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Piezoelectric patents



      

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




Date/App# patent app List of recent Piezoelectric-related patents
05/19/16
20160142827 
 Electronic apparatus patent thumbnailElectronic apparatus
An electronic apparatus comprises: an exterior exposed to the outside; a piezoelectric vibrating element being transparent and being located inside the exterior; a vibration unit being transparent and including a surface on which the piezoelectric vibrating element is located, said vibration unit being configured to vibrate by the piezoelectric vibrating element to generate a voice; and a display located on the inner side than the piezoelectric vibrating element inside the exterior and located so as to overlap the piezoelectric vibrating element in a plan view.. .
Kyocera Corporation


05/19/16
20160142822 
 Electroacoustic transducer patent thumbnailElectroacoustic transducer
An electroacoustic transducer is provided that combines the properties and advantages of the known concepts of the thickness mode transducer and of the bending transducer with each other. For this purpose, an electroacoustic transducer is provided, which includes a housing and an oscillating structure.
Robert Bosch Gmbh


05/19/16
20160142040 
 Demultiplexing apparatus patent thumbnailDemultiplexing apparatus
An elastic wave filter includes a transmission circuit provided on a first main surface of a first piezoelectric substrate and a reception circuit provided on a second main surface of a second piezoelectric substrate. A mounting board on which the elastic wave filter is mounted includes a first ground electrode opposed to the transmission circuit; a first rear surface ground electrode overlapped with the transmission circuit in plan view of a rear surface; a second ground electrode opposed to the reception circuit; a second rear surface ground electrode overlapped with the reception circuit in plan view of the rear surface; a line electrode used for connection between the first ground electrode and the second ground electrode; and a first via electrode and a second via electrode passing through the mounting board.
Murata Manufacturing Co., Ltd.


05/19/16
20160142039 
 Contour-mode piezoelectric micromechanical resonators patent thumbnailContour-mode piezoelectric micromechanical resonators
A contour mode micromechanical piezoelectric resonator. The resonator has a bottom electrode; a top electrode; and a piezoelectric layer disposed between the bottom electrode and the top electrode.
The Regents Of The University Of California


05/19/16
20160142038 
 Piezoelectric thin film resonator, filter, and duplexer patent thumbnailPiezoelectric thin film resonator, filter, and duplexer
A piezoelectric thin film resonator includes: a substrate; a piezoelectric film located on the substrate; a lower electrode and an upper electrode facing each other across at least a part of the piezoelectric film; and an insertion film inserted in the piezoelectric film, located in at least a part of an outer peripheral region within a resonance region where the lower electrode and the upper electrode face each other across the piezoelectric film, and not located in a center region of the resonance region, wherein a difference between a total film thickness of the piezoelectric film and the insertion film in a first region, in which the insertion film is inserted, within the resonance region and a film thickness of the piezoelectric film in a second region, in which the insertion film is not inserted, is less than a film thickness of the insertion film.. .
Taiyo Yuden Co., Ltd.


05/19/16
20160141980 
 Piezoelectric energy harvesting and signal processing system, and  use patent thumbnailPiezoelectric energy harvesting and signal processing system, and use
The present invention relates to a system comprising an energy harvester device and a signal processing device coupled to the energy harvester device. The energy harvester device includes an elongate resonator beam comprising a piezoelectric material extending between first and second ends.
Microgen Systems, Inc.


05/19/16
20160141979 
 Driving device patent thumbnailDriving device
This invention prevents a load from being applied to a piezoelectric element due to a flection deformation of a flexible substrate along with a movement of a driving device and a driving efficiency from lowering. The flexible substrate of the driving device includes a first fixing portion fixed to the piezoelectric element, a second fixing portion fixed to a second holding member, and a bending portion configured to make a flection deformation along with a movement of a vibrating plate.
Canon Kabushiki Kaisha


05/19/16
20160141488 
 Method for electrically contacting a piezoelectric ceramic patent thumbnailMethod for electrically contacting a piezoelectric ceramic
A method for electrically contacting a piezoelectric ceramic includes: providing the piezoelectric ceramic having electrodes for electrically contacting the piezoelectric ceramic and having a flexible, electrically conductive film; producing a composite by applying the flexible, electrically conductive film at least partially to an electrode of the piezoelectric ceramic; forming a durable, electrically conductive connection between the flexible, electrically conductive film and the electrode of the piezoelectric ceramic. Also a sound transducer, as well as a sound transducer array produced using the method for electrically contacting a piezoelectric ceramic..
Robert Bosch Gmbh


05/19/16
20160141487 
 Manufacturing  high-temperature piezoelectric element electrode and piezoelectric element structure patent thumbnailManufacturing high-temperature piezoelectric element electrode and piezoelectric element structure
A manufacturing method for an electrode of a high-temperature piezoelectric element, comprises: coating traditional conductive slurry on surfaces of a molded piezoelectric material (1); then polarizing the piezoelectric material (1); and then removing the coating of conductive slurry (2) on the surfaces there of, and connecting the piezoelectric material to outside electrode lead wires (3) to output a signal generated by piezoelectric effect thereof. A structure of a high-temperature piezoelectric element, comprises polarized piezoelectric material (1), wherein the coating of metallic conductive slurry (2) is removed from the surfaces of the polarized piezoelectric material (1) and the surfaces of the polarized piezoelectric material (1) is connected to electrode lead wires (3) to output a signal generated by piezoelectric effect thereof.
Xiamen Niell Electronics Co., Ltd.


05/19/16
20160141486 
 Piezoelectric composition and piezoelectric device patent thumbnailPiezoelectric composition and piezoelectric device
Provided is a piezoelectric composition containing a major component that is a perovskite-type oxide which is represented by the general formula abo3, which contains no pb, and which has a-sites containing bi, na, and k and b-sites containing ti. The ti is partly substituted with a transition metal element me that is at least one selected from the group consisting of mn, cr, fe, and co.
Tdk Corporation


05/19/16
20160141485 

Piezoelectric actuator and capsule endoscope including the same


A capsule endoscope includes a power supply operably coupled to a piezoelectric element. The power supply is configured to provide an alternating electric signal to the piezoelectric element.
Samsung Electro-mechanics Co., Ltd.


05/19/16
20160141333 

Magneto-elastic non-volatile multiferroic logic and memory with ultralow energy dissipation


Memory cells, non-volatile logic gates, and combinations thereof have magneto-tunneling junctions (mtjs) which are switched using potential differences across a piezoelectric layer in elastic contact with a magnetostrictive nanomagnet of an mtj. One or more pairs of electrodes are arranged about the mtj for supplying voltage across the piezoelectric layer for switching.
Virginia Commonwealth University


05/19/16
20160139290 

Fiber optic based magnetic sensing apparatus, systems, and methods


In some embodiments, an apparatus and a system, as well as a method and an article, may operate to acquire a monitoring output from a first distributed feedback (dfb) fiber laser sensor at least partially bonded to a piezoelectric portion of a downhole device, to demodulate the monitoring output to determine a frequency shift in a lasing frequency of the dfb fiber laser sensor, and to correlate the frequency shift to a measure of magnetic field strength to determine a strength of a downhole magnetic field. Additional apparatus, systems, and methods are disclosed..
Halliburton Energy Services, Inc.


05/19/16
20160138989 

Electronic device, physical quantity sensor, pressure sensor, altimeter, electronic apparatus, and moving object


A physical quantity sensor includes a substrate, a piezoelectric resistive element that is disposed on one surface side of the substrate, a wall portion that is disposed on the one surface side of the substrate so as to surround the piezoelectric resistive element in a plan view of the substrate, and a ceiling portion that is disposed on an opposite side to the substrate with respect to the wall portion and forms a cavity along with the wall portion, in which an inner circumferential edge of an end portion of the wall portion on an opposite side to the substrate includes curved portions which are curved in the plan view.. .
Seiko Epson Corporation


05/19/16
20160138730 

Valve stroke amplification mechanism assembly


A motion enhancing mechanism assembly suited for use with fluid control devices such as a piezoelectric modulating actuator of a proportional control valve. Range-limited axial motion of the actuator is transmitted through an amplifier disc to cause tilting of a control plate initially in sealing registration with an orifice ridge surrounding a fluid conduit aperture.
Vistadeltek, Llc


05/19/16
20160138419 

Composite piezoelectric application for ice shedding


A flow surface comprises a composite material formed of a plurality of layers of the composite, and a piezoelectric actuator located within the layers or on an outer surface of the composite material. The piezoelectric actuator is actuatable to vibrate the composite material and one of inhibit ice build-up or shed ice which has formed..
General Electric Company


05/19/16
20160137494 

Electronic device, physical quantity sensor, pressure sensor, altimeter, electronic apparatus, and moving object


An physical quantity sensor includes a substrate, a piezoelectric resistive element that is disposed on one surface side of the substrate, a wall portion that is disposed on the one surface side of the substrate so as to surround the piezoelectric resistive element in a plan view of the substrate, and a ceiling portion that is disposed on an opposite side to the substrate with respect to the wall portion and forms a cavity along with the wall portion, in which the wall portion includes an insulating layer, and wiring layers that surround the insulating layer together and have higher resistance to an etchant which can etch the insulating layer than resistance of the insulating layer.. .
Seiko Epson Corporation


05/19/16
20160136689 

Electroacoustic transducer


An electroacoustic transducer includes: a housing; an oscillating structure including at least one disk-shaped piezoelectric element having first and second surfaces; an acoustic transmitter; and electrical connecting element contacting electrodes of the piezoelectric element. The acoustic transmitter has parallel first and second surfaces, which first surface is joined to the first surface of the piezoelectric element, and which second surface is suitable for emitting and/or receiving sound waves.
Robert Bosch Gmbh


05/19/16
20160136687 

Low-profile, low-frequency, and low-impedance broad-band ultrasound transducer and methods thereof


An ultrasound transducer and a method of making this transducer, where the transducer includes at least two piezoelectric elements, oriented adjacent to each other in a stack. Each piezoelectric element includes a first surface which includes an electrode of a first polarity, a second surface which includes an electrode of a second polarity, a thickness between the first surface and the second surface, and an ultrasound transmitting surface.
Zetroz, Inc.


05/19/16
20160136664 

Piezo-pneumatic valve driving type dispensing pump and dispensing viscous liquid by using the pump


A piezo-pneumatic valve driving type dispensing pump having an improved dispensing speed and a simplified structure, and a method of dispensing a viscous liquid by using the pump. Accordingly, a viscous liquid may be easily dispensed by reciprocating a valve rod inserted into a reservoir storing the viscous liquid, by using an air pressure.
Protec Co., Ltd


05/19/16
20160136661 

Piezoelectric dispenser and calibrating stroke of the same


A piezoelectric dispenser having a uniform dispensing quality of a viscous liquid by calibrating an operation stroke of a valve rod discharging a viscous liquid (vertical operation displacement of the valve rod) by setting the operation stroke of the valve rod to an initial value during use, and a method of calibrating the operation stroke of the piezoelectric dispenser. Accordingly, a uniform dispensing accuracy of viscous liquid may be maintained, and degradation of the dispensing quality of a viscous liquid due to abrasion of components may be reduced..
Protec Co., Ltd


05/19/16
20160136367 

Respiratory therapy apparatus and methods


A vibratory pep respiratory therapy device (100) includes a valve element (11) on a rocker arm (12) that opens and closes an opening (10) during exhalation through the apparatus. An accelerometer (20) including a piezoelectric beam (22) supported at one end (23) is mounted on the outside of the housing (2) of the device to respond to vibration transmitted though the housing caused by oscillating movement of the rocker arm (12).
Smiths Medical International Limited


05/19/16
20160135714 

Exhalation measurement device, and control method


The exhalation measurement device of certain implementations comprise a chamber, a measurement component, a piezoelectric pump, a first learning controller, and a second learning controller. The chamber may temporarily hold exhalation.
Panasonic Healthcare Holdings Co., Ltd.


05/19/16
20160135698 

Ultra-low power continuous heart rate sensing in wearable devices


Systems and methods may provide for a piezoelectric film that generates an excitation signal in response to pressure variations on a surface of the piezoelectric film and an analog front end coupled to the piezoelectric film, wherein the analog front end generates a first measurement signal based on the excitation signal. Additionally, a heart rate monitor may be coupled to the analog front end, wherein the heart rate monitor generates a heart rate measurement based on the first measurement signal.
Intel Corporation


05/12/16
20160134257 

Surface acoustic wave device having end-to-end combinable selectable electrode sub-elements


A described surface acoustic wave device includes a piezoelectric substrate and a configurable electrode assembly. The assembly includes: an array of n rows of m electrically isolated elongated electrode sub-elements arranged end-to-end in columns; a first signal bus proximate to the first row of the n rows; a first matrix of row addressable switches configured to electrically couple the first signal bus with a respective electrode sub-element of the first row of electrode sub-elements; a second signal bus proximate to the nth row of the n rows; a second matrix of addressable row switches configured to electrically couple the second signal bus with a respective electrode sub-element of the nth row of electrode sub-elements; and a plurality of addressable column switches, each addressable column switch respectively configured to electrically couple an electrode of a column of the m columns with an end-to-end adjacent electrode of the same column..
Elwha Llc


05/12/16
20160134256 

Surface acoustic wave device having selectable electrode elements


Described embodiments include a surface acoustic wave device, method, and apparatus. The device includes a piezoelectric substrate and a configurable electrode assembly.
Elwha Llc


05/12/16
20160134255 

Surface acoustic wave device and apparatus including the same


A surface acoustic wave device includes: a piezoelectric substrate; an interdigital transducer disposed on the piezoelectric substrate, the interdigital transducer being configured to transduce a driving signal into a surface acoustic wave, and transduce a reflected surface acoustic wave into a response signal; a reflector arranged on the piezoelectric substrate and configured to reflect the surface acoustic wave input from the interdigital transducer; a first antenna disposed on the piezoelectric substrate, the first antenna extending radially from the interdigital transducer, and the first antenna being configured to receive the driving signal and transmit the response signal; and a second antenna disposed on the piezoelectric substrate, the second antenna extending radially from the interdigital transducer to be asymmetrical with respect to the first antenna, and the second antenna being configured to receive the driving signal and transmit the response signal.. .
Samsung Electro-mechanics Co., Ltd.


05/12/16
20160133825 

Piezoelectric layer, piezoelectric component, piezoelectric actuator, piezoelectric sensor, hard-disk drive and ink jet printer


A piezoelectric layer made of potassium sodium niobate which is a perovskite type compound represented by the formula abo3, wherein, in the raman spectroscopy measurement of the piezoelectric layer which is performed while the piezoelectric layer is rotated in the in-plane direction, the measured intensity of the lattice vibration region of the perovskite type compound in the raman spectrum obtained in polarized raman spectroscopy measurement (yx) has a periodicity of approximately 90°, wherein, the polarized raman spectroscopy measurement (yx) is performed while the piezoelectric layer is rotated in the in-plane direction and raman scattering light is polarized in a direction perpendicular to that of the incident light.. .
Tdk Corporation


05/12/16
20160133823 

Composite substrate and producing the same


In the composite substrate 10, the piezoelectric substrate 12 and the support substrate 14 are bonded by direct bonding using an ion beam. One surface of the piezoelectric substrate 12 is a negatively-polarized surface 12a and another surface of the piezoelectric substrate 12 is a positively-polarized surface 12b.
Ngk Ceramic Device Co., Ltd.


05/12/16
20160133821 

Surface acoustic wave device having matrices of combinable selectable electrode sub-elements


Described embodiments include a surface acoustic wave device, method, and apparatus. The device includes a piezoelectric substrate and a configurable electrode assembly.
Elwha Llc


05/12/16
20160133820 

Surface acoustic wave device having combinable selectable electrode sub-elements


Described embodiments include a surface acoustic wave device, method, and apparatus. The device includes a piezoelectric substrate and a configurable electrode assembly.
Elwha Llc


05/12/16
20160133283 

Suspension assembly having a microactuator electrically connected to a gold coating on a stainless steel surface


A novel suspension assembly includes a suspension assembly mounting plate, a microactuator mounting structure extending from the suspension assembly mounting plate, a load beam extending from the microactuator mounting structure, and a laminated flexure attached to the load beam. The laminated flexure includes a tongue that has a read head bonding surface.
Western Digital Technologies, Inc.


05/12/16
20160133222 

Glass book


A glass book is a sealed stack of layers of durable, amorphous embedding material, such as glass or a glass-like material, that strongly resists deterioration over millennium-long time scales. Embedded in the layers are components of silicon and other insulating, semiconductive, and conductive elements and combinations of elements likewise durable.

05/12/16
20160132187 

Superpixel array of piezoelectric ultrasonic transducers for 2-d beamforming


An array of piezoelectric ultrasonic transducer elements includes a plurality of superpixel regions. Each superpixel region includes at least two pixel sets, a first pixel set of the at least two pixel sets being disposed in a central portion of the superpixel region, and at least a second pixel set being disposed in an outer portion of the superpixel region.
Qualcomm Incorporated


05/12/16
20160132151 

Pressure detection and display apparatus and electronic device


A pressure detection and display apparatus can provide good visibility even if a person wears polarized sunglasses. The pressure detection and display apparatus includes a piezoelectric sensor having upper electrode, lower electrode, and a piezoelectric layer interposed between the upper electrode and the lower electrode a polarization plate disposed under the lower electrode, and a display member disposed under the polarization plate.
Nissha Printing Co., Ltd.


05/12/16
20160131747 

Active beam-forming technique for piezoelectric ultrasonic transducer array


An apparatus includes an array of pixels, each pixel including in-cell pixel logic and a piezoelectric micromechanical ultrasonic transducer (pmut) element, each in-cell pixel logic being communicatively coupled with at least one adjacent pixel in the array. Transceiver electronics may operate the array in a selectable one of a first mode and a second mode.
Qualcomm Incorporated


05/12/16
20160131542 

Systems and methods for press force detectors


Certain example embodiments include a press sensor element that includes a piezoelectric layer having a first surface in communication with a first layer, the first layer including a first conductive region, where the first conductive region covers at least a central portion the first surface. The sensor element includes a second surface in communication with a second layer, the second layer including a second conductive region, a third conductive region, and a first non-conductive void region separating the second conductive region and the third conductive region.
Interlink Electronics, Inc.


05/12/16
20160131450 

Electromechanical firing mechanism


An electromechanical firing mechanism having a stack of piezoelectric elements arranged to move a firing pin by switching the piezoelectric material from a static state to an electrically charged state. The electromechanical firing mechanism is comprised of a bolt housing a striker and a firing pin.

05/12/16
20160130387 

Film and polymeric piezoelectric material


A film having a molecular orientation; having an absolute difference Δre between the maximum and minimum retardations re of 100 nm or less in a case wherein the retardations re are measured at every 0.8 mm along a measured length of 10 mm centered at the center of a principal plane of the film and at a wavelength of 550 nm; and having an average re (ave) of the retardations re in a range of from 700 nm to 900 nm or in a range of from 1250 nm to 1450 nm.. .
Mitsui Chemicals., Inc.


05/12/16
20160129142 

System and reducing germs by means of plasma


Disclosed is a system for reducing germs by means of plasma. To this end, a piezoelectric transformer is associated with a dielectric film.
Relyon Plasma Gmbh


05/12/16
20160128769 

Surgical device for the removal of tissue employing a vibrating beam with cold plasma sterilization


A surgical instrument for treating body tissues through narrow body passages employs an elongated cantilevered beam having a proximal end supported in a rigid block and a narrower distal end extendable through the narrow passages. One or more piezoelectric actuators are fixed to the beam surface and energized from an ac source through electrodes interspersed with the piezoelectric actuators to produce oscillatory motion of the beam distal end in multiple modes of movement with sensing electronics to monitor and control the distal mechanical movement.

05/05/16
20160127841 

Audio device


Provided is an audio device, including: a vibrator 10 that includes a piezoelectric element 101 configured to undergo flexure and a panel 102 configured to be bent directly by the piezoelectric element 101 to vibrate; and a holder 60 that includes a behind-the-ear portion 602 to be hooked over a helix of a user's ear and that holds the vibrator 10 in a position that allows the vibrator 10 to abut against the user's ear, wherein sound is heard by a user.. .
Kyocera Corporation


05/05/16
20160127836 

Unit, electronic device, and manufacturing electronic device


According to one of aspects, provided is an electronic device including a panel 10, a piezoelectric element 30 attached to the panel 10, and a substrate 25 attached to a main surface of the piezoelectric element 30. The panel 10 is configured to be deformed due to deformation of the piezoelectric element 30, and sound is transmitted to an object that is in contact with the deformed panel 10.
Kyocera Corporation


05/05/16
20160127820 

Piezoelectric ceramic dual-frequency earphone structure


A piezoelectric ceramic dual-frequency earphone structure includes an earphone housing, a dynamic transducer, a piezoelectric ceramic transducer and a circuit board. The piezoelectric ceramic transducer is installed in the receiving region.
Jetvox Acoustic Corp.


05/05/16
20160127524 

Electronic apparatus


An electronic apparatus is disclosed. An electronic apparatus comprises a display, a cover member, a first portion configured to vibrate more easily than the cover member, a piezoelectric vibrating element, and a controller.
Kyocera Corporation


05/05/16
20160126930 

Bulk acoustic wave resonator comprising a ring


An acoustic resonator includes a first electrode disposed over a substrate; a piezoelectric layer disposed over the first electrode; and a second electrode disposed over the piezoelectric layer; a passivation layer disposed over the second electrode and a ring disposed between the substrate and the passivation layer. .
Avago Technologies General Ip (singapore) Pte. Ltd.


05/05/16
20160126927 

Surface acoustic wave element and manufacturing the same


The present invention relates to a surface acoustic wave element and a method of manufacturing the same, and more specifically, to a surface acoustic wave element and a method of manufacturing the same, the element including a piezoelectric substrate; a plurality of idt electrodes formed on the piezoelectric substrate; a plurality of resonator electrodes formed on the piezoelectric substrate; a wiring metal layer formed as a wiring area to electrically connect the plurality of idt electrodes and the plurality of resonator electrodes; and an insulation layer formed on the piezoelectric substrate, the plurality of idt electrodes, the plurality of resonator electrodes and the wiring metal layer.. .
Wisol Co., Ltd.


05/05/16
20160126868 

Systems and methods for harvesting piezoelectric energy from hydraulic pressure fluctuations


Aspects of the present disclosure relate to systems and methods for harvesting energy from the pressure ripple of a fluid system. In an example embodiment, a system comprises a housing; a piezoelectric stack in fluid communication with a pressure ripple of a fluid system and configured to generate a piezoelectric voltage and an associated piezoelectric current in response to pressure ripple characteristics, wherein the piezoelectric stack is disposed within the housing; and regulatory circuitry in electrical communication with the piezoelectric stack and configured to convert the piezoelectric current into dc voltage..
Georgia Tech Research Corporation


05/05/16
20160126867 

System and electric power generation using piezoelectric modules


A piezoelectric power generation system includes a housing and one or more piezoelectric modules disposed within the housing. Each of the one or more piezoelectric modules include a support structure, one or more piezoelectric components, and one or more exciters.
Chevron U.s.a. Inc.


05/05/16
20160126866 

System and electric power generation using structured stacked piezoelectric arrays


A piezoelectric power generation system includes a housing defining an opening therethrough and a support structure disposed within the housing, the support structure comprising a plurality of portions. The piezoelectric power generation system also includes one or more piezoelectric elements disposed between two of the plurality of portions of the support structure within the housing.
Chevron U.s.a. Inc.


05/05/16
20160126865 

System and electric power generation using structured piezoelectric arrays


A piezoelectric power generation system includes a housing, the housing defining an opening therethrough. The piezoelectric power generation system further includes a support structure disposed within the housing, and one or more piezoelectric elements disposed on a surface of the support structure within the housing.
Chevron U.s.a. Inc.


05/05/16
20160126864 

Vibration drive device in which separation between members by external force is suppressed, lens barrel, image pickup apparatus, and stage device


A vibration drive device which suppresses separation between members thereof when an external force is applied thereto. The vibration drive device excites vibration in a vibrating body to move the vibrating body and a driven body relative to each other.
Canon Kabushiki Kaisha


05/05/16
20160126449 

Vibrator and ultrasonic motor


This invention prevents an adhesive portion between a piezoelectric element and a conducting member of a small vibrator from peeling off. In a vibrator, a conducting member includes at least one first adhesive portion adhered to an electrode, at least one second adhesive portion adhered to an elastic member, and a feed portion electrically connected to means for applying an external voltage.
Canon Kabushiki Kaisha


05/05/16
20160126448 

Integrating a piezoresistive element in a piezoelectronic transistor


A semiconductor device, a piezoelectronic transistor (pet) device, and a method of fabricating the pet device are described. The method includes forming a first stack of dielectric layers, forming a first metal layer over the first stack, forming a piezoelectric (pe) material on the first metal layer, and forming a second metal layer on the pe material.
International Business Machines Corporation


05/05/16
20160126447 

Piezoelectronic transistor with co-planar common and gate electrodes


A method of forming a piezoelectronic transistor (pet), the pet, and a semiconductor device including the pet are described. The method includes forming a piezoelectric (pe) element with a trench and forming a pair of electrodes on the pe element in a coplanar arrangement in a first plane, both of the pair of electrodes being on a same side of the pe element.
International Business Machines Corporation


05/05/16
20160126446 

Passivation and alignment of piezoelectronic transistor piezoresistor


A method of forming a piezoelectronic transistor (pet) device, the pet device, and a semiconductor including the pet device are described. The method includes forming a first metal layer, forming a layer of a piezoelectric (pe) element on the first metal layer, and forming a second metal layer on the pe element.
International Business Machines Corporation


05/05/16
20160126444 

Piezoelectric actuator


The invention relates to a piezoelectric actuator (1) which acts as micromechanical actuating element. Thus, the piezoelectric actuator (1) has a piezoelectric element (2) and an electrode structure (5), wherein said electrode structure (5) is arranged with the electrodes thereof exclusively on one side of the piezoelectric element (2).

05/05/16
20160126044 

Piezoelectronic switch device for rf applications


A piezoelectronic switch device for radio frequency (rf) applications includes a piezoelectric (pe) material layer and a piezoresistive (pr) material layer separated from one another by at least one electrode, wherein an electrical resistance of the pr material layer is dependent upon an applied voltage across the pe material layer by way of an applied pressure to the pr material layer by the pe material layer; and a conductive, high yield material (c-hym) comprising a housing that surrounds the pe material layer, the pr material layer and the at least one electrode, the c-hym configured to mechanically transmit a displacement of the pe material layer to the pr material layer such that applied voltage across the pe material layer causes an expansion thereof and an increase the applied pressure to the pr material layer, thereby causing a decrease in the electrical resistance of the pr material layer.. .
International Business Machines Corporation


05/05/16
20160124560 

Piezoelectric sensor and pressure detection apparatus


A piezoelectric sensor in which position detection and load detection can be achieved. The piezoelectric sensor includes a piezoelectric layer interposed between the upper electrode and the lower electrode.
Nissha Printing Co., Ltd.


05/05/16
20160121610 

Inkjet apparatus and manufacturing inkjet apparatus


An inkjet apparatus capable of achieving a good withstand voltage in a movable part of a piezoelectric element is provided. An inkjet apparatus (1) is provided, wherein the inkjet apparatus (1) comprises: an actuator substrate (2), partitioning a cavity (5) for accumulating ink; a vibrating film (6), supported by the actuator substrate (2) and partitioning the cavity (5); and a piezoelectric element (7), on the vibrating film (6), and comprising an upper electrode (20), a lower electrode (18), and a piezoelectric film (19) between the upper electrode (20) and the lower electrode (18); wherein the piezoelectric film (19) extends along a space covering the whole cavity (5); and the upper electrode (20) is constrained in an inner space of the cavity..
Rohm Co., Ltd.


05/05/16
20160121368 

Ultrasonic transducer, ultrasonic probe, and ultrasonic examination device


An ultrasonic transducer includes a substrate, a supporting film disposed on the substrate, and a piezoelectric element disposed on the supporting film. The substrate includes an opening.
Seiko Epson Corporation


04/28/16
20160120016 

Low-power, compact piezoelectric particle emission


A low-power, compact piezoelectric particle emitter for emitting particles such as x-rays and neutrons. A piezoelectric transformer crystal receives an input voltage at an input end and generates a higher output voltage at an output electrode disposed at an output end.
The Curators Of The University Of Missouri


04/28/16
20160119721 

Electroacoustic converter


In an embodiment, an electroacoustic converter has an enclosure, piezoelectric sounding body, electromagnetic sounding body, passage, and wiring members. The piezoelectric sounding body includes a first vibration plate supported directly or indirectly on the enclosure, and a piezoelectric element placed at least on one side of the first vibration plate.
Taiyo Yuden Co., Ltd.


04/28/16
20160119720 

Electroacoustic converter and electronic device


In an embodiment, an electroacoustic converter (earphone 100) has an enclosure 41, piezoelectric sounding body 32, electromagnetic sounding body 31, and passage 35. The piezoelectric sounding body 32 includes a first vibration plate 321 having a periphery supported directly or indirectly on the enclosure 41, and a piezoelectric element 322 placed at least on one side of the vibration plate 321.
Taiyo Yuden Co., Ltd.


04/28/16
20160119719 

Electroacoustic converter and electronic device


In an embodiment, an electroacoustic converter (earphone 100) has an enclosure 41, piezoelectric sounding body 32, electromagnetic sounding body 31, and passage 35. The piezoelectric sounding body 32 includes a vibration plate 321 having a periphery supported directly or indirectly on the enclosure 41, and a piezoelectric element 322 placed at least on one side of the vibration plate 321.
Taiyo Yuden Co., Ltd.


04/28/16
20160118958 

Acoustic resonator device with structures having different apodized shapes


An acoustic resonator device includes a bottom electrode disposed on a substrate over an acoustic reflecting feature, a piezoelectric layer disposed on the bottom electrode and a top electrode disposed on the piezoelectric layer, where an overlap between the top electrode, the piezoelectric layer and the bottom electrode over the acoustic reflecting feature define an active region of the acoustic resonator device. The acoustic resonator device further includes at least one of a wing having an outer edge extending beyond at least a portion of an outer edge of the top electrode, and a first frame formed in one of an outer region or a center region of the top electrode.
Avago Technologies General Ip (singapore) Pte. Ltd


04/28/16
20160118956 

Surface acoustic wave resonator and surface acoustic wave filter device


In a surface acoustic wave resonator, a first idt electrode defining a first idt and a second idt electrode defining a second idt are located on a first principal surface of a piezoelectric substrate. A direction of an electric field applied to the first idt electrode and a direction of an electric field applied to the second idt electrode are opposite to each other with respect to a direction of a projected axis resulting from projecting a c-axis of the piezoelectric substrate to the first principal surface of the piezoelectric substrate..
Murata Manufacturing Co., Ltd.


04/28/16
20160118914 

Vibration wave drive device, stator for a vibration wave motor, vibration wave motor, driving control system, optical apparatus, and manufacturing a vibration wave driving device


A vibration wave drive device (25) includes an annular piezoelectric element (20) including a piezoelectric material (1) and multiple electrodes provided sandwiching the piezoelectric material (1), the annular piezoelectric element being configured to vibrate by a traveling wave of a wavelength λ; and a power feeding member (8) including at least electric wire (8a) for supplying electric power to the element (20), the feeding member (8) being provided to a first surface of the element (20). The element (20) includes at least two driving regions (15, 16), and a non-driving region (17) arranged between two of the at least two driving regions and has an average annular length of nλ/4, n being an odd number.
Canon Kabushiki Kaisha


04/28/16
20160118913 

Vibration wave motor and driving apparatus using the vibration wave motor


A vibration wave motor includes: a vibrating plate having a rectangular surface; a piezoelectric device bonded to the vibrating plate, and configured to vibrate at high frequency; and a projection provided to the vibrating plate or the piezoelectric device. In the vibration wave motor, a natural vibration mode, which has a resonant frequency equal to or adjacent to a resonant frequency of torsional vibration in a natural vibration mode under a state in which the vibrating plate, the piezoelectric device, and the projection are integrated, is a natural vibration mode of bending vibration in a direction parallel to or orthogonal to a torsion center axis of the torsional vibration in the natural vibration mode.
Canon Kabushiki Kaisha


04/28/16
20160118573 

Piezoelectric actuating device and valve equipped therewith


A piezoelectric actuator device, with at least one piezoelectric transducer which has at least one piezoelectric body and an electrode unit assigned to this piezoelectric body, with overall capacitance and including two electrodes lying opposite one another. At least one of the two electrodes of the electrode unit is divided into several individual sub-electrodes, spaced apart from one another and forming with the electrode lying opposite several sub-electrode pairs defining in each case a partial capacitance of the overall capacitance.
Festo Ag & Co. Kg


04/28/16
20160117035 

Pressure detection device and input device


A piezoelectric sensor capable of position detection and load detection within the sensor. The sensor includes a piezoelectric layer that generates an electric charge when pressed by an inputting means, a first electrode that is arranged on a first main face of the piezoelectric layer, a second electrode that is arranged on a second main face of the piezoelectric layer opposite the first main face, a first capacitor or a first resonant circuit connected to the first electrode, and a first detection section connected to the first electrode..
Nissha Printing, Co., Ltd.


04/28/16
20160117034 

Scanned piezoelectric touch sensor device


Embodiments of the disclosure generally provide an integrated input device that is configured to sense the position and amount of force applied by input objects that are in contact with an input region of an input device. The input device is generally configured to sense the position and amount of force applied by an input object that is in contact with the input region using a piezoelectric material.
Synaptics Incorporated


04/28/16
20160116732 

Piezoelectric and electromagnetic type two-dimensional optical deflector and its manufacturing method


In a two-dimensional optical deflector including: a mirror; two first torsion bars coupled to the mirror along a first axis; an inner frame surrounding the mirror; two piezoelectric actuators each coupled between the first torsion bars and supported by the inner frame; an outer frame surrounding the inner frame; and two second torsion bars coupled between the inner frame and the outer frame along a second axis; a first permanent magnet layer formed on at least a part of a rear-side surface of the inner frame. A base supports the outer frame.
Stanley Electric Co., Ltd.


04/28/16
20160116444 

Sensors, methods of making and devices


Disclosed sensors can include at least one resonator (in some embodiments, at least two resonators) and various other structures that may be formed in association with the resonators. The at least one resonator in embodiments can include a bottom electrode, a piezoelectric layer, and a top electrode, wherein the piezoelectric layer is positioned between the bottom electrode and the top electrode..
Rapid Diagnostek


04/28/16
20160116318 

Coupling element, ultrasonic transducer and ultrasonic flow meter


A coupling element for an ultrasonic transducer, which comprises a first recess provided for the arrangement of a piezoelectric element and comprising a terminal base surface in which an ultrasound signal generated by the piezoelectric element can be fed into the coupling element. The coupling element comprising inside the first recess one or a plurality of stops, each of which comprises at least one stop surface which extends along a plane, the plane extending parallel to the base surface of the first recess, and there being defined between this plane and the base surface a space for accommodating material for an acoustic adaptation layer.
Endress+hauser Flowtec Ag


04/28/16
20160115081 

Low temperature, nanostructured ceramic coatings


A substrate subject to degradation at temperatures above 100° c. Is coated with a nanostructured ceramic coating having a thickness in excess of 100 nm, formed on a surface of the substrate, wherein a process temperature for deposition of the nanostructured coating does not exceed 90° c.
The Research Foundation For The State University Of New York


04/28/16
20160114764 

Method and device for detecting rain on a windshield


In a method for detecting rain on a windshield, whose degree of wetting is determined with at least one sensor value, it is provided that the sensor value is determined piezoelectrically, wherein vibrations on the windshield are detected, which change depending on the degree of wetting or raindrops hitting the windshield. As a result, the entire windshield serves as a detection surface, thereby yielding a high accuracy..
Hella Kgaa Hueck & Co.


04/28/16
20160114579 

Liquid discharge apparatus and control liquid discharge apparatus


A liquid discharge apparatus includes a piezoelectric element in which a drive signal is applied and which is displaced to eject a liquid; a zeroth wire of a zeroth potential; a first wire of a first potential that is higher than the zeroth potential; a second wire of a second potential that is higher than the first potential; and a connection path selecting section that electrically connects one end of the piezoelectric element to the zeroth wire, the first wire, or the second wire in response to a voltage of a source drive signal that controls the voltage of the drive signal and a hold voltage of the piezoelectric element. Here, a first potential difference from the zeroth potential to the first potential is different from a second potential difference from the first potential to the second potential..
Seiko Epson Corporation


04/28/16
20160114492 

Robot


A robot includes a first arm unit and a second arm unit. The robot includes a first drive part provided within the first arm unit and rotating the first arm unit about a first axis, and a second drive part provided within the first arm unit and rotating the second arm unit about a second axis.
Seiko Epson Corporation


04/28/16
20160114441 

Device for generating a rotatory ultrasonic vibration on a tool


A device adapted for generating a rotatory ultrasonic vibration on a tool that includes a first part which is adapted for the rotationally fixed connection of the device to a spindle of a machine tool that rotates about an axis of rotation, and a second part which is adapted for the rotationally fixed connection of the device to a tool. The device also includes a claw coupling which is configured to connect the first and second parts for rotation with one another and has a form fit of at least one first flank on the first part and at least one second flank, lying opposite the first flank, on the second part.
Technische Universität München


04/28/16
20160114355 

Ultrasound vibration device, manufacturing ultrasound vibration device, and ultrasound medical apparatus


An ultrasound vibration device includes a stacked transducer in which a plurality of piezoelectric substances and a plurality of electrode plates are stacked, an external shape of the stacked transducer being in a polygonal prism shape, insulators, a case main body housing the piezoelectric transducer and the insulators, a pressurizing member screwed and fastened to an opening portion of the case main body to pressurize and fix the stacked transducer and the insulators in the case main body, and a plurality of positioning member insertion sections into which a positioning member is inserted, the positioning member retaining the stacked transducer and the insulators in the polygonal prism shape and positioning the stacked transducer in a position where the stacked transducer is non-contact with an inner wall of the case main body and one ends of the insulators are in contact with the pressurizing member.. .
Olympus Corporation


04/28/16
20160114354 

Asymmetric bender bar transducer


Apparatus and techniques are described, such as for obtaining information indicative of an acoustic characteristic of a formation, including using a transducer assembly, comprising a base plate, a first piezoelectric slab and a second piezoelectric slab. The base plate includes a first region extending axially in a first direction beyond the first and second piezoelectric slabs along a specified axis of the base plate and a second region extending axially in a second direction, opposite the first direction, beyond the first and second piezoelectric slabs.
Halliburton Energy Services, Inc.




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

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