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| Application No. | Application Title | Issue Date |
| 20120046520 | PARE PIEZO POWER WITH ENERGY RECOVERY The present invention generally relates to medical systems and apparatus and uses thereof for treating obesity and/or obesity-related diseases, and more specifically, relates to systems and methods for energy recovery in a laparoscopically-placed gastric banding system ... | 02/23/2012 |
| 20120038245 | Smart Material Actuator Adapted for Resonant Operation A smart material actuator having a fixed supporting member, mechanical web, actuating arm, and piezoelectric or smart material stack is disclosed, together with a sensor adapted to indicate the degree of motion of the actuating arms and controller adapted to allow safe ... | 02/16/2012 |
| 20120032557 | VIBRATION GENERATING DEVICE, DRIVING METHOD THEREFOR, FOREIGN SUBSTANCE REMOVING DEVICE, AND OPTICAL DEVICE Provided is a vibration generating device in which more improvement of drive efficiency can be realized than conventional ones. The vibration generating device includes: a piezoelectric element including a piezoelectric material interposed between electrodes; a vibratio... | 02/09/2012 |
| 20120025668 | Piezoelectric thin film element A piezoelectric thin film element includes a bottom electrode, a piezoelectric layer, and a top electrode on a substrate. The piezoelectric layer includes, as a main phase, a perovskite-type oxide. The bottom electrode has a surface roughness of not more than 0.86 nm in... | 02/02/2012 |
| 20120013220 | PIEZOELECTRIC ACTUATOR DRIVE UNIT Disclosed is a piezoelectric actuator drive unit that includes a piezoelectric actuator drive amplifier and a piezoelectric actuator drive unit power supply. Combinations of high and low signal levels of a first control signal, which controls the supply voltage and ampl... | 01/19/2012 |
| 20110317292 | PIEZOELECTRIC ACTUATOR AND LENS BARREL A piezoelectric actuator includes: a plurality of first piezoelectric elements; a first member that is interposed between opposing faces of the plurality of the first piezoelectric elements and that is driven in a first direction by the plurality of the first piezoelect... | 12/29/2011 |
| 20110285244 | ULTRASOUND WAVE GENERATING APPARATUS In one embodiment, there is provided in an ultrasound wave generating apparatus a low output impedance transistor based driver circuit that has the ability to apply a drive signal at a frequency corresponding to an ultrasound transducer's resonant frequency. The low out... | 11/24/2011 |
| 20110273057 | DEVICE AND METHOD FOR CONTROLLING A RESONANT ULTRASOUND PIEZOELECTRIC INJECTOR A device for controlling a resonant ultrasound piezoelectric stage, including: a first stage of increasing a DC voltage to an intermediate DC voltage, a second modulation stage including an inductor connected to the intermediate DC voltage and a first switching transist... | 11/10/2011 |
| 20110260579 | TUBULAR LINEAR PIEZOELECTRIC MOTOR Tubular linear piezoelectric motor (100, 300), and a method for exciting a tubular piezoelectric resonator (101, 301) used in such motor. The motor is comprised of a resonator (101, 301) formed of a cylindrical tube. The tube has length nL comprised... | 10/27/2011 |
| 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 |
| 20110242225 | PIEZOELECTRIC ACTUATOR UNIT AND METHOD FOR TESTING PIEZOELECTRIC ACTUATOR UNIT A piezoelectric actuator unit includes: a wiring board; a piezoelectric actuator which is provided with a piezoelectric layer, a plurality of individual electrodes provided to the piezoelectric layer, a common electrode which faces the plurality of individual electrodes... | 10/06/2011 |
| 20110227449 | ULTRASONIC SENSOR An ultrasonic sensor includes a support body having an opening, a support film closing the opening, a piezoelectric body disposed on the support film in an inner region of the opening in a plan view, a first resin material forming a first space closed off from an outsid... | 09/22/2011 |
| 20110223044 | PIEZOELECTRIC ELEMENT DRIVING CIRCUIT A transformer T1 receives a sinusoidal signal on the primary side. The transformer T1 is provided with a terminal 3, a terminal 5, and a center tap 4 on the secondary side. The center tap 4 is connected to the anode of a diode D... | 09/15/2011 |
| 20110198968 | ARRAY-TYPE ULTRASONIC VIBRATOR An array-type ultrasonic vibrator according to the present invention has an acoustic matching layer that has a plate-like body made of a material having a lower acoustic impedance than a plurality of piezoelectric elements. Signal wiring is formed on the plate-like body... | 08/18/2011 |
| 20110193449 | OSCILLATOR DEVICE An oscillator device comprises a resonator mass which is connected by a spring arrangement to a substrate and a feedback element for controlling oscillation of the resonator mass, which comprises a piezoresistive element connected between the resonator mass and the subs... | 08/11/2011 |
| 20110163631 | ELECTRONIC CONTROL DEVICE FOR A PIEZO-CERAMIC BENDING TRANSDUCER DESIGNED AS A TRIMORPH An electronic control device for a piezo-ceramic bending transducer designed as a trimorph (10) is proposed, wherein a first voltage divider (17) consisting of two resistor branches (18, 19) and powered by a first voltage source (USt1) is... | 07/07/2011 |
| 20110162461 | Ultrasonic Flow Meter With Transducer Assembly, And Methods of Manufacturing The Same A transducer assembly for an ultrasonic flow meter comprises a piezoelectric capsule. In an embodiment, the piezoelectric capsule includes a housing having a central axis, a first end, a second end opposite the first end, and a first inner chamber extending axially from... | 07/07/2011 |
| 20110156537 | ACTUATOR ELEMENT, METHOD OF DRIVING ACTUATOR ELEMENT, METHOD OF MANUFACTURING ACTUATOR ELEMENT, DEVICE INSPECTION METHOD AND MEMS SWITCH An actuator element includes: a piezoelectric body; a pair of electrodes mutually opposing to each other via the piezoelectric body; a diaphragm to which the piezoelectric body sandwiched between the pair of electrodes is bonded; and a base substrate arranged to oppose ... | 06/30/2011 |
| 20110148251 | SYSTEMS AND METHODS FOR OPERATING PIEZOELECTRIC SWITCHES Systems and methods for operating piezoelectric switches are disclosed. A piezoelectric switching system includes a first actuator, a second actuator, and a bias voltage source. The first actuator has a first body electrode, a first gate electrode, and a first contact r... | 06/23/2011 |
| 20110141538 | DRIVE DEVICE It is aimed to provide a drive device capable of realizing appropriate rotation of a driven body about a plurality of drive axes by a drive element while preventing the drive device from requiring higher performance and becoming intricate, and thus leading to higher pow... | 06/16/2011 |
| 20110131838 | DYNAMICALLY ADJUSTABLE ORTHOTIC DEVICE An orthotic device comprises a flexible support structure comprising at least one surface for contacting a body part of a user, a plurality of pressure sensors configured for coupling to a microcontroller, and a plurality of displacement regions. Each region defines a p... | 06/09/2011 |
| 20110132398 | METHOD AND APPARATUS FOR ANTI-FOULING AN ANEMOMETER An apparatus and method for adaptive materials arranged in a variety of orientations and with a wide range of attachment configurations to induce structural vibrations at extremely high frequencies. These mechanical vibrations cause fouling agents to become detached and... | 06/09/2011 |
| 20110127880 | REACTIVE NETWORKS TO REDUCE ACOUSTIC NOISE AND ENSURE MAXIMUM EFFICIENCIES IN DRIVING PIEZOELECTRIC ELEMENTS IN HAPTIC APPLICATIONS A device and method are provided to drive piezoelectric elements in haptic applications. In one embodiment, a pattern generator provides user programmable PWM waveforms to a driver. The load of the driver is an inductor in series with the piezoelectric element. The filt... | 06/02/2011 |
| 20110121686 | DRIVING CIRCUIT FOR VIBRATION-TYPE ACTUATOR A driving circuit is configured to drive a vibration-type actuator including a vibration member and a moving member. The vibration member includes an electro-mechanical energy conversion element and may generate a vibration wave in response to an alternating voltage app... | 05/26/2011 |
| 20110102162 | HAPTIC FEEDBACK GENERATION BASED ON RESONANT FREQUENCY A system that generates a haptic effect generates a drive cycle signal that includes a drive period and a monitoring period. The drive period includes a plurality of drive pulses that are based on the haptic effect. The system applies the drive pulses to a resonant actu... | 05/05/2011 |
| 20110101823 | ACTUATOR The invention provides an actuator for an electric motor and an electric motor including said actuator. The actuator includes one or more body formed from a dielectric elastomer, each body having at least one active region that is directly or indirectly coupled to a dri... | 05/05/2011 |
| 20110101895 | METHODS FOR HYBRID VELOCITY CONTROL OF AT LEAST PARTIALLY RESONANT ACTUATOR SYSTEMS AND SYSTEMS THEREOF A method, computer readable medium, and system for controlling velocity of an at least partially resonant actuator system in accordance with embodiments of the present invention includes determining with an actuator controller computing device a sequence of full bridge ... | 05/05/2011 |
| 20110101824 | ULTRASONIC DIAGNOSTIC APPARATUS There are provided a transducer that irradiates an ultrasonic wave, a transmitter that drives the transducer, and a plurality of power sources that supply a plurality of positive voltages and negative voltages to the transmitter. The transmitter includes a plurality of ... | 05/05/2011 |
| 20110074888 | Piezoelectric Actuator, Method of Driving Same, Liquid Ejection Apparatus and Piezoelectric Ultrasonic Osicllator A method of driving a piezoelectric actuator including: a piezoelectric element containing a piezoelectric body having coercive field points on a negative field side and a positive field side respectively and having asymmetrical bipolar polarization—electric field hys... | 03/31/2011 |
| 20110057541 | HIGH POWER ULTRASONIC TRANSDUCER A high power ultrasonic transducer includes a first ultrasonic transducer cell and at least one second ultrasonic transducer cell disposed on the first ultrasonic transducer cell. The at least one second ultrasonic transducer cell oscillates together with the first ultr... | 03/10/2011 |
| 20110050037 | Method for Operating a Piezoelectric Element A method for operating a piezoelectric element is disclosed. A first voltage is applied to a piezoelectric element and produces a first deflection of the piezoelectric element with a travel. An electrical discharge of the piezoelectric element after the application of t... | 03/03/2011 |
| 20110050035 | ULTRASONIC MOTOR The invention relates to an ultrasonic motor having a multilayer actuator in the form of a multilayer plate, having one or more friction elements or friction layers on its side surfaces and having an electrical exciter apparatus for the actuator. According to the invent... | 03/03/2011 |
| 20110050036 | Bias Circuit for Electric Field Transducers A circuit includes an AC voltage driver configured to output an AC voltage having a given shape and given one or more frequency components. An electric field type transducer is provided including a positive voltage terminal and a negative voltage terminal. A capacitor i... | 03/03/2011 |
| 20110018391 | DOMESTIC APPLICANCE COMPRISING A PIEZOELECTRIC PUMP PROVIDED WITH A SIMPLIFIED POWER SUPPLY CIRCUIT The invention relates to a circuit (20) for supplying power to a piezoelectric pump (10) from the electric network (25). According to the invention, the circuit (20) supplies power to the pump (10) directly at the frequency of the elec... | 01/27/2011 |
| 20110018392 | ULTRASONIC LINEAR DRIVE UNIT COMPRISING A HOLLOW CYLINDRICAL OSCILLATOR The invention relates to an ultrasonic linear drive unit comprising a driving element as an ultrasonic oscillator with two generators for ultrasonic vibrations and a driven element that forms a frictional contact with the driving element, and an electrical excitation so... | 01/27/2011 |
| 20110018390 | Methods for controlling velocity of at least partially resonant actuators systems and systems thereof A method, computer readable medium, and system for controlling velocity of at least partially resonant actuator system includes obtaining at an actuator controller computing system a selected operating velocity within an operational velocity range for at least one of on... | 01/27/2011 |
| 20100320868 | PIEZOELECTRIC-FERROELECTRIC ACTUATOR DEVICE An actuator device is disclosed. The actuator device comprises a stack of piezoelectric-ferroelectric active layers separated by surface electrodes. At least a few of the surface electrodes are independently addressable such that at least two active layers are biasable ... | 12/23/2010 |
| 20100322837 | Gas Storage and Release Using Piezoelectric Materials Embodiments are described that generally relate to the storage and release of a gas using piezoelectric materials.... | 12/23/2010 |
| 20100301701 | VOLTAGE CONVERTER AND DRIVING SYSTEM USING SUCH VOLTAGE CONVERTER A voltage converter is provided for receiving a low input DC voltage and driving a piezoelectric actuator of a fluid transportation device. The voltage converter includes plural capacitors, a resistor and a boost chip. The boost chip is connected with the plural capacit... | 12/02/2010 |
| 20100296184 | VIBRATORY DRIVING DEVICE A vibratory driving device 1 comprising a shaft-like driving member 7, a electromechanical transducer 6 which can incline the driving member 7 and which can also displace the driving member 7 in the axial direction of the driving membe... | 11/25/2010 |
