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Piezo patents



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


Composite substrate

Ngk Insulators

Composite substrate

Piezoelectric device and method of fabricating the same

Samsung Electro-mechanics

Piezoelectric device and method of fabricating the same

Piezoelectric device and method of fabricating the same

Sony

Drive device and imaging apparatus

Date/App# patent app List of recent Piezo-related patents
04/16/15
20150105716
 Physical means and methods for inducing regenerative effects on living tissues and fluids patent thumbnailnew patent Physical means and methods for inducing regenerative effects on living tissues and fluids
A system for the administration of modified plasma to a subject, including: (a) a non thermal plasma (ntp) emitting source for emitting a plasma beam; (b) a plasma coupling mechanism (pcm) with a plasma beam dish having at least one opening for the passage of the plasma beam; the plasma beam dish having a first surface and a second opposite surface. The first surface of the plasma beam dish includes: at least one coupling element selected from the group consisting of: (1) at least one ferroelectric element for providing the field; (2) at least one ferromagnetic element for providing the field; (3) at least one piezoelectric element for providing the field; and (4) at least one piezomagnetic element for providing the field.
Orteron (t.o) Ltd.
04/16/15
20150105663
 Ultrasonic device, ultrasonic probe, ultrasonic diagnostic apparatus, and  manufacturing ultrasonic device patent thumbnailnew patent Ultrasonic device, ultrasonic probe, ultrasonic diagnostic apparatus, and manufacturing ultrasonic device
An ultrasonic device includes a substrate, a first piezoelectric body, a second piezoelectric body, and an acoustic matching section. The substrate has a first surface that is a flat surface.
Seiko Epson Corporation
04/16/15
20150105294
 Piezoelectric microcantilever sensors for biosensing patent thumbnailnew patent Piezoelectric microcantilever sensors for biosensing
A piezoelectric microcantilever for sensing compounds or molecules. The piezoelectric microcantilever, may include at least one electrode, an insulation layer, a receptor, an immobilization layer, a non-piezoelectric layer and a piezoelectric layer the sensor is capable of self actuation and detection.
Drexel University
04/16/15
20150104295
 Piezoelectric damper system for an axial turbomachine rotor patent thumbnailnew patent Piezoelectric damper system for an axial turbomachine rotor
The present application relates to a rotor of a compressor or axial turbomachine comprising a vibration-damping system equipped with piezoelectric transducers distributed circularly and connected to dissipative resonant electric circuits. The circuits are closed and are equipped with a resistor and a coil.
Universite Libre De Bruxelles
04/16/15
20150104047
 Electronic apparatus, storage medium and information notification method patent thumbnailnew patent Electronic apparatus, storage medium and information notification method
When a driving module is performing processing of vibrating a piezoelectric vibration module based on a sound signal in an electronic apparatus, a determination module determines whether or not an ear putting position specified by an ear putting position specifying module is close to a reference position. When the processing is being performed, a notification module notifies the user at least one of that the ear putting position is appropriate and that the ear putting position is inappropriate, based on a determination result of the determination module..
Kyocera Corporation
04/16/15
20150103629
 Correction of detecting depth and calculation of speed of moving objects based on time of flight of ultrasound pulses patent thumbnailnew patent Correction of detecting depth and calculation of speed of moving objects based on time of flight of ultrasound pulses
During transmission, speed of ultrasound pulses gradually reduces due to their energy loss from acoustic impedance. So, calculating a detecting depth with fixed speed of the ultrasound pulses will distort ultrasound images.
04/16/15
20150103423
 Drive device and imaging apparatus patent thumbnailnew patent Drive device and imaging apparatus
There is provided a drive device including a movable body, and a fixing member that supports, with a drive shaft driven by a piezoelectric element expanded and contracted in response to an applied voltage and a sub shaft provided in parallel with the drive shaft, the movable body connected with the drive shaft movably in an axial direction. The movable body includes a rotation regulating member that supports the sub shaft and regulates rotation of the movable body with the drive shaft as a rotation center, and an impact dispersing part that disperses an impact on the piezoelectric element when inclined to the drive shaft..
Sony Corporation
04/16/15
20150103234
 Drive controller, imaging apparatus and drive control method patent thumbnailnew patent Drive controller, imaging apparatus and drive control method
There is provided a drive controller including a determination part that compares a target stop position of a movable body, which is driven by a piezoelectric actuator driven by a piezoelectric element expanded and contracted in response to an applied voltage, with a real position of the movable body acquired on the basis of a position sensor, and determines whether or not the target stop position matches with the real position, and a drive control part that turns off energization of the piezoelectric actuator when the target stop position matches with the real position while the movable body is being driven by the piezoelectric actuator.. .
Sony Corporation
04/16/15
20150102750
 Apparatus for driving piezo actuator and  driving the same patent thumbnailnew patent Apparatus for driving piezo actuator and driving the same
There are provided an apparatus for driving a piezo actuator and a method of driving the same. The apparatus includes: a control unit generating a digital control signal and converting the digital control signal into an analog control signal; a driving unit amplifying and not inverting the analog control signal to generate a first driving signal and amplifying and inverting the analog control signal to generate a second driving signal, with respect to a predetermined common voltage, and applying the first and second driving signals to both terminals of a piezo actuator; and an offset determining unit determining an offset in the first and second driving signals based on a voltage according to a current flowing in the piezo actuator, wherein the control unit generates the digital control signal to have an intermediate level in a predetermined offset detection section..
Samsung Electro-mechanics Co., Ltd.
04/16/15
20150102708
 Piezoelectric device and  fabricating the same patent thumbnailnew patent Piezoelectric device and fabricating the same
There is provided a piezoelectric device including: a body portion having a plurality of piezoelectric layers stacked therein; and internal electrodes disposed in the body portion with at least one of the plurality of piezoelectric layers interposed therebetween and including a shrinkage inhibitor having at least one of a flake shape and a plate shape, wherein an angle formed by an interface between the internal electrode and the piezoelectric layer on which the internal electrode and the piezoelectric layer are in contact and a long side direction of the shrinkage inhibitor is 15° or less.. .
Samsung Electro-mechanics Co., Ltd.
04/16/15
20150102707
new patent

Composite substrate


A composite substrate 10 includes a supporting substrate 12 and a piezoelectric substrate 14 which are bonded to each other. In this embodiment, the supporting substrate 12 and the piezoelectric substrate 14 are bonded to each other by an adhesive layer 16.
Ngk Insulators, Ltd.
04/16/15
20150102706
new patent

Piezoelectric element and vibrator including the same


There is provided a piezoelectric element including: a piezoelectric body including positive electrode layers and negative electrode layers alternately stacked on element layers; a polymer layer stacked on at least one surface of the piezoelectric body; a first external electrode stacked so as to contact the polymer layer; and a second external electrode disposed to be spaced apart from the first external electrode and stacked so as to contact the polymer layer.. .
Samsung Electro-mechanics Co., Ltd.
04/16/15
20150102705
new patent

Elastic wave device


An elastic wave device includes a high acoustic velocity film configured such that a bulk wave propagates at a higher acoustic velocity than an elastic wave that propagates in a piezoelectric film, a low acoustic velocity film configured such that a bulk wave propagates at a lower acoustic velocity than a bulk wave that propagates in the piezoelectric film is laminated on the high acoustic velocity film, the piezoelectric film is laminated on the low acoustic velocity film, and an idt electrode is laminated on one surface of the piezoelectric film. In an upper structure section, an energy concentration ratio of a main mode which is an elastic wave is not less than about 99.9% and an energy concentration ratio of a high order mode which is spurious is not more than about 99.5%..
Murata Manufacturing Co., Ltd.
04/16/15
20150102704
new patent

Super-piezoelectric composite fiber mats for power generation and soft actuators


A piezoelectric device includes a fiber mat comprising polymer fibers with ferroelectric particles embedded in the polymer fibers. The ferroelectric particles are oriented to generate a net polarization in the fiber mat.
Kent State University
04/16/15
20150102253
new patent

Piezoelectric materials for low sintering


The present invention relates to a piezoelectric material for low sintering and more particularly, to piezoelectric materials for low sintering having a composition formula of pb(zr, ti)o3—pb(ni, nb)o3 (hereinafter referring to as ‘pzt-pnn’). The pzt-pnn piezoelectric material according to the present invention shows excellent piezoelectric properties compared to the convention piezoelectric materials even at a low sintering temperature of 950° c.
Samsung Electro-mechanics Co., Ltd.
04/16/15
20150102241
new patent

Valve for metering in a flowing medium


A valve for metering a flowing medium, in particular a fluid, having a metering opening situated in the fluid flow and surrounded by a valve seat, a valve needle that controls the metering opening and that has a closing head that works together with the valve seat to close and release the metering opening, a piezoelectric actuator that acts on the valve needle to release the metering opening, and an elastic resetting element that acts on the valve needle to close the metering opening. To minimize the required stroke of the piezoelectric actuator for a required stroke of the closing head of the valve needle, the point of action of the resetting element on the valve needle is situated on or close to the end of the valve needle that bears the closing head..
Robert Bosch Gmbh
04/16/15
20150102124
new patent

Nozzle replaceable atomizer with automatic abnormality detecting function


A nozzle replaceable atomizer with automatic abnormality detecting function is provided. In the atomizer, when a detachable spray head is assembled to a main machine, a microcomputer serves to automatically set a piezoelectric element at an optimal operating frequency.
04/16/15
20150101731
new patent

Method and electrical gap setting for a piezoelectric pressure sensor


A method for electrically setting a gap for a piezoelectric pressure sensor. The method includes positioning a piezoelectric flex element on a tray; attaching a voltage source to the piezoelectric flex element of a piezoelectric pressure sensor; applying a voltage from the voltage source to the piezoelectric flex element; curing an adhesive between the piezoelectric flex element and the tray while the piezoelectric flex element is deflected by the voltage; and stopping the voltage from the voltage source to the piezoelectric flex element when the adhesive has been cured..
Sercel Inc.
04/16/15
20150101610
new patent

Opening and closing device and respiratory assistance device


A respiratory assistance device 10 includes: a mask 13 having an expiratory hole 13a; an expiratory valve 15 provided in the mask 13, for opening and closing the expiratory hole 13a; and a control unit 17 for performing overall control on the entire device. The mask 13 and the expiratory valve 15 together form an opening and closing device.
Metran Co., Ltd.
04/16/15
20150101323
new patent

Using gravity and piezoelectric elements to produce electric power


A hydroelectric power plant comprising a pipe from a water source in a mountain range which is made to open into a much larger in diameter piston cylinder at a much lower elevation. The piston therein is driven by water pressure to drive a gear train operatively connected to an electric generator on its far end.
04/09/15
20150099085

Piezoelectric ceramic composition


This invention provides for a piezoelectric ceramic composition having a lead-free alkaline niobate piezoelectric ceramic composition with a favorable piezoelectric property. This invention refers to a piezoelectric ceramic composition 10 that is described as composition formula {lix(k1-ynay)1-x}(nb1-zsbz)o3 including the additives of the metallic elements bi and fe within the range of the following relational expressions: 0.03≦x≦0.045; 0.5≦y≦0.58; 0.03≦z≦0.045; and 0.006≦v≦w≦0.010 whereof v is the additive amount of bi (molar ratio), and w is the additive amount of fe (molar ratio)..
Honda Electronics Co., Ltd.
04/09/15
20150098594

Speaker


A plurality of magnetostrictive elements made of ferrite or the like are arranged in a matrix on an upper surface of a circuit board. On the periphery of each of the magnetostrictive elements, a voice coil is arranged.
Nec Casio Mobile Communications, Ltd.
04/09/15
20150098593

Sound receiver and manufacturing the same


A sound receiver includes a casing, a circuit portion, a conductive member, a first piezoelectric plate, a second piezoelectric plate, a first conductive transmission portion, and a second conductive transmission portion. The casing has an accommodating portion.
04/09/15
20150098028

Printing apparatus, ink jet head, and printing method


There is provided a printing apparatus which performs printing by an ink jet method, including: an ink jet head which ejects ink droplets; and a driving signal output portion which outputs a driving signal that causes the ink droplets to be ejected from the ink jet head. The ink jet head includes: a nozzle which ejects the ink droplets; an ink chamber which stores ink to be ejected from the nozzle; and a piezoelectric element which causes the ink droplets to be ejected from the nozzle.
Mimaki Engineering Co., Ltd.
04/09/15
20150097898

Piezoelectric element, liquid droplet discharging head, liquid droplet discharging device, image forming apparatus, and manufacturing piezoelectric element


A piezoelectric element includes a vibration plate; a lower electrode; a piezoelectric film; and an upper electrode, which are laminated in the stated order. An electric field is applied to the piezoelectric film by the lower electrode and the upper electrode.
04/09/15
20150097897

Multi-layer electroformed nozzle plate with attenuation pockets


An ink jet printhead includes a nozzle plate including a nozzle, a recess in the nozzle plate, and a compliant layer that covers the recess and forms a sealed pocket that may be filled with air or another gas during use of the printhead. During actuation of a piezoelectric element during the ejection of ink from the nozzle, the sealed pocket attenuates an acoustic energy generated by the piezoelectric element, thereby reducing crosstalk to adjacent nozzles by the acoustic energy..
Xerox Corporation
04/09/15
20150097885

Printing apparatus and controlling printing apparatus


A printing apparatus includes a driving signal generation unit that generates a driving signal; a piezoelectric element that displaces according to the signal; a cavity whose inside is filled with an ink and in which a pressure in the inside is increased or decreased due to the displacement of the piezoelectric element based on the signal; an ejection unit that includes a nozzle communicating with the cavity and capable of ejecting the ink filled in the inside of the cavity by the increase or the decrease of the pressure in the inside of the cavity; a residual vibration detection unit that detects a change of an electromotive force based on the change of the pressure in the inside of the cavity; and an ejection state determination unit that determines an ejection state of the ink in the ejection unit based on the detection result of the residual vibration detection unit.. .
Seiko Epson Corporation
04/09/15
20150097635

Piezoelectric multiplexer


A piezoelectric multiplexer includes an actuator and multiple piezo-morph beams. The actuator includes an actuator conducting head and an actuator stem, and each piezo-morph beam includes a conducting beam contact head and a beam stem manufactured out of piezo-morph material.
19th Space Electronics
04/09/15
20150097515

Self-powered irrigation apparatus


An irrigation apparatus is provided, comprising: a pressure vessel configured to hold water under pressure, and configured to expand and contract based on the pressure of the held water; a selectable throttle configured to receive water at a first pressure, configured to provide the water to the pressure vessel at the first pressure when the selectable throttle is at a first setting, and configured to provide the water to the pressure vessel at a second pressure that is smaller than the first pressure when the selectable throttle is at a second setting; a control circuit configured to control whether the selectable throttle is at the first setting or at the second setting; and a piezoelectric element attached to the pressure vessel and configured to generate electricity when the pressure vessel expands or contracts.. .
Signature Control Systems, Inc.
04/09/15
20150097468

Piezoelectric ultrasonic transducer array with switched operational modes


Switchable micromachined transducer arrays are described where one or more switches, or relays, are monolithically integrated with transducer elements in a piezoelectric micromachined transducer array (pmut). In embodiments, a mems switch is implemented on the same substrate as the transducer array for switching operational modes of the transducer array.
04/09/15
20150097467

Strain amplification structure and synthetic jet actuator


A strain amplification structure has a frame with a hexagonal structure incorporating a plurality of rigid beams that are connected to opposing end beams by a plurality of flexible joints. A piezoceramic actuator assembly is connected to the opposing end beams having a collar including an opening.
The Boeing Company
04/09/15
20150097306

Valve device for controlled introduction of a blowing medium


A valve device for controlled introduction of a blowing medium into plastic parisons, includes at least one controllable valve body, at least one actuating device, and a control device for controlling the actuating device. The actuating device is at least indirectly operatively connected to the valve body, and includes at least one piezoelectric actuator, wherein by actuation of the actuating device and control of the piezoelectric actuator, which is associated therewith, by the control device in dependence on the current impressed into the piezoelectric actuator and/or the voltage applied thereto, the valve body can be moved from an open position into a closed position and vice versa, and in the closed position a main flow path for introduction of the blowing medium into the plastic parisons is closed..
Krones Ag
04/09/15
20150097129

Proportional valve controlled with a piezoelectric linear actuator


The present invention relates to valves and/or fluid pumps and in particular to such valves and/or fluid pumps controlled with gating and/or control module comprising a piezoelectric linear actuator to provide gating of the valve and/or pump system.. .
Ipu Industries Ltd.
04/09/15
20150097047

Method for controlling and managing smart atomizer


A method for controlling and managing a smart atomizer involves automatically frequency tracing to rapidly optimize an operating frequency of a piezoelectric element of a spray nozzle when the spray nozzle is assembled to a main machine of the smart atomizer. The main machine performs spray-dosage setting, so that each spray session can operate according a preset spray dosage, so as to provide consistent spray of liquid easily.
04/09/15
20150096878

Touch-sensitive sensor and producing such a sensor


This touch-sensitive sensor includes a layer of piezoelectric material interposed between, on the one hand, first and second electrically-conductive elements and, on the other hand, at least one third conductive element including a surface opposite at least one of the first and second conductors.. .
Commissariat A L'energie Atomique Aux Energies Alternatives
04/09/15
20150096539

Method for controlling at least one piezoelectric actuator of a fuel injector of an internal combustion engine


The method applied from an on-board engine control unit during operation, and including applying to the actuator between these 2 steps at least one second electric charge to polarize the actuator during an opening phase of the injector and during fuel injection.. .
04/09/15
20150096385

Method of, and , measuring the physical properties of two-phase fluids


There is provided a method of measuring the physical properties of a two-phase fluid using at least one piezoelectric oscillator immersed in the two-phase fluid, the two-phase fluid comprising a gas fraction and a liquid fraction, the method comprising: a) measuring the resonant frequency of the or each piezoelectric oscillator as a function of time; and b) determining, from the or each resonant frequency, at least one physical property of the two-phase fluid to characterise the two-phase fluid.. .
Air Products And Chemicals, Inc.
04/09/15
20150096380

Visualization of tests on swing type check valves using phased array sequence scanning


A computer with a proper program generates a phased array sequence of signals. In a pulser with delays, the signals are fed through a multiplexor into multiple water wedges that are attached to a valve being tested.
Ihi Southwest Technologies,inc.


Popular terms: [SEARCH]

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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This listing is a sample listing of patent applications related to Piezo for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Piezo with additional patents listed. Browse our RSS directory or Search for other possible listings.
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