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Piezo patents



      

This page is updated frequently with new Piezo-related patent applications.




Date/App# patent app List of recent Piezo-related patents
07/14/16
20160205325 
 Driver and image instrument patent thumbnailDriver and image instrument
A driver includes a piezoelectric sheet, a fixing frame, a moving frame, and a control circuit. The piezoelectric sheet includes a first piezoelectric body portion which bends in a first direction, a second piezoelectric body portion which bends in a second direction that intersects at right angles with the first direction, and a connection portion which connects the first and second piezoelectric body portions.
Olympus Corporation


07/14/16
20160204761 
 Acoustic resonator and  manufacturing the same patent thumbnailAcoustic resonator and manufacturing the same
There are provided an acoustic resonator and a method of manufacturing the same. The acoustic resonator includes a resonance part including a first electrode, a second electrode, and a piezoelectric layer disposed between the first and second electrodes.
Samsung Electro-mechanics Co., Ltd.


07/14/16
20160204717 
 Piezoelectirc energy harvesting system with frequency mismatch tolerance patent thumbnailPiezoelectirc energy harvesting system with frequency mismatch tolerance
An impedance matching circuit is provided for use with a piezotransducer that includes a parasitic capacitor comprising: an inductor coupled in parallel with the parasitic capacitor; a peak and valley detection circuit configured to detect output voltage waveform peaks and valleys; a first switch circuit configured to bias flip the output voltage waveform at a selectable first time relative to a detected peak and at a selectable first time relative to a detected valley; a second switch circuit configured to couple the inductor to the energy storage circuit at a selectable second time following each output voltage bias flip; an energy monitoring circuit to provide an indication of energy flow from the inductor to the energy storage circuit following each output voltage bias flip; and a maximum power point tracking (mppt) circuit configured to select the first time and the second time based at least in part upon the indicated energy flow.. .

07/14/16
20160204337 
 Layered body patent thumbnailLayered body
A layered body including a polymeric piezoelectric body which includes an optically active aliphatic polyester (a) having a weight average molecular weight of from 50,000 to 1,000,000 and has crystallinity obtained by a dsc method, of from 20% to 80%, and a layer (x) which is in contact with the polymeric piezoelectric body and has an acid value of 10 mg koh/g or less.. .
Mitsui Chemicals, Inc.


07/14/16
20160204336 
 Piezoelectric ceramic, piezoelectric element, piezoelectric device and piezoelectric ceramic manufacturing method patent thumbnailPiezoelectric ceramic, piezoelectric element, piezoelectric device and piezoelectric ceramic manufacturing method
Where 0≦v≦1, 0≦w≦1, 1≦b≦6, 2≦c≦19, b+2c−1≦d≦b+2c and b<c where b, c and d are integers.. .

07/14/16
20160204335 
 Piezoelectric ceramic, piezoelectric element, and electronic appliance patent thumbnailPiezoelectric ceramic, piezoelectric element, and electronic appliance
(where 0.09≦x≦0.30, 0.025≦y≦0.085, 0.986≦a≦1.02). .

07/14/16
20160204333 
 Piezoelectric sensor patent thumbnailPiezoelectric sensor
The present disclosure provides a highly sensitive piezoelectric sensor in which mixing of electromagnetic noise into signals output from a piezoelectric device is suppressed. The present disclosure provides a piezoelectric sensor including a piezoelectric device which includes a piezoelectric film having an insulating film and a piezoelectric layer stacked on one principal surface of the insulating film and a signal electrode layer stacked on one principal surface of the piezoelectric film, an amplifier electrically connected to the signal electrode layer, and a shield member which is not electrically connected to the signal electrode layer and is composed of a grounded conductor, wherein the piezoelectric film, the signal electrode layer, and the amplifier are accommodated inside the shield member..
Murata Manufacturing Co., Ltd.


07/14/16
20160202825 
 Screen state control method, device, and touchscreen terminal patent thumbnailScreen state control method, device, and touchscreen terminal
An embodiment of the present document provides a screen state control method, device and a touchscreen terminal, the screen state control method is used for the touchscreen terminal, and the touchscreen terminal includes: a piezoresistive pressure sensor placed below a screen of the terminal, wherein a metal resistance strain gauge is adsorbed onto a substrate material of the piezoresistive pressure sensor; the screen state control method includes: generating an analog signal according to a pressure on the terminal screen; converting the analog signal into a digital signal; and controlling the screen state of the terminal to switch between on and off according to the digital signal.. .
Zte Corporation


07/14/16
20160202519 
 Liquid crystal display having improved lateral visibility patent thumbnailLiquid crystal display having improved lateral visibility
A liquid crystal display according to an exemplary embodiment of the present invention includes: a first insulation substrate; a thin film transistor disposed on the first insulation substrate; a pixel electrode connected to the thin film transistor; a second insulation substrate facing and spaced apart from the first insulation substrate; a common electrode disposed on the second insulation substrate; a liquid crystal layer disposed between the pixel electrode and the common electrode; and one or more piezoelectric elements overlying one or more portions of at least one of the pixel electrode and the common electrode.. .
Samsung Display Co., Ltd.


07/14/16
20160202505 
 Graphene-based terahertz devices patent thumbnailGraphene-based terahertz devices
Disclosed is a graphene-based terahertz device that includes a top graphene layer, a bottom graphene layer, and a middle layer disposed between the top graphene layer and the bottom graphene layer. The middle layer is a liquid crystal layer, a piezocrystal layer, an ionic liquid layer, or an ion gel layer.
National University Of Singapore


07/14/16
20160202366 

Force feedback electrodes in mems accelerometer


A microelectromechanical system (mems) accelerometer having separate sense and force-feedback electrodes is disclosed. The use of separate electrodes may in some embodiments increase the dynamic range of such devices.
Agency For Science Technology And Research (a*star)


07/14/16
20160201456 

Downhole tool


The present invention relates to a downhole tool (10) to be submerged into a well fluid from a top of a well, comprising a first tool section (21), a tool housing (3) having an inner face (4), a downhole communication module (1) for communicating through a well fluid in a downhole well to operate the downhole tool, comprising a piezoelectric transceiver (5) having a first face (6) and a second face (7) and being arranged in the tool housing, wherein an element (8) is arranged between the piezoelectric transceiver and the tool housing, and the element is arranged in abutment with the first face of the piezoelectric transceiver and the inner face of the housing, so that the tool housing acts as a transducer when the piezoelectric transceiver is activated and enlarges in a radial direction of the tool housing, forcing the tool housing outwards and sending a signal through the well fluid. The present invention also relates to a downhole system and a communication method..
Welltec A/s


07/14/16
20160200103 

Liquid ejection head and liquid ejection device


A liquid ejection head includes a plurality of liquid ejection units, each including a plate-like piezoelectric element, a first substrate and a second substrate laid one on the other in this order, the units being laid one on the other. The first substrate defines a plurality of pressure chambers for storing liquid, each of the pressure chambers communicating with an ejection port for ejecting liquid.
Canon Kabushiki Kaisha


07/14/16
20160200101 

Liquid ejecting head and liquid ejecting apparatus


A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.. .
Seiko Epson Corporation


07/14/16
20160199225 

Micro-droplet delivery device and methods


Micro-droplet delivery devices and methods are described where the device may comprise a piezoelectric actuator having a piezoelectric chip that is operatively coupled to a drug package under a preloading force. The actuator is configured to generate an acoustic pressure within the drug package to dispense droplets of an agent from an aperture, e.g., to the corneal surface of the eye.

07/14/16
20160199031 

Matching member and ultrasound probe including the same


Provided are a matching member and an ultrasound probe including the matching member. The ultrasound probe includes a piezoelectric layer for converting an ultrasound wave to an electric signal or an electric signal to an ultrasound wave; and a matching layer disposed on the piezoelectric layer and having a particle-in-binder (pib) structure in which a plurality of conductive particles and a binder are mixed, wherein at least one of the plurality of conductive particles includes: a core; and a shield formed of a different material than that of the core and surrounding a surface of the core..
Samsung Medison Co., Ltd.


07/07/16
20160198269 

Headphone


A headphone is disclosed that includes a headband and a pair of sound emitting units. The headband is a band-shaped body that is curved in an arch shape.
Murata Manufacturing Co., Ltd.


07/07/16
20160198268 

Electronic apparatus


An electronic apparatus 1 having a panel 10, a housing 60 for supporting the panel 10, and a piezoelectric element unit 30 attached to the panel 10, the panel 10 becomes bent by the piezoelectric element unit 30 in such a manner that a region of the panel 10 immediately above the piezoelectric element unit 30 in a longitudinal direction thereof is raised higher than a surrounding region, and thus a part of the human body in contact with the panel 10 vibrates and delivers a sound, wherein the panel 10 is attached to the housing 60 by a double-sided adhesive tape 70 provided along a periphery of the panel 10 and an adhesive 71 applied along the double-sided adhesive tape 70.. .
Kyocera Corporation


07/07/16
20160197609 

Mounting arrangement for piezoelectric sensor device


An apparatus or installation comprises a surface (2) and at least one piezoelectric sensor device (18, 27, 90) that is a piezoelectric touch switch comprising at least one piezoelectric sensor (13), located below the surface (2) so that the surface (2) functions as an overlay to the piezoelectric touch switch, the piezoelectric sensor device (18, 27, 90) configured so that the piezoelectric sensor (13) bends in response to a force or pressure exerted on the surface (2) causing the surface (2) to bend. The apparatus (1) or installation comprises continuously adjustable compression adjusting means (6) that operate on the backer piece (5) to compress the piezoelectric sensor device (18, 27, 90) and the at least one squeezer (7) between the overlay (2) and the backer piece (5), for compensating the surface or mounting tolerances..
Aito Interactive Oy


07/07/16
20160197596 

Film bulk acoustic resonator filter


An acoustic resonator comprising a substantially horizontal membrane of piezoelectric material with upper and lower metal electrodes on its upper and lower faces, said membrane being attached around its perimeter to the inner side walls of a rectangular interconnect frame by an attaching polymer, the side walls of the package frame being substantially perpendicular to the membrane and comprising conducting vias within a dielectric matrix, the conducting vias running substantially vertically within the side walls, the metal electrodes being conductively coupled to the metal vias by a feature layer over the upper surface of the membrane and top and bottom lids coupled to top and bottom ends of the interconnect frame to seal the acoustic resonator from its surroundings.. .
Zhuhai Advanced Chip Carriers & Electronic Substrate Solutions Technologies Co. Ltd.


07/07/16
20160197593 

Method for fabricating film bulk acoustic resonator filters


An acoustic resonator comprising a substantially horizontal membrane of piezoelectric material with upper and lower metal electrodes on its upper and lower faces, said membrane being attached around its perimeter to the inner side walls of a rectangular interconnect frame by an attaching polymer, the side walls of the package frame being substantially perpendicular to the membrane and comprising conducting vias within a dielectric matrix, the conducting vias running substantially vertically within the side walls, the metal electrodes being conductively coupled to the metal vias by a feature layer over the upper surface of the membrane and top and bottom lids coupled to top and bottom ends of the interconnect frame to seal the acoustic resonator from its surroundings.. .
Zhuhai Advanced Chip Carriers & Electronic Substrate Solutions Technologies Co. Ltd.


07/07/16
20160197263 

Systems and methods for implementing efficient magnetoelectric junctions


Systems and methods in accordance with embodiments of the invention implement efficient magnetoelectric junctions (mejs). In one embodiment, an mej system includes: at least one mej, and a first layer including a piezoelectric material disposed proximate at least one mej; where the straining of at least some portion of the first layer including a piezoelectric material causes at least some portion of at least one mej to experience a stress and a related strain..
Inston, Inc.


07/07/16
20160197262 

Generator unit for energy harvesting with a single force input point


A generator unit to harvest energy from motion is disclosed which comprises a support (6) with a connection member (7) for attachment to a movable object (8), at least a first body (3) and a second body (9) supported by the support and configured to move relatively to each other and with a varying, preferably magnetic field (4) spatially in between, one of the first or second body comprising at least one electricity generating member (2) of piezoelectric, electromagnetic or electrostatic type to produce electricity when mechanically deformed or moved, and a field engagement part (5) configured to move in the varying field when the first and second bodies move relatively to each other and generate a varying mechanical deformation or movement of the electricity generating member.. .
Meggitt A/s


07/07/16
20160197213 

Bare quantum dots superlattice photonic devices


Manipulation of the passivation ligands of colloidal quantum dots and use in qd electronics. A multi-step electrostatic process is described which creates bare qds, followed by the formation of qd superlattice via electric and thermal stimulus.
University Of South Florida


07/07/16
20160196843 

Multilayer disk drive motors having out-of-plane bending


Various embodiments concern a gimbaled flexure having a dual stage actuation structure. The flexure comprises a gimbal on which a motor is mounted.
Hutchinson Technology Incorporated


07/07/16
20160196842 

Piezoelectric element, piezoelectric actuator, and head suspension


A piezoelectric element easily and surely forms polymer coatings on peripheral end faces of the piezoelectric element without deteriorating a yield of the piezoelectric element. The piezoelectric element is manufactured by a method including steps of cutting a piezoelectric element out from a base piezoelectric material plate so that peripheral end faces are formed to define a peripheral shape of the piezoelectric element, and forming polymer coatings on at least objective areas of the peripheral end faces of the piezoelectric element by vapor deposition polymerization, respectively..
Nhk Spring Co., Ltd.


07/07/16
20160195994 

Touch input device


A touch input device includes a touch panel, a press detection signal generating unit and a touch detection signal generating unit. The touch panel is formed by laminating a piezoelectric sensor and a capacitive sensor.
Murata Manufacturing Co., Ltd.


07/07/16
20160195971 

Touch sensor


A touch sensor that includes a pressure detection sensor and a position detection sensor. The pressure detection sensor and the position detection sensor are sequentially disposed from an operation surface side of the touch sensor.
Murata Manufacturing Co., Ltd.


07/07/16
20160195439 

Pressure sensor for detecting force


A method, a device and use for measurement of a force with a pressure sensor made of a piezoelectric material. The change in the capacitance of the pressure sensor is used for force measurement so that no load amplifier is necessary for measurement and as a result the measuring system as a whole is miniaturized..
Ceramtec Gmbh


07/07/16
20160194961 

Piezoelectric damping rings


A blisk assembly for vibration dampening includes a disk portion extending circumferentially about a central axis of the blisk, a plurality of blades integrally coupled to the disk, and a piezoelectric damping ring that includes a damping ring and a plurality of piezoelectric elements coupled to the damping ring. The disk portion includes a groove configured to receive the piezoelectric damping ring.
Rolls-royce Corporation


07/07/16
20160194249 

Lead-free piezoceramic material based on bismuth sodium titanate (bst)


The invention relates to a lead-free piezoceramic material based on bismuth sodium titanate (bst) having the following parent composition: x(bi0.5na0.5)tio3-ybatio3-zsrtio3 where x+y+z=1 and 0<x<1, 0<y<1, 0≦z≦0.07 or x(bi0.5na0.5)tio3-ybatio3-zcatio3 where x+y+z=1 and 0<x<1, 0<y<1, 0<z≦0.05 or x(bi0.5na0.5)tio3-y(bi0.5k0.5)tio3-zbatio3 where x+y+z=1 and 0<x<1, 0<y<1, 0≦z<1, characterized by addition of a phosphorus-containing material in a quantity that gives a phosphorus concentration of from 100 to 2000 ppm in the piezoceramic material.. .
Pi Ceramic Gmbh


07/07/16
20160193828 

Piezoelectric element drive circuit and state detection method, and image recording device


Provided are a piezoelectric element drive circuit and state detection method, and an image recording device which realize state detection of a piezoelectric element inexpensively and with a suppressed circuit scale in a drive circuit for rapidly driving a large-capacity load that uses negative voltage drive. An output potential (vout) of a boost unit (bst) is detected in a state in which vs_amp supplied to an amplification unit (amp) is set to a voltage lower than a maximum rating of a transistor (fet1) by sw1, supply of vs_fet to the boost unit (bst) is blocked by sw2, and an individual electrode (28) of a piezoactuator (30) is pulled down to vs_fet via a resistor (r6)..
Fujifilm Corporation


07/07/16
20160193613 

Method and manipulating particles


A method and apparatus for manipulating polarizable dielectric particles. The method includes positioning a liquid containing the particles above a surface of a piezoelectric material (2).
University Of Leeds


07/07/16
20160192905 

Piezoelectric crystal elements of shear mode


Piezoelectric crystal elements are provided having preferred cut directions that optimize the shear mode piezoelectric properties. In the discovered cut directions, the crystal elements have super-high piezoelectric performance with d15, d24 and d36 shear modes at room temperature.
Ctg Advanced Materials, Llc


07/07/16
20160192900 

Device for utilizing transmission ultrasonography to enable ultrasound-guided placement of central venous catheters


Ultrasound is typically performed with the use of an external transcutaneous probe that emits ultrasonic energy and measures the timing of reflected waves, thus allowing measurement of fluid flow or formation of a two-dimensional image. Clinically, the modality is limited by attenuation of the signal with increasing depth of penetration of the ultrasound into tissues, as well as by similarities in echo-genicity between different tissues.
The Johns Hopkins University


07/07/16
20160192601 

Plant cultivation device


A plant cultivation device includes a case (100), a temperature control module (200), and a circulation fan (310). A cultivation room (110) is formed in the case (100).
Cal-comp Biotech Co., Ltd.


06/30/16
20160192081 

Audio apparatus, audio system, image display apparatus, and image projection apparatus


An audio apparatus includes a housing, a piezoelectric vibration unit provided to the housing and having a piezoelectric element, and a communication unit for receiving an audio signal. When a received audio signal is applied to the piezoelectric element while a load of the audio apparatus is applied to the piezoelectric vibration unit, the piezoelectric element is deformed causing deformation of the piezoelectric vibration unit, whereby a contact surface in contact with the audio apparatus vibrates and generate a sound..

06/30/16
20160191017 

Co-integrated bulk acoustic wave resonators


An electrical circuit assembly can include a semiconductor integrated circuit, such as fabricated including cmos devices. A first lateral-mode resonator can be fabricated upon a surface of the semiconductor integrated circuit, such as including a deposited acoustic energy storage layer including a semiconductor material, a deposited piezoelectric layer acoustically coupled to the deposited acoustic energy storage layer, and a first conductive region electrically coupled to the deposited piezoelectric layer and electrically coupled to the semiconductor integrated circuit.

06/30/16
20160190431 

Polymer foam-based piezoelectric materials and manufacture


Thermally stable piezoelectric polymer foams (ferroelectrets) with high piezoelectric activity for sensing and actuation. The invention further includes a method of fabricating such foams in an environmentally friendly manner..

06/30/16
20160190430 

Piezoceramic material with reduced lead content


The invention relates to a piezoceramic material with reduced lead content, based on potassium sodium niobate (psn) and having a defined parent composition. According to the invention the manner of addition of a mixture of pb, nb and optionally ag and optionally mn gives a wide sintering range together with reproducible electrical and mechanical properties of the material..

06/30/16
20160190429 

Piezoelectric film and piezoelectric ceramics


An object is to cause a piezoelectric film to perform a piezoelectric operation at a higher voltage than the conventional piezoelectric film. An aspect of the present invention is a piezoelectric film, wherein a voltage at which a piezoelectric butterfly curve that is a result obtained by measuring a piezoelectric property of a piezoelectric film takes a minimum value is larger by 2 v or more than a coercive voltage of a hysteresis curve that is a result obtained by measuring a hysteresis property of said piezoelectric film.

06/30/16
20160190427 


Disclosed are a nanofiber web piezoelectric material and a method of producing the same, wherein a spinning solution of polylactic acid (pla) in a solvent is electrospun, yielding a nanofiber web, thereby exhibiting piezoelectric properties without additional drawing. This piezoelectric material is remarkably cost-effective, can exhibit superior piezoelectric properties, can be used to manufacture inexpensive piezoelectric products, and obviates any additional drawing because the pla chain is drawn during electrospinning.

06/30/16
20160190426 

Piezoelectric vibrator and manufacturing piezoelectric vibrator


A piezoelectric vibrator has a piezoelectric vibrating reed mounted on an upper layer base substrate through a conductive adhesive, in which the piezoelectric vibrating reed includes a first vibrating arm and a second vibrating arm extending along a first direction and arranged side by side in a second direction, a base supporting the first vibrating arm and the second vibrating arm and a first support arm and a second support arm positioned in the outer side of the first vibrating arm and the second vibrating arm in the second direction and bonded to the upper layer base substrate, in which an extrusion amount of the conductive adhesive in the inner side of the first support arm and the second support arm is smaller than an extrusion amount of the conductive adhesive in the outer side of the first support arm and the second support arm.. .

06/30/16
20160190425 

Method for manufacturing piezoelectric actuator


A method for manufacturing a piezoelectric actuator is disclosed that includes forming a vibration plate, forming a plurality of electrodes on the vibration plate, forming a piezoelectric layer on the electrodes, and forming a common electrode on the piezoelectric layer.. .

06/30/16
20160190423 

Elastic wave device and manufacturing same


In an elastic wave device, idt electrodes on a piezoelectric substrate are electrically connected to wiring electrodes. A support member covers at least portions of the wiring electrodes.

06/30/16
20160187298 

Probe and manufacturing method thereof


Disclosed herein is a probe including: an acoustic module including a piezoelectric layer configured to generate ultrasonic waves, a matching layer configured to reduce a difference in acoustic impedance between the piezoelectric layer and an object, and a backing layer configured to absorb ultrasonic waves generated by the piezoelectric layer and transmitted backward from the piezoelectric layer; a plurality of attenuation layers provided at both edges of the upper surface of the acoustic module, and configured to attenuate ultrasonic waves generated by the acoustic module; and a lens layer disposed to cover the upper surfaces of the attenuation layers, and configured to focus ultrasonic waves transmitted forward from the piezoelectric layer at a predetermined point.. .

06/30/16
20160187183 

Sensor module of a wim system and mesurement method


A sensor module for measuring axle speeds and weights of double-track vehicles which travel in a direction of travel (l) along a carriageway with two lanes includes a plurality of piezoelectric strip sensors (a, b, c, d) that are arranged in a first lane group (i) and a second lane group (ii). All the strip sensors (a, b, c, d) are spaced from each other in the direction of travel (l) via a secure longitudinal offset (lad), which is greater than the maximum wheel contact length, and are offset from one another by between one centimeter and fifteen centimeters in the transversal direction.

06/30/16
20160187166 

Customizable embedded sensors


A method of constructing a sensor includes depositing a first material in a predetermined arrangement to form a structure. The depositing results in at least one void occurring within the structure.

06/30/16
20160186712 

Sensor module for a pressure-measuring sheathed-element glow plug


A sensor module having a sensor housing, at least one piezoelectric converter element that is disposed in the sensor housing, and at least one insulating member that is disposed in the sensor housing alongside the converter element. The insulating member has on its outer periphery at least one recess in which a contacting system of the converter element extends.

06/30/16
20160185118 

Liquid ejection apparatus and formimg liquid ejection apparatus


A liquid ejection apparatus and method of manufacture are disclosed. One apparatus includes a pressure chamber, a diaphragm covering the pressure chamber, and a piezoelectric element having a piezoelectric component positioned opposing the pressure chamber.

06/30/16
20160185117 

Liquid discharge producing the same


A liquid discharge apparatus includes: a pressure chamber; a film covering the pressure chamber; a piezoelectric element disposed on the film and including a piezoelectric part, a first electrode, and a second electrode, wherein the first electrode is disposed on a first side of the piezoelectric part facing the pressure chamber, and the second electrode is disposed on a second side of the piezoelectric part opposite the first side; a gold trace connected to the first electrode or the second electrode; and a first metal part made of a metal material except for gold and positioned between the film and the gold trace. The first metal part is laminated with the gold trace..

06/30/16
20160185116 

Piezoelectric actuator, liquid discharging producing piezoelectric actuator


There is provided a piezoelectric actuator including: a plurality of piezoelectric elements forming first and second piezoelectric element rows, and including first, second electrodes and piezoelectric portion; an electrode conductive portion; a contact section; a plurality of drive wires,; and conductive wires. A part of the drive wires corresponding to the piezoelectric elements of the second piezoelectric element row are extended toward the contact section while passing between two adjacent piezoelectric elements of the first piezoelectric element row which are adjacent in the first direction.

06/30/16
20160185115 

Liquid jet manufacturing liquid jet apparatus


There is provided a liquid jet apparatus including a channel substrate having a plurality of pressure chambers and a film covering the plurality of pressure chambers, a piezoelectric layer, a plurality of individual electrodes, a common electrode, and a trace extending from one of the plurality of individual electrodes to pass through between two adjacent individual electrodes of the plurality of individual electrodes. An opening of the piezoelectric layer is provided between the two adjacent individual electrodes, and a metallic film is formed to cover the trace in such an area of the trace as to overlap with the opening positioned between the two adjacent individual electrodes..

06/30/16
20160184613 

High intensity focused ultrasonic piezoelectric actuator and manufacturing the same


Disclosed is a focused ultrasonic piezoelectric actuator having a novel type of piezoelectric device for focusing ultrasonic waves. The focused ultrasonic piezoelectric actuator includes a dome-shaped piezoelectric body for focusing ultrasonic waves and a rim configured to facilitate focusing of ultrasonic waves of the body and injection of the dome-shaped piezoelectric body during a powder injection molding process, remove warpage of the dome-shaped body during a sintering process, and reinforce focusing intensity of the ultrasonic waves.

06/30/16
20160184595 

Piezoelectric medical implant


Various medical implants and methods of using the implants are disclosed. In an embodiment, the implants include piezoelectric polymers for treating unwanted medical conditions of a patient.

06/30/16
20160184506 

Injector with piezo motor system with wave form tuning


A piezo motor (150) may be tuned to a specific frequency range having a small deviation from an operational frequency range of a magnetic resonance imaging system component. This may be done by applying a pressure to the piezo motor (150), generating at least one signal via a control board (200) and where this signal is at a selected frequency within the specific frequency range applying the signals to the piezo motor (150), measuring a vibration frequency of the piezo motor (150), and varying the applied pressure to the piezo motor (150).

06/30/16
20160184494 

Prohealing piezoelectric coatings


Provided herein is a prohealing piezoelectric coating and the method of making and using the same.. .

06/30/16
20160184491 

Prohealing piezoelectric coatings


Provided herein is a prohealing piezoelectric coating and the method of making and using the same.. .



Piezo topics: Piezoelectric, Transducer, Ultrasonic, Electric Actuator, Electronic Device, Electronic Apparatus, Damping Force, Radial Flow, Semiconductor Material, Semiconductor, Sound Transducer, Ultrasound, Synchronous, Asynchronous, Liquid Adhesive

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