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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


Piezoelectric ceramics, piezoelectric element, liquid ejection head, ultrasonic motor, and dust removing device

Canon

Piezoelectric ceramics, piezoelectric element, liquid ejection head, ultrasonic motor, and dust removing device

Murata Manufacturing

Elastic wave filter device and manufacturing method of the same

Date/App# patent app List of recent Piezoelectric-related patents
01/29/15
20150030189
 Electronic device patent thumbnailnew patent Electronic device
The content of sound leakage from a vibrating plate that vibrates due to a piezoelectric element is made difficult to recognize. An electronic device (1) according to the present invention includes a piezoelectric element (30) and a vibrating plate (10) that vibrates due to the piezoelectric element (30), 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
01/29/15
20150030188
 Electronic device patent thumbnailnew patent Electronic device
Provided is an electronic device including: a piezoelectric element; a vibration plate to which the piezoelectric element is joined for vibration; and a housing to which the vibration plate is joined. Vibration sound, which is transmitted by vibrating a part of a human body, is generated by the vibration plate.
Kyocera Corporation
01/29/15
20150029271
 Liquid jet head, liquid jet apparatus and  manufacturing liquid jet head patent thumbnailnew patent Liquid jet head, liquid jet apparatus and manufacturing liquid jet head
A liquid jet head includes a piezoelectric body substrate having a plurality of groove arrays, in each of which ejection grooves penetrating from the upper surface to the lower surface are arrayed in a reference direction, drive electrode provided on side faces of the ejection grooves, and terminal electrodes provided on the lower surface, and electrically connected to the drive electrodes; and a flexible circuit board electrically connected from the terminal electrodes, and connected to the lower surface of the piezoelectric body substrate. The piezoelectric body substrate includes a first opening portion that penetrates from the upper surface to the lower surface between the plurality of groove arrays, and the flexible circuit board is led out from the lower surface to the upper surface of the piezoelectric body substrate through the first opening portion..
Sii Printek Inc.
01/29/15
20150029270
 Droplet discharging head and image forming apparatus patent thumbnailnew patent Droplet discharging head and image forming apparatus
A droplet discharging head includes: a nozzle substrate that includes a nozzle opening to discharge a droplet therethrough; a liquid chamber substrate that includes liquid pressure chambers communicating with the nozzle openings; a vibration plate arranged to face the nozzle substrate with the liquid chamber substrate interposed therebetween; piezoelectric elements that are provided to face the liquid pressure chambers with the vibration plate interposed therebetween and are arranged in a predetermined direction; a driving element provided, in a flip-chip implementation, on a flow path substrate that includes the nozzle substrate, the liquid chamber substrate, the vibration plate, and the piezoelectric elements; and a first reinforcing wire that is disposed to at least one of the flow path substrate and the driving element, has a band shape extending in a direction along a row of the piezoelectric elements, and is connected to a common electrode shared by the piezoelectric elements.. .
Ricoh Company, Ltd.
01/29/15
20150029269
 Liquid jet head,  liquid jet apparatus and  manufacturing liquid jet head patent thumbnailnew patent Liquid jet head, liquid jet apparatus and manufacturing liquid jet head
The liquid jet head is provided with a piezoelectric substrate having a plurality of groove rows in each of which elongated ejection grooves and elongated non-ejection grooves are alternately arranged in a reference direction. In adjacent ones of the groove rows, ends on a second side of ejection grooves included in a groove row located on a first side and ends on the first side of non-ejection grooves included in a groove row located on the second side are separated from each other, and overlap each other in a thickness direction of the piezoelectric substrate..
Sii Printek Inc.
01/29/15
20150028966
 Elastic wave filter device and manufacturing  the same patent thumbnailnew patent Elastic wave filter device and manufacturing the same
An elastic wave filter device includes a transmission elastic wave filter chip and a reception elastic wave filter chip. The transmission elastic wave filter chip includes an insulating support substrate, a piezoelectric layer directly or indirectly supported by the support substrate, and an idt electrode in contact with the piezoelectric layer.
Murata Manufacturing Co., Ltd.
01/29/15
20150028726
 Piezoelectric sheet, piezoelectric device including the same, and  fabricating piezoelectric device patent thumbnailnew patent Piezoelectric sheet, piezoelectric device including the same, and fabricating piezoelectric device
There is provided a piezoelectric device, including a laminated body in which a plurality of piezoelectric sheets including a first piezoelectric substance having a single crystal structure and a second piezoelectric substance having a polycrystalline structure are laminated, first and second internal electrodes interposed between the piezoelectric sheets and alternating so as to have different polarities in a laminated direction, and first and second external electrodes formed on one surface of the laminated body to be electrically connected to the first and second internal electrodes, wherein the first piezoelectric substance has an aspect ratio (d/l) of 1/8 to 1/4.. .
Samsung Electro-mechanics Co., Ltd.
01/29/15
20150028723
 Piezoelectric actuator patent thumbnailnew patent Piezoelectric actuator
A piezoelectric actuator comprises a substantially rectangular parallelepiped piezoelectric element. One outer surface of the piezoelectric element includes a first region, and a second region located such as to project from the first region and to overlap a region corresponding to an active portion in the one outer surface.
Tdk Corporation
01/29/15
20150028722
 Piezoelectric energy recovery system patent thumbnailnew patent Piezoelectric energy recovery system
An energy recovery system for converting mechanical vibration to electric energy is disclosed. The system includes a case providing a plurality of sidewalls, a battery received in the case with a part of the battery positioned on one of the sidewalls of the case, and a number of piezoelectric energy collectors.
Aac Technologies Pte. Ltd.
01/29/15
20150028249
 Piezoelectric ceramics, piezoelectric element, liquid ejection head, ultrasonic motor, and dust removing device patent thumbnailnew patent Piezoelectric ceramics, piezoelectric element, liquid ejection head, ultrasonic motor, and dust removing device
Provided is a lead-free piezoelectric ceramics having enhanced mechanical quality factor (qm) and mechanical strength. The piezoelectric ceramics, includes at least a first crystal grain and a second crystal grain.
Canon Kabushiki Kaisha
01/29/15
20150026940
new patent

Method and device for repolarizing a piezoelectric actuator of an injector of an internal combustion engine of a used vehicle


The successive first, second and third time intervals defining a repolarization sequence of the piezoelectric actuator.. .
01/22/15
20150025487

Instructional medical treatment system


The present invention discloses an appliance for administering medical treatment to a person, as well as methods of using the appliance. In various embodiments, the appliance may be comprised of a medical device, an electronic processor, an electronic display (such as a liquid crystal display (lcd)), an audio output device (such as a piezoelectric speaker/microphone), electronic controls for controlling the operation of the electronic processor, and an electronic input receptacle (such as a dvd drive or usb port) adapted to receive and electronically access an electronic storage device (such as a dvd or flash memory device).
Bluesky Medical Group, Inc.
01/22/15
20150025422

Methods and devices for modulating cellular activity using ultrasound


The present invention comprises methods and devices for modulating the activity or activities of living cells, such as cells found in or derived from humans, animals, plants, insects, microorganisms and other organisms. Methods of the present invention comprise use of the application of ultrasound, such as low intensity, low frequency ultrasound, to living cells to affect the cells and modulate the cells' activities.
Arizona Board Of Regents For And On Behalf Of Arizona State University
01/22/15
20150025418

System and evaluating tissue


A sensor system for measuring an elastic modulus and a shear modulus and a method for evaluating a tissue. The invention pertains to a method for determining the presence of and/or characterizing abnormal growths, using a piezoelectric finger sensor (pefs) system.
Philadelphia Health & Education Corporation D/b/a Drexel University College Of Medicine
01/22/15
20150024537

Ultrasonic transducer, biological sensor, and manufacturing an ultrasonic transducer


A method for manufacturing an ultrasonic transducer includes: forming a piezoelectric element by laminating a lower electrode, a piezoelectric body, and an upper electrode on a first face of a support film; affixing a reinforcing substrate that covers the piezoelectric element to the first face of the support film; forming a photosensitive resin substrate to a second face of the support film that is on an opposite side from the first face; forming an opening in the resin substrate by irradiating the resin substrate with light; and removing the reinforcing substrate.. .
Seiko Epson Corporation
01/22/15
20150024373

Microfluidic chip


A microfluidic chip orients and isolates components in a sample fluid mixture by two-step focusing, where sheath fluids compress the sample fluid mixture in a sample input channel in one direction, such that the sample fluid mixture becomes a narrower stream bounded by the sheath fluids, and by having the sheath fluids compress the sample fluid mixture in a second direction further downstream, such that the components are compressed and oriented in a selected direction to pass through an interrogation chamber in single file formation for identification and separation by various methods. The isolation mechanism utilizes external, stacked piezoelectric actuator assemblies disposed on a microfluidic chip holder, or piezoelectric actuator assemblies on-chip, so that the actuator assemblies are triggered by an electronic signal to actuate jet chambers on either side of the sample input channel, to jet selected components in the sample input channel into one of the output channels..
Premium Genetics (uk) Ltd.
01/22/15
20150023857

Piezoelectric and electrorestrictor materials


One embodiment provides a method, comprising: calculating, using at least one computer, a distance to a hull for an alloy xxy1-x in the range 0.01≦x≦0.99, where x and y are perovskite materials; determining, using the at least one computer, a preferred phase for the alloy in the range 0.01≦x≦0.99; and selecting an alloy composition having the distance to the hull being less than 0.1 ev/atom and for which the preferred phase in at least a portion of the range 0.01≦x≦0.99 is a tetragonal phase. Piezoelectric materials as selected by the method are also provided..
Robert Bosch Llc Research And Technology Center
01/22/15
20150023819

Piezoelectric fan


A piezoelectric fan in which vibration of blades is unaffected by external noise includes a vibrating plate including blades and a base. First piezoelectric elements are attached to a side of a first blade adjacent to the base.
Murata Manufacturing Co., Ltd.
01/22/15
20150023531

Electronic device


According to the present invention, air conduction sound and human body vibration sound (e.g. Bone conduction sound) are transmitted to a user without a need for pressing a vibration body itself to an ear.
Kyocera Corporation
01/22/15
20150022871

Mirror drive device and driving method thereof


In a mirror drive device, a first actuator section and a second actuator section are arranged on both sides of a mirror supporting section that supports a mirror section so as to sandwich the mirror supporting section. The upper electrode of a first actuator section includes a first electrode section and a second electrode section, and an upper electrode of a second actuator section includes a third electrode section and a fourth electrode section.
Fujifilm Corporation
01/22/15
20150022594

Liquid jet head, liquid jet apparatus and manufacturing liquid jet head


A liquid jet head includes a piezoelectric body substrate on which ejection grooves penetrating from an upper surface to a lower surface and non-ejection grooves open on the lower surface are alternately arranged in a reference direction and form a groove row, a cover plate that includes a liquid chamber communicating with the ejection grooves and is bonded on the upper surface of the piezoelectric body substrate, a nozzle plate that includes nozzles communicating with the ejection grooves and is bonded on the lower surface of the piezoelectric body substrate. Common drive electrodes are installed on side surfaces of the ejection grooves, which are on the lower-surface side from nearly 1/2 of a thickness of the piezoelectric body substrate, and individual drive electrodes are installed on side surfaces of the non-ejection grooves, which are on the lower-surface side from nearly 1/2 of a thickness of the piezoelectric body substrate..
Sii Printek Inc.
01/22/15
20150022593

Liquid ejecting apparatus and controlling liquid ejecting apparatus


A pressure chamber array includes one or more dummy pressure chambers in which ejection of ink is not performed, the dummy pressure chamber includes a piezoelectric element, and a drive potential generator continues to apply a drive potential to the piezoelectric element corresponding to the dummy pressure chamber, while the ejection of the ink from a nozzle of at least a pressure chamber adjacent to the dummy pressure chamber is performed.. .
Seiko Epson Corporation
01/22/15
20150022592

Electromechanical transducer, droplet ejection head, and manufacturing electromechanical transducer


An electromechanical transducer includes a first electrode mounted on one of a substrate and a base film, an electromechanical transducer film mounted on the first electrode and made of a piezoelectric substance having a perovskite crystal structure, and a second electrode mounted on the electromechanical transducer film. The electromechanical transducer film includes a {100} plane preferentially oriented to be orthogonal to a thickness direction of the electromechanical transducer film and has a full width at half maximum corresponding to a {200} plane in an x-ray diffraction measurement curve in 2θ-ω scan that is measured by emitting an x-ray beam onto a surface of the electromechanical transducer film at an incident angle θ.
Ricoh Company, Ltd.
01/22/15
20150022459

Piezoelectric actuator and method


An apparatus including a display; and at least one piezoelectric member connected to the display. The at least one piezoelectric member is configured to move the display.
Nokia Corporation
01/22/15
20150022275

Vibrator element, vibrator, oscillator, electronic apparatus, and moving object


A vibrator element includes a base portion, a vibrating arm extending from the base portion, a first electrode provided on the vibrating arm, a second electrode provided above the first electrode, a piezoelectric body arranged between the first electrode and the second electrode, and an insulating film arranged between the first electrode and the piezoelectric body, in which the material of the first electrode contains tin, the material of the insulating film contains sio2, and the material of the piezoelectric body contains aln.. .
Seiko Epson Corporation
01/22/15
20150022274

Piezoelectric film producing process, vibrator element, vibrator, oscillator, electronic device, and moving object


A piezoelectric film producing process includes depositing a piezoelectric body in a mixed atmosphere of n2 gas and ar gas by using a sputtering method, using an al—cu alloy as deposition material.. .
Seiko Epson Corportion
01/22/15
20150022058

Piezoelectric actuator, piezoelectric vibration apparatus, and portable terminal


A piezoelectric actuator includes a stacked body composed of internal electrodes and piezoelectric layers which are stacked on each other; and a surface electrode disposed on at least one of main surfaces of the stacked body so as to be electrically connected to the internal electrodes. The internal electrodes each includes a first electrode and a second electrode.
Kyocera Corporation
01/22/15
20150022057

Piezoelectric device, manufacturing the same, and driven assembly with the same


The present invention relates to a piezoelectric device. A piezoelectric device in accordance with an embodiment of the present invention includes a piezoelectric member and a connection member which are coupled to each other, wherein the piezoelectric member includes a polycrystalline member made of a polycrystalline piezoelectric material, a single crystal member made of a single crystal piezoelectric material and coupled to the connection member, and a textured member provided between the polycrystalline member and the single crystal member and having intermediate properties of the polycrystalline piezoelectric material and the single crystal piezoelectric material..
Samsung Electro-mechanics Co., Ltd.
01/22/15
20150022056

System for driving a piezoelectric load and making same


A driver system comprises a direct current (dc) voltage source and a first bi-directional dc-to-dc converter having a primary side coupled to the dc voltage source and a secondary side and configured to convert a first voltage on the primary side to a second voltage on the secondary. The driver system also comprises a second bi-directional dc-to-dc converter having a primary side coupled to the dc voltage source and a secondary side coupled to the secondary side of the first bi-directional dc-to-dc converter and configured to convert the first voltage on the primary side to a third voltage on the secondary.
General Electric Company
01/22/15
20150022054

Thermal energy harvesting optimisation with bistable elements and collaborative behavior


System for converting thermal energy into electrical energy (s1) intended to be arranged between a hot source (sc) and a cold source (sf), comprising means for converting thermal energy into mechanical energy (6) and a piezoelectric material, with the means for converting thermal energy into mechanical energy (6) comprising groups (g1, g2) of at least three bimetallic strips (9, 11, 13) linked mechanically together by their longitudinal ends and suspended above a substrate (12), each bimetallic strip (9, 11, 13) comprising two stable states wherein it has in each of the states a curvature, with two directly adjacent bimetallic strips (9, 11, 13) having for a given temperature opposite curvatures, with the switching from one stable state of the bimetallic strips (9, 11, 13) to the other causing the deformation of a piezoelectric material.. .
Stmicroelectronics (crolles 2) Sas
01/22/15
20150021290

Method for fabricating acoustic wave device


An acoustic wave device includes a piezoelectric substrate, interdigitated electrodes formed on the piezoelectric substrate, and an insulation film that is formed on a surface of the interdigitated electrodes by atomic layer deposition and includes aluminum oxide.. .
Taiyo Yuden Co., Ltd.
01/22/15
20150020678

Ultra light bar armor


Bar armor currently provides a means of providing partial protection of vehicles and structures against certain types of rocket propelled grenades (rpgs). However, the individual bars must provide enough strength to cut through or deform the outer ogive of an rpg and cause electrical contact with the inner ogive.
01/15/15
20150018687

Ultrasound probe and connection signal lines


An ultrasound probe includes a plurality of piezoelectric elements arranged in an array, a plurality of drawn-out signal lines drawn out from the plurality of piezoelectric elements, and a print board on which a plurality of connection conductors are formed for connecting between a plurality of communication cables connected to an ultrasound diagnostic apparatus body and the plurality of drawn-out signal lines, respectively, connection-conductor insulation layers being formed on the printed board so as to cover respective outer peripheries of the plurality of connection conductors, and a connection-conductor ground conductive layer being formed on the printed board so as to cover individual outer peripheries of the connection-conductor insulation layers, whereby the plurality of connection conductors are shielded from one another.. .
Fujifilm Corporation
01/15/15
20150018046

Electronic device


Provided is an electronic device that can be appropriately used as a type of electronic device that vibrates a panel attached to a housing. The electronic device includes a piezoelectric element, a panel, to which the piezoelectric element is attached, that vibrates due to the piezoelectric element to generate a vibration sound transmitted by vibrating a part of a human body, a housing supporting the panel with a first face, a microphone contained within the housing and disposed on a second face, and a buffer that damps vibration transmitted from the panel to the microphone through the first face and/or the second face, thereby reducing noise picked up by the microphone..
Kyocera Corporation
01/15/15
20150017320

Method of manufacturing stacked thin film piezoelectric filter


A method of manufacturing a stacked thin film piezoelectric filter includes the steps of forming a lower thin film piezoelectric resonator on a substrate, measuring a frequency of the lower thin film piezoelectric resonator and adjusting the frequency, forming an acoustic coupling layer on the lower thin film piezoelectric resonator whose frequency has been adjusted, forming the stacked thin film piezoelectric filter by forming an upper thin film piezoelectric resonator on the acoustic coupling layer, and measuring a frequency of the upper thin film piezoelectric resonator and adjusting the frequency.. .
Murata Manufacturing Co., Ltd.
01/15/15
20150016223

Sensor array with receiver bias electrode


A method of operation of an ultrasonic sensor array includes receiving a receiver bias voltage at a receiver bias electrode of the ultrasonic sensor array to bias piezoelectric sensor elements of the ultrasonic sensor array. The method further includes receiving a transmitter control signal at the ultrasonic sensor array to cause an ultrasonic transmitter of the ultrasonic sensor array to generate an ultrasonic wave.
Qualcomm Incorporated
01/15/15
20150015643

Piezoelectric material, piezoelectric element, and electronic equipment


(wherein 0≦x≦0.080, 0.013≦y≦0.060, 0≦z≦0.040, and 0.986≦a≦1.020.). .
01/15/15
20150015642

Piezoelectric material, piezoelectric element, and electronic device


(in the formula (1), 0.09≦x≦0.30, 0.025≦y≦0.085, 0≦z≦0.02, and 0.986≦a≦1.02).. .
01/15/15
20150015549

Touch stylus and operating method thereof


A touch stylus and operating method thereof are disclosed. The touch stylus includes a piezoelectric unit, a magnet unit, and a coil unit.
Raydium Semiconductor Corporation
01/15/15
20150015526

Touch screen


A touch screen contains a capacitive sensing layer, a first controller for detecting a touching position, a piezoelectric sensing layer, a second controller for detecting a touching pressure, and a main controller. The touch screen also comprises a window area and a non-window area, the capacitive sensing layer is arranged in the window area, the piezoelectric sensing layer is arranged in the non-window area.
01/15/15
20150015515

Method and integrated circuit for operating a sensor array


An apparatus includes an integrated circuit configured to be operatively coupled to a sensor array that is configured to generate an ultrasonic wave. The integrated circuit includes a transmitter circuit configured to provide a first signal to the sensor array.
Qualcomm Incorporated
01/15/15
20150015341

Surface mount type piezoelectric oscillator


A piezoelectric oscillator has an insulating base having a housing portion where internal terminal pads are formed, an integrated circuit (ic) element having rectangular pads bonded to the internal terminal (it) pads, and a piezoelectric oscillation element (poe) connected to the base and ic element. The it pads include two opposing first it pads connected to the poe, two opposing second it pads, one of which is for ac output, and two opposing third it pads formed between the first it pads and the second it pads.
Daishinku Corporation
01/15/15
20150015123

Piezoelectric/electrostrictive film type element and producing piezoelectric/electrostrictive film type element


The piezoelectric/electrostrictive film type element includes a substrate, a lower electrode film, a piezoelectric/electrostrictive film and an upper electrode film. The substrate and the lower electrode film are fixed adherently each other.
Ngk Insulators, Ltd.
01/15/15
20150015122

Piezoelectric/electrostrictive film type element and producing piezoelectric/electrostrictive film type element


Provided is a piezoelectric/electrostrictive film type element in which the film thickness of the piezoelectric/electrostrictive film is small, the piezoelectric/electrostrictive film is dense, and the piezoelectric/electrostrictive film has good durability and insulation quality. The piezoelectric/electrostrictive film type element includes a substrate, a lower electrode film, a piezoelectric/electrostrictive film and an upper electrode film.
Ngk Insulators, Ltd.
01/15/15
20150015121

Piezoelectric material, piezoelectric element, and electronic device


(in the formula (1), 0.09≦x≦0.30, 0.074<y≦0.085, 0≦z≦0.02, and 0.986≦a≦1.02). .
01/15/15
20150015120

Piezoelectric element including fluororesin film


There is provided a piezoelectric element, including: a porous fluororesin film made of a first fluororesin; and a nonporous fluororesin layer stacked on at least one surface of the porous fluororesin film and made of a second fluororesin, wherein the first fluororesin is different in type from the second fluororesin, and when 50 pores are selected in descending order from a pore having the longest thickness-direction length, of pores present in a cut surface of the porous fluororesin film in a thickness direction, an average value a50 of thickness-direction lengths of the 50 pores is 3 μm or smaller.. .
A School Corporation Kansai University
01/15/15
20150015119

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


A piezoelectric vibrating piece includes a vibrating portion, a framing portion, and a connecting portion. The framing portion surrounds the vibrating portion.
Nihon Dempa Kogyo Co., Ltd.
01/15/15
20150015118

Piezoelectric device and fabricating the same


A piezoelectric device includes a piezoelectric vibrating piece, a base, a first lid, and a second lid. The piezoelectric vibrating piece includes an electrode.
Nihon Dempa Kogyo Co., Ltd.
01/15/15
20150015115

Adapter for ultrasonic transducer assembly


Ultrasonic transducer coupling adapters, ultrasonic transducer assemblies with an adapter, and methods for making and for using ultrasonic transducer adapter components are disclosed. An ultrasonic transducer assembly is disclosed for generating and transmitting ultrasonic energy to a work piece (e.g., non-resonant structures).
Dukane Corporation
01/15/15
20150015114

Piecewise piezoelectric energy harvester


A piezoelectric energy harvester device has a cantilevered structure with a rectangular proof mass portion defined by holes through a substrate along three sides of a proof mass portion and supported by a thinned hinge portion for free pivotal movement relative to an anchor portion. Elongated strips of piezoelectric energy harvesting units are formed in side-by-side spaced positions on the hinge portion and aligned parallel or perpendicular to a stress direction.
Texas Instruments Incorporated
01/15/15
20150015112

Thermo-mechano-electrical converter


A thermo-mechano-electric converter including a plurality of shape memory bistable elements embedded in a resilient material intimately associated with a piezoelectric material.. .
Stmicroelectronics (crolles 2) Sas
01/15/15
20150013466

Phasing adder and ultrasound probe


A phasing adder and an ultrasound probe are disclosed. According to one implementation, the phasing adder includes a delay charge transferring unit and a delay adding unit.
Konica Minolta, Inc.
01/15/15
20150013461

Device and measuring physical parameters using saw sensors


A saw mode sensor for sensing parameters such as temperature, pressure, and strain. The sensor is made of a piezoelectric crystal cut at selected angles, with an attached electrode layer with a signal receiver and signal transmitter.
Environetix Technologies Corp.
01/15/15
20150013445

Wind tunnel balance and system with wing model and wind tunnel balance


A wind tunnel balance, with a tunnel wall adaptor configured to fasten the wind tunnel balance to a wall of a wind tunnel, an actuator housing connected to the tunnel wall adaptor, a plurality of force sensors arranged between the actuator housing and the tunnel wall adaptor and which are configured to detect forces acting on the actuator housing, a pivot coupling, by means of which an airfoil model of an aircraft can be pivotably coupled to the actuator housing, and a plurality of piezoelectric actuators arranged in the actuator housing and which are configured to controllably deflect an airfoil model mounted on the pivot coupling in three spatial directions.. .
Airbus Operations (gmbh
01/08/15
20150013037

Thermal measurements using multiple frequency atomic force microscopy


Apparatus and techniques for extracting information carried in higher eigenmodes or harmonics of an oscillating cantilever or other oscillating sensors in atomic force microscopy and related mems work are described. Similar apparatus and techniques for extracting information from piezoelectric, polymer and other materials using contact resonance with multiple excitation signals are also described..
Asylum Research Corporation
01/08/15
20150011899

Device and monitoring variation of animal respiration and/or heartbeat


A method of monitoring variation in either or both respiration and heartbeat of an animal comprising the steps of vibrating a piezoelectric vibrator by continuously or intermittently applying an ac voltage of a frequency corresponding to a natural resonance frequency of the vibrator to the piezoelectric vibrator under such condition that the vibrator is placed directly or indirectly in contact with the surface of the animal's body; collecting a current generated by the vibrator under vibration; and calculating an impedance of the vibrator from a value of the current and a value of the ac voltage applied to the vibrator so as to continuously or intermittently detect variation of the impedance by lapse of time is effective to monitor variation of respiration and/or heartbeat of animals including humans who are in sleep or under exercise and take a variety of positions with high sensitivity.. .
Ueda Japan Radio Co., Ltd.
01/08/15
20150011881

Ultrasound probe and ultrasound diagnostic imaging apparatus


Disclosed is an ultrasound probe including a piezoelectric device which transmits and receives ultrasound, n layers of acoustic matching layers provided on a front side of the piezoelectric device, n layers meaning two layers or more, an acoustic lens which is provided on a front side of the acoustic matching layers and an acoustic reflecting layer which is provided on a back side of the piezoelectric device.. .
Konica Minolta, Inc.
01/08/15
20150010185

Devices and methods for hearing


A device to transmit an audio signal to a user comprises a transducer and a support. The support is configured for placement on the eardrum to drive the eardrum.
Earlens Corporation
01/08/15
20150010176

Apparatus and providing a frequency response for audio signals


An apparatus includes a moving mass transducer. The moving mass transducer generates sound by displacement of a surface defined by a piezoelectric element.
Qualcomm Incorporated
01/08/15
20150010173

Apparatus and providing a frequency response for audio signals


An apparatus includes a housing and a piezoelectric element coupled to the housing. The apparatus also includes an electromagnetic element coupled to the housing.
Qualcomm Incorporated
01/08/15
20150009185

Touch systems and methods employing acoustic sensing in a thin cover glass


Touch systems and methods that employ acoustic sensing in a thin glass sheet are disclosed. The touch system includes a generally planar acoustic-sensing assembly that includes the thin glass sheet.
Corning Incorporated
01/08/15
20150008798

Piezoelectric element, actuator element, actuator, power generating element, power generating device and flexible sheet


A piezoelectric element is provided which enables superior piezoelectric effects to be attained while having a comparatively simple structure and being easy to produce. The piezoelectric element according to the present invention includes a plurality of strip-shaped flexible sheets having: a dielectric elastomer layer; and an electrode layer that is stretchable and laminated on the dielectric elastomer layer, the plurality of flexible sheets being superposed crosswise on each other and alternately folded in an accordion shape such that the flexible sheets are alternately stacked.
Bando Chemical Industries, Ltd.
01/08/15
20150008797

Nanometer electrical generator


A piezoelectric generator is developed by providing a closed vessel within which piezoelectric powders of nanometer sizes are placed with an inert impact material and a viscous inert liquid which maintains the mixture in a cloud-like condition. A small empty space is preferably maintained in the vessel to enable free motion of the mixture when the vessel is moved.
Trixcel, Llp
01/08/15
20150008795

Piezoelectric power generator


A piezoelectric power generator can be used regardless of the size of the parts, and can position the mass center of a mass at the center by disposing the free ends of cantilevers opposite each other when connecting a plurality of cantilevers in series. The piezoelectric power generator is a morph structure cantilever piezoelectric power generator having at least two cantilevers disposed with their free ends opposite to each other, and a mass that is one body provided for bending of the cantilevers..
Hyundai Motor Company
01/08/15
20150008794

Piezoelectric-type electroacoustic conversion device


A lower surface of a circular support plate made of resin is fixed to an upper surface of a ring-shaped frame. A circular through hole is provided in a center portion of the support plate, a lower surface of a circular metal plate is fixed to a portion of an upper surface of the support plate positioned at the circumference of the through hole.
Nec Casio Mobile Communications, Ltd.
01/08/15
20150008792

Self-powered piezoelectric energy harvesting microsystem


A self-powered piezoelectric energy harvesting microsystem device has cmos integrated circuit elements, contacts and interconnections formed at a proof mass portion of a die region of a semiconductor wafer. Piezoelectric energy harvesting unit components connected to the integrated circuit elements are formed at a thinned beam portion of the die region that connects the proof mass portion for vibration relative to a surrounding anchor frame portion.
Texas Instruments Incorporated
01/08/15
20150008791

Nanometer electrical generator


A piezoelectric generator is developed by providing a closed vessel within which piezoelectric powders of nanometer sizes are placed with an inert impact material and a viscous inert liquid which maintains the mixture in a cloud-like condition. A small empty space is preferably maintained in the vessel to enable free motion of the mixture when the vessel is moved.
Trixcel, Llp
01/08/15
20150008789

Elastic wave device and manufacturing same


An elastic wave device includes elastic wave elements, each including a piezoelectric layer directly or indirectly supported by a supporting substrate and an electrode disposed in contact with the piezoelectric layer, and a highly heat-conductive member stacked on a surface of the supporting substrate, opposite to the surface supporting the piezoelectric layer, in which the thermal conductivity of the supporting substrate is higher than the thermal conductivity of the piezoelectric layer, the coefficient of linear expansion of the supporting substrate is lower than the coefficient of linear expansion of the piezoelectric layer, the highly heat-conductive member has a larger area than the surface of the supporting substrate supporting the piezoelectric layer, and the thermal conductivity of the highly heat-conductive member is higher than that of the piezoelectric layer.. .
Murata Manufacturing Co., Ltd.


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

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