Popular terms

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

Follow us on Twitter
twitter icon@FreshPatents

Web & Computing
Cloud Computing
Ecommerce
Search patents
Smartphone patents
Social Media patents
Video patents
Website patents
Web Server
Android patents
Copyright patents
Database patents
Programming patents
Wearable Computing
Webcam patents

Web Companies
Apple patents
Google patents
Adobe patents
Ebay patents
Oracle patents
Yahoo patents

[SEARCH]

Piezo patents



      

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




Date/App# patent app List of recent Piezo-related patents
02/04/16
20160037678 
 Information handling system thermal control with adaptive non-rotational cooling devices patent thumbnailnew patent Information handling system thermal control with adaptive non-rotational cooling devices
A tablet information handling system manages thermal conditions with selective installation of either a wireless wide area network interface card or an air moving device in an internal communication link card slot, such as an m.2 card slot. If an air moving device is installed, then greater thermal demands may be managed at the tablet information handling system, such as greater cpu clock speeds for a given cpu, internal housing or skin temperature.
Dell Products L.p.


02/04/16
20160037274 
 Hearing prosthesis with a piezoelectric actuator patent thumbnailnew patent Hearing prosthesis with a piezoelectric actuator
A hearing prosthesis including an actuator. The actuator includes a material that deforms in response to an electrical signal and that is adapted to, upon implantation in a recipient, transmit vibrations representative of a sound signal to an organ of the recipient, wherein the material is at least partially exposed to at least one of body tissue and fluid of the recipient..
Cochlear Limited


02/04/16
20160036580 
 Mobile communication device configured with a single crystal piezo resonator structure patent thumbnailnew patent Mobile communication device configured with a single crystal piezo resonator structure
A mobile communication system. The system has a housing comprising an interior region and an exterior region and a processing device provided within an interior region of the housing.
Akoustis, Inc.


02/04/16
20160036416 
 Elastic wave device with integrated inductor patent thumbnailnew patent Elastic wave device with integrated inductor
An elastic wave device includes an interdigital transducer (idt) electrode disposed on an upper surface of a piezoelectric substrate, a wiring electrode disposed on the upper surface of the piezoelectric substrate and connected to the idt electrode, and a first insulator layer disposed on the upper surface of the piezoelectric substrate. The first insulator layer seals the idt electrode and the wiring electrode and includes a first resin and a first filler.
Skyworks Panasonic Filter Solutions Japan Co., Ltd.


02/04/16
20160036119 
 Hybrid piezoelectric device / radio frequency antenna patent thumbnailnew patent Hybrid piezoelectric device / radio frequency antenna
A hybrid antenna including a piezoelectric device and an rf radiator. The hybrid antenna is capable of providing both rf and piezoelectric device functionality, e.g., radio frequency transmission/reception capabilities for radio frequency devices as well as sound-producing and/or energy-scavenging functionality via the piezoelectric device.
Fitbit, Inc.


02/04/16
20160035968 
 Producing  suspension board with circuit patent thumbnailnew patent Producing suspension board with circuit
A method for producing a suspension board with circuit includes a first step of preparing a suspension board including a metal supporting layer, a base insulating layer disposed at one surface in a thickness direction of the metal supporting layer, and a conductive pattern disposed at one surface in the thickness direction of the base insulating layer and having a terminal portion; a second step of connecting a piezoelectric element to the terminal portion by solder and heating the solder at a temperature of not less than a depolarization temperature allowing polarization of the piezoelectric element to start disappearing; and a third step of applying a voltage to the piezoelectric element so as to repolarize the piezoelectric element connected to the terminal portion.. .
Nitto Denko Corporation


02/04/16
20160035967 
 Implantable wireless accoustic stimulators with high energy conversion efficiencies patent thumbnailnew patent Implantable wireless accoustic stimulators with high energy conversion efficiencies
Receiver-stimulator with folded or rolled up assembly of piezoelectric components, causing the receiver-stimulator to operate with a high degree of isotropy are disclosed. The receiver-stimulator comprises piezoelectric components, rectifier circuitry, and at least two stimulation electrodes.
Ebr Systems, Inc.


02/04/16
20160035966 
 Manufacturing  piezoelectric element, manufacturing  liquid discharging head, and manufacturing  liquid discharging apparatus patent thumbnailnew patent Manufacturing piezoelectric element, manufacturing liquid discharging head, and manufacturing liquid discharging apparatus
A manufacturing method of a piezoelectric element includes forming an adhesive layer of a lead electrode on a piezoelectric element main body of a vibration plate, forming a metallic layer of the lead electrode on the adhesive layer, removing the metallic layer to leave the adhesive layer in a portion that corresponds to an extended electrode of the lead electrode using etching, patterning the remaining adhesive layer as individual extended electrodes that correspond to the piezoelectric element main body using etching, joining a protective substrate onto the vibration plate in a state in which the piezoelectric element main body is accommodated inside an accommodation hollow section and the extended electrode is positioned further on an outer side of the vibration plate than the protective substrate, layering and forming a section of the wiring on the protective substrate and the extended electrode, and patterning the wiring as individual wiring for each extended electrode using etching.. .
Seiko Epson Corporation


02/04/16
20160035965 
 Pzt-based piezoelectric ceramic material and piezoelectric device using the same patent thumbnailnew patent Pzt-based piezoelectric ceramic material and piezoelectric device using the same
Embodiments of the invention provide a pzt-based piezoelectric ceramic material represented by the following formula: pbx(zrytiz)m1-y-zo3, which is an abo3 perovskite crystal material including a crystal lattice a-site and a crystal lattice b-site, x, y, and z satisfying the following equations, respectively: 0.830≦x≦0.964, 0.43≦y≦0.55, and 0.43≦z≦0.55, and m being a metal element having a valence of +5 or +6, and a piezoelectric device using the same. According to at least one embodiment, since pb is not excessively added, a pb or pbo phase deteriorating piezoelectric properties is not formed in a pzt-based piezoelectric material, such that excellent electric, dielectric, and piezoelectric properties are exhibited..
Samsung Electro-mechanics Co., Ltd.


02/04/16
20160035963 
 Piezoelectric device,  and ultrasonic device, as well as probe, and electronic apparatus patent thumbnailnew patent Piezoelectric device, and ultrasonic device, as well as probe, and electronic apparatus
A piezoelectric device includes a base, a vibration film, and a piezoelectric element. The base of the piezoelectric device has at least one opening.
Seiko Epson Corporation


02/04/16
20160035961 
new patent

Dielectric element and piezoelectric element


A dielectric element includes a substrate, a first electrode layer on this substrate, a dielectric layer on the first electrode layer, and a second electrode layer on the dielectric layer. The first electrode layer contains lanthanum nickelate.
Panasonic Corporation


02/04/16
20160035960 
new patent

Acoustic resonator and manufacturing the same


An acoustic resonator is provided in which loss of acoustic waves in a transverse direction may be reduced through a cavity formed in an acoustic resonance unit including a first electrode, a piezoelectric layer, and a second electrode, and in which acoustic waves in a longitudinal direction may be reduced by forming an air gap between the acoustic resonance unit and a substrate. Whereby, a quality factor may be improved..
Samsung Electro-mechanics Co., Ltd.


02/04/16
20160035959 
new patent

Manufacturing a piezoelectric layer arrangement and corresponding piezoelectric layer arrangement


A manufacturing method is provided for a piezoelectric layer arrangement and a corresponding piezoelectric layer arrangement. The manufacturing method includes the steps: depositing a first electrode layer on a substrate; depositing a first insulating layer on the first electrode layer; forming a through opening in the first insulating layer to expose the first electrode layer within the through opening; depositing a piezoelectric layer on the first insulating layer and on the first electrode layer within the through opening; back-polishing the resulting structure to form a planar surface, on which a piezoelectric layer area, surrounded by the first insulating layer, is exposed; and depositing and structuring a second electrode layer on the first insulating layer, which contacts the piezoelectric layer area..
Robert Bosch Gmbh


02/04/16
20160034073 
new patent

Touch panel and touch type input device


A touch panel that includes a film having piezoelectric properties, the film having a first principal plane and a second principal plane. A divided electrode is on the first principal plane, and a uniform ground electrode is on the second principal plane and arranged opposite to the divided electrode on the first principal plane..
Murata Manufacturing Co., Ltd.


02/04/16
20160033461 
new patent

Multi-functional piezo actuated flow controller


Multi-functional piezo-actuated flow control systems and methods for use in gas exchange analysis systems such as photosynthesis measurement systems. A fluid valve assembly module includes a housing structure including a plurality of ports and a plurality of fluid passageways interconnecting the ports, and a plurality of piezo-actuated valves in fluid communication with the fluid passageways, each valve including a piezo element that controls flow along a passageway, wherein the passageways and valves are arranged within the housing structure so as to define a fluid control module, which includes a flow swapping component, a flow splitting component and a flow pressurization component.
Li-cor, Inc.


02/04/16
20160033454 
new patent

Ultrasonic device, manufacturing the same, probe, and electronic apparatus


An ultrasonic device that has high accuracy with respect to frequency and sensitivity and that can achieve a reduction of crosstalk is provided. A substrate of an ultrasonic device has a first surface and a second surface on a side opposite to the first surface, and has a first opening and a second opening that are separated from each other by a wall portion.
Seiko Epson Corporation


02/04/16
20160033347 
new patent

Physical quantity sensor, pressure sensor, altimeter, electronic device, and moving object


A physical quantity sensor includes a substrate that includes a recessed portion which is open on one face of the substrate, a diaphragm portion that includes a bottom portion of the recessed portion and is flexibly deformed by receiving pressure, a piezoresistive element that is arranged in the diaphragm portion, and a stepped portion that is arranged along the periphery of the diaphragm portion on the other face of the substrate and protrudes from the diaphragm portion in the thickness direction of the diaphragm portion by a height which is smaller than the depth of the recessed portion.. .
Seiko Epson Corporation


02/04/16
20160033256 
new patent

Electronic interface for lvdt-type pressure transducers using piezoresistive sensors


Aspects of the present disclosure relate to a method that includes receiving, at first and second input terminals, first and second input voltages and maintaining the direction of the first and second input voltages and doubling the first and second input voltages. The method also includes measuring, by a wheatstone bridge, an applied physical parameter; outputting, to a capacitor, and to first and second operational amplifiers, first and second signals substantially indicative of the physical parameter; reducing, by the capacitor, a dc component of the first and second signals; amplifying, by the first and second operational amplifiers, the first and second signals; and adjusting, by a gain resistor, a differential output between first and second output voltages that correspond to the first and second signals output from the wheatstone bridge.
Kulite Semiconductor Products, Inc.


02/04/16
20160033001 
new patent

Electric power steering isolator


Electric power steering systems and a method for controlling an electric power steering system are provided. The method, for example, includes, but is not limited to, determining, by a controller, a speed of a vehicle based upon data from a sensor, and adjusting, by the controller, a stiffness of an isolator in an electric power steering system via at least one piezoelectric device embedded in the isolator based upon the determined speed of the vehicle..
Gm Global Technology Operations Llc


02/04/16
20160032856 
new patent

Method and dynamic surface control of a piezoelectric fuel injector during rate shaping


A system and method are provided for monitoring a pressure of fuel supplied to the fuel injector, and providing a control input voltage to the piezostack in response to the pressure to cause the injector to provide a fuel injection having a desired shape. In the system and method, providing a control input voltage includes applying a model-based algorithm to the pressure to determine the control input voltage..
Purdue University


02/04/16
20160032571 
new patent

Piezoelectric touch-controlled faucet


The present invention relates to a piezoelectric touch-controlled faucet, falling under the technical field of automatic faucets. The faucet comprises a first end connected to a water supply source, a second end having a water outlet for the faucet, and a passage arranged between the first end and the second end for directing the water from the first end to the second end.
Artika For Living Inc.


02/04/16
20160031215 
new patent

Method for manufacturing liquid jetting apparatus and liquid jetting apparatus


A method for manufacturing a liquid jetting apparatus, which is provided with: a flow passage formation member including a pressure chamber, and a piezoelectric actuator having a vibration film provided on the flow passage formation member, a piezoelectric film arranged on the vibration film to correspond to the pressure chamber, first and second electrodes arranged on different surfaces of the piezoelectric film, a first protective film covering the piezoelectric film, a wire connected to the second electrode, and a second protective film covering the wire, includes: forming a first protective film on the vibration film to cover the piezoelectric film and the second electrode; forming the wire and the second protective film to cover the wire with the first protective film covering the piezoelectric film and the second electrode; and removing a part, of the first protective film, that overlaps with the second electrode, after forming the second protective film.. .
Brother Kogyo Kabushiki Kaisha


02/04/16
20160031213 
new patent

Inkjet head having a plurality of lid members connected to nozzles and an inkjet apparatus having the inkjet head


An inkjet head includes a substrate, a piezoelectric unit disposed on the substrate and including a plurality of piezoelectric elements arranged along a surface of the substrate, and a plurality of pressure chambers, each of the pressure chambers being formed between two adjacent piezoelectric elements, a plurality of lid members, each of which is disposed on two adjacent piezoelectric elements and has a hole connected to one of the pressure chambers, and a nozzle plate disposed on the plurality of lid members and having a plurality of nozzles through which the liquid is discharged, each of the nozzles being connected to one of the holes of the lid members.. .
Toshiba Tec Kabushiki Kaisha


02/04/16
20160031212 
new patent

Liquid discharge head, liquid discharge device, and liquid discharge apparatus


A liquid discharge head includes a plurality of nozzles to discharge liquid droplets; a plurality of piezoelectric elements, each corresponding to a corresponding one of the plurality of nozzles and disposed along a nozzle alignment direction along which the plurality of nozzles is aligned; an actuator member on which the plurality of piezoelectric elements is aligned; and wiring disposed along the nozzle alignment direction, connected to the plurality of piezoelectric elements, and included in the actuator member, the wiring including a first wiring pattern to which the plurality of piezoelectric elements is connected, the first wiring pattern including a near side proximal to and a far side distal from a source of a drive signal for the piezoelectric elements. The near side and the far side are connected via a second wiring pattern..
Ricoh Company, Ltd.


02/04/16
20160030978 
new patent

Vibration generating device


There is provided a vibration generating device including: a housing having an internal space and including installation bars; a vibration member having through holes which are formed in both end portions thereof and which is fixedly attached to the installation bars by allowing upper end portions of the installation bars to penetrate through the through holes; a piezoelectric element installed on the vibration member; and a fixing unit fixing the vibration member to the installation bars.. .
Samsung Electro-mechanics Co., Ltd.


02/04/16
20160030965 
new patent

Nozzle device with a plurality of piezoelectric plate module


A nozzle device includes an upper cover module having a cavity, a plurality of stacked piezoelectric plate modules, a plug module, and a lower cover module. Each piezoelectric plate module includes a substrate, a piezoelectric material, an electrical connection, an upper electrode, and a lower electrode.
Chung Hua University


02/04/16
20160030177 
new patent

Method and measuring contraction characteristics of engineered heart tissue constructs


The invention is directed to a novel method for measuring contraction characteristics of engineered heart tissue constructs (16) which is based on the mechanical coupling of the construct (16) to a support element (8) which comprises or is mechanically coupled to a piezoelectric element (10). An apparatus (1) for carrying out the method of the invention is also provided..
UniversitÄtsklinikum Hamburg-ep-pendorf


02/04/16
20160030160 
new patent

Piezoelectric sensor for vision correction


The present invention will provide a vision correction device which utilizes the movements of the eye to correct the focus of the user without the need of surgical procedures. More specifically, the present invention will detect the movement of the ciliary muscle and adaptively modify the shape of an artificial lens positioned inside or outside of the eye to adjust the focus of the lens.

01/28/16
20160028374 

Apparatus and tuning a resonance frequency


There are disclosed various apparatuses and methods for tuning a resonance frequency. In some embodiments there is provided an apparatus (200) comprising at least one input electrode (202, 204) for receiving radio frequency signals; a graphene foil (210) for converting at least part of the radio frequency signals into mechanical energy; at least one dielectric support element (212) to support the graphene foil (210) and to space apart the at least one input electrode (202, 204) and the graphene foil (210).
Nokia Technologies Oy


01/28/16
20160028372 

Acoustic wave elements and antenna duplexers, and modules and electronic devices using same


An acoustic wave element according to certain examples includes a piezoelectric body, an interdigital transducer (idt) electrode disposed above the piezoelectric body, and a connection electrode disposed above the piezoelectric body and connected to the idt electrode. A first insulation layer covers the connection electrode, and a second insulation layer covers the idt electrode.
Skyworks Panasonic Filter Solutions Japan Co., Ltd.


01/28/16
20160028371 

Filter and duplexer


A filter includes: piezoelectric thin film resonators, each including 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, and not located in a center region of the resonance region, the resonance region being a region where the lower electrode and the upper electrode face each other across the piezoelectric film, wherein at least two piezoelectric thin film resonators out of the piezoelectric thin film resonators have different widths of the insertion films within the resonance regions.. .
Taiyo Yuden Co., Ltd.


01/28/16
20160028366 

Duplexer


A duplexer includes a first band-pass filter and a second band-pass filter with a pass-band lower than the first band-pass filter. The first band-pass filter includes an unbalanced surface acoustic wave filter.
Murata Manufacturing Co., Ltd.


01/28/16
20160028329 

Electric door release powered by an energy harvester


A piezoelectric energy harvester system for collecting kinetic energy is provided, wherein the kinetic energy is converted into electrical energy, and wherein at least a portion of the converted electrical energy is utilized to operate a load. The system comprises an energy input portion and an energy harvesting portion.
Hanchett Entry Systems, Inc.


01/28/16
20160027996 

Method for etching piezoelectric film and manufacturing piezoelectric element


In a method for etching a piezoelectric film and a manufacturing method thereof, a piezoelectric film is formed on a substrate on which a lower electrode is formed, a metal film having a thickness of 20 nm to 300 nm is formed, a patterned resist film is formed, the metal film is etched with a first etchant to which the piezoelectric film has etching resistance, and the piezoelectric film is etched with a second etchant to which the metal film has etching resistance.. .
Fujifilm Corporation


01/28/16
20160027993 

Lead titanate coating and preparing method thereof


The invention provides a lead titanate coating and a preparing method thereof. According to the method, mixed powder is sprayed on the surface of a matrix, and through polarization, the lead titanate coating is acquired.

01/28/16
20160027991 

Ultrasound transducer and ultrasound diagnostic apparatus


An ultrasound transducer that achieves broadband characteristics without degrading the sensitivity of the ultrasound transducer. Piezoelectric element (202) includes piezoelectric thin film (203), first electrode (204) that is disposed on a first surface of piezoelectric thin film (203) in a thickness direction of piezoelectric thin film (203), and second electrode (205) that is disposed on a second surface of piezoelectric thin film (203) in the thickness direction of piezoelectric thin film (203), and at least two of parameters of a spring constant, a viscosity coefficient, and a mass in an equivalent single damped oscillation model representing a structure of a diaphragm composed of each piezoelectric cell (200) are each set to a value that is different among the piezoelectric cells (200) such that a relationship between a driving frequency ratio and a phase in the diaphragm is substantially identical among the piezoelectric cells (200)..
Konica Minolta, Inc.


01/28/16
20160027989 

Robust piezoelectric fluid moving devices and methods


A method of making a piezoelectric fluid moving device, (e.g., a fan or synthetic jet actuator) includes forming at least a first electrode on a base substrate and disposing a spacer frame about the first electrode. A piezoelectric substrate is placed within the frame and over the first electrode.
Mide Technology Corporation


01/28/16
20160027988 

Piezoelectric membrane, piezoelectric device, and inkjet head


An inkjet head includes a substrate that defines a cavity in which ink is stored, a vibrating membrane that is supported by the substrate and that defines the cavity, and a piezoelectric device that is disposed on the vibrating membrane and that changes a volume of the cavity by displacing the vibrating membrane. The piezoelectric device includes a lower electrode, a piezoelectric membrane that is disposed on the lower electrode, and an upper electrode that is disposed on the piezoelectric membrane and that faces the lower electrode with the piezoelectric membrane interposed between the upper electrode and the lower electrode.
Rohm Co., Ltd.


01/28/16
20160027987 

Circuit assembly and controlling a piezoelectric transformer


A circuit assembly is used for controlling a piezoelectric transformer having an input capacitance in a first circuit branch. The circuit assembly also includes a second circuit branch for compensating for the input capacitance, preferably by means of a capacitive element, and a differential amplifier having two inputs.
Epcos Ag


01/28/16
20160026767 

Non-invasive nutrition monitor


An apparatus includes a sensor configured to detect a variable characteristic, the variation of the characteristic including variation indicative of an individual swallowing when the sensor is positioned in a neck area of the individual. The apparatus includes a wireless data communication interface configured to receive information related to the characteristic and transmit the information externally.
The Regents Of The University Of California


01/28/16
20160026299 

Touch input device and display device


A touch input device that includes a touch sensor and a control unit. The touch sensor includes a base material, a piezoelectric film, a plurality of first detecting conductors and a plurality of second detecting conductors.
Murata Manufacturing Co., Ltd.


01/28/16
20160026261 

Machine-learning based tap detection


An electronic device can be configured to enable a user to provide input via a tap of the device without the use of touch sensors (e.g., resistive, capacitive, ultrasonic or other acoustic, infrared or other optical, or piezoelectric touch technologies) and/or mechanical switches. Such a device can include other sensors, including inertial sensors (e.g., accelerometers, gyroscopes, or a combination thereof), microphones, proximity sensors, ambient light sensors, and/or cameras, among others, that can be used to capture respective sensor data.
Amazon Technologies, Inc.


01/28/16
20160025666 

Electric field sensor


According to embodiments, an electric field sensor having a sensor electrode is constructed of an electrically conductive material and having one or more outwardly protruding pillars. A screen electrode overlies the sensor electrode and has one or more openings which register with the one or more pillars on the sensor electrode.
U.s. Army Research Laboratory Attn: Rdrl-loc-i


01/28/16
20160025580 

Pressure sensor


An antenna unit having an antenna coil pattern is disposed in a casing. A sensor unit has a surface acoustic wave detecting element including a first sensing electrode that generates and receives a surface acoustic wave and a first reflector that reflects the surface acoustic wave, which are provided on a substrate configured of a piezoelectric material, and a sensor coil pattern electrically connected to the first sensing electrode and coupled to the antenna coil pattern.
Denso Corporation


01/28/16
20160025577 

Differential temperature surface sensor


This sensor, comprises: a first surface acoustic wave device, comprising a first piezoelectric substrate, formed from a (yxw/t)/φ/θ/ψ cut of a langasite crystal, where φ is equal to 0±5° is equal to 55±20° and ψ is equal to 32.5±7.5° and a first resonator having a first transducer laying on a first propagation surface and having two sets of interdigitated first electrodes formed from an electrically conductive material having a high melting temperature; and a second surface acoustic wave device, comprising a second piezoelectric substrate, formed from a (yxw/t)/φ/θ/ψ cut of a langasite crystal, where φ is equal to 0±5°, θ is equal to 5±20° and ψ is equal to 0±7.5°, and a second resonator having a second transducer laying on a second propagation surface and having two sets of interdigitated second electrodes formed from an electrically conductive material having a high melting temperature; said first and second surface acoustic wave devices being independent one from the other in terms of surface acoustic wave propagation.. .
Ecole Nationale Superieure De Mecanique Et Des Microtechniques


01/28/16
20160025547 

Magnetostrictive transmitter piezoelectric pickup sensor


A pickup sensor is disclosed for a magnetostrictive sensing instrument for sensing position of a magnetic field. The instrument includes an elongate tube having a near end and a distal end.
Orion Instruments, Llc


01/28/16
20160025513 

Multi-sensor pedometer


A multi-sensor pedometer is provided. The multi-sensor pedometer may include a first housing having a plurality of sidewalls forming an encased compartment.

01/28/16
20160023466 

Method of making piezoelectric film, making piezoelectric element, liquid discharge head, and image forming apparatus


A method of making a piezoelectric film includes forming a pbto3 (pto) coating film by applying a precursor liquid of a coating film containing pto as a main ingredient, forming a pto amorphous layer containing lead titanate as a main ingredient by heating the pto coating film at a heating temperature lower than a crystallization temperature at which the pto coating film is crystalized, and forming, on the pto amorphous layer, a piezoelectric thin-film layer having a main (100) orientation measured by x-ray analysis and containing lead zirconate titanate (pzt) as a main ingredient. The heating temperature is 300° c.
Ricoh Company, Ltd.


01/28/16
20160023257 

Rolling mill third octave chatter control by process damping


Control of third octave vibrations in a mill stand can be achieved using a high-speed piezoelectric assist coupled to a hydraulic gap cylinder to increase the damping of the roll stack. Vertical movements of the roll stack (e.g., the top work roll) can be determined through observation (e.g., measurement) of hydraulic fluid pressure of the hydraulic cylinder or entry tension of the metal strip.
Novelis Inc.


01/28/16
20160023245 

Portable electronic device using a tactile vibrator


Examples of portable electronic devices including a piezo actuated vibrator for providing tactile feedback to the user are described. Portable electronic devices according to the present disclosure may include tactile feedback devices, which may be driven by a piezoelectric actuator/vibrator that is operatively coupled to or embedded into the housing of a portable electronic device.
Apple Inc.


01/21/16
20160021465 

Speaker system


The present invention provides a speaker system comprising: an electroacoustic converter film composed of a polymeric composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material that exhibits viscoelasticity at normal temperature, and thin film electrodes formed on both surfaces of the polymeric composite piezoelectric body; and a driving circuit that attenuates signal intensity of an input signal from a signal source at a rate of 5 db to 7 db per octave and supplies the attenuated input signal to the electroacoustic converter film.. .
Fujifilm Corporation


01/21/16
20160021464 

Sound generator and electronic device using the same


A sound generator 30 includes a piezoelectric element 1, a vibrating body 3a, a reflection member 81, a reflection member 82, an opening 21, and an opening 22. The vibrating body 3a vibrates due to vibration of the piezoelectric element 1 and generates a sound.
Kyocera Corporation


01/21/16
20160020712 

Vibration wave motor


A vibration wave motor includes a vibration plate having a flat plate portion and protruding portions, a piezoelectric element that performs high-frequency vibration, a friction member contacting the protruding portions, and a first natural vibration mode and a second natural vibration mode, which are excited in the vibration plate by the high-frequency vibration, the vibration plate and the friction member moving relatively to each other, maximum amplitude generated on tip ends of the protruding portions by the first natural vibration mode is larger than maximum amplitude generated on tip ends of the protruding portions by the second natural vibration mode, a resonance frequency of the first natural vibration mode is lower than a resonance frequency of the second natural vibration mode, and amplitudes of the first natural vibration mode and the second natural vibration mode in a frequency range at a time of drive substantially coincide with each other.. .
Canon Kabushiki Kaisha


01/21/16
20160020711 

Multi-flap standing wave type ultrasonic motor


A multi-flap standing wave type ultrasonic motor, includes a rotor part, a stator part, a control circuit board, and a fixing attachment. The rotor part includes a flange, a rotor ring, and a shaft, the shaft and rotor ring being joined together through the flange by using a screw.

01/21/16
20160020710 

Vibration-type actuator and optical device using the same


A vibration-type actuator that enables to miniaturize and stabilize pressure state between a driven body and a vibration body. A pressurizing unit applies pressure force between projections on the vibration body and the driven body.
Canon Kabushiki Kaisha


01/21/16
20160020381 

Piezoelectric film and manufacturing same


(in formula (p), x represents a lead content, y represents a nb content (b site doping amount), z represents an oxygen content, a represents a zr/ti ratio, and y>0.14, and although x=1.0 and z=3 is standard, numerical values of x and z may deviate from 1.0 and 3, respectively, within a range where a perovskite structure can be adopted.). .

01/21/16
20160020380 

Piezoelectric polymer composite material


A piezoelectric polymer composite material includes piezoelectric particles dispersed in a matrix made from a polymer material. The piezoelectric particles is composed primarily of lead zirconate titanate having a general formula of pb(zrxti1-x)o3 and each of the piezoelectric particles contains a mixture of tetragonal crystals and rhombohedral crystals..
Fujifilm Corporation


01/21/16
20160020280 

Graphene device, methods of manufacturing and operating the same, and electronic apparatus including the graphene device


Example embodiments relate to a graphene device, methods of manufacturing and operating the same, and an electronic apparatus including the graphene device. The graphene device is a multifunctional device.
Samsung Electronics Co., Ltd.




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

Follow us on Twitter
twitter icon@FreshPatents

###

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


1.2122

5046

2 - 1 - 112