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Piezoelectric patents



      
           
This page is updated frequently with new Piezoelectric-related patent applications. Subscribe to the Piezoelectric RSS feed to automatically get the update: related Piezoelectric RSS feeds. RSS updates for this page: Piezoelectric RSS RSS


Screen sounder

Screen sounder

Oct probe using pzt

Oct probe using pzt

Oct probe using pzt

Ring laser gyro

Date/App# patent app List of recent Piezoelectric-related patents
10/09/14
20140303688
 Energy harvesting cochlear implant patent thumbnailEnergy harvesting cochlear implant
The invention is related to a totally implantable cochlear implant having a transducer which is a piezoelectric vibration energy harvester to be mounted on the ossicular chain or the tympanic membrane to detect the frequency of oscillations and generate the required voltage to stimulate the relevant auditory nerves. The invention enables patients' continuous access to sound, since it eliminates the outside components of conventional cochlear implants.
10/09/14
20140301596
 Screen sounder patent thumbnailScreen sounder
A screen sounder includes a housing having a front case, a screen supported by the front case, a piezoelectric module mounted with the screen for driving the screen to generate sound or converting vibration of the screen into electric energy, an audio signal source electrically connecting to the piezoelectric module for driving the piezoelectric module to vibrate, a rechargeable module electrically connecting to the piezoelectric module for receiving the electric energy, and a switching control unit electrically connecting with the piezoelectric module for switching the electrical connections between the audio signal source, the rechargeable module and the piezoelectric module.. .
10/09/14
20140300901
 Oct probe using pzt patent thumbnailOct probe using pzt
An optical coherence tomography (oct) probe using lead zirconate titanate (pzt). In the oct probe using pzt, a sine wave is induced from a vibrator made of a piezoelectric element, so that an image in which the scanning range is increased can be captured due to the vibration of the vibrator.
10/09/14
20140300899
 Ring laser gyro patent thumbnailRing laser gyro
A ring laser gyro with no piezoelectric elements for dither detection includes a laser beam receiving unit for receiving a laser beam taken out of a gyro block, a laser beam intensity measuring unit for measuring the intensity of the laser beam received by the laser beam receiving unit, a dither mechanism, a dither control unit for driving the dither mechanism, and a gyro case housing the gyro block, wherein the laser beam receiving unit is secured to the gyro case, the laser beam receiving unit has a laser beam receiving surface for receiving the laser beam from the gyro block to detect a laser beam receiving position on the laser beam receiving surface and output positional information indicating the laser beam receiving position. The dither control unit drives the dither mechanism on the basis of information indicating the amplitude of the laser beam receiving position obtained from the positional information..
10/09/14
20140300252
 Resonating element, resonator, electronic device, electronic apparatus, moving vehicle and method of manufacturing resonating element patent thumbnailResonating element, resonator, electronic device, electronic apparatus, moving vehicle and method of manufacturing resonating element
A piezoelectric resonating element includes a piezoelectric substrate having a rectangular vibrating portion and a thick-walled portion, excitation electrodes and, and lead electrodes. The thick-walled portion includes a fourth thick-walled portion, a third thick-walled portion, a first thick-walled portion, and a second thick-walled portion.
10/09/14
20140300251
 Piezoelectric generating with location signaling patent thumbnailPiezoelectric generating with location signaling
An apparatus including a piezoelectric convertor layer; at least one piezoresistive layer on the piezoelectric convertor layer; and electrical conductor outputs. The at least one piezoresistive layer includes a plurality of spaced apart piezoresistive electrodes.
10/09/14
20140300250
 System for generating and distributing energy from piezoelectric materials patent thumbnailSystem for generating and distributing energy from piezoelectric materials
The invention relates to a system that generates energy from piezoelectric materials, applied mainly to supplying energy in traffic systems. The invention reduces the costs associated with the implementation of the piezoelectric systems on roads or vehicle and pedestrian transit systems, since in some cases they are manufactured in modules.
10/09/14
20140299840
 Graphene laminate with band gap patent thumbnailGraphene laminate with band gap
A graphene laminate includes a first piezoelectric material layer having a negatively-charged surface and a positively-charged surface, a first graphene layer under the first piezoelectric material layer, the first graphene layer contacting the positively-charged surface of the first piezoelectric material layer, a second graphene layer underlying the first graphene layer, and a second piezoelectric material layer under the second graphene layer, the second piezoelectric material layer having a negatively-charged surface and a positively-charged surface, the negatively-charged surface contacting the second graphene layer.. .
10/09/14
20140298950
 Slope-following precision drive patent thumbnailSlope-following precision drive
Apparatus, and a corresponding method for its operation, for precisely moving a movable rotor by urging a motor, such as a piezoelectric motor, into operative engagement with a circumferential rim-like portion of the rotor, with a radial preload force great enough to produce tangential motion in the rim-like portion and thereby to move the rotor in any desired manner and with very high precision. Possible damaging effects of the radial preload force are canceled by the introduction of an oppositely directed radial resistive force, such as by means of one or more pinch rollers positioned opposite the motor and also engaging the rim-like member.
10/09/14
20140298908
 Vibration element, electronic device, electronic apparatus, and moving object patent thumbnailVibration element, electronic device, electronic apparatus, and moving object
A vibration element includes a base section, a support arm extending from the base section, a driving vibration arm extending from the support arm in a direction intersecting with the extending direction of the support arm, a drive section provided to the driving vibration arm, and having a first electrode layer, a second electrode layer, and a first piezoelectric layer disposed between the first electrode layer and the second electrode layer, the first electrode layer being disposed on the driving vibration arm side, and a monitor section adapted to detect a vibration of the driving vibration arm, provided to the driving vibration arm, and having a third electrode layer, a fourth electrode layer, and a second piezoelectric layer disposed between the third electrode layer and the fourth electrode layer, the third electrode layer being disposed on the driving vibration arm side.. .
10/09/14
20140298897
High speed nano wear testing apparatus
The present invention is a nano wear testing apparatus, which preferably includes a linear motor, nano module assembly, piezoelectric member, load cell, tip mounting shaft, stage, and speaker coil. The linear motor preferably repositions the nano module assembly in close contact to the surface of a test sample, which is generally attached to the stage.
10/02/14
20140296895
Fluid ejection device and medical apparatus
A fluid ejection device which ejects a fluid includes: an ejection tube which ejects the fluid; a fluid chamber which communicates with the ejection tube; a piezoelectric element capable of changing a volume of the fluid chamber; a controller which controls a drive voltage applied to the piezoelectric element; and a fluid supplying unit which supplies the fluid to the fluid chamber at a predetermined flow rate. If a maximum frequency available to be set of the drive voltage is fmax [hz] and an amount of change in the volume of the fluid chamber when a maximum value available to be set of the drive voltage is applied to the piezoelectric element to drive the piezoelectric element is v1 [ml], the fluid supplying unit supplies the fluid at the predetermined flow rate above v1×fmax [ml/s]..
10/02/14
20140296892
Fluid ejection device and medical apparatus
A fluid ejection device which ejects a fluid includes: an ejection pipe having an opening to eject the fluid; a fluid chamber which communicates with the ejection pipe and changes in volume due to displacement of a piezoelectric element; a supply channel which communicates with the fluid chamber; an opening/closing unit which is provided on the supply channel and opens and closes the supply channel; a fluid supplying unit which pressurizes the fluid and supplies the fluid to the fluid chamber via the supply channel; and a voltage controller which applies a drive voltage to the piezoelectric element. The voltage controller controls the drive voltage applied to the piezoelectric element so that the drive voltage reaches a predetermined voltage after the supply channel is opened by the opening/closing unit..
10/02/14
20140296716
Ultrasonic transducer device, probe, electronic instrument, and ultrasonic diagnostic device
An ultrasonic transducer device includes a base, a first electrode film, a piezoelectric film, a second electrode film and a first conductive film. The base has a plurality of vibrating film portions arranged in an array pattern.
10/02/14
20140296715
Ultrasonic transducer device, probe, electronic instrument, and ultrasonic diagnostic device
An ultrasonic transducer device includes a base, a plurality of piezoelectric elements, a conductive body and an insulating film. The base has a plurality of vibrating film portions arranged in an array pattern.
10/02/14
20140295138
High performance textured piezoelectric ceramics and method for manufacturing same
A textured pmn-pzt ceramic is created using templated grain growth to align seed crystals in a ceramic matrix powder by tape-casting process. Heat treatment then results in the nucleation and growth of matrix crystals on aligned templates.
10/02/14
20140295064
Printhead with nanotips for nanoscale printing and manufacturing
A nanoprinthead including an array of nanotip cantilevers, where each nanotip cantilever includes a nanotip at an end of a cantilever, and a method for forming the nanoprinthead. Each nanotip may be individually addressable through use of an array of piezoelectric actuators.
10/02/14
20140295057
Anti-icing coating for power transmission lines
Provided are methods and systems for forming piezoelectric coatings on power line cables using sol-gel materials. A cable may be fed through a container with a sol-gel material having a piezoelectric material to form an uncured layer on the surface of the cable.
10/02/14
20140294024
Tunable device, method of manufacture, and method of tuning an electrical device
This description relates to an apparatus, a method of manufacturing, and a method of tuning optical and/or electrical parameters of semiconductor devices and materials, thin film materials, or other devices. In one example, a laser is tuned to produce an adjustable output wavelength by coupling the laser to a tuning material or base such as, for example, a piezoelectric base using a suitable attachment method.
10/02/14
20140293463
Linear ultrasonic motor and lens apparatus and image pickup apparatus using the same
A linear ultrasonic motor includes a vibrator having a piezoelectric element, a movable part applying a pressurization force to the vibrator and bringing the vibrator into pressurized contact with a base part, a cover part being fixed to the base part, a rolling part being rollably held between a movable guide part of the movable part and a cover guide part of the cover part, and a body to be driven having a transmission member that is pivotably supported and being able to move only in the movable direction. The transmission member includes a bias part that abuts on a transmission part of the movable part and applies a biasing force of biasing the movable part to the rolling part, to the transmission part.
10/02/14
20140293461
Drive device, lens barrel and imaging apparatus
A drive device includes a moving body having a driven portion with an engagement holding portion and an insertion portion, and an element holding portion holding an optical element; a piezoelectric driver having a piezoelectric element and a drive axis that moves the moving body while being inserted into the insertion portion; and a leaf spring being inserted into the insertion portion, being held by the moving body and urging the drive axis to the driven portion in a pressing direction. In a state in which the leaf spring is inserted into the insertion portion, the leaf spring is elastically deformed in the insertion portion by inserting the drive axis which is inserted into the insertion portion, and the drive axis is pressed against the driven portion by the leaf spring, while the leaf spring is engaged with the engagement holding portion and held by the moving body..
10/02/14
20140293155
Energy recovery system for recovering pressure energy of touch input to touch screen panel
Embodiments provide the energy recovery system capable of converting mechanical energy of a touch input to a touch screen panel into electrical energy and storing the converted electrical energy. The energy recovery system may include a touch screen panel including a piezoelectric material, an energy recovery device recovering electrical energy generated by the piezoelectric material, and an electrical energy storage device storing the recovered electrical energy..
10/02/14
20140292949
Liquid ejecting head and liquid ejecting apparatus
A piezoelectric layer is integrally formed in such a way that opening portions of a plurality of pressure chambers in a flow channel forming member are covered. In a region that corresponds to a position between adjacent pressure chambers in the piezoelectric layer, a hollow that penetrates the piezoelectric layer or that has a relatively thin thickness in the piezoelectric layer is formed along the sides of the opening of each of the pressure chambers.
10/02/14
20140292948
Liquid ejecting head, liquid ejecting apparatus, and piezoelectric element
A liquid ejecting head includes a piezoelectric element including a first electrode, a second electrode, and a piezoelectric layer between the first and the second electrodes. The piezoelectric layer includes a buffer layer disposed on the first electrode and containing bi and an element selected from al, si, cr, and mn and a complex oxide layer disposed on the buffer layer and having a perovskite structure containing bi, fe, ba, and ti..
10/02/14
20140292945
Liquid ejecting head, liquid ejecting apparatus, and method of manufacturing liquid ejecting head
Provided is a liquid ejecting head which ejects liquid from nozzle holes by changing a pressure in a liquid flow path in a pressure chamber. The liquid ejecting head includes a flow path member which is formed of ceramic, and in which the pressure chamber is formed; and a piezoelectric element which includes at least a first piezoelectric layer which is formed of ceramic.
10/02/14
20140292944
Liquid ejecting head and liquid ejecting apparatus
An ink jet type recording head includes a plurality of pressure generation chambers which are filled with ink, and piezoelectric elements which eject ink droplet through nozzle openings which are provided so as to correspond to each pressure generation chamber by applying pressure to the ink in each pressure generation chamber. The pressure generation chamber has a shape such that the piezoelectric element in the opposite side to a protrusion side in which at least a portion of the piezoelectric element protrudes out of the pressure generation chamber is deformed more easily than that in the protrusion side..
10/02/14
20140292941
Piezoelectric element module, ultrasonic transducer, ultrasonic device, liquid ejecting head, liquid ejecting apparatus, and piezoelectric element module manufacturing method
A first piezoelectric element having a first piezoelectric layer and a second piezoelectric element having a second piezoelectric layer, which is different from the first piezoelectric layer, are included on the same substrate. The first piezoelectric layer has a d constant greater than a d constant of the second piezoelectric layer..
10/02/14
20140292938
Liquid ejecting head module and liquid ejecting apparatus
A unit head has a head main body having a nozzle surface, and a substrate case having a fastening surface fastened to a fixation frame of a frame and accommodating a relay substrate. The fastening surface of a substrate case is formed at a position closer to a surface of an opposite side to a fixation frame than a side surface of a fastening surface side of the head main body, and the head main body is positioned further at an ink ejecting side than the fixation frame with the faster surface being fixed to the fixation frame, the other end of a first cable whose one end is connected to the electrode terminal of a piezoelectric element is connected to the relay substrate, a second cable connected to the relay substrate is drawn to an opposite side to a nozzle surface from a position close to a surface of an opposite side to the fastening surface, and the other end of the second cable is connected to a drive substrate..
10/02/14
20140292936
Liquid ejecting head and liquid ejecting apparatus
A flexible cable includes a portion that is covered by a solder resist and an exposed portion that is not covered by the solder resist, in which the exposed portion contains a wiring terminal and at least continues to a position closer to an outside than an opening of a wiring member insertion side of a wiring vacant portion in a state in which the wiring terminal portion is connected to an element terminal of a piezoelectric element side and in which the wiring vacant portion is filled with an electrically insulating filling material in a state of covering a joining portion between the element terminal and the wiring terminal within the wiring vacant portion, and in a state in which a protective substrate, which forms the wiring vacant portion by partitioning, and the exposed portion of the flexible cable are not in contact with one another.. .
10/02/14
20140292935
Liquid discharge apparatus, piezoelectric actuator, and method for producing liquid discharge apparatus
A liquid discharge apparatus includes a flow passage structure in which a liquid flow passage including a nozzle for discharging a liquid and a pressure chamber communicated with the nozzle, and a liquid sealing layer for covering the pressure chamber are formed; and a piezoelectric actuator which is arranged to contact with the liquid sealing layer of the flow passage structure. The piezoelectric actuator includes: an actuator substrate, which is arranged on a surface of the liquid sealing layer on a side opposite to the pressure chamber and which has a vibration layer and a columnar portion arranged between the liquid sealing layer and the vibration layer; and a piezoelectric portion which is formed as a film on a surface of the vibration layer disposed on a side opposite to the columnar portion..
10/02/14
20140292699
Touch type operation input device
A touch type operation input device capable of accurately detecting pressing force with which an operator presses is provided. The touch type operation input device includes a touch panel including a piezoelectric sensor and a touch sensor, and a pressing force detection unit.
10/02/14
20140292691
Display input device, image forming apparatus including the display input device, and method of controlling the display input device
A display input device includes a display portion for displaying screens, a touch panel portion for detecting a touch position, a recognition portion for recognizing the touch position based on an output of the touch panel portion, a plurality of piezoelectric elements disposed not to be visually recognized from outside, to form a plurality of piezoelectric element pairs each of which includes the elements opposed to each other in a short side direction of the touch panel portion, and a drive portion for supplying a drive signal having a predetermined voltage waveform to the piezoelectric elements one or more times so as to vibrate the piezoelectric elements and the touch panel portion, and so as to start to supply the drive signal to the piezoelectric element pairs at different timings.. .
10/02/14
20140292444
Elastic wave filter
An elastic wave filter includes an electrode finger group in an input side electrode and an electrode finger group in output side electrode each disposed in a taper shape such that elastic waves with mutually different wavelengths propagate on a piezoelectric substrate across from a track tr1 at a low frequency side of a passband to a track tr2 at a high frequency side of the passband. Assuming that a period length p is a wavelength of the elastic wave propagating on the piezoelectric substrate and constituted of a width dimension of the finger and a separation dimension between the adjacent electrode fingers, at least one of the input side idt electrode and the output side idt electrode includes a specific configuration..
10/02/14
20140292437
Resonator element, resonator, oscillator, electronic apparatus, and moving object
A resonator element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge, and a third thick section provided along a third outer edge.
10/02/14
20140292436
Vibration element, vibrator, oscillator, electronic apparatus, and moving object
A vibration element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge thereof, and a third thick section provided along a third outer edge thereof.
10/02/14
20140292434
Vibration element, vibrator, oscillator, electronic apparatus, and moving object
A vibration element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge, and a third thick section provided along another first outer edge.
10/02/14
20140292277
Vehicle charging device
Disclosed is a vehicle charging device for generating electricity by applying pressure to a piezoelectric element through tire rotation by preparing the piezoelectric element in a tire portion of a vehicle. The vehicle charging device according to one embodiment of the present invention includes: an elastic part interposed between a wheel and a tire of the vehicle to be expansible in a radius direction of the wheel and the tire; and a piezoelectric element prepared at an end (or ends) of one side of both sides of the elastic part to generate power by receiving a pressure from the elastic part and connected to a battery of the vehicle to charge the battery with the generated power..
10/02/14
20140292161
Method for producing a piezoelectric multilayer component, piezoelectric multilayer component containing an auxiliary material, and use of an auxiliary material for setting the breaking stress of a piezoelectric multilayer component
Provision is made of a method for producing a piezoelectric multilayer component (1), in which piezoelectric green sheets, at least one ply (21) containing an auxiliary material having a first and a second component and layers (20) containing electrode material are arranged one above another alternately and sintered, wherein, during the sintering, the first and second components of the auxiliary material chemically react, and the at least one ply (21) containing the auxiliary material is degraded. In addition, provision is made of a piezoelectric multilayer component (1) comprising a plurality of alternating layers of electrode material (20) and piezoelectric ceramic and at least one layer (21) of auxiliary material having a breaking load which is reduced compared to the other layers of electrode material, wherein, in addition to the first and second components, the auxiliary material comprises a fifth component, which, at the preferred sintering temperatures for the piezoelectric material, in particular at most 1050° c., at most has a negligible sintering activity and does not react with the piezoelectric material used.
10/02/14
20140292160
Piezoelectric material, piezoelectric element, multilayered piezoelectric element, liquid ejection head, liquid ejection apparatus, ultrasonic motor, optical equipment, vibration apparatus, dust removing apparatus, imaging apparatus, and electronic equipment
Provided is a lead-free piezoelectric material having a satisfactory and stable piezoelectric constant and electric insulation property in a wide practical temperature range. Provided is a piezoelectric material, including a perovskite-type metal oxide represented by the following general formula (1) as a main component, the piezoelectric material containing mn in a content of 0.01 part by weight or more and 0.80 part by weight or less with respect to 100 parts by weight of the perovskite-type metal oxide: (liαxnaαykαzbaβbi0.5α+γ)a(tiα+βfeγ) o3 .
10/02/14
20140292159
Piezoelectric/electrostrictive element and method for manufacturing the same
A piezoelectric/electrostrictive element has a piezoelectric body, a through-hole electrode, a first electrode, a second electrode, a third electrode. The piezoelectric body includes a through-hole in communication with a first main surface and a second main surface.
10/02/14
20140292158
Laminated body and piezoelectric/electrostrictive element
A laminated body has a substrate and a metallic layer. The substrate is composed of an inorganic material.
10/02/14
20140292157
Piezoelectric/electrostrictive element
A piezoelectric/electrostrictive element has a piezoelectric body, a first electrode, a second electrode and a glass layer. The piezoelectric body is formed in a thin film-shape.
10/02/14
20140292156
Piezoelectric/electrostrictive element and wiring substrate
A piezoelectric/electrostrictive element includes a substrate, an adhesive layer, a first conductive layer, an anchor portion and a second conductive layer. The substrate contains a ceramic as a main component.
10/02/14
20140292155
Electro-acoustic transducer with periodic ferroelectric polarization produced on a micromachined vertical structure
A piezoelectric and ferroelectric bulk wave transducer operating at a predetermined frequency includes a block of substrate, having a first thickness and in a first material, and a piezoelectric and ferroelectric transduction plate, having a length, a width and a second thickness, and in a second piezoelectric material, first and second metal electrodes covering the plate in the direction of the length thereof. The plate has first and second ferroelectric domains with alternating polarizations, distributed along the length of the plate according to a periodic pattern of pitch.
10/02/14
20140292153
Temperature drift compensation of mems resonators
A resonator device comprising a piezoelectric material and at least one electrode, the device also provided with a material with a positive coefficient of stiffness, wherein the material is disposed in the device as an electrode or as a separate layer adjacent the piezoelectric material formed as one or more layers in the device. The material that performs the temperature compensating function is selected from the group consisting of ferromagnetic metal alloys, shape-memory metal alloys, and polymers, wherein the selected material has a temperature coefficient that varies with the relative amounts of the individual constituents of the compositions and wherein the composition is selected to provide the material with the positive coefficient of stiffness..
10/02/14
20140292152
Temperature compensating electrodes
A resonator device in which a piezoelectric material is disposed between two electrodes. At least one of the electrodes is formed of a nickel-titanium alloy having equal portions nickel and titanium..
10/02/14
20140292150
Temperature compensated acoustic resonator device having an interlayer
An acoustic resonator comprises: an acoustic resonator device comprises: a composite first electrode disposed over a substrate, the composite first electrode comprising: a first electrically conductive layer provided over the substrate; a first interlayer disposed on the first electrical conductive layer; a buried temperature compensation layer disposed over the first interlayer; a second interlayer disposed over the temperature compensation layer; a second electrically conductive layer disposed over the second interlayer, a piezoelectric layer disposed over the composite first electrode; and a second electrode disposed over the piezoelectric layer.. .
10/02/14
20140292149
Temperature compensated acoustic resonator device
An acoustic resonator device comprises: a substrate comprising a cavity or an acoustic mirror; a first electrode disposed over the substrate; a piezoelectric layer disposed over the first electrode; and a second electrode disposed over the piezoelectric layer. The first electrode or the second electrode, or both, are made of an electrically conductive material having a positive temperature coefficient..
10/02/14
20140292146
Piezoelectric vibration module
Disclosed herein is a piezoelectric vibration module capable of improving adhesion between a piezoelectric element and an external electrode disposed on the piezoelectric element, the piezoelectric vibration module, including: a piezoelectric element printing patterns of a first internal electrode and a second internal electrode therein and having a first external electrode electrically connected to the first internal electrode and a second external electrode electrically connected to the second internal electrode on an external surface thereof, wherein the first external electrode and the second external electrode are made of silver (ag) and are formed on the external surface of the piezoelectric element.. .
10/02/14
20140290842
Head suspension having actuator in which piezoelectric element is bonded with bonding tape, actuator and method of attaching piezolectric element with bonding tape
A head suspension includes a base to be attached to a carriage, a load beam having a rigid part and a resilient part that connects the rigid part to the base, the load beam applying load onto a read/write head, a flexure attached to the load beam and supporting the head, an actuator attaching part located between the base and the head, and a piezoelectric element being deformable in response to a voltage applied thereto to move the head in a sway direction relative to the base. For the head suspension, it bonds the piezoelectric element with a bonding tape to the actuator attaching part and applies an adhesive to fix the piezoelectric element to the actuator attaching part..
10/02/14
20140290828
Method for manufacturing liquid ejecting head
A method for manufacturing a liquid ejecting head including a laminate formed of a flow path substrate having a flow path communicating with nozzle openings that eject a liquid, a first electrode, a piezoelectric layer, and a second electrode, the method including stacking the first electrode, the piezoelectric material, the second electrode, and a reinforcing member on top of one another to form a laminate; heating the laminate to form a piezoelectric layer made of the piezoelectric material; bonding the laminate to the flow path substrate on a first electrode side; and removing the reinforcing member.. .
10/02/14
20140290385
Electronic apparatus and shock detection method
In an electronic apparatus equipped with a mechanism for generating a sound and an oscillation, it is possible to detect an imparted shock with high sensitivity. The electronic apparatus includes: an oscillation unit; a piezoelectric element configured to impart an oscillation due to deformation in correspondence with an applied voltage to the oscillation unit, generating a voltage corresponding to deformation due to a shock imparted to the oscillation unit; an induction element for applying an increased voltage to the piezoelectric element; a first switch performing control as to whether or not to supply an electric current from a power source to the induction element; a second switch for effecting connection or disconnection between the induction element and the piezoelectric element; and a shock detection unit configured to detect a shock imparted to the oscillation unit based on the voltage generated in the piezoelectric element..
09/25/14
20140288430
Ultrasound probe and ultrasound diagnostic imaging apparatus
An ultrasound probe includes a stack including a connecting conductor having conductive patterns and a piezoelectric plate disposed on the connecting conductor. The stack has first dividing slits at predetermined intervals.
09/25/14
20140287958
Cantilevered probes having piezoelectric layer, treated section, and resistive heater, and method of use for chemical detection
The invention provides a liquid cell for an atomic force microscope. The liquid cell includes a liquid cell housing with an internal cavity to contain a fluid, a plurality of conductive feedthroughs traversing the liquid cell housing between the internal cavity and a dry side of the liquid cell, a cantilevered probe coupled to the liquid cell housing, and a piezoelectric drive element disposed on the cantilevered probe.
09/25/14
20140287198
Ink jet recording method and recorded matter
An ink jet recording method includes discharging a first ink composition onto a recording medium using a recording head, in which the first ink composition includes a coloring material, an alkane diol with 4 or more to 8 or fewer carbon atoms, a water-soluble solvent, and water; the recording head discharges the first ink composition using a piezoelectric element, and has a resolution per unit length of 200 dpi or more, and the recording medium has an absorbing layer on the surface thereof, in which a nonpolar component of a surface free energy of the absorbing layer is 20 mn/m or lower.. .
09/25/14
20140286795
Gas control apparatus
A gas control apparatus includes an upper housing to which a second piezoelectric pump is joined, a lower housing to which a first piezoelectric pump is joined, and a diaphragm. The upper housing includes a discharge hole through which gas is discharged.
09/25/14
20140286745
Apparatus and method for rotating fluid controlling vanes in small turbine engines and other applications
Actuation systems and methods for varying the angle of small turbine engine inlet guide vanes (igv) and/or compressor stator vanes (csv). Such systems and methods may employ a piezoelectric inchworm actuator (or a piezo stack actuator or magnetostrictive actuator, depending upon actuation requirements) to actively modify the angle of attack of a single or a cascade of inlet guide vanes or compressor stator vanes.
09/25/14
20140286604
Endo-microscopic probe based on non-resonant scanning method using optical fiber
Disclosed is an endo-microscopic probe based on a non-resonant scanning method using an optical fiber which includes a housing configured to have a specific size, an optical fiber placed within the housing and configured to transfer a light source, a tubular piezoelectric element configured to surround the optical fiber within the housing, include a guide unit for guiding a movement of the optical fiber at the end of the tubular piezoelectric element, and provide a deformation value according to a deformation amount to the optical fiber through the guide unit using an external power source, and a lens unit placed within the tubular piezoelectric element, fixed to an end of the housing, and configured to transfer light output from an end of the optical fiber to a sample.. .
09/25/14
20140285783
Euv-mirror arrangement, optical system with euv-mirror arrangement and associated operating method
An euv mirror arrangement (100) has a multiplicity of mirror elements (110, 111, 112) which are arranged alongside one another and jointly form a mirror surface of the mirror arrangement. Each mirror element has a substrate (120) and a multilayer arrangement (130) applied on the substrate and having a reflective effect with respect to radiation from the extreme ultraviolet range (euv), said multilayer arrangement comprising a multiplicity of layer pairs (135) having alternate layers composed of a high refractive index layer material and a low refractive index layer material.
09/25/14
20140285712
Camera module
An exemplary embodiment of the present invention is provided, the camera module including a housing embedded with a first lens unit including at least one lens, and a driving unit formed at the housing and bonded with a second lens unit including at least one lens, the second lens being optically aligned with the first lens unit, the driving unit including piezoelectric elements moving the second lens unit.. .
09/25/14
20140285557
Printing apparatus
A printing apparatus that discharges liquid droplets onto a recording medium, includes a movable carriage; discharging units, which are installed on the carriage and include nozzles that discharge a liquid, pressure chambers that communicate with the nozzles, and piezoelectric elements provided for each of the pressure chambers; a first circuit substrate, which is installed outside of the carriage, and on which is installed a control signal supply unit that generates control signals; a second circuit substrate, which is installed on the carriage, and on which are installed a booster circuit that generates a plurality of voltages; in which a path length of the control wiring between the first circuit substrate and the second circuit substrate is longer than the path length of the wiring between the second circuit substrate and the piezoelectric elements.. .
09/25/14
20140285556
Liquid discharge apparatus and capacitive load driving circuit
A liquid discharge apparatus includes a discharge section, a charge supply source, first and second signal paths, a control signal generation section and a connection path selection section. The discharge section includes a nozzle configured and arranged to discharge a liquid, a pressure chamber in communication with the nozzle, and a piezoelectric element provided for the pressure chamber.
09/25/14
20140285555
Liquid discharging apparatus
Each of m head units of a print head includes a driving signal generator and a plurality of piezoelectric elements. A common control signal is supplied from a control signal supply portion of a control unit to the respective driving signal generators of the m head units.
09/25/14
20140285553
Liquid discharge apparatus
A liquid discharge apparatus includes first and second discharge sections, first and second connection paths and a voltage generation section. Each of the first and second discharge sections has a nozzle configured and arranged to discharge a liquid, a pressure chamber in communication with the nozzle, and a piezoelectric element.
09/25/14
20140285551
Printing apparatus
A printing apparatus that discharges liquid droplets onto a recording medium, includes a movable carriage; discharging units, which are installed on the carriage and include piezoelectric elements for discharging the liquid; a first circuit substrate, which is installed outside of the carriage, and on which is installed a control signal supply unit that generates control signals; a second circuit substrate, which is installed on the carriage, and on which is installed a circuit that charges or discharges each of the piezoelectric elements according to the control signals; which supplies a power supply voltage and a ground voltage to the second circuit substrate, in which a total path length of the plurality of wirings between the first circuit substrate and the second circuit substrate is shorter than the total path length of the wiring between the second circuit substrate and each of the piezoelectric elements.. .
09/25/14
20140285548
Liquid discharge apparatus
A liquid discharge apparatus includes a discharge section, a charge supply source, first and second signal paths, and a connection path selection section. The connection path selection section uses the first or second signal path to electrically connect a piezoelectric element and the charge supply source.
09/25/14
20140285287
Acoustic wave device
An acoustic wave device includes a piezoelectric substrate, an interdigital transducer (idt) electrode provided on an upper surface of the piezoelectric substrate, a first dielectric film covering the upper surface of the piezoelectric substrate to cover the idt electrode, and a second dielectric film covering an upper surface of the first dielectric film. The second dielectric film includes a thin portion positioned in a tip region of electrode fingers of the idt electrode and a thick portion which is positioned in a middle region of the idt electrode and is thicker than the thin portion.
09/25/14
20140285149
Piezoelectric charging system and electronic device using same
The present disclosure relates to a piezoelectric charging system, which has two operational modes: a vibration mode and a charging mode. The system includes a piezoelectric vibrator, a driving module, a switch selecting module, a rectifying and processing module and a charging control module.
09/25/14
20140285070
Ceramic material, method for producing the ceramic material, and electroceramic component comprising the ceramic material
The invention relates to a ceramic material, comprising lead zirconate titanate, which additionally contains k and optionally cu. The ceramic material can be used in an electroceramic component, for example a piezoelectric actuator.
09/25/14
20140285069
Piezoelectric thin-film multilayer body
A piezoelectric thin-film multilayer body includes a substrate, an adhesive layer on the substrate, a lower electrode layer on the adhesive layer, and a lead-free piezoelectric thin-film layer on the lower electrode layer. The lead-free piezoelectric thin-film layer is composed of lithium potassium sodium niobate (composition formula (naxkyliz)nbo3, 0<x<1, 0<y<1, 0≦z≦1, x+y+z=1).
09/25/14
20140285068
Piezoelectric thin-film element, piezoelectric sensor and vibration generator
A piezoelectric thin-film element includes a substrate, a lower electrode layer formed on the substrate, a piezoelectric thin-film layer that is formed on the lower electrode layer and includes potassium sodium niobate having a perovskite structure represented by the composition formula of (k1-xnax)nbo3 (0.4≦x≦0.7), and an upper electrode layer formed on the piezoelectric thin-film layer. The piezoelectric thin-film layer is formed such that a value of (ec−+ec+)/2 is not less than 10.8 kv/cm and a value of (pr−+pr+)/2 is not more than −2.4 μc/cm2 where ec− and ec+ are intersection points of a polarization-electric field hysteresis loop and the x-axis indicating an electric field and pr− and pr+ are intersection points of the polarization-electric field hysteresis loop and the y-axis indicating polarization..
09/25/14
20140285067
Piezoelectric energy harvesting device or actuator
This invention concerns a piezoelectric energy harvesting device or actuator comprising a piezoelectric material (12) on a substrate (14). The piezoelectric material is divided into a plurality of discrete regions to provide a plurality of piezoelectric elements (16) on the substrate which are electrically insulated from each other.
09/25/14
20140285065
Piezoelectric element drive circuit
A piezoelectric element drive circuit includes an h bridge circuit, an lpf-attached differential amplifier circuit, an amplifier circuit, and an inverter circuit. First and second drive signals output from the h bridge circuit and having opposite phases are applied to a piezoelectric element.
09/25/14
20140285064
Vibration generating apparatus
There is provided a vibration generating apparatus including a vibration transferring member transferring vibrations to outside the vibration generating apparatus, an elastic member having one or more end portions fixed to the vibration transferring member, a mass body vibrating in response to vibrations of the elastic member, and a piezoelectric element installed on one surface of the elastic member so as to be disposed to face the mass body. A lower surface of the mass body has step parts in order to prevent contact between the mass body and the piezoelectric element.
09/25/14
20140285062
Piezoelectricity ceramic, sinter, method for manufacturing same, and piezoelectricity ceramic device using same
The present disclosure provides a piezoelectricity ceramic material. The piezoelectricity ceramic material includes main components that are represented by a general chemical formula of pbzratib(nb2/3ni1/3)1-a-bpl o3+c%baw0.5cu0.5o3 d%sio2 and satisfy the following condition: 0.1≦a≦0.4, 0.2≦b≦0.5, 0.1≦c≦3, and 0.05≦d≦1.
09/25/14
20140285061
Thermomechanical cycle for thermal and/or mechanical energy conversion using piezoelectric materials
A system for generating electrical energy includes a thermal source, an electric field source, a stress source, a piezoelectric component, and a cycle controller coupled to the thermal source, the electric field source, and the stress source. The cycle controller provides control signals to the thermal source, the electric field source, and the stress source to repeatedly cycle the piezoelectric component through the sequence: (a) application of: a first temperature, a first electric field, and a first stress; (b) application of: the first temperature, a second electric field greater than the first electric field, and the first stress; (c) application of: a second temperature, the second electric field, and a second stress greater than the first stress; and (d) application of: the second temperature, the first electric field, and the second stress..


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Piezoelectric topics: Piezoelectric, Piezoresistive Material, Wave Device, Acoustic Wave, Electronic Device, Attenuation, Control Unit

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