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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


Semiconductor light emitting device

Nichia

Semiconductor light emitting device

Actuator

Canon

Actuator

Actuator

Seiko Epson

Piezoelectric element, liquid ejecting head, liquid ejecting apparatus and piezoelectric device

Date/App# patent app List of recent Piezo-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
20150055786
 Apparatus and  silent monitoring alarm sounders patent thumbnailnew patent Apparatus and silent monitoring alarm sounders
An alarm sounder, which incorporates a piezo-electric output transducer, can be silently monitored using a variable frequency square wave. An initial frequency, close to the upper limit of human hearing, is coupled to the sounder.
Honeywell International 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
new 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
20150053244
new patent

Nozzle, and substrate processing apparatus


A nozzle for discharging droplets of a processing liquid for processing a substrate has a main body including a supply port, a drain port, a processing liquid flow passageway connecting the supply port and the drain port, and a plurality of discharge ports from which the processing liquid is discharged. The processing liquid flow passageway includes a plurality of branch flow channels, which branch out between the supply port and the drain port and collect together between the supply port and the drain port.
Screen Holdings Co., Ltd.
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
20150052643

Compositions and methods for insecticidal control of stinkbugs


Methods and compositions are provided which employ a silencing element that, when ingested by a pest, such as a pentatomidae plant pest or a n. Viridula, acrosternum hilare, piezodorus guildini, and/or halymorpha halys plant pest, decrease the expression of a target sequence in the pest.
E I Du Pont De Nemours And Company
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
20150049899

Apparatus and sound reproduction


In an embodiment an apparatus includes a graphical display panel and a loudspeaker. The panel has a display layer for displaying images and defines a plurality of apertures penetrating through at least the display layer.
Nokia 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
20150049330

Photosensitive tactile sensor


A tactile sensor including a piezoresistive layer having its electric resistance varying according to mechanical stress exerted thereon, the piezoresistive layer being at least partially transparent to light; a photosensitive layer, having its electric resistance varying according to the quantity of incident light thereon, the photosensitive layer being arranged opposite the piezoresistive layer; and electric connection elements electrically connecting in parallel the piezoresistive layer and the photosensitive layer.. .
Commissariat A L'energie Atomique Et Aux Energies Alternatives
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).


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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