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Class 310/331 - Plural elements


Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter having two or more piezoelectric elements
No. of applications: 40
Last issue date: 04/05/2012


Application No.Application TitleIssue Date
20120080980ELECTROACTIVE ELASTOMER ACTUATOR AND METHOD FOR THE PRODUCTION THEREOF
Described is an electroactive elastomer actuator having at least one first band-shaped electroactive elastomer coating and at least one first and one second surface electrode, which are separated by the at least one first electroactive elastomer coating. At least one se...
04/05/2012
20120080981Piezoelectric Power Generator
A piezoelectric power generator that includes a piezoelectric laminate in which a plurality of rectangular-shaped piezoelectric elements each having electrodes formed on a substrate are connected at both ends thereof to each other, and in which a portion other than conn...
04/05/2012
20120032559ACTUATOR AND ACTUATOR STRUCTURE
An actuator includes a first bending portion having a first electrode layer, a first electrolyte layer on a first surface of the first electrode layer, and a second electrode layer in contact with the first electrolyte layer; and a second bending portion having the firs...
02/09/2012
20110285247ELECTROACTIVE POLYMER TRANSDUCERS FOR SENSORY FEEDBACK APPLICATIONS
Electroactive polymer transducers for sensory feedback applications are disclosed....
11/24/2011
20110187232VIBRATING PIECE SUBSTRATE AND TUNING-FORK VIBRATING PIECE
A vibrating piece substrate includes: a plurality of tuning-fork vibrating pieces each having a base portion, and vibration arm portions and support arm portions extending from the base portion; a frame portion; and a plurality of linking portions connecting the frame p...
08/04/2011
20110107962PIEZOELECTRIC ACTUATORS
Piezoelectric actuators are provided. In some instances, the piezoelectric actuators are high-precision piezoelectric actuators. The piezoelectric beams may have a bi-chevron configuration. Also provided are methods of making the piezoelectric actuators, e.g., using Mic...
05/12/2011
20100277040THIN FILM DETECTOR FOR PRESENCE DETECTION
A transducer (800) is provided where a membrane (830) is formed over a front substrate (615); and a piezoelectric layer (820) is formed over the membrane (830) at an active portion (821) and peripheral portions located adjacent ...
11/04/2010
20100270890PIEZO ACTUATOR
A transducer mechanism has a stacked piezo electric actuators driving arms rotating in different directions and having a structure such that the arms remain generally parallel to each other. A flexible member may be attached to the arms to obtain an extended stroke in a...
10/28/2010
20100246862DEVICE AND METHOD FOR THE EXCITATION AND/OR DAMPING AND/OR DETECTION OR STRUCTURAL OSCILLATIONS OF A PLATE-SHAPED DEVICE USING A PIEZOELECTRIC STRIP DEVICE
An apparatus and a method for the excitation and/or damping and/or detection of structural oscillations of a plate-shaped device by means of a piezoelectric strip device are described. The apparatus comprises a carrier device (1), at a distance from which the pla...
09/30/2010
20100156242Electromechanical actuating drive
An electromechanical actuating drive, in particular a piezoelectric microstepper motor, has two piezoelectric bending transducers having in each case an effective direction not oriented parallel to one another. Said bending transducers act on a drive ring in order, via ...
06/24/2010
20100127601Linear Vibrator
Disclosed herein is an apparatus. The apparatus includes a housing, a first piezo element, a second piezo element, and a mass. The first piezo element and the second piezo element are inside the housing. The mass is movably mounted inside the housing. The mass is config...
05/27/2010
20090315431ELECTRICAL GENERATORS FOR LOW-FREQUENCY AND TIME-VARYING ROCKING AND ROTARY MOTION
A method for generating electrical energy from a first motion having a low and/or variable frequency is provided. The method including: transferring the first motion to a first device; and intermittently transferring the first motion from the first device to a second de...
12/24/2009
20090261688MICROACTUATOR HAVING MULTIPLE DEGREES OF FREEDOM
A MEMS vertical displacement device for vertically displacing and tilting a vertically displaceable platform. The vertically displaceable platform may be displaced using a plurality of recurve actuators configured to provide vertical displacement without horizontal move...
10/22/2009
20090244205PIEZOELECTRIC ACTUATOR, LIQUID TRANSPORTING APPARATUS, AND METHOD FOR MANUFACTURING PIEZOELECTRIC ACTUATOR
A piezoelectric actuator includes a first piezoelectric layer, a second piezoelectric layer stacked on the first piezoelectric layer, a first electrode arranged on the first piezoelectric layer, a second electrode arranged between the first and second piezoelectric laye...
10/01/2009
20090224633ELECTRICAL TO MECHANICAL ENERGY CONVERTER
An energy conversion apparatus having a pair of flexible beams that are supported at first ends thereof from a base. The beams each include at least one piezoelectric material layer. Second ends of each of the beams are operatively coupled to rigid links. The rigid link...
09/10/2009
20090189487ACTUATOR AND ELECTRONIC HARDWARE USING THE SAME
An actuator includes a first beam, a first fixed part, a second beam, a first connective part, and a first fixed electrode. The first beam extends from a first fixed end to a first connective end, and the first fixed part connects the first fixed end and the substrate a...
07/30/2009
20090167114FORCED VIBRATION PIEZO GENERATOR AND PIEZO ACTUATOR
Piezoelectric elements for power generation and/or actuation are described. An aspect is directed to generators utilizing piezoelectric elements for electrical power generation. Such a generator can use one or more arrays of piezoelectric cantilevers for electrical powe...
07/02/2009
20090153935ACTUATOR
An actuator according to the present invention includes: a base 1; a movable section 7 capable of displacement relative to the base 1; elastic supporting members 13a to 13c for supporting the movable section 7 so a...
06/18/2009
20090122381MICROACTUATOR, OPTICAL DEVICE AND EXPOSURE APPARATUS, AND DEVICE MANUFACTURING METHOD
A pair of support members each having a spring section in a part thereof support a mirror element, and a pair of drive mechanisms arranged respectively corresponding to a pair of the support members transform the spring sections of the corresponding support members, the...
05/14/2009
20090085438PIEZOELECTRIC FAN, COOLING DEVICE CONTAINING SAME, AND METHOD OF COOLING A MICROELECTRONIC DEVICE USING SAME
A piezoelectric fan includes a piezoelectric actuator patch (110, 210, 310) and a blade (120, 220, 320) attached to the piezoelectric actuator patch. The blade has a hole (121, 127, 221) in it, and a door (122, 128, 222) is adjacent to the ho...
04/02/2009
20090001855ELECTROACTIVE POLYMER TRANSDUCERS FOR SENSORY FEEDBACK APPLICATIONS
Electroactive polymer transducers for sensory feedback applications are disclosed....
01/01/2009
20080252176ELECTROACTIVE POLYMER TORSIONAL DEVICE
The present invention relates to mechanical-electrical power conversion systems. The systems comprise one or more electroactive polymers that convert between electrical and mechanical energy. When a voltage is applied to electrodes contacting an electroactive polymer, t...
10/16/2008
20080252175Dithering mechanism for eliminating zero-rate bias in a gyroscope
Dithering mechanism and method for eliminating the effects of zero-rate bias in a rate sensor or gyroscope. Both continuously moving and indexing embodiments are disclosed. The mechanism includes a first part mounted in a fixed position centered about a dither axis perp...
10/16/2008
20080174273Piezoelectric Energy Harvester
A mechanism for capturing mechanical energy and converting it to electrical energy for use continually charging or providing emergency power to mobile, battery-powered devices comprises a plurality of elongated piezoelectric elements mounted at one or support points to ...
07/24/2008
20080174205Piezoelectric actuator and electronics device using the same
To provide a piezoelectric actuator that is small in size, large in displacement, high in rigidity, excellent in controllability, and excellent in stability, the present invention provides a piezoelectric actuator, including: a first piezoelectric member that is bent an...
07/24/2008
20080150396ENERGY HARVESTING APPARATUS AND METHOD
An energy harvesting apparatus and method. In one form the apparatus makes use of a pair of flexible beams that are supported at first ends thereof from a base. Second ends of each of the beams are operatively coupled to rigid links. The rigid links are in turn operativ...
06/26/2008
20080079331Mass loaded dipole transduction apparatus
An electromechanical transducer, which provides dipole motion from its housing which is driven by a bender transducer attached to the housing at the outer edge and attached to an inertial mass at its center providing a lower resonance frequency, lower mechanical Q and e...
04/03/2008
20070296308DRIVING DEVICE
A driving device includes a drive source, a driving unit, and a driven member. The drive source is configured and arranged to generate a driving force. The driving unit is coupled to the drive source to move with a reciprocating motion between first and second direction...
12/27/2007
20060290237Electrostrictive compound actuator
The present invention presents a system for a compound actuator. The system includes first and second electrode layers each including two electrode sections, an intermediate electrode layer between the first and second electrode layers, and first and second electrostric...
12/28/2006
20060273692Bimorph switch, bimorph switch manufacturing method, electronic circuitry and electronic circuitry manufacturing method
A bimorph switch electrically connecting a traveling contact and a fixed contact. The switch comprises a substrate having a front face, a rear face, and a through hole penetrating from the front face to the rear face; a fixed contact extending from an edge portion of th...
12/07/2006
20060152112Piezoelectric ceramic element and portable device
Piezo-electric ceramic transducer 1 has upper piezo-electric active layer 5 and lower piezo-electric active layer 6. Upper insulating layer 2 and lower insulating layer 3, between which upper piezo-electric active layer 5 and lo...
07/13/2006
20060138905Piezoelectric fan for an integrated circuit chip
According to some embodiments, a piezoelectric fan is attached to an integrated circuit chip. The piezoelectric fan may, for example, be soldered to the chip and receive power through a via of the integrated circuit chip. ...
06/29/2006
20060061237Piezoelectric/electrostrictive element, method of manufacturing piezoelectric/electrostrictive element, piezoelectric/electrostrictive device, and method of manufacturing piezoelectric/electrostrictive device
In piezoelectric/electrostrictive elements, electrode layers have respective ends projecting outwardly from an end face of a piezoelectric/electrostrictive layer on a side surface where the laminated state of the piezoelectric/electrostrictive layer and the electrode la...
03/23/2006
20060033405Apparatus for the transmission of a deflection of an actuator
An apparatus for the transmission of a deflection of an actuator, in particular of a piezoelectric actuator of an injection valve, comprises at least one first lever device which has a first transmission element which transmits the deflection of the actuator. In this ca...
02/16/2006
20050258715Piezoelectric actuator having minimal displacement drift with temperature and high durability
A piezoelectric bending actuator that is insensitive to temperature changes. The actuator includes a pair of piezoelectric layers. One of the layers bends in response to an applied voltage and the other piezoelectric layer flattens in response to an applied voltage. The...
11/24/2005
20050253487Piezolelectric devices
A piezoelectric device comprising a continuous piezoelectric element (10) extending alternately back and forth to form a plurality of parallel, straight portions (14) arranged in a stack with intermediate linkage portions (15) at alternate ends the ...
11/17/2005
20050168109Piezoelectric/electrostrictive device
A piezoelectric/electrostrictive device is provided, including a pair of mutually opposing thin plate sections and a fixation section for supporting the thin plate sections. A piezoelectric/electrostrictive element is arranged on each of the thin plate sections. The pie...
08/04/2005
20050122002Compact Jacquard selecting card using piezoelectric elements
A compact electronic selection card applicable for use in Jacquard equipment, having a high-density array of selecting hooks which are individually positioned by piezoelectric actuator elements. Each piezoelectric element directly controls a selecting hook for engaging ...
06/09/2005
20050104478Bimorph MEMS devices
A micro-electromechanical dimensioned bimorph structure includes a first element layer structure, and a second element layer structure. The element layer structures are provided in various combinations, including piezoelectric/piezoelectric, antiferroelectric/antiferroe...
05/19/2005
20050057121Surface acoustic wave device and manufacturing method therefor
A surface acoustic wave device has superior electrical power resistance that is obtained by improving stress migration resistance of electrodes. In order to form at least one electrode, for example, on a θ rotation Y-cut (θ=36° to 42°) LiTaO3
03/17/2005
 
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