自由度控制系统接收磁头的目标移动距离作为输入，并通过使用驱动单元的数学模型向驱动单元输出电流指令。控制部分更新数学模型，并且具有第一更新模式，其中使用相位超前补偿器的输出更新数学模型，同时将积分器的输出提供给驱动单元。

9. 发明申请

US20080291568A1 MAGNETIC DISK APPARATUS AND METHOD FOR CONTROLLING MAGNETIC HEAD 审中-公开
标题翻译：磁盘设备及控制磁头的方法
公开(公告)号：US20080291568A1
公开(公告)日：2008-11-27
申请号：US12025305
申请日：2008-02-04
申请人： Shinji Takakura , Kohei Maruchi , Mitsunobu Yoshida
发明人： Shinji Takakura , Kohei Maruchi , Mitsunobu Yoshida
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： A magnetic disk apparatus includes: a driving unit; a position error feedback control system; and a velocity control system. The driving unit is configured to move a magnetic head operative for magnetic recording/reproduction of information on a magnetic disk. The position error feedback control system is configured to perform feedback control of the driving unit based on difference between target track position and detected position of the magnetic head. The velocity control system is configured to vary a target velocity curve based on position of the magnetic head before motion, the target track position of the magnetic head, and position of a data sector to be subjected to recording/reproduction, for using a control mathematical model of the driving unit to control the driving unit so that velocity of the driving unit follows the target velocity curve.
摘要翻译：磁盘装置包括：驱动单元; 位置误差反馈控制系统; 和速度控制系统。驱动单元被配置为移动用于磁记录/再现磁盘上的信息的磁头。位置误差反馈控制系统被配置为基于目标轨迹位置和磁头的检测位置之间的差异来执行驱动单元的反馈控制。速度控制系统被配置为基于运动前的磁头的位置，磁头的目标轨迹位置和要进行记录/再现的数据扇区的位置来改变目标速度曲线，以使用控制数学驱动单元的模型来控制驱动单元，使得驱动单元的速度跟随目标速度曲线。

10. 发明授权

US07440222B2 Magnetic recording apparatus and positioning correction method 失效
标题翻译：磁记录装置及定位校正方法
公开(公告)号：US07440222B2
公开(公告)日：2008-10-21
申请号：US11368734
申请日：2006-03-06
申请人： Hiroaki Nakamura , Shinji Takakura
发明人： Hiroaki Nakamura , Shinji Takakura
IPC分类号： G11B5/596
CPC分类号： G11B20/10 , G11B5/59627
摘要： A magnetic recording apparatus includes a composite magnetic head which includes a recording head and a reproducing head; a magnetic storage medium; a discrete area; and a correction information recording area. Positioning correction information is able to be written in the correction information recording area at each track center. The apparatus also includes a center shift amount detection area. Center shift amount detection information is previously recorded in the center shift amount detection area. The center shift amount detection information is for measuring a center shift amount which indicates a relative distance between a tracking center and an actual track center of the discrete area when either the recording head or the reproducing head is positioned at a track center.
摘要翻译：磁记录装置包括复合磁头，其包括记录头和再现头; 磁存储介质; 离散区域和校正信息记录区域。定位校正信息能够写入每个轨道中心的校正信息记录区域。该装置还包括中心偏移量检测区域。中心偏移量检测信息预先记录在中心偏移量检测区域中。中心偏移量检测信息用于测量当记录头或再现头位于轨道中心时的离散区域的跟踪中心和实际轨道中心之间的相对距离的中心偏移量。

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