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1. 发明申请

US20090232682A1 PIEZOELECTRIC MICRO-BLOWER 审中-公开
公开(公告)号：US20090232682A1
公开(公告)日：2009-09-17
申请号：US12472798
申请日：2009-05-27
申请人： Atsuhiko Hirata , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
发明人： Atsuhiko Hirata , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
IPC分类号： F04B43/04
CPC分类号： F04B45/04 , F04B43/046 , F04B45/047 , F04B53/1077
摘要： A piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. The micro-blower has a blower body with a first wall and a second wall. Openings are formed in the respective walls and face a center of a diaphragm. An inflow path allowing the openings to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element to cause the diaphragm to vibrate, a part of the first wall close to the first opening vibrates. Thus, gas can be drawn from the inflow path and discharged from the opening in the second wall.

2. 发明授权

US08678787B2 Piezoelectric micro-blower 有权
标题翻译：压电式微型鼓风机
公开(公告)号：US08678787B2
公开(公告)日：2014-03-25
申请号：US12472833
申请日：2009-05-27
申请人： Atsuhiko Hirata , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
发明人： Atsuhiko Hirata , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
IPC分类号： F04B45/04
CPC分类号： F04B45/04 , F04B43/046 , F04B45/047 , F04B53/1077
摘要： A piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. The micro-blower has a blower body with a first wall and a second wall. Openings are formed in the respective walls and face a center of a diaphragm. An inflow path allowing the openings to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element to cause the diaphragm to vibrate, a part of the first wall close to the first opening vibrates. Thus, gas can be drawn from the inflow path and discharged from the opening in the second wall.
摘要翻译：一种能够有效地输送压缩流体而不使用止回阀并确保足够的流量的压电微型鼓风机。微型鼓风机具有带有第一壁和第二壁的鼓风机主体。开口形成在相应的壁中并面向隔膜的中心。在壁之间形成允许开口与外部连通的流入路径。通过向压电元件施加电压以使隔膜振动，靠近第一开口的第一壁的一部分振动。因此，气体可以从流入路径抽出并从第二壁的开口排出。

3. 发明申请

US20090232683A1 PIEZOELECTRIC MICRO-BLOWER 有权
标题翻译：压电微型鼓风机
公开(公告)号：US20090232683A1
公开(公告)日：2009-09-17
申请号：US12472833
申请日：2009-05-27
申请人： ATSUHIKO HIRATA , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
发明人： ATSUHIKO HIRATA , Gaku Kamitani , Hiroaki Wada , Midori Sunaga , Shungo Kanai
IPC分类号： F04B43/04
CPC分类号： F04B45/04 , F04B43/046 , F04B45/047 , F04B53/1077
摘要： A piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. The micro-blower has a blower body with a first wall and a second wall. Openings are formed in the respective walls and face a center of a diaphragm. An inflow path allowing the openings to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element to cause the diaphragm to vibrate, a part of the first wall close to the first opening vibrates. Thus, gas can be drawn from the inflow path and discharged from the opening in the second wall.
摘要翻译：一种能够有效地输送压缩流体而不使用止回阀并确保足够的流量的压电微型鼓风机。微型鼓风机具有带有第一壁和第二壁的鼓风机主体。开口形成在相应的壁中并面向隔膜的中心。在壁之间形成允许开口与外部连通的流入路径。通过向压电元件施加电压以使隔膜振动，靠近第一开口的第一壁的一部分振动。因此，气体可以从流入路径抽出并从第二壁的开口排出。

4. 发明申请

US20090142209A1 Piezoelectric Pump 有权
标题翻译：压电泵
公开(公告)号：US20090142209A1
公开(公告)日：2009-06-04
申请号：US12351158
申请日：2009-01-09
申请人： Atsuhiko Hirata , Shungo Kanai , Gaku Kamitani
发明人： Atsuhiko Hirata , Shungo Kanai , Gaku Kamitani
IPC分类号： F04B17/03
CPC分类号： F04B43/046 , H01L41/0471 , H01L41/083 , H01L41/0973 , H01L41/257
摘要： A piezoelectric pump capable of generating a large displacement at a central portion of a piezoelectric element even when a driving voltage is relatively low and preventing short-circuits caused by migration. The piezoelectric pump includes a pump body with a pump chamber, and a piezoelectric element that closes the pump chamber. The central area and the peripheral area of the piezoelectric element are bent in opposite directions by applying voltages to the piezoelectric element so that the volume of the pump chamber is changed. The piezoelectric element is a laminate including a plurality of piezoelectric layers with electrodes interposed therebetween. The central area and the peripheral area of each piezoelectric layer are polarized opposite to each other in the thickness direction, and the electrodes are formed such that voltages in the same direction in the thickness direction are applied to the central area and the peripheral area of each piezoelectric layer. Since voltages at the same potential are applied to the electrodes formed in the same planes of the piezoelectric layers, short-circuits caused by migration can be prevented.
摘要翻译：即使在驱动电压相对较低并且防止迁移引起的短路的情况下，也能够在压电元件的中央部产生较大的位移的压电泵。压电泵包括具有泵室的泵体和关闭泵室的压电元件。通过向压电元件施加电压使压电元件的中心区域和周边区域沿相反方向弯曲，使得泵室的体积发生变化。压电元件是包括多个压电层的层叠体，其间具有电极。每个压电层的中心区域和周边区域在厚度方向上彼此相反地极化，并且电极形成为使得厚度方向上相同方向的电压施加到每个的中心区域和周边区域压电层。由于将相同电位的电压施加到形成在压电层的同一平面上的电极，所以可以防止由迁移引起的短路。

5. 发明授权

US08162629B2 Piezoelectric pump 有权
标题翻译：压电泵
公开(公告)号：US08162629B2
公开(公告)日：2012-04-24
申请号：US12351158
申请日：2009-01-09
申请人： Atsuhiko Hirata , Shungo Kanai , Gaku Kamitani
发明人： Atsuhiko Hirata , Shungo Kanai , Gaku Kamitani
IPC分类号： F04B17/00
CPC分类号： F04B43/046 , H01L41/0471 , H01L41/083 , H01L41/0973 , H01L41/257
摘要： A piezoelectric pump includes a pump body with a pump chamber, and a piezoelectric element that closes the pump chamber. The central area and the peripheral area of the piezoelectric element are bent in opposite directions by applying voltages to the piezoelectric element so that the volume of the pump chamber is changed. The piezoelectric element is a laminate including a plurality of piezoelectric layers with electrodes interposed therebetween. The central area and the peripheral area of each piezoelectric layer are polarized opposite to each other in the thickness direction, and the electrodes are formed such that voltages in the same direction in the thickness direction are applied to the central area and the peripheral area of each piezoelectric layer. Since voltages at the same potential are applied to the electrodes formed in the same planes of the piezoelectric layers, short-circuits caused by migration can be prevented.
摘要翻译：压电泵包括具有泵室的泵体和关闭泵室的压电元件。通过向压电元件施加电压使压电元件的中心区域和周边区域沿相反方向弯曲，使得泵室的体积发生变化。压电元件是包括多个压电层的层叠体，其间具有电极。每个压电层的中心区域和周边区域在厚度方向上彼此相反地极化，并且电极形成为使得厚度方向上相同方向的电压施加到每个的中心区域和周边区域压电层。由于将相同电位的电压施加到形成在压电层的同一平面上的电极，所以可以防止由迁移引起的短路。

6. 发明授权

US08684707B2 Piezoelectric microblower 有权
标题翻译：压电微型鼓风机
公开(公告)号：US08684707B2
公开(公告)日：2014-04-01
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 , F04B35/04
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。

7. 发明申请

US20090242813A1 Piezoelectric Valve 审中-公开
标题翻译：压电阀
公开(公告)号：US20090242813A1
公开(公告)日：2009-10-01
申请号：US12485407
申请日：2009-06-16
申请人： Atsuhiko Hirata , Shungo Kanai , Yuki Takahashi
发明人： Atsuhiko Hirata , Shungo Kanai , Yuki Takahashi
IPC分类号： F16K31/02
CPC分类号： F16K31/005
摘要： A piezoelectric valve includes a valve body having a valve chamber and a piezoelectric element that is bent and displaced by application of a voltage thereto and thereby opening and closing a channel opening. The piezoelectric element is a rectangular shape, and both ends thereof in the length direction are fixedly held by the valve body. The piezoelectric element has a first region in a central part and a second region adjacent to both ends thereof. The first region and the second region are bent and displaced oppositely by application of a voltage thereto such that the central part of the piezoelectric element opens and closes the channel opening.
摘要翻译：压电阀包括具有阀室和压电元件的阀体，压电元件通过施加电压而弯曲和位移，从而打开和关闭通道开口。压电元件为矩形，其长度方向的两端由阀体固定。压电元件具有中心部分的第一区域和与其两端相邻的第二区域。第一区域和第二区域通过施加电压而相反地弯曲和位移，使得压电元件的中心部分打开和关闭通道开口。

8. 发明申请

US20080290759A1 PIEZOELECTRIC VIBRATOR 有权
标题翻译：压电振动器
公开(公告)号：US20080290759A1
公开(公告)日：2008-11-27
申请号：US12187965
申请日：2008-08-07
申请人： Hiroaki Kaida , Shungo Kanai , Hitoshi Sakaguchi
发明人： Hiroaki Kaida , Shungo Kanai , Hitoshi Sakaguchi
IPC分类号： H01L41/04 , H01L41/24
CPC分类号： H03H9/177 , H03H9/0207 , H03H9/131 , H03H9/562 , Y10T29/42
摘要： An energy-trapping strip piezoelectric vibrator utilizing a third harmonic overtone of a thickness shear mode is provided. A piezoelectric vibrator 1 has a strip piezoelectric ceramic substrate 2 polarized in a longitudinal direction, and first and second excitation electrodes 3 and 4 provided on first and second principal surfaces 2a and 2b of the piezoelectric ceramic substrate 2. An excitation region 5 including a piezoelectric vibration portion that includes a portion where the first and second excitation electrodes 3 and 4 overlap and that utilizes harmonics of the thickness shear mode is formed. A region around the piezoelectric vibration portion is set as a non-excitation region. At least a region of the non-excitation region neighboring the piezoelectric vibration portion is a region having the same polarization axis direction as the excitation region 5 and a relatively small polarization degree or is an unpolarized region.
摘要翻译：提供了利用厚度剪切模式的三次谐波泛音的能量捕获带压电振动器。压电振动器1具有沿纵向极化的带状压电陶瓷基板2，以及设置在压电陶瓷基板2的第一和第二主面2a，2b上的第一和第二激励电极3,4。形成包括第一和第二激励电极3和4重叠的部分并且利用厚度剪切模式的谐波的振动部分。压电振动部周围的区域被设定为非激励区域。至少与压电振动部分相邻的非激发区域的区域是具有与激发区域5相同的偏振轴方向和相对较小偏振度的区域或者是非偏振区域。

9. 发明授权

US06433654B1 Laminated piezoelectric component 有权
标题翻译：层叠压电元件
公开(公告)号：US06433654B1
公开(公告)日：2002-08-13
申请号：US09574884
申请日：2000-05-19
申请人： Shungo Kanai , Masao Gamo
发明人： Shungo Kanai , Masao Gamo
IPC分类号： H03H905
CPC分类号： H03H9/0561 , H03H9/1035 , H03H9/58
摘要： A laminated piezoelectric component or filter is arranged such that a change in the resonance frequency before and after a high temperature heat treatment such as reflowing is minimized and the distribution of the resonance frequency is also minimized. The laminated filter includes a piezoelectric substrate having a vibrating electrode provided on the back surface of the substrate, cover substrates, and adhesives located between the piezoelectric substrate and cover substrate. The change in the center frequency Fo due to the heat applied to the piezoelectric substrate during reflowing is canceled by the change of the center frequency Fo caused by the synthesized stress imparted to the piezoelectric substrates from the cover substrates and adhesives.
摘要翻译：叠层压电元件或滤波器被布置成使得诸如回流之类的高温热处理之前和之后的谐振频率的变化被最小化，并且共振频率的分布也被最小化。层压滤波器包括具有设置在基板的背面上的振动电极的压电基板，盖基板和位于压电基板和盖基板之间的粘合剂。由于在回流期间施加到压电基板的热量的中心频率Fo的变化由于由覆盖基板和粘合剂施加到压电基板的合成应力引起的中心频率Fo的变化而被抵消。

10. 发明授权

US06377135B1 Piezoelectric resonator and piezoelectric resonant element 有权
标题翻译：压电谐振器和压电谐振元件
公开(公告)号：US06377135B1
公开(公告)日：2002-04-23
申请号：US09648526
申请日：2000-08-26
申请人： Shungo Kanai , Masao Gamo
发明人： Shungo Kanai , Masao Gamo
IPC分类号： H03H917
CPC分类号： H03H9/56 , H03H9/0561 , H03H9/1035
摘要： First resonant electrodes are provided on one main surface of a piezoelectric plate, a second resonant electrode is provided on the other main surface of the piezoelectric plate, such that the first and second resonant electrodes face each other. An energy trap-type piezoelectric vibrating section is thus provided by the first and second resonant electrodes, and a capacitor section is provided in a position separated from the vibrating section. The capacitor section has a first capacitor electrode provided on the upper surface of the piezoelectric plate, and has a second capacitor electrode provided on the bottom surface of the piezoelectric plate. Further, an outer edge portion of the first capacitor electrode is spaced from an outside edge of the piezoelectric plate, thus providing a margin area except at the portions led out to the outside edge of the piezoelectric plate.
摘要翻译：第一谐振电极设置在压电板的一个主表面上，第二谐振电极设置在压电板的另一个主表面上，使得第一和第二谐振电极彼此面对。因此，由第一和第二谐振电极提供能量陷波型压电振动部，并且在与振动部分隔开的位置设置电容器部。电容器部分具有设置在压电板的上表面上的第一电容器电极，并且具有设置在压电板的底表面上的第二电容器电极。此外，第一电容器电极的外边缘部分与压电板的外边缘间隔开，从而在引出到压电板的外边缘的部分之外提供边缘区域。

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