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1. 发明申请

US20110229356A1 FLUID CONVEYANCE DEVICE 有权
标题翻译：流体输送装置
公开(公告)号：US20110229356A1
公开(公告)日：2011-09-22
申请号：US13105927
申请日：2011-05-12
申请人： Gaku KAMITANI , Atsuhiko HIRATA
发明人： Gaku KAMITANI , Atsuhiko HIRATA
IPC分类号： F04B17/00
CPC分类号： F04B43/046 , H01L41/0471 , H01L41/0833 , H01L41/0973
摘要： A fluid conveyance device includes a substrate, and a disk-shaped piezoelectric element arranged in a bendable manner on the substrate. A plurality of substantially circular concentric segment electrodes are provided on the piezoelectric element, and are provided with voltages with phases that are shifted. A wavy ring deformation is thus produced on the piezoelectric element. A pocket produced between the piezoelectric element and the substrate is moved in a radial direction so as to convey a fluid from an outer substantially circular portion to a central portion and to discharge the fluid from the central portion.
摘要翻译：流体输送装置包括基板和以可弯曲的方式布置在基板上的盘状压电元件。多个基本圆形的同心段电极设置在压电元件上，并具有相位偏移的电压。因此在压电元件上产生波浪形环变形。在压电元件和基板之间产生的口袋在径向方向上移动，以将流体从外部基本上圆形的部分输送到中心部分并且从中心部分排出流体。

2. 发明申请

US20100196177A1 VIBRATING DEVICE AND PIEZOELECTRIC PUMP 有权
标题翻译：振动装置和压电泵
公开(公告)号：US20100196177A1
公开(公告)日：2010-08-05
申请号：US12761467
申请日：2010-04-16
申请人： Atsuhiko HIRATA , Gaku KAMITANI
发明人： Atsuhiko HIRATA , Gaku KAMITANI
IPC分类号： F04B43/04 , H01L41/053
CPC分类号： F04B43/04 , F04B43/046 , F04B45/027 , H01L41/0973 , H01M8/04201
摘要： A piezoelectric pump includes a piezoelectric element, an intermediate plate, and a vibrating plate. The piezoelectric element has a substantially flat plate shape. The intermediate plate is bonded to a principal surface of the piezoelectric element and applies a residual stress in a compressive direction to the piezoelectric element. The vibrating plate is bonded to the intermediate plate such that the vibrating plate faces a principal surface of the piezoelectric element and receives a residual stress in a compressive direction from the intermediate plate. In addition, the vibrating plate defines a portion of a wall surface of a pump chamber having an open hole. A fluid passage is provided in the piezoelectric pump. The fluid passage communicates with the outside of the chamber at one end thereof, and communicates with the pump chamber through the open hole at the other end.
摘要翻译：压电泵包括压电元件，中间板和振动板。压电元件具有大致平板形状。中间板被结合到压电元件的主表面，并向压电元件施加压缩方向的残余应力。振动板与中间板接合，使得振动板面向压电元件的主表面并从中间板接收压缩方向的残余应力。此外，振动板限定具有开孔的泵室的壁面的一部分。在压电泵中设置有流体通道。流体通道在其一端与腔室的外部连通，并且通过另一端的开孔与泵室连通。

3. 发明申请

US20090232684A1 PIEZOELECTRIC MICRO-BLOWER 有权
标题翻译：压电微型鼓风机
公开(公告)号：US20090232684A1
公开(公告)日：2009-09-17
申请号：US12476332
申请日：2009-06-02
申请人： Atsuhiko HIRATA , Gaku KAMITANI
发明人： Atsuhiko HIRATA , Gaku KAMITANI
IPC分类号： F04B43/04
CPC分类号： F04B43/046 , F04B39/1093 , F04B45/047
摘要： A blower body is provided with a first wall and a second wall, and openings are provided in the walls at positions facing the approximate center of a diaphragm. An inflow passage that allows the openings to communicate with the outside is arranged between the two walls. When the diaphragm is vibrated in response to a voltage applied to a piezoelectric element, the first wall vibrates near the opening and sucks in air from the inflow passage so that the air can be ejected from the opening. A plurality of branch passages which provide sound absorption are connected to an intermediate section of the inflow passage so as to prevent noise generated near the opening from leaking from an inlet.
摘要翻译：鼓风机主体设置有第一壁和第二壁，并且在面向隔膜的大致中心的位置处在壁中设置开口。允许开口与外部连通的流入通道布置在两个壁之间。当隔膜响应于施加到压电元件的电压而振动时，第一壁在开口附近振动并从入流通道吸入空气，从而可以从开口喷出空气。提供吸声的多个分支通道连接到流入通道的中间部分，以防止开口附近产生的噪声从入口泄漏。

4. 发明申请

US20120293041A1 PIEZOELECTRIC ACTUATOR DRIVER CIRCUIT 有权
标题翻译：压电致动器驱动电路
公开(公告)号：US20120293041A1
公开(公告)日：2012-11-22
申请号：US13563774
申请日：2012-08-01
申请人： Gaku KAMITANI , Toshinari TABATA
发明人： Gaku KAMITANI , Toshinari TABATA
IPC分类号： H01L41/09
CPC分类号： H02N2/008 , F04D27/00 , F04D33/00
摘要： In a piezoelectric actuator driver circuit, a resistor provided to detect current is inserted in a current path for a piezoelectric actuator. A signal of a decreased voltage of the resistor is subjected to positive feedback to an amplifier circuit via a band-pass filter. An output signal of the amplifier circuit is subjected to negative feedback to the amplifier circuit via a band-elimination filter. The band-pass filter allows a signal of a fundamental resonant frequency of a piezoelectric device, which includes the piezoelectric actuator, to pass therethrough, and the band-elimination filter blocks the signal of the fundamental resonant frequency. Thus, a loop gain at a higher-order resonant frequency with respect to the fundamental resonant frequency becomes very low and a higher-order resonant mode can be effectively suppressed.
摘要翻译：在压电致动器驱动电路中，将用于检测电流的电阻插入用于压电致动器的电流通路中。电阻器的电压降低的信号经由带通滤波器对放大器电路进行正反馈。放大器电路的输出信号通过带除滤波器对放大器电路进行负反馈。带通滤波器允许包括压电致动器的压电装置的基本共振频率的信号通过，带阻滤波器阻挡基本谐振频率的信号。因此，相对于基本谐振频率的高阶谐振频率的环路增益变得非常低，并且可以有效地抑制高阶谐振模式。

5. 发明申请

US20110070109A1 PIEZOELECTRIC MICROBLOWER 有权
标题翻译：压电显微镜
公开(公告)号：US20110070109A1
公开(公告)日：2011-03-24
申请号：US12959462
申请日：2010-12-03
申请人： Shungo KANAI , Gaku KAMITANI , Yoko KANEDA
发明人： Shungo KANAI , Gaku KAMITANI , Yoko KANEDA
IPC分类号： F04B17/00
CPC分类号： F04B45/047 , F04B2201/0806 , F04B2201/12
摘要： A piezoelectric microblower includes a vibrating plate including a piezoelectric element and arranged to be driven in a bending mode by applying a voltage of a predetermined frequency to the piezoelectric element, and a blower body arranged to fix both ends or a periphery of the vibrating plate and to define a blower chamber between the blower body and the vibrating plate, an opening being provided in a portion of the blower body facing a central portion of the vibrating plate. In a portion of the blower chamber corresponding to the central portion of the vibrating plate, a partition is provided around the opening and a resonance space is defined inside of the partition. A size of the resonance space is set such that a driving frequency of the vibrating plate and a Helmholtz resonance frequency of the resonance space correspond to each other.
摘要翻译：一种压电微型鼓风机包括：振动板，其包括压电元件，并配置为通过向压电元件施加预定频率的电压而以弯曲模式驱动;以及鼓风机主体，其布置成将振动板的两端或周边固定，以及在所述鼓风机主体和所述振动板之间限定鼓风机室，所述鼓风机主体的面向所述振动板的中心部分的部分设置有开口。在对应于振动板的中心部分的鼓风机室的一部分中，在开口周围设置隔板，并且在隔板内限定共振空间。谐振空间的大小被设定为使得振动板的驱动频率和谐振空间的亥姆霍兹共振频率彼此对应。

6. 发明申请

US20070052600A1 COIL ANTENNA STRUCTURE AND PORTABLE ELECTRONIC APPARATUS 有权
标题翻译：线圈天线结构和便携式电子设备
公开(公告)号：US20070052600A1
公开(公告)日：2007-03-08
申请号：US11553029
申请日：2006-10-26
申请人： Gaku KAMITANI , Hiroshi MARUSAWA , Takehiro KONOIKE , Kazunari KAWAHATA
发明人： Gaku KAMITANI , Hiroshi MARUSAWA , Takehiro KONOIKE , Kazunari KAWAHATA
IPC分类号： H01Q1/24
CPC分类号： G06K7/10316 , G06K7/0008 , G06K7/10326 , G06K19/0723 , H01Q1/243 , H01Q7/08
摘要： A coil antenna structure includes a first magnetic component extending in the thickness direction of a tabular primary casing. A second magnetic component and a third magnetic component, which are magnetically connected to the first magnetic component, are disposed on the first principal surface side and the second principal surface side of the primary casing, respectively. The first magnetic component is provided with a coil component surrounding it. In this manner, a U-shaped magnetic path is provided at an end portion of the primary casing so as to detour around a substrate defining an internal conductor. Likewise, a U-shaped magnetic path including fourth to sixth magnetic components is provided in a secondary casing defining a clamshell type casing together with the primary casing so as to detour around a substrate defining as an internal conductor.
摘要翻译：线圈天线结构包括在平板状主壳体的厚度方向上延伸的第一磁性部件。与第一磁性部件磁性连接的第二磁性部件和第三磁性部件分别设置在主要壳体的第一主表面侧和第二主面侧。第一磁性部件设置有围绕它的线圈部件。以这种方式，在主壳体的端部处设置U形磁路，以绕着限定内部导体的衬底绕行。类似地，包括第四至第六磁性部件的U形磁路设置在与主壳体一起限定蛤壳型壳体的二次壳体中，以绕着限定为内部导体的基板绕行。

7. 发明申请

US20120134858A1 COOLING DEVICE 审中-公开
标题翻译：冷却装置
公开(公告)号：US20120134858A1
公开(公告)日：2012-05-31
申请号：US13366465
申请日：2012-02-06
申请人： Hiroaki WADA , Gaku KAMITANI
发明人： Hiroaki WADA , Gaku KAMITANI
IPC分类号： F04B17/03
CPC分类号： G06F1/20 , F04D33/00 , H01L23/467 , H01L2924/0002 , H05K7/20172 , H01L2924/00
摘要： A piezoelectric fan includes a blade that is joined to a piezoelectric oscillator that bends in response to an application of a voltage, and the blade of the piezoelectric fan is arranged to swing in a space between neighboring heat dissipating fins of a heat sink. The formation of a hole in the blade increases the amplitude of the blade and also improves the sweep effect of sweeping high-temperature air in the vicinity of the wall of the heat dissipating fin, and thus, improves the cooling capability of the piezoelectric fan.
摘要翻译：压电风扇包括与响应于施加电压而弯曲的压电振荡器接合的叶片，并且压电风扇的叶片布置成在散热片的相邻散热片之间的空间中摆动。叶片中的孔的形成增加了叶片的振幅，并且还提高了在散热片的壁附近扫掠高温空气的扫掠效果，从而提高了压电风扇的冷却能力。

8. 发明申请

US20110068657A1 PIEZOELECTRIC ACTUATOR DRIVER CIRCUIT 有权
标题翻译：压电致动器驱动电路
公开(公告)号：US20110068657A1
公开(公告)日：2011-03-24
申请号：US12883291
申请日：2010-09-16
申请人： Midori SUNAGA , Toshinari TABATA , Gaku KAMITANI
发明人： Midori SUNAGA , Toshinari TABATA , Gaku KAMITANI
IPC分类号： H01L41/09
CPC分类号： H01L41/042
摘要： In a piezoelectric-actuator driving circuit for driving a piezoelectric actuator, an amplifier circuit amplifies a signal output from a feedback circuit and supplies the amplified signal to a non-inverting amplifier circuit and an inverting amplifier circuit. The non-inverting amplifier circuit amplifies the output voltage of the amplifier circuit with a predetermined gain and applies the amplified voltage to a first terminal of the piezoelectric actuator. The inverting amplifier circuit inverts and amplifies the output voltage of the amplifier circuit with the same gain as that of the non-inverting amplifier circuit and then applies the amplified voltage to a second terminal of the piezoelectric actuator through resistors. The feedback circuit amplifies a difference between voltages at respective ends of the resistor and supplies the amplified difference to the amplifier circuit.
摘要翻译：在用于驱动压电致动器的压电致动器驱动电路中，放大器电路放大从反馈电路输出的信号，并将放大的信号提供给非反相放大器电路和反相放大器电路。非反相放大器电路以预定的增益放大放大器电路的输出电压，并将放大的电压施加到压电致动器的第一端。反相放大器电路以与非反相放大器电路相同的增益来反相放大放大器电路的输出电压，然后通过电阻将放大的电压施加到压电致动器的第二端。反馈电路放大电阻器各端的电压差，并将放大的差值提供给放大器电路。

9. 发明申请

US20110005733A1 PIEZOELECTRIC FAN AND COOLING DEVICE USING PIEZOELECTRIC FAN 审中-公开
标题翻译：压电风扇和使用压电风扇的冷却装置
公开(公告)号：US20110005733A1
公开(公告)日：2011-01-13
申请号：US12885629
申请日：2010-09-20
申请人： Hiroaki WADA , Gaku KAMITANI
发明人： Hiroaki WADA , Gaku KAMITANI
IPC分类号： G06F1/20
CPC分类号： H01L23/467 , F04D33/00 , H01L41/094 , H01L2924/0002 , H01L2924/00
摘要： A piezoelectric fan includes a piezoelectric vibrator that vibrates in a bending mode when a voltage is applied thereto and a plurality of parallel or substantially parallel blades connected to or integrated with the piezoelectric vibrator. The blades are arranged between heat-radiating fins of a heat sink such that the blades bend parallel or substantially parallel to side surfaces of the heat-radiating fins. A joint that connects the blades to each other is disposed at free ends in a longitudinal direction of the blades. When the blades are excited by the piezoelectric vibrator and warm air between the heat-radiating fins is blown, the joint prevents the blades from twisting.
摘要翻译：压电风扇包括当施加电压时以弯曲模式振动的压电振动器和连接到压电振动器或与压电振动器集成的多个平行或大致平行的叶片。叶片布置在散热片的散热片之间，使得叶片平行或基本上平行于散热翅片的侧表面弯曲。将叶片彼此连接的接头设置在叶片的纵向方向上的自由端。当叶片被压电振动器激发并且散热翅片之间的暖空气被吹动时，接头防止叶片扭转。

10. 发明申请

US20120244454A1 VALVE, FLUIDIC APPARATUS, AND FLUID-SUPPLYING APPARATUS 有权
标题翻译：阀，流体装置和流体供应装置
公开(公告)号：US20120244454A1
公开(公告)日：2012-09-27
申请号：US13241806
申请日：2011-09-23
申请人： Takenobu MAEDA , Gaku KAMITANI , Hidekazu SASAI
发明人： Takenobu MAEDA , Gaku KAMITANI , Hidekazu SASAI
IPC分类号： F16K31/126 , H01M8/04 , F16K17/28
CPC分类号： F16K15/185 , F16K7/17 , F16K15/141 , F16K15/144 , G05D16/0633 , H01M8/04082 , Y10T137/7792
摘要： A valve includes a valve body, a diaphragm dividing the inside of the valve body into first and second valve chambers and being displaced under a pressure of fluid, first and second openings in communication with the first valve chamber, and a third opening in communication with the second valve chamber. When a pump is not driven, the force applied to a side of the diaphragm facing the second valve chamber is greater than the force applied to a side of the diaphragm facing the first valve chamber, and the second opening is sealed by the diaphragm. When the pump is driven and the force applied to the side of the diaphragm facing the first valve chamber becomes greater than the force applied to the side of the diaphragm facing the second valve chamber, the diaphragm allows the first and second openings and to communicate with each other.
摘要翻译：阀包括阀体，将阀体内部分隔成第一和第二阀室并在流体压力下移动的隔膜，与第一阀室连通的第一和第二开口以及与第一阀室连通的第三开口第二阀室。当泵不被驱动时，施加到面向第二阀室的隔膜侧的力大于施加到面向第一阀室的隔膜侧的力，第二开口被隔膜密封。当泵被驱动并且施加到面向第一阀室的隔膜侧的力变得大于施加到面向第二阀室的隔膜侧的力时，隔膜允许第一和第二开口与第彼此。

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