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1. 发明授权

US07514843B2 Piezoelectric actuator and device 有权
标题翻译：压电致动器和装置
公开(公告)号：US07514843B2
公开(公告)日：2009-04-07
申请号：US11175165
申请日：2005-07-07
申请人： Reiko Nagahama , Yutaka Yamazaki
发明人： Reiko Nagahama , Yutaka Yamazaki
IPC分类号： H01L41/04 , H02N2/00
CPC分类号： H01L41/0906 , G04C3/12
摘要： A generally diamond-shaped detection electrode is formed in the approximate center of the piezoelectric element. The strain resulting from the bending secondary vibration mode in the vicinity of the detection electrode is minimized because the detection electrode is formed in such a manner as to include a vibrational node of the longitudinal primary vibrational mode and a vibrational node of the bending secondary vibrational mode. As a result, when the phase difference between the drive signal and the detection signal is detected, the effect of vibration in the bending secondary vibration mode on the detected phase difference can be suppressed and a single drive frequency can be determined with respect to a prescribed phase difference. Thus, the drive performance of the vibrating body with respect to a driven body (i.e., a body driven by the vibrating body) can be reliably improved because, by controlling the drive frequency such that the phase difference equals a prescribed value, the vibrating body can be made to vibrate at a desired frequency and vibrate in such a manner that the desired vibration components are achieved in each vibration mode.
摘要翻译：大致菱形检测电极形成在压电元件的大致中心。由于检测电极以包括纵向主振动模式的振动节点和弯曲次级振动模式的振动节点的方式形成，所以由检测电极附近的弯曲二次振动模式产生的应变最小化。结果，当检测到驱动信号和检测信号之间的相位差时，可以抑制弯曲二次振动模式下的振动对检测到的相位差的影响，并且可以相对于规定的规定确定单个驱动频率相位差。因此，通过控制驱动频率使相位差等于规定值，能够可靠地提高振动体相对于被驱动体（即，被振动体驱动的身体）的驱动性能，振动体可以以期望的频率振动并以使得在每个振动模式下实现期望的振动分量的方式振动。

2. 发明申请

US20070188048A1 Piezoelectric actuator and device 有权
标题翻译：压电致动器和装置
公开(公告)号：US20070188048A1
公开(公告)日：2007-08-16
申请号：US11175165
申请日：2005-07-07
申请人： Reiko Nagahama , Yutaka Yamazaki
发明人： Reiko Nagahama , Yutaka Yamazaki
IPC分类号： H01L41/00
CPC分类号： H01L41/0906 , G04C3/12
摘要： A generally diamond-shaped detection electrode is formed in the approximate center of the piezoelectric element. The strain resulting from the bending secondary vibration mode in the vicinity of the detection electrode is minimized because the detection electrode is formed in such a manner as to include a vibrational node of the longitudinal primary vibrational mode and a vibrational node of the bending secondary vibrational mode. As a result when the phase difference between the drive signal and the detection signal is detected, the effect of vibration in the bending secondary vibration mode on the detected phase difference can be suppressed and a single drive frequency can be determined with respect to a prescribed phase difference. Thus, the drive performance of the vibrating body with respect to a driven body (i.e., a body driven by the vibrating body) can be reliably improved because, by controlling the drive frequency such that the phase difference equals a prescribed value, the vibrating body can be made to vibrate at a desired frequency and vibrate in such a manner that the desired vibration components are achieved in each vibration mode.
摘要翻译：大致菱形检测电极形成在压电元件的大致中心。由于检测电极以包括纵向主振动模式的振动节点和弯曲次级振动模式的振动节点的方式形成，所以由检测电极附近的弯曲二次振动模式产生的应变最小化。结果，当检测到驱动信号和检测信号之间的相位差时，可以抑制弯曲二次振动模式下的振动对检测的相位差的影响，并且可以相对于规定的相位来确定单个驱动频率区别。因此，通过控制驱动频率使相位差等于规定值，能够可靠地提高振动体相对于被驱动体（即，被振动体驱动的身体）的驱动性能，振动体可以以期望的频率振动并以使得在每个振动模式下实现期望的振动分量的方式振动。

3. 发明授权

US07900722B2 Electrically driven industrial vehicle 有权
标题翻译：电动工业车辆
公开(公告)号：US07900722B2
公开(公告)日：2011-03-08
申请号：US12294471
申请日：2007-03-09
申请人： Yoshihide Shimada , Masao Yoshioka , Yutaka Yamazaki
发明人： Yoshihide Shimada , Masao Yoshioka , Yutaka Yamazaki
IPC分类号： B62D51/04
CPC分类号： E02F3/3414 , E02F9/0858 , E02F9/207 , E02F9/2079
摘要： A shovel loader (1) has a vehicle body frame (9), a travel device (5), a loader device (20), and a drive power generation section for generating drive power for making the travel device (5) travel. The vehicle body frame (9) has a pair of side frames (9a, 9a) arranged on both the left and right sides of the shovel loader (1). The loader device (20) is made up of a pair of lift arms (21,21) vertically swingably attached to the pair of side frames (9a, 9a) and of a bucket (29) vertically swingably attached to the forward end of the pair of lift arms (21,21). The drive power generation section has a pair of electric motors (71,71) for individually transmitting drive power to the pair of travel devices (5,5) and capable of being controlled independent of each other so that a vehicle (10) can be made to travel in a manner the left and right are independent of each other, and also has a battery (50) for supplying electric power to the electric motors (71,71).
摘要翻译：铲装置（1）具有车身框架（9），行走装置（5），装载装置（20）和用于产生用于使行进装置（5）行进的驱动力的驱动力发电部。车身框架（9）具有布置在铲式装载机（1）的左右两侧的一对侧框架（9a，9a）。装载装置（20）由一对提升臂（21,21）构成，该提升臂垂直地可摆动地安装在一对侧框架（9a，9a）上，一对铲斗（29）垂直地可摆动地附接到一对提升臂（21,21）。驱动发电部具有一对电动机（71,71），用于将驱动力单独地传递给一对行驶装置（5,5），并能够彼此独立地进行控制，使得车辆（10）能够使得左右移动彼此独立，并且还具有用于向电动机（71,71）供电的电池（50）。

4. 发明授权

US07829446B2 Method for dividing wafer, method for manufacturing silicon devices, and method for manufacturing liquid ejecting heads 有权
标题翻译：分割晶片的方法，硅器件的制造方法以及液体喷射头的制造方法
公开(公告)号：US07829446B2
公开(公告)日：2010-11-09
申请号：US11937318
申请日：2007-11-08
申请人： Wataru Takahashi , Yoshinao Miyata , Kazushige Umetsu , Yutaka Yamazaki
发明人： Wataru Takahashi , Yoshinao Miyata , Kazushige Umetsu , Yutaka Yamazaki
IPC分类号： H01L21/425
CPC分类号： B41J2/161 , B23K26/40 , B23K26/53 , B23K2103/50 , B28D5/0011 , B41J2/14233 , B41J2/1623 , B41J2/1628 , B41J2/1629 , B41J2/1634 , B41J2/1635 , B41J2002/14241 , B41J2002/14419 , B41J2002/14491 , H01L21/78
摘要： A method for dividing a wafer into a plurality of chips is provided. The method includes providing recesses in a surface of the wafer at positions along boundaries between regions to become the individual chips, providing fragile portions having a predetermined width inside the wafer at positions along the boundaries by irradiation of the other surface of the wafer with a laser beam whose condensing point is placed inside the wafer, the fragile portions including connected portions at least at one of the surfaces of the wafer, and dividing the wafer at the fragile portions into the individual chips by applying an external force to the wafer.
摘要翻译：提供了将晶片分割成多个芯片的方法。该方法包括在晶片的表面上提供在区域之间的边界处的位置处的凹槽，以成为单独的芯片，通过用激光器照射晶片的另一个表面在边缘的位置处提供在晶片内部具有预定宽度的脆弱部分其聚光点放置在晶片内部，脆弱部分包括晶片的至少一个表面上的连接部分，并且通过向晶片施加外力将脆弱部分中的晶片分成单独的芯片。

5. 发明申请

US20090314557A1 ELECTRICALLY DRIVEN INDUSTRIAL VEHICLE 有权
标题翻译：电动驱动工业车辆
公开(公告)号：US20090314557A1
公开(公告)日：2009-12-24
申请号：US12162533
申请日：2007-02-02
申请人： Akio Takeuchi , Yoshihide Shimada , Masao Yoshioka , Yutaka Yamazaki , Akira Yamamoto
发明人： Akio Takeuchi , Yoshihide Shimada , Masao Yoshioka , Yutaka Yamazaki , Akira Yamamoto
IPC分类号： B60K1/00 , B60R16/04
CPC分类号： B60K1/04 , B60K2001/0455 , B60K2001/0477 , B60L11/005 , B60Y2200/25 , B60Y2200/412 , H01M10/052 , Y02E60/122 , Y02T10/7011 , Y02T10/7022
摘要： An electrically driven industrial vehicle comprising a revolving body (11) attached to a undercarriage (7) so as to be able to turn horizontally; a power shovel device (20) for receiving a hydraulic drive force and operating, the power shovel device being mounted on the revolving body (11); and a hydraulic drive force generating unit provided to the revolving body (11), for generating hydraulic drive force for operating the power shovel device (20). The hydraulic drive force generating unit has a hydraulic fluid tank (73) for storing hydraulic fluid; a hydraulic pump (14) for feeding the hydraulic fluid in the hydraulic fluid tank to the power shovel device (20); an electric motor (13) for driving the hydraulic pump; and a lithium ion battery (50) for feeding electrical drive power to the electric motor.
摘要翻译：一种电动工业车辆，包括附接到起落架（7）以能够水平转动的旋转体（11）; 用于接收液压驱动力并操作的铲铲装置（20），所述铲土装置安装在所述旋转体（11）上; 以及设置在所述旋转体（11）上的用于产生用于操作所述铲土装置（20）的液压驱动力的液压驱动力产生单元。液压驱动力产生单元具有用于储存液压流体的液压油箱（73）液压泵（14），用于将液压油箱中的液压油供给到铲斗装置（20）; 用于驱动液压泵的电动机（13）; 以及用于向电动机供电的锂离子电池（50）。

6. 发明授权

US07298066B2 Drive apparatus for piezoelectric actuator, drive method for piezoelectric actuator, electronic device, control program for drive apparatus for piezoelectric actuator, and recording medium 有权
标题翻译：用于压电致动器的驱动装置，压电致动器的驱动方法，电子装置，用于压电致动器的驱动装置的控制程序和记录介质
公开(公告)号：US07298066B2
公开(公告)日：2007-11-20
申请号：US11269682
申请日：2005-11-09
申请人： Takashi Kawaguchi , Akihiro Sawada , Yutaka Yamazaki , Makoto Okeya
发明人： Takashi Kawaguchi , Akihiro Sawada , Yutaka Yamazaki , Makoto Okeya
IPC分类号： H01L41/08
CPC分类号： H02N2/103 , H01L41/0906 , H02N2/142
摘要： A drive apparatus for a piezoelectric actuator prevents locking drive frequency in a state of resonance due to harmonics. There is no need to provide external components to filter, and circuitry can easily be reduced in size. The drive apparatus has a phase difference-DC conversion circuit to detect vibrating state of the vibrating body, a comparison circuit, a harmonics detection circuit to detect that the vibrating body is resonating due to harmonics and outputting a harmonics detection signal, an integration circuit to control the frequency of the drive signal supplied to the piezoelectric element of the vibrating body, a variable frequency oscillation circuit, and a drive circuit. The integration circuit, the variable frequency oscillation circuit, and the drive circuit control the frequency of the drive signal on the basis of the output of the comparison circuit when a harmonics detection signal is not outputted and continue to vary the frequency of the drive signal without controlling the frequency of the drive signal on the basis of the output of the comparison circuit when a harmonics detection signal is being outputted.
摘要翻译：用于压电致动器的驱动装置防止由于谐波而使驱动频率处于共振状态。不需要提供外部组件进行过滤，电路可以轻松减小尺寸。驱动装置具有检测振动体的振动状态的相位差 - 直流转换电路，比较电路，谐波检测电路，用于检测振动体由于谐波而谐振并输出谐波检测信号，积分电路控制提供给振动体的压电元件的驱动信号的频率，可变频率振荡电路和驱动电路。当不输出谐波检测信号时，积分电路，可变频率振荡电路和驱动电路基于比较电路的输出来控制驱动信号的频率，并且不继续改变驱动信号的频率而没有当输出谐波检测信号时，基于比较电路的输出来控制驱动信号的频率。

7. 发明申请

US20060113863A1 Drive apparatus for piezoelectric actuator, drive method for piezoelectric actuator, electronic device, control program for drive apparatus for piezoelectric actuator, and recording medium 有权
标题翻译：用于压电致动器的驱动装置，压电致动器的驱动方法，电子装置，用于压电致动器的驱动装置的控制程序和记录介质
公开(公告)号：US20060113863A1
公开(公告)日：2006-06-01
申请号：US11269682
申请日：2005-11-09
申请人： Takashi Kawaguchi , Akihiro Sawada , Yutaka Yamazaki , Makoto Okeya
发明人： Takashi Kawaguchi , Akihiro Sawada , Yutaka Yamazaki , Makoto Okeya
IPC分类号： H01L41/08
CPC分类号： H02N2/103 , H01L41/0906 , H02N2/142
摘要： A drive apparatus for a piezoelectric actuator prevents locking drive frequency in a state of resonance due to harmonics. There is no need to provide external components to filter, and circuitry can easily be reduced in size. The drive apparatus has a phase difference-DC conversion circuit to detect vibrating state of the vibrating body, a comparison circuit, a harmonics detection circuit to detect that the vibrating body is resonating due to harmonics and outputting a harmonics detection signal, an integration circuit to control the frequency of the drive signal supplied to the piezoelectric element of the vibrating body, a variable frequency oscillation circuit, and a drive circuit. The integration circuit, the variable frequency oscillation circuit, and the drive circuit control the frequency of the drive signal on the basis of the output of the comparison circuit when a harmonics detection signal is not outputted and continue to vary the frequency of the drive signal without controlling the frequency of the drive signal on the basis of the output of the comparison circuit when a harmonics detection signal is being outputted.
摘要翻译：用于压电致动器的驱动装置防止由于谐波而使驱动频率处于共振状态。不需要提供外部组件进行过滤，电路可以轻松减小尺寸。驱动装置具有检测振动体的振动状态的相位差 - 直流转换电路，比较电路，谐波检测电路，用于检测振动体由于谐波而谐振并输出谐波检测信号，积分电路控制提供给振动体的压电元件的驱动信号的频率，可变频率振荡电路和驱动电路。当不输出谐波检测信号时，积分电路，可变频率振荡电路和驱动电路基于比较电路的输出控制驱动信号的频率，并且继续改变驱动信号的频率而没有当输出谐波检测信号时，基于比较电路的输出来控制驱动信号的频率。

8. 发明授权

US08800980B2 Spring structure 有权
标题翻译：弹簧结构
公开(公告)号：US08800980B2
公开(公告)日：2014-08-12
申请号：US13131222
申请日：2009-11-25
申请人： Seiji Sawai , Yutaka Yamazaki
发明人： Seiji Sawai , Yutaka Yamazaki
IPC分类号： F16F3/04 , F16F9/32 , F16F1/12 , B60G11/14 , B60G15/06
CPC分类号： F16F3/04 , B60G11/14 , B60G15/065 , B60G2202/12 , B60G2204/124 , B60G2206/42 , F16F1/12
摘要： A spring structure includes a clockwise spring and a counterclockwise spring that are coaxially arranged under a state in which a spring seat is interposed between a lower end portion of the clockwise spring and an upper end portion of the counterclockwise spring. An upper end portion of the clockwise spring is supported on an upper spring seat portion, and a lower end portion of the counterclockwise spring is supported on a lower spring seat portion.
摘要翻译：弹簧结构包括顺时针弹簧和逆时针弹簧，其同时布置在弹簧座置于顺时针弹簧的下端部与逆时针方向弹簧的上端部之间的状态下。顺时针弹簧的上端部支撑在上弹簧座部上，逆时针方向弹簧的下端部支承在下弹簧座部上。

9. 发明申请

US20070278976A1 Drive apparatus of piezoelectric actuator, electronic apparatus, drive method of electronic apparatus, drive control program of electronic apparatus, and medium 有权
标题翻译：压电致动器的驱动装置，电子设备，电子设备的驱动方法，电子设备的驱动控制程序和介质
公开(公告)号：US20070278976A1
公开(公告)日：2007-12-06
申请号：US11076065
申请日：2005-03-10
申请人： Takashi Kawaguchi , Akihiro Sawada , Yutaka Yamazaki , Makoto Okeya
发明人： Takashi Kawaguchi , Akihiro Sawada , Yutaka Yamazaki , Makoto Okeya
IPC分类号： H02N2/00
CPC分类号： H02N2/062 , G04C3/12 , G04C17/005 , H01L41/0906
摘要： An electronic device comprising a power source, a piezoelectric actuator A, and a drive control apparatus 100 for controlling the driving of the piezoelectric actuator, wherein the drive control apparatus 100 is provided with a drive circuit 111 for supplying a drive signal SDR to the piezoelectric element of the vibrating body 12, a phase difference detection means 120 for detecting the phase difference indicating the vibration state of the vibrating body 12, a comparison voltage setting circuit 133 for correcting the target phase difference to be the target for the vibration state, and a drive frequency setting means 140 for comparing the phase difference with the target phase difference; and the piezoelectric actuator A can be driven with high efficiency independent of the drive voltage by modifying the drive frequency of the drive signal SDR so that the phase difference approaches the target phase difference based on the results of the above comparison.
摘要翻译：一种电子设备，包括电源，压电致动器A和用于控制压电致动器的驱动的驱动控制装置100，其中驱动控制装置100设置有驱动电路111，用于将驱动信号SDR提供给压电振动体12的元件，用于检测表示振动体12的振动状态的相位差的相位差检测单元120，将目标相位差校正为振动状态的目标的比较电压设定电路133以及用于将相位差与目标相位差进行比较的驱动频率设定装置140; 并且通过修改驱动信号SDR的驱动频率，可以以与驱动电压无关的方式驱动压电致动器A，从而基于上述比较的结果，相位差接近目标相位差。

10. 发明申请

US20050231069A1 Piezoelectric actuator drive apparatus, electronic device, driving method thereof, drive control program thereof, and storage medium in which program is stored 失效
标题翻译：压电致动器驱动装置，电子装置，其驱动方法，驱动控制程序，存储有程序的存储介质
公开(公告)号：US20050231069A1
公开(公告)日：2005-10-20
申请号：US11081673
申请日：2005-03-17
申请人： Yutaka Yamazaki , Takashi Kawaguchi
发明人： Yutaka Yamazaki , Takashi Kawaguchi
IPC分类号： B06B1/06 , G04C3/00 , G04C3/12 , H01L41/04 , H01L41/09 , H02N2/00
CPC分类号： G04C3/12 , H02N2/004 , H02N2/103 , H02N2/142
摘要： The control circuit 131 causes drive frequency modification to be re-executed after returning the drive frequency to the prescribed drive frequency when the reduction rate of the power source voltage is higher than the standard reduction rate; specifically, when driving is being performed at a drive frequency whereby drive efficiency is poor and power consumption is high, or when the piezoelectric actuator A cannot start up for whatever reason. Therefore, since a startup failure or the like can be immediately determined based on the reduction rate of the power source voltage without a long time elapsing before the startup failure is detected, the time required for this determination can be shortened, the processing that is performed from the detection of an abnormality until optimization of the drive signal can be quickly executed, electrical power consumption can be reduced, and low-power operation can be ensured.
摘要翻译：当电源电压的降低率高于标准降低率时，控制电路131使驱动频率修正在将驱动频率返回到规定的驱动频率之后重新执行; 具体地，当以驱动效率差，功耗高的驱动频率进行驱动时，或者当压电致动器A由于任何原因而不能启动时。因此，由于可以在检测到启动故障之前不经过长时间的电源电压的降低率立即确定启动故障等，所以可以缩短该确定所需的时间，执行的处理从异常的检测到能够快速执行驱动信号的优化，能够降低电力消耗，能够确保低功率运转。

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