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1. 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。

2. 发明授权

US08287253B2 Fluid conveyance device 有权
标题翻译：流体输送装置
公开(公告)号：US08287253B2
公开(公告)日：2012-10-16
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 , H01L41/047
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。

3. 发明申请

US20090232685A1 FLUID CONVEYANCE DEVICE 有权
标题翻译：流体输送装置
公开(公告)号：US20090232685A1
公开(公告)日：2009-09-17
申请号：US12476395
申请日：2009-06-02
申请人： Gaku Kamitani , Atsuhiko Hirata
发明人： Gaku Kamitani , Atsuhiko Hirata
IPC分类号： F04B43/04
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。

4. 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.

5. 发明申请

US20090010780A1 Micropump 有权
标题翻译：微型泵
公开(公告)号：US20090010780A1
公开(公告)日：2009-01-08
申请号：US12238535
申请日：2008-09-26
申请人： Gaku Kamitani , Atsuhiko Hirata
发明人： Gaku Kamitani , Atsuhiko Hirata
IPC分类号： F04B43/04
CPC分类号： F04B43/046
摘要： A micropump having a diaphragm portion, a valve portion of an intake-side check valve, and a valve portion of a discharge-side check valve formed in a single elastic-member sheet. A piezoelectric actuator is attached onto a back surface of the diaphragm portion. The elastic-member sheet is sandwiched between a first case member and a second case member, the elastic-member sheet providing sealing between both case members. A vibration chamber is defined between the elastic-member sheet and the first case member, the vibration chamber housing the piezoelectric actuator. A pump chamber is defined between the elastic-member sheet and the second case member.
摘要翻译：具有隔膜部分，进气侧止回阀的阀部分和形成在单个弹性构件片中的排出侧单向阀的阀部分的微型泵。压电致动器附着在隔膜部分的后表面上。弹性构件片夹在第一壳体构件和第二壳体构件之间，弹性构件片材在两个壳体构件之间提供密封。在弹性构件片和第一壳体构件之间限定振动室，振动室容纳压电致动器。在弹性构件片和第二壳构件之间限定有泵室。

6. 发明申请

US20090010779A1 Piezoelectric Micropump 有权
标题翻译：压电微泵
公开(公告)号：US20090010779A1
公开(公告)日：2009-01-08
申请号：US12234858
申请日：2008-09-22
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
摘要： A piezoelectric micropump in which a pump chamber is isolated by a diaphragm. A piezoelectric element is disposed on a back surface of the diaphragm, and the diaphragm is deformed by bending deformation of the piezoelectric element to change the volume of the pump chamber and transport fluid in the pump chamber. A support member for supporting a back surface of the piezoelectric element is provided so that the support member inhibits bending of a peripheral portion of the diaphragm in a reverse direction. The support member thus prevents the piezoelectric element from being floated. Accordingly, the displacement of the piezoelectric element can be reliably transmitted as the change in volume of the pump chamber, thereby enhancing the fluid transportation performance.
摘要翻译：一种压电微型泵，其中泵室由隔膜隔离。压电元件设置在隔膜的后表面上，并且隔膜通过压电元件的弯曲变形而变形，以改变泵室的容积并在泵室中输送流体。提供用于支撑压电元件的背面的支撑构件，使得支撑构件防止隔膜的周边部分沿相反方向弯曲。因此，支撑构件防止压电元件浮动。因此，压电元件的位移能够随着泵室的体积变化而可靠地传递，从而提高流体输送性能。

7. 发明授权

US08454327B2 Piezoelectric micropump 有权
标题翻译：压电微型泵
公开(公告)号：US08454327B2
公开(公告)日：2013-06-04
申请号：US12234858
申请日：2008-09-22
申请人： Atsuhiko Hirata , Gaku Kamitani
发明人： Atsuhiko Hirata , Gaku Kamitani
IPC分类号： F04B17/00 , F04B45/047 , F04B43/04
CPC分类号： F04B43/046
摘要： A piezoelectric micropump in which a pump chamber is isolated by a diaphragm. A piezoelectric element is disposed on a back surface of the diaphragm, and the diaphragm is deformed by bending deformation of the piezoelectric element to change the volume of the pump chamber and transport fluid in the pump chamber. A support member for supporting a back surface of the piezoelectric element is provided so that the support member inhibits bending of a peripheral portion of the diaphragm in a reverse direction. The support member thus prevents the piezoelectric element from being floated. Accordingly, the displacement of the piezoelectric element can be reliably transmitted as the change in volume of the pump chamber, thereby enhancing the fluid transportation performance.
摘要翻译：一种压电微型泵，其中泵室由隔膜隔离。压电元件设置在隔膜的后表面上，并且隔膜通过压电元件的弯曲变形而变形，以改变泵室的体积并在泵室中输送流体。提供用于支撑压电元件的背面的支撑构件，使得支撑构件防止隔膜的周边部分沿相反方向弯曲。因此，支撑构件防止压电元件浮动。因此，压电元件的位移能够随着泵室的体积变化而可靠地传递，从而提高流体输送性能。

8. 发明授权

US08308454B2 Fluid conveyance device 有权
公开(公告)号：US08308454B2
公开(公告)日：2012-11-13
申请号：US12476395
申请日：2009-06-02
申请人： Gaku Kamitani , Atsuhiko Hirata
发明人： Gaku Kamitani , Atsuhiko Hirata
IPC分类号： F04B17/00 , H01L41/047
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.

9. 发明授权

US09714651B2 Vibrating device and piezoelectric pump 有权
公开(公告)号：US09714651B2
公开(公告)日：2017-07-25
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： F04B43/00 , F04B43/04 , H01L41/09 , F04B45/027 , H01M8/04082
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.

10. 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。

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