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| Application No. | Application Title | Issue Date |
| 20120051946 | MICROPUMP AND DRIVING METHOD THEREOF Provided are a micropump that makes it possible to reduce the entire size and improve pumping performance of fluid, and a method of operating the micropump. The micropump includes a case that forms a first space and a second space that are connected through a connection... | 03/01/2012 |
| 20110296722 | Piezoelectric Pump for Household Electric Appliance Piezoelectric pump for a household electric appliance having a moving wall interposed between a first casing element defining a pumping chamber with the moving wall, and a second casing element applying pressure to the periphery of the moving wall in order to hold the l... | 12/08/2011 |
| 20110256004 | Piezoelectric devices and methods and circuits for driving same A drive circuit (18) produces a drive signal for a pump (10) having a piezoelectric actuator (14), with the piezoelectric actuator (14) forming a part of the drive circuit (18) and serving to shape a waveform of the drive signal. The d... | 10/20/2011 |
| 20110229356 | FLUID CONVEYANCE DEVICE 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 v... | 09/22/2011 |
| 20110190670 | FLUID DISC PUMP WITH SQUARE-WAVE DRIVER A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end wall... | 08/04/2011 |
| 20110171050 | PIEZOELECTRIC PUMP A piezoelectric pump is capable of reliably discharging gas and reliably transporting liquid even when intermittently driven. The piezoelectric pump includes a piezoelectric vibrator, a diaphragm deflected and deformed by the piezoelectric vibrator, a pump chamber inclu... | 07/14/2011 |
| 20110168361 | HEAT DISSIPATION DEVICE AND AIRFLOW GENERATOR THEREOF An exemplary heat dissipation device includes a heat sink defining a plurality of air passages therein, and an airflow generator disposed at a side of the heat sink. The airflow generator includes airflow-generating units stacked together. Each airflow-generating unit i... | 07/14/2011 |
| 20110165001 | HELICALLY ACTUATED POSITIVE-DISPLACEMENT PUMP AND METHOD First and second structures are connected by helical fibers. The orientation between the first and second structures are changed, and by doing so, the positions of the helical fibers are correspondingly changed. The position of change of the helical fibers can be used f... | 07/07/2011 |
| 20110158832 | MEMBRANE MICROPUMP A membrane micropump includes a vibration chamber, at least one flow guide, at least one fluid inlet, at least one fluid outlet, at least one inlet rectifier, at least one outlet rectifier, a vibration membrane and an actuator. The vibration chamber includes at least on... | 06/30/2011 |
| 20110120679 | PIEZOELECTRIC FAN AND COOLING DEVICE A piezoelectric element is attached to a vibrating plate. By expanding and contracting the piezoelectric element, the vibrating plate is bent. The vibrating plate includes removed regions on both sides of a portion to which the piezoelectric element is attached. The vib... | 05/26/2011 |
| 20110103980 | Household Electric Appliance Having a Piezoelectric Pump The invention relates to an electric household appliance comprising a pump having a pumping chamber (11) including a movable wall formed by a diaphragm (12) made of an electrically conductive material comprising an inner surface covered with at least one l... | 05/05/2011 |
| 20110070110 | PIEZOELECTRIC MICRO BLOWER A piezoelectric micro blower includes a blower body that includes a first wall and a second wall. An opening is provided at a portion of the first wall that faces an area of the approximate center of a driver of the piezoelectric micro blower. An opening is provided at ... | 03/24/2011 |
| 20110043937 | MICROVALVE SYSTEM There is described a microvalve system having a first body portion having a fluid channel defined in a face, an electrode disposed in the fluid channel and electrically connectable to a power source, a channel membrane disposed over the fluid channel and aligned with th... | 02/24/2011 |
| 20100296248 | DUAL-CHAMBER FLUID PUMP FOR A MULTI-FLUID ELECTRONICS COOLING SYSTEM AND METHOD A dual-chamber fluid pump is provided for a multi-fluid electronics cooling system and method. The pump has a first fluid path for pumping a first fluid coolant and a second fluid path for pumping a second fluid coolant, with the first fluid path including a first pumpi... | 11/25/2010 |
| 20100293968 | PIEZO-HYDRAULIC COMPRESSOR/PRESSURE OSCILLATOR FOR CRYOGENIC COOLING AND OTHER APPLICATIONS In recent years piezoelectric actuation has been identified as a promising means of driving miniature Stirling devices. It supports miniaturization, has a high power to volume ratio, can operate at almost any frequency, good electrical to mechanical efficiencies, and po... | 11/25/2010 |
| 20100290935 | PUMP ARRANGEMENT COMPRISING A SAFETY VALVE A pump arrangement includes a pump having a pump inlet and a pump outlet, and a safety valve arranged between the pump outlet and an outlet of the pump arrangement and having a valve seat and a valve lid. The valve seat, the pump outlet and the pump inlet are patterned ... | 11/18/2010 |
| 20100260626 | MICROPUMP FOR CONTINUOUS MICROFLUIDICS The invention relates to a micropump comprising an inclusion fluid accommodated in a chamber of the microchannel, and means to convey a portion of said inclusion into the axial area of said chamber and for displacing said portion along the longitudinal axis of the micro... | 10/14/2010 |
| 20100254837 | ACTUATOR FOR MANIPULATING A FLUID, COMPRISING AN ELECTRO-ACTIVE POLYMER OR AN ELECTRO-ACTIVE POLYMER COMPOSITION The invention relates to a microfluidic device comprising an actuator for converting between mechanical and electrical energy comprising an electro-active polymer or electro-active polymer composition, wherein the stiffness of the actuator at or near a first surface or ... | 10/07/2010 |
| 20100239444 | LAYERED PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC PUMP A piezoelectric element that is capable of achieving a larger amount of displacement and in which migration between electrodes hardly occurs, is included in a piezoelectric pump. The piezoelectric pump includes a first excitation electrode opposed to a second excitation... | 09/23/2010 |
| 20100196177 | VIBRATING DEVICE AND PIEZOELECTRIC PUMP 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 residu... | 08/05/2010 |
| 20100158720 | VALVELESS MICROPUMP A valveless micropump for transforming a pressure variation of fluid in a volume variation chamber (8) into an oscillatory flow of fluid (10) by means of a piezoelectric element (7), making the fluid (10) to flow smoothly in channels (5, 6... | 06/24/2010 |
| 20100150754 | PIEZOELECTRIC PUMP A pump body is provided including at least one inlet valve, at least one outlet valve, a substantially rigid top portion, a substantially rigid bottom portion, and collapsible side portions. The pump body also includes a base on or in the bottom portion and defining a r... | 06/17/2010 |
| 20100074775 | DIAPHRAGM PUMP A pump chamber (15) is formed between a piezoelectric vibrator (7) and a valve main plate (10). The valve main plate (10) includes an inlet port (13) at its central portion, and an outlet port (14) in its peripheral portion, and... | 03/25/2010 |
| 20100059127 | Piezoelectric pump and fluid transferring system To provide a piezoelectric pump including: a structure including a piezoelectric element and a support member that supports the piezoelectric element; and a first substrate and a second substrate that sandwich the structure, wherein the piezoelectric pump has: a pump ch... | 03/11/2010 |
| 20100054960 | PULSATION GENERATING MECHANISM, CONNECTING FLOW CHANNEL TUBE, AND FLUID EJECTING APPARATUS A fluid ejecting apparatus having a fluid chamber, an inlet flow channel, and a nozzle configured to eject fluid supplied from the inlet flow channel to the fluid chamber from the nozzle in a pulsed manner by changing the volume of the fluid chamber includes: a diaphrag... | 03/04/2010 |
| 20100021322 | DIAPHRAGM PUMP In a diaphragm pump performing electrostatic atomization, occurrence of defects such as electrolysis of liquid is restricted and enables to electrostatic atomization smoothly. The diaphragm pump 10 comprises a pump chamber unit 1 and a diaphragm unit 2<... | 01/28/2010 |
| 20090314062 | Fluid Actuator, and Heat Generating Device and Analysis Device Using the Same A fluid actuator includes a piezoelectric body (31), a fluid channel (2) having the piezoelectric body (31) on a part of the inner wall thereof and enabling a fluid to move inside, and a surface acoustic wave generation portion (101) for driv... | 12/24/2009 |
| 20090311116 | HIGH FLOW PIEZOELECTRIC PUMP A piezoelectric pump for pumping a fluid at a high flow rate includes a housing and an actuator located within the housing. An electric voltage applied to the actuator causes the actuator to apply a force to a first diaphragm that is proximate to the actuator. A piston ... | 12/17/2009 |
| 20090312709 | SELF-CONTAINED PUMP A self-contained pump is disclosed that is an integrated pump. It has a reservoir, a pumping mechanism, and at least one outlet. The pumping mechanism is for controlled compression of the reservoir to force a required volume of fluid in the reservoir through the at leas... | 12/17/2009 |
| 20090297372 | Dual Chamber Valveless Mems Micropump A valveless MEMS micropump capable of improved efficiency and performance is disclosed. The micropump includes two adjoining chambers separated by a piezoelectric actuated pump membrane. The micropump moves fluid through the chambers through diffuser elements characteri... | 12/03/2009 |
| 20090232684 | PIEZOELECTRIC MICRO-BLOWER 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.... | 09/17/2009 |
| 20090232680 | PIEZOELECTRIC-DRIVEN DIAPHRAGM PUMP A piezoelectric-driven diaphragm pump is comprised of a driving unit (1) having a driving diaphragm (12) and a first housing (11), a replaceable driven unit (2) having a driven film (241) and a second housing (21), and a fixing ... | 09/17/2009 |
| 20090232681 | ULTRASONIC PIEZOELECTRIC PUMP Disclosed is an ultrasonic piezoelectric pump in which a piezoelectric pump is integrated with a fluid pipe without a check valve so that the structure can be simplified. The pump includes a fluid pipe having a hollow part formed therein to permit a fluid to flow from a... | 09/17/2009 |
| 20090232682 | PIEZOELECTRIC MICRO-BLOWER 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... | 09/17/2009 |
| 20090232683 | PIEZOELECTRIC MICRO-BLOWER 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... | 09/17/2009 |
| 20090232685 | FLUID CONVEYANCE DEVICE 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 v... | 09/17/2009 |
| 20090214362 | PIEZOELECTRIC PUMP A piezoelectric pump includes a diaphragm that defines a pump chamber between the diaphragm and a pump body, and a piezoelectric element bonded to a surface of the diaphragm. The piezoelectric element is a bimorph piezoelectric element in which a plurality of piezoelect... | 08/27/2009 |
| 20090214358 | PIEZOELECTRIC FLUID PUMP A compact, high capacity pump for pumping fluid. A first one-way valve is between an inlet port and the pump's fluid chamber. A second one-way valve is between the pump's fluid chamber and an outlet port. A diaphragm separates a piezoelectric stack from the fluid chambe... | 08/27/2009 |
| 20090196778 | LIQUID DISCHARGE CONTROL APPARATUS In a liquid discharge control apparatus which uses a piezoelectric type diaphragm pump, an accumulator having a liquid accumulation cavity and a movable member is communicated to an outlet of the diaphragm pump. In discharge operation of the diaphragm pump, a quantity o... | 08/06/2009 |
| 20090188576 | CHECK VALVE DIAPHRAGM MICROPUMP A micropump device including a first wafer and a second wafer attached to the first wafer. The first and second wafers are configured to define a chamber therebetween having a predetermined volume. A third wafer is attached to the second wafer to define an inlet section... | 07/30/2009 |
