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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


Control device using buttons and control method thereof

Samsung Electronics

Control device using buttons and control method thereof

Piezoelectric device, liquid ejecting apparatus, and method of driving piezoelectric device and liquid ejecting head

Seiko Epson

Piezoelectric device, liquid ejecting apparatus, and method of driving piezoelectric device and liquid ejecting head

Piezoelectric device, liquid ejecting apparatus, and method of driving piezoelectric device and liquid ejecting head

Multi-layered thin film piezoelectric devices & methods of making the same

Date/App# patent app List of recent Piezoelectric-related patents
02/26/15
20150057540
 Piezoelectric device, ultrasound probe, droplet discharge device, and piezoelectric device fabrication method patent thumbnailnew patent Piezoelectric device, ultrasound probe, droplet discharge device, and piezoelectric device fabrication method
In a piezoelectric device, an ultrasound probe, and a droplet discharge unit of the present invention, each of a pair of first and second electrodes is placed on a piezoelectric member having a single orientation in a direction perpendicular to a thickness direction thereof to extend in a direction perpendicular to the thickness direction or along the thickness direction and in a direction perpendicular to the direction of the orientation. Therefore, the piezoelectric device of the present invention has excellent piezoelectric properties.
Konica Minolta, Inc.
02/26/15
20150055404
 Magnetic memory device and  magnetic domain wall motion patent thumbnailnew patent Magnetic memory device and magnetic domain wall motion
A magnetic memory device comprises a first electrode, a second electrode, a laminated structure comprising plural first magnetic layers being provided between the first electrode and the second electrode, a second magnetic layer comprising different composition elements from that of the first magnetic layer and being provided between plural first magnetic layers, a piezoelectric body provided on a opposite side to a side where the first electrode is provided in the laminated structure, and a third electrode applying voltage to the piezoelectric body and provided on a different position from a position where the first electrode is provided in the piezoelectric body.. .
Kabushiki Kaisha Toshiba
02/26/15
20150055270
 Hybrid relay patent thumbnailnew patent Hybrid relay
A relay (1) includes a motor (20) and a primary electrical switch assembly (132). Primary electrical switching attachment points (113) are switched by a moveable switching link (101) which is moved in and out of the switch on an switched off position axially by the motor (20) in response to electrical signals delivered to the coil (26) via the flexible leads (32, 33).
Zonit Structured Solutions, Llc
02/26/15
20150054888
 Piezoelectric element, liquid ejecting head, liquid ejecting apparatus and piezoelectric device patent thumbnailnew patent Piezoelectric element, liquid ejecting head, liquid ejecting apparatus and piezoelectric device
Provided is a piezoelectric element that has a first electrode, a piezoelectric layer provided on the first electrode, and a second electrode provided on the piezoelectric layer, an average grain size of crystal grains aligned in a planar direction within 15° from a (100) plane is less than the average grain size of the crystal grains facing a planar direction inclined by more than 15° from the (100) plane, in a case in which the crystal orientation of the piezoelectric layer is analyzed using an electron beam backscatter diffraction method (ebsd).. .
Seiko Epson Corporation
02/26/15
20150054887
 Liquid ejecting head and liquid ejecting apparatus patent thumbnailnew patent Liquid ejecting head and liquid ejecting apparatus
A liquid ejecting head includes a head chip that ejects ink from a liquid ejecting surface. An inlet is disposed on the side opposite to the liquid ejecting surface.
Seiko Epson Corporation
02/26/15
20150054879
 Inkjet print head health detection patent thumbnailnew patent Inkjet print head health detection
A method and apparatus for self-sensing the detection of print head conditions on high resolution/multiple nozzle piezoelectric ink jet print heads resulting in increased ink jet efficiency and reduced ejection failure with no use of ink. This is done by creating a pressure wave in an ink-fillable ink jet head ejection chamber where the intensity of the induced pressure wave is below a threshold value necessary to produce ejection of a normal sized ink drop through the nozzle.
Palo Alto Research Center Incorporated
02/26/15
20150054876
 Liquid discharging apparatus patent thumbnailnew patent Liquid discharging apparatus
An ink jet printer is provided with a piezoelectric element which is provided corresponding to a pressure chamber in order to discharge liquid droplets, a driving signal generating section which generates a driving signal, a residual vibration detecting section which detects changes in an electromotive force of the piezoelectric element in accordance with the residual vibration inside the pressure chamber which occur after the driving signal is applied, a first switch which switches whether or not a driving signal is applied to the piezoelectric element, and a second switch which switches whether or not a change in the electromotive force is supplied to a first high-pass filter, where the second switch and the residual vibration detecting section are connected via a first capacitor of the first high-pass filter.. .
Seiko Epson Corporation
02/26/15
20150054870
 Piezoelectric device, liquid ejecting apparatus, and  driving piezoelectric device and liquid ejecting head patent thumbnailnew patent Piezoelectric device, liquid ejecting apparatus, and driving piezoelectric device and liquid ejecting head
A piezoelectric device comprises a piezoelectric element including a piezoelectric layer formed of a complex oxide having a perovskite structure including bismuth, iron, barium, and titanium, and a pair of electrodes placing the piezoelectric layer therebetween. The piezoelectric element is driven with a first drive mode and a second drive mode.
Seiko Epson Corporation
02/26/15
20150054868
 Liquid discharging apparatus, control method thereof, and program patent thumbnailnew patent Liquid discharging apparatus, control method thereof, and program
There is provided a liquid discharging apparatus including: an original drive signal generation unit which generates an original drive signal; a signal modulation unit which modulates the original drive signal to generate a modulation signal; a first signal amplifying unit which amplifies the modulation signal to generate a first amplified modulation signal; a second signal amplifying unit which amplifies the modulation signal to generate a second amplified modulation signal; an amplification control unit which controls operations of the first signal amplifying unit and the second signal amplifying unit; a signal conversion unit which converts the first amplified modulation signal and the second amplified modulation signal into a drive signal; a plurality of piezoelectric elements which is deformed by the drive signal; a plurality of cavities which expands or contracts in accordance with the deformation of the plurality of piezoelectric elements; a plurality of nozzles which communicates with each of cavities.. .
Seiko Epson Corporation
02/26/15
20150054779
 Electronic apparatus and panel unit patent thumbnailnew patent Electronic apparatus and panel unit
Frequency characteristics of an air conduction sound and a human body vibration sound are adjusted. An electronic apparatus 1 according to the present invention includes a panel 10, a piezoelectric element 30, a housing 60 for mounting the panel 10, and a member 80 attached to the piezoelectric element 30, wherein the member 80 and the panel 10 deform due to deformation of the piezoelectric element 30 and thus deliver the air conduction sound and the human body vibration sound to an object in contact with the panel 10 that is deforming, and the member 80 adjusts the frequency characteristics of the air conduction sound and the human body vibration sound..
Kyocera Corporation
02/26/15
20150054637
new patent

Warning alarm apparatus and steering wheel


A warning alarm apparatus for a steering wheel includes at least one piezoelectric transducer provided in the rim of the steering wheel; a current supplier; one or more sensors, equipped in the steering wheel or a motor vehicle, sense a dangerous factor; and a controller that determines whether a sensor value sensed by the sensor is included in a warning alarm range, and controls operation of the current supplier according to the sensor value.. .
Soongsil University Research Consortium Techno-park
02/26/15
20150054520
new patent

Micropositioning device with multidegrees of freedom for piezoelectric actuators and associated method


A micropositioning device for a piezoelectric actuator includes a means for controlling an electric field applied to the piezoelectric actuator so as to deform the piezoelectric material, and means for simultaneous measurement of a variation of electric charge accumulated on the piezoelectric actuator resulting from the deformation; and means for acquiring measurements of the variation of electric charge, for processing these acquisitions and for estimating a displacement (x, y, z) of the piezoelectric actuator and/or an applied force.. .
Ecole Nationale Superieure De Mecanique Et Des Microtechniques
02/26/15
20150054387
new patent

Multi-layered thin film piezoelectric devices & methods of making the same


Multi-layered thin film piezoelectric material stacks and devices incorporating such stacks. In embodiments, an intervening material layer is disposed between two successive piezoelectric material layers in at least a portion of the area of a substrate over which the multi-layered piezoelectric material stack is disposed.
02/26/15
20150054386
new patent

Resonating element, resonator, electronic device, electronic apparatus, and mobile object


A piezoelectric resonating element includes a piezoelectric substrate that includes a rectangular vibrating section and a thick section integrally formed with the vibrating section, excitation electrodes, and lead electrodes. The thick section includes a first thick section and a second thick section of which one end is formed continuous to the first thick section.
Seiko Epson Corporation
02/26/15
20150054384
new patent

Actuator


The actuator includes a vibration plate including a fixing portion for fixing the vibration plate to a holding member, and a connection portion for connecting a center portion and the fixing portion, and is provided between a surface and a friction-sliding surface in a direction in which the vibration plate is pressed against the rotor by a pressurizing force produced by a pressure member. When finishing a surface on which a piezoelectric device is to be fixed to the vibration plate to a uniform surface by polishing, a decrease in the performance of the ultrasonic motor due to deformation of the vibration plate that is caused by warping of support portions that extend from both ends thereof or by burrs or the like can be prevented, and the time required to polish the vibration plate can be reduced..
Canon Kabushiki Kaisha
02/26/15
20150054383
new patent

Control device using buttons and control method thereof


A control device includes a piezoelectric element; a plurality of buttons that are placed in a position corresponding to the piezoelectric element and are configured to apply different pressures, relative to each other, to the piezoelectric element; a controller configured to, if an electric signal of a size corresponding to the pressure is output from the piezoelectric element, determine which button of the plurality of buttons is selected depending on the size of the electric signal; and an output unit configured to output a control signal corresponding to the selected button.. .
Samsung Electronics Co., Ltd.
02/26/15
20150054382
new patent

Piezoelectric vibration component and portable terminal


A piezoelectric vibration component and a portable terminal each include a piezoelectric vibration element 14 and a power supply line 51. The piezoelectric vibration element 14 includes at least: a layered structure 20 in which a plurality of internal electrodes and piezoelectric layers are layered in a first direction; and surface electrodes 33 and 31 electrically connected to the internal electrodes.
Kyocera Corporation
02/26/15
20150054381
new patent

Vibration module based on piezoelectric device


A vibration module based on a piezoelectric device includes: a piezoelectric device; a vibration plate connected to one side of the piezoelectric device by a medium of an adhesive and an intermediate material; the intermediate material interposed between the piezoelectric device and the vibration plate; and a molding part formed on the side of the piezoelectric device where the intermediate material is not formed.. .
Wisol Co., Ltd.
02/26/15
20150054083
new patent

Strain engineering in semiconductor devices by using a piezoelectric material


An efficient strain-inducing mechanism may be provided on the basis of a piezoelectric material so that performance of different transistor types may be enhanced by applying a single concept. For example, a piezoelectric material may be provided below the active region of different transistor types and may be appropriately connected to a voltage source so as to obtain a desired type of strain..
Globalfoundries Inc.
02/26/15
20150053917
new patent

Semiconductor light emitting device


A semiconductor light emitting device is provided which has improved light emission efficiency. The semiconductor light emitting device includes an active layer having a quantum well structure.
Nichia Corporation
02/26/15
20150053885
new patent

Piezoelectric ceramic, manufacturing piezoelectric ceramic, piezoelectric element, and electronic device


The amount b (mol) of mn per mole of the metal oxide is in the range of 0.0048≦b≦0.0400, the second auxiliary component content on a metal basis is 0.001 parts by weight or more and 4.000 parts by weight or less per 100 parts by weight of the metal oxide, and the value a of the general formula (1) is in the range of 0.9925+b≦a≦1.0025+b.. .
02/26/15
20150053884
new patent

Piezoelectric material, piezoelectric element, and electronic apparatus


As a main component. The metal oxide contains mn in a content of 0.12 parts by weight or more and 0.40 parts by weight or less based on 100 parts by weight of the metal oxide on a metal basis..
02/26/15
20150052981
new patent

Apparatus and measuring the viscosity of a fluid using ultrasonic waves


A method for measuring an ultrasonic viscosity includes applying a driving voltage to a plurality of first piezoelectric transducers provided along an outer wall circumference of a pipe at constant intervals to generate a torsional wave on a surface of the pipe, receiving the torsional wave propagated along the surface of the pipe through a plurality of second piezoelectric transducers provided along the outer wall circumference of the pipe at constant intervals while being spaced from the first piezoelectric transducers at a certain distance in a longitudinal direction of the pipe to convert the torsional wave into a voltage signal, calculating an attenuation and a propagation velocity of the torsional wave based on the time for the propagation of the torsional wave and the converted voltage signal, and measuring viscosity of the fluid in the pipe based on the calculated attenuation and propagation velocity of the torsional wave.. .
Soongsil University Research Consortium Techno-park
02/26/15
20150052752
new patent

Method for manufacturing liquid ejecting head


Provided is a method for manufacturing a recording head having a head chip that ejects ink, an upstream flow path member, a downstream flow path member where an accommodating portion and a downstream flow path are disposed, a wiring member that is connected to a piezoelectric actuator in the head chip, a wiring substrate, a first insertion hole into which the wiring member and a tool are inserted, and a second insertion hole where a wiring member insertion portion into which the wiring member is inserted and a tool insertion portion into which the tool can be inserted are integrally formed, the method including inserting the tool into the tool insertion portion, holding the wiring member with the tool, withdrawing the tool from the tool insertion portion by moving the downstream flow path member to the head chip side, and inserting the wiring member into the wiring member insertion portion.. .
Seiko Epson Corporation
02/26/15
20150052715
new patent

Methods of manufacturing piezoelectric element, liquid ejecting head, and ultrasonic transducer


A method of manufacturing a piezoelectric element includes a first electrode, a piezoelectric layer, and a second electrode, in which unevenness on one surface of the piezoelectric layer is formed by forming an oxidizable metal layer on the one surface of the piezoelectric layer; aggregating the metal layer by thermal oxidation; and performing isotropic etching on the metal layer aggregated on the one surface of the piezoelectric layer.. .
Seiko Epson Corporation
02/19/15
20150051493

Acoustic probe and manufacturing the same


Provided are an acoustic probe and a method of manufacturing the acoustic probe including a chip module substrate, a piezoelectric unit for cross-converting ultrasound and an electric signal while the piezoelectric unit is vibrating, and a connection unit for supporting the piezoelectric unit and electrically connecting the piezoelectric unit and the chip module substrate.. .
Samsung Medison Co., Ltd.
02/19/15
20150051009

Signal analysis and recharging system


A measurement device may include one or more piezoelectric elements that output power signals. The device may split each power signal, analyzing a first portion of the signal while supplying a second portion to an energy storage assembly.
Golf Impact, Llc
02/19/15
20150050877

Ventilation system


A ventilation system 1 includes: a housing 2 having at least one pair of ventilation holes 21; and a piezoelectric blower 3 attached to at least one of the pair of ventilation holes 21. The piezoelectric blower 3 is operative to vibrate a diaphragm by a piezoelectric element so as to produce air circulation through the ventilation holes 21.
Nitto Denko Corporation
02/19/15
20150049587

Full-duplex ultrasonic through-wall communication and power delivery system with frequency tracking


A method and apparatus provide simultaneous bi-directional communications through a barrier using a pair of piezoelectric transducers. Outside-to-inside transmission of differentially encoded binary data is only sampled at the inside when a known repeated bit in a barker sequence is transmitted in the other direction.
Rensselaer Polytechnic Institute
02/19/15
20150048723

Piezoelectric vibration element and vibration element package having the same


A piezoelectric vibration element and a vibration element package having the same are disclosed. The piezoelectric vibration element and the vibration element package having the same in accordance with the present invention includes: a vibrating piece having a first mesa portion and a second mesa portion, which are vibrated by electric signals, formed on one surface and the other surface thereof, respectively; a first excitation electrode formed on the first mesa portion and configured to transfer the electric signals to the first mesa portion; a second excitation electrode formed on the second mesa portion and configured to transfer the electric signals to the second mesa portion; a first post formed on the one surface of the vibrating piece in such a way that one end thereof connected with a lateral surface of the first mesa portion has a same height as that of the first mesa portion; a first connection electrode formed on the first post so that the electric signals supplied from outside are received and transferred to the first excitation electrode; and a second connection electrode formed on the vibrating piece so that the electric signals supplied from outside are received and transferred to the second excitation electrode..
Samsung Electro-mechanics Co., Ltd.
02/19/15
20150048721

Piezoelectric actuator and manufacturing piezoelectric actuator


A piezoelectric actuator includes one piezoelectric layer, a common electrode disposed on the lower surface of the piezoelectric layer and individual electrodes disposed on the upper surface of the piezoelectric layer. In the piezoelectric layer, a plurality of metal patterns arranged at regular intervals in the conveyance direction and in a direction orthogonal to the conveyance direction and overlapping with pressure chambers are provided substantially at the central part in the direction of the thickness.
Brother Kogyo Kabushiki Kaisha
02/19/15
20150048720

Piezoelectric actuator module and manufacturing the same


Disclosed herein are a piezoelectric actuator module and a method of manufacturing the same. The piezoelectric actuator module includes: a plate; a piezoelectric element disposed on the plate and having a through-hole formed therein; and a feeding wire inserted into the through-hole to apply an external voltage to the piezoelectric element..
Samsung Electro-mechanics Co., Ltd.
02/19/15
20150048719

Inertial drive actuator


The task of the present invention is to provide an inertial drive actuator having a small-size arrangement, without using a vibration substrate. The inertial drive actuator includes a coil, a movable body which is disposed in a direction in which, a magnetic flux of the coil is generated, and which is formed of a magnetic material having a surface facing the coil, and a displacement generator (piezoelectric element) which displaces the coil in a direction different from the direction in which the magnetic flux is generated.
Olympus Corporation
02/19/15
20150048717

Piezoelectric glass ceramic compositions and piezoelectric devices made therefrom


Wherein m1 is one or more metals and/or metalloids, m2 is one or more metals and/or metalloids, x is a value equal to the valence of m1, and y is a value equal to the valence of m2. The piezoelectric glass ceramic has a total alkali metal concentration of less than about 1000 parts per million by weight (ppmw).
02/19/15
20150047804

Piezoelectric cooling system


The present disclosure provides a piezoelectric system for controlling the temperature of a fluid. The system includes a body having a first portion and a second portion.
Deere & Company
02/12/15
20150045806

Phacoemulsification ultrasonic device switching between different operational modes


A surgical instrument and method, for example to accomplish phacoemulsification, are disclosed. The surgical instrument includes a handpiece that includes a piezoelectric transducer.
02/12/15
20150045671

Ultrasound probe


An ultrasound probe includes a laminated body having: a piezoelectric body having a thickness in a first direction; a first electrode and a second electrode that face each other so as to sandwich the piezoelectric body in the first direction; an intermediate layer that is electrically connected with the second electrode and that is provided on an opposite side to the piezoelectric body with respect to the second electrode; and a third electrode that extends in a second direction that is orthogonal to the first direction. A plurality of the first electrodes and second electrodes are arranged at predetermined intervals in the second direction.
Konica Minolta, Inc.
02/12/15
20150045669

Passive data transmission


Data is communicated from an implanted section to an external location. The implanted section includes a transducer such as a piezoelectric element with an ultrasound reflecting surface that moves in response to an applied driving signal.
02/12/15
20150043858

Bearing operating a bearing system


A bearing system for supporting components that are movable relative to one another includes at least one bearing and a preload mechanism for changing a preload of the at least one bearing based on an operating state of the bearing system, where the preload mechanism includes, for example, a piezoelectric element, a peltier element, an expansion material or a micromechanical element.. .
Aktiebolaget Skf
02/12/15
20150043758

Electronic device, control method, and control program


According to an aspect, an electronic device includes: a piezoelectric element; a first sound generating unit that is vibrated by the piezoelectric element and generates a vibration sound transmitted by vibrating a part of a human body; and a second sound generating unit that generates an air conduction sound.. .
Kyocera Corporation
02/12/15
20150043750

Electronic device and controlling electronic device


An echo caused by sound leakage from a housing that vibrates due to a vibrating body is reduced. An electronic device (1) according to the present invention includes a piezoelectric element (30), a vibrating plate (10) that vibrates due to the piezoelectric element (30), microphones (42, 43), and an equalizer (44), the electronic device (1) causing the vibrating plate (10) to generate air-conducted sound and vibration sound that is transmitted by vibrating a part of a human body.
Kyocera Corporation
02/12/15
20150043748

Electronic device, control method, and control program


According to an aspect, an electronic device includes: a piezoelectric element; a sound generating unit that is vibrated by the piezoelectric element and generates a vibration sound to be transmitted while vibrating part of a human body; and a detection unit that detects contact of the part of the human body with the sound generating unit. A volume of the vibration sound is changed corresponding to a detection result of the detection unit..
Kyocera Corporation
02/12/15
20150042728

Actuator, liquid ejecting head, and liquid ejecting apparatus


An actuator includes a vibration plate, a first conductive layer formed on an upper surface of the vibration plate and extending in a predetermined direction, a piezoelectric layer covering the first conductive layer, a second conductive layer formed on an upper surface of the piezoelectric layer, a metal layer formed on the upper surface of the vibration plate and on an upper surface of the second conductive layer, and an electrode electrically connected to the metal layer. The first conductive layer, the second conductive layer, and the piezoelectric layer interposed between the first and second conductive layers form a driving unit.
Seiko Epson Corporation
02/12/15
20150042727

Liquid ejecting head and liquid ejecting apparatus


In a liquid ejecting head, a vibration plate includes an effective displacement portion provided for each pressure chamber and an island-shaped part which is provided in the effective displacement portion at a position on the opposite side to the pressure chamber and to which one end portion of a piezoelectric vibrator is bonded; the piezoelectric vibrator has a laminate structure in which electrodes and piezoelectric material are alternately laminated; a layer at an end of one side of the piezoelectric vibrator in the laminating direction is formed of an external electrode, while a layer at an end of the other side thereof in the same direction is formed of a piezoelectric material; and the piezoelectric vibrator is disposed so as to be shifted toward the other side in the laminating direction with respect to the effective displacement portion.. .
Seiko Epson Corporation
02/12/15
20150042611

Touch electronic device


A touch electronic device includes a touch panel and a tactile identifying film including a plurality of tactile identifying patterns. At least an opening is formed in each of the tactile identifying patterns for exposing a portion of a touch surface of the touch panel.
National Taiwan University
02/12/15
20150042590

Operation input device and information display device


An operation input device has a housing including a concave portion in which an information display device is accommodated. A piezoelectric element of a flat film shape and a control ic connected to the piezoelectric element are built in a base portion of the housing.
Murata Manufacturing Co., Ltd.
02/12/15
20150042418

Switchable filters and design structures


Switchable and/or tunable filters, methods of manufacture and design structures are disclosed herein. The method of forming the filters includes forming at least one piezoelectric filter structure comprising a plurality of electrodes formed on a piezoelectric substrate.
International Business Machines Corporation
02/12/15
20150042211

System and generating electricity by an inflated moving wheel


A system and method for generating electricity by an inflated moving wheel for transportation devices is disclosed. In accordance with embodiments of the present disclosure, an electricity generating wheel may include an flexible inflated tire, a wheel rim, a central shaft, an electricity generator is installed inside of the inflated tire; the electricity generator may include an outer ring and an inner ring and multiple springs; the inner ring and outer ring may comprise multiple piezoelectricity generators (or other types of electricity generators), the springs connect the outer ring and the inner ring electricity generators and keep the outer ring in contact with the inner surface of the inflated tire.
02/12/15
20150042210

Electromechanical transformation device and manufacturing the same


An electromechanical transformation device comprises an alkaline niobate piezoelectric ceramic composition and a rigid body adhered onto the major surface of the piezoelectric ceramic composition. The piezoelectric ceramic composition is made of crystal structures such as orthorhombic crystals formed at the side where the temperature is lower than the orthorhombic-to-tetragonal phase transition temperature, tetragonal crystals formed at the side where the temperature is higher than the orthorhombic-to-tetragonal phase transition temperature as well as at the side where the temperature is lower than the tetragonal-to-cubic phase transition temperature, and the cubic crystals formed at the side where the temperature is higher than the tetragonal-to-cubic phase transition temperature.
Honda Electronics Co., Ltd.
02/12/15
20150042209

Ultrasonic actuator


The invention relates to an ultrasonic actuator (2) with a polarization axis p, said actuator being made of a piezoelectric ceramic. The ultrasonic actuator (2) has a temperature expansion coefficient which is parallel to the polarization axis p and which differs from a temperature expansion coefficient that is perpendicular to the polarization axis p, and at least one friction element (8) is arranged on the ultrasonic actuator.
Physik Instrumente Gmbh & Co. Kg
02/12/15
20150042207

Composite substrate and elastic wave device


A composite substrate 10 is a substrate formed by bonding a piezoelectric substrate 12 and a support substrate 14 having a coefficient of thermal expansion lower than that of the piezoelectric substrate 12. The support substrate 14 has a first surface 14a bonded to the piezoelectric substrate 12 and a second surface 14b opposite to the first surface 14a.
Ngk Insulators, Ltd.
02/12/15
20150041701

Piezoelectric material, piezoelectric element, and electronic apparatus


(ba1-xcax)a(ti1-yzry)o3 . .
02/12/15
20150041104

Systems and methods for robust and modular synthetic jet cooling


A modular synthetic cooling jet apparatus for cooling at least one electronic component and including a first synthetic cooling jet is provided. The first synthetic cooling jet includes a first piezoelectric element, and a first pair of plates coupled to the first piezoelectric element.
General Electric Company
02/12/15
20150040703

Serially-connected ball screw pair and piezoelectric actuator macro-micro driving and guiding device


A serially-connected ball screw pair and piezoelectric actuator macro-micro driving and guiding device includes, from the bottom to the top, a sliding seat (1), a ball screw pair, a sliding table guide rail pairs, a nut seat (6), a piezoelectric actuator (7), a micro-moving table, a nut seat guide rail pairs and a sliding table (1). The axis of a ball screw is symmetric with respect to two sliding table rail pairs, a nut (3) of the ball screw pair is fixedly mounted into the nut seat (6), one end of the piezoelectric actuator (7) is fixedly connected with the nut seat (6) and the other end thereof is fixedly connected with the micro-moving table (8), the axis of the piezoelectric actuator is symmetric relative to two sliding table rail pairs, an upper surface of the micro-moving table is fixedly mounted to a lower surface of the sliding table, and two nut rail pairs are symmetric relative to the axis of the ball screw.
Xi'an Univerisity Of Technology
02/12/15
20150040664

Vibrating element, vibrating device, electronic apparatus, and moving object


A vibrating element includes a base part, drive arms containing first surfaces and second surfaces having front-back relations with the first surfaces, having groove portions provided on the first surface sides, and extended from the base part in extension directions, and drive parts provided to contain piezoelectric layers on the second surfaces, and section shapes of the drive arms orthogonal to the extension directions contain asymmetric section shapes with respect to virtual center lines passing through centers of widths in directions orthogonal to the extension directions.. .
Seiko Epson Corporation
02/05/15
20150036864

Electronic device


An electronic device is provided with a housing, a piezoelectric element, and a panel, which is attached to the housing and has a contact area contacting a part of human body, configured to vibrate by the piezoelectric element to generate a vibration sound to be transmitted by vibrating the part of human body, such that pressure from inside of the housing at the contact area of the panel is smaller than pressure from inside of the housing at different area from the contact area. Thereby the sound pressure property is improved, and thus the electronic device preferably transmits air conduction sound and vibration sound..
Kyocera Corporation
02/05/15
20150036846

Sound generator, sound generation device, and electronic apparatus


Provided are a sound generator including a frame body, a vibration body provided to the frame body in a state where a tensile force is applied to the vibration body, and a piezoelectric vibration element provided to the vibration body. In the sound generator, when a first direction and a second direction are directions along a main surface of the vibration body and intersect with each other, the tensile force in the first direction and the tensile force in the second direction are different from each other.
Kyocera Corporation
02/05/15
20150036843

Electronic device


Provided is an electronic device 1, including: a piezoelectric element 30; a panel 10 configured to support the piezoelectric element 30; and a housing 60 configured to hold the panel 10 and conduct a vibration through the panel 10, the panel 10 generating air-conduction sound and vibration sound that is transmitted by vibrating a part of a human body. The housing 60 includes a first housing portion 62 and a second housing portion 61 located inward of the first housing portion 62, and rigidity-reinforcing portions (63, 150; 64, 160; 65, 66, 170) are disposed between the first housing portion 62 and the second housing portion 61 for improving rigidity of the housing 60..
Kyocera Corporation
02/05/15
20150036200

Piezoelectric element and producing the same


A piezoelectric element includes a substrate having a first surface with a predetermined orientation; a lower electrode layered on the first surface of the substrate; a piezoelectric thin film layered on the lower electrode and having a piezoelectric body; and an upper electrode layered on the piezoelectric thin film. A voltage is to be impressed between the lower electrode and the upper electrode to deform the piezoelectric thin film.
National University Corporation Toyohashi University Of Technology
02/05/15
20150035912

Ink-jet head


A piezoelectric actuator is provided, including a vibration plate, a piezoelectric layer, a plurality of individual electrodes arranged in two arrays, first and second common electrodes which have first and second facing portions facing parts of the individual electrodes and first and second connecting portions connecting the first and second facing portions respectively, and first and second wiring portions which are arranged on the vibration plate and which are connected to the first and second common electrodes respectively via first and second connecting wirings, wherein one of the first connecting wirings connects the first connecting portion and one of the first wiring portion while striding over the second connecting portion.. .
Brother Kogyo Kabushiki Kaisha
02/05/15
20150035911

Printing system, printing apparatuses, and methods of forming nozzles of printing apparatuses


A printing apparatus includes: a flow channel plate including, a pressure chamber, a nozzle including an outlet through which ink contained in the pressure chamber is ejected, and a trench disposed around the nozzle, and the outlet extending into the trench; a piezoelectric actuator configured to provide a change in pressure to eject the ink contained in the pressure chamber; and an electrostatic actuator configured to provide an electrostatic driving force to the ink contained in the nozzle.. .
Samsung Electronics Co., Ltd.
02/05/15
20150035908

Liquid jet head and liquid jet apparatus


The liquid jet head is provided with: a piezoelectric body substrate which includes a groove row in which ejection grooves penetrating the piezoelectric body substrate from an upper surface through a lower surface and non-ejection grooves open on the upper surface are alternately arranged in a reference direction, common drive electrodes formed on both side surfaces of each of the ejection grooves, and individual drive electrodes formed on both side surfaces of each of the non-ejection grooves; and a cover plate which is bonded to the upper surface of the piezoelectric body substrate and includes a liquid chamber communicating with the ejection grooves, first through electrodes which penetrate the cover plate in a thickness direction and are electrically connected to the individual drive electrodes, and individual terminals which are placed on a front surface opposite to the piezoelectric body substrate and electrically connected to the first through electrodes.. .
Sii Printek Inc.
02/05/15
20150035906

Piezoelectric actuator and liquid jetting apparatus


There is provided a piezoelectric actuator, including: first and second piezoelectric layers; a driving electrode arranged between the first and second piezoelectric layers; a second electrode maintained at a predetermined first electrical potential; and a third electrode maintained at a second electrical potential. A neutral plane of the piezoelectric actuator is positioned at a side opposite to the second piezoelectric layer relative to a center plane of the first piezoelectric layer in a direction of stacking of the first and second piezoelectric layers.
Brother Kogyo Kabushiki Kaisha
02/05/15
20150035883

Liquid ejecting apparatus, and control liquid ejecting apparatus


In a recording suspension period when a recording head is accelerated or decelerated in a non-recording region on a recording medium, or stops moving in the course of performing a printing process (printing job), a second driving signal is generated from a driving signal generation portion. Second vibration driving pulses of the second driving signal are applied to all piezoelectric elements, so that a vibration operation is performed without ejecting the liquid.
Seiko Epson Corporation
02/05/15
20150035414

Film-type piezoelectric/electrostrictive element


A1 denotes an exposed area of the internal electrode layer(s) exposed on an active portion of the electrode exposed surface. L1 denotes an average thickness of the internal electrode layer(s).
02/05/15
20150035413

Piezoelectric device and manufacturing piezoelectric device


A piezoelectric device includes a piezoelectric thin film formed by separating and forming a piezoelectric single crystal substrate, an inorganic layer formed on a back surface of the piezoelectric thin film, an elastic body layer disposed on a surface opposite to the piezoelectric thin film of the inorganic layer, and a support pasted to a surface opposite to the inorganic layer of the elastic body layer. In a membrane structure portion, the inorganic layer and the elastic body layer are disposed on the piezoelectric thin film through a gap layer.
Murata Manufacturing Co., Ltd.
02/05/15
20150035411

Pressing force sensor


A pressing force sensor that includes a flat membrane piezoelectric element and a support. The flat membrane piezoelectric element includes a piezoelectric sheet having a piezoelectric constant d14.
Murata Manufacturing Co., Ltd.
02/05/15
20150035410

Piezoelectric vibrating piece, fabricating the piezoelectric vibrating piece, piezoelectric device, and fabricating the piezoelectric device


A piezoelectric vibrating piece includes a vibrator, a framing portion that surrounds the vibrator, and a connecting portion that connects the vibrator and the framing portion together. At least one of a front surface and a back surface of the connecting portion is formed at a depth of 5 μm to 15 μm with respect to the framing portion..
Nihon Dempa Kogyo Co., Ltd.
02/05/15
20150035409

Piezoelectric transducer for an energy-harvesting system


A piezoelectric transducer for energy-harvesting systems includes a substrate, a piezoelectric cantilever element, a first magnetic element, and a second magnetic element, mobile with respect to the first magnetic element. The first magnetic element is coupled to the piezoelectric cantilever element.
Stmicroelectronics S.r.i.
02/05/15
20150035317

Fender bracket


A fender bracket includes a composite structure having a first flange to operatively connect to a fender, a second flange to operatively connect to a vehicle body structure, and a web connecting the first flange and the second flange. At least one actuator is positioned in at least a portion of the web.
Gm Global Technology Operations Llc


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

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