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7627936 |
Methods of manufacture of a transducer devices actuators
The present invention provides a method of manufacturing piezoelectric transducers that improves performance by reducing the mechanical losses in the component interfaces. The method involves the...
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7626319 |
Three-dimensional electroactive polymer actuated devices
Devices employing electroactive polymer actuators are disclosed. Acrylic dielectric material based actuators are optionally provided in which architectures are presented that allow for improved...
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7621873 |
Method and system to synchronize acoustic therapy with ultrasound imaging
Interference in ultrasound imaging when used in connection with high intensity focused ultrasound (HIFU) is avoided by employing a synchronization signal to control the HIFU signal. Unless the...
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7621028 |
Method for optimized dematching layer assembly in an ultrasound transducer
A method for manufacturing an acoustical stack for use within an ultrasound transducer comprises using a user defined center operating frequency of an ultrasound transducer that is at least about...
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7618551 |
Piezoelectric ceramic and method of manufacturing the same
Piezoelectric performance is improved in a piezoelectric ceramic having a perovskite-type crystal structure expressed by a general formula ABO 3 and the B-site element including niobium. The...
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7608976 |
Electroactive co-polymer systems and devices using the same
Electroactive P(VDF-CTFE) copolymers comprising CTFE in ranges between 5 mol % to 20 mol % are disclosed. The electroactive P(VDF-CTFE) copolymers are formed into films that exhibit strain values...
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7608975 |
Piezoelectrically-controlled integrated magnetic device
The magnetic device according to the invention is integrated on a substrate and comprises at least one element made of piezoelectric material associated with actuating electrodes, and at least one...
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7605966 |
Optical deflector
An optical deflector includes a mirror having a reflective plane; a torsion bar extending outwardly from an end of said mirror; a support surrounding said mirror; a first piezoelectric element, one...
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7605368 |
Vibration-type cantilever holder and scanning probe microscope
A vibration-type cantilever holder holds a cantilever opposed to a sample. The holder supports a main body part of the cantilever at only its base end so that a probe at the free end of the...
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7603950 |
Device for impact detection
A piezo cable is provided as an impact sensor, which allows up to four different measuring principles. In addition to the piezoelectric measurement, which causes a piezoelectric pulse in an impact,...
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7602098 |
Method for driving ion conducting actuator and ion conducting actuator
An ion conducting actuator includes a substrate which is made of a polymer material, and facing electrodes for generating an electric field. In the ion conducting actuator, a shape of the substrate...
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7602105 |
Piezoelectrically actuated ultrananocrystalline diamond tip array integrated with ferroelectric or phase change media for high-density memory
A compact large density memory piezoactuated storage device and process for its fabrication provides an integrated microelectromechanical (MEMS) and/or nanoelectromechanical (NEMS) system and...
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7602108 |
Micro-coextruded film modified with piezoelectric layers
Disclosed are layered films having a combination of piezoelectric layers that change dimension with applied voltage and non-piezoelectric layers. The layered structures can form a wide range of...
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7595006 |
Piezoelectric ceramic composition and piezoelectric actuator
A piezoelectric ceramic composition has the composition formula (Pb (a-b) Me b ){(Ni (1-c).d/3 Zn c.d/3 Nb 2/3 ) z Ti x Zr (1-x-z) }O 3 , wherein Me represents at least one element selected from...
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7595582 |
Resonator, ultrasonic die bonding head, and ultrasonic die bonding apparatus
A resonator 1 of the present invention includes: a vibrating member 13 holding an electronic component 12 and applying a vibration to the electronic component 12 ; and a depressing member ...
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7594309 |
Method of producing laminate-type piezoelectric element
A method of producing a laminate-type piezoelectric element, wherein a ceramic laminated body therein is formed through an intermediate laminated body-forming step of forming an intermediate...
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7592737 |
MEMS device comprising an actuator generating a hysteresis driving motion
A MEMS device is provided which includes a driven element having a series of teeth. The MEMS device includes a driving element operable to engage the driven element when the driving element is in a...
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7589450 |
Actuator device, liquid-jet head and liquid-jet apparatus
An actuator device includes: a layer provided on a single crystal silicon (Si) substrate, and made of silicon dioxide (SiO 2 ); at least one buffer layer provided on the layer made of silicon...
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7586234 |
Piezoelectric material and piezoelectric device
A piezoelectric material is expressed by a general formula (1) as follows: (Bi 1−x Ba x )(Fe 1−x Ti x )O 3 . . . (1), where x is greater than 0, but smaller than 1 (0<x<1).
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7586164 |
Micro-electro-mechanical system (MEMS) variable capacitor apparatuses, systems and related methods
Micro-electro-mechanical system (MEMS) variable capacitor apparatuses, system and related methods are provided. According to one embodiment, a method for varying the capacitance of two conductive...
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7586233 |
Ferroelastic ceramic-reinforced metal matrix composites
Composite materials comprising ferroelastic ceramic particulates dispersed in a metal matrix are capable of vibration damping. When the ferroelastic ceramic particulates are subjected to stress,...
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7581306 |
Method for producing a boundary acoustic wave device
In a method for producing a boundary acoustic wave device that includes a first medium, a second medium, and a third medium laminated in that order, and electrodes disposed at the interface between...
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7583564 |
Piezoelectric actuator and electronic equipment with piezoelectric actuator
To provide a piezoelectric actuator whereby impact resistance can be greatly improved without complicating the design or causing a reduction in drive efficiency. When a piezoelectric actuator 31 ...
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7576469 |
Sensor comprising a surface wave component
The invention relates to a sensor ( 4 ) comprising a surface wave component ( 2 ) containing information relating to the sensitivity of the sensor. Said information can be consulted by means of a...
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7572224 |
Ultrasonic probe and ultrasonic diagnostic apparatus
The present invention relates to an ultrasonic probe including a piezoelectric element, a first acoustic matching layer provided on the front face of the piezoelectric element and formed of a solid...
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7573177 |
Active/passive distributed absorber for vibration and sound radiation control
The active/passive absorber for extended vibration and sound radiation control includes principally two layers. The first layer has a low stiffness per unit area which allows motion in the...
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7568792 |
Piezoelectric element, actuator device, liquid-jet head and liquid-jet apparatus
Provided are an a piezoelectric element, an actuator device, a liquid-jet head and a liquid-jet apparatus which exhibit excellent displacement characteristics; the piezoelectric element is...
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7569976 |
Piezo-electric substrate and manufacturing method of the same
A piezo-electric substrate is mainly comprised of a base material and a film formed on one main surface of the base material. In the base material, the main surface on which the film is formed is a...
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7566531 |
Selective whole cell quartz crystal microbalance biosensors
Selective whole cell QCM biosensors are disclosed. Also disclosed are methods of making and using such whole cell QCM biosensors, e.g., to screen drugs and diagnose diseases.
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7566118 |
Print head with thin membrane
A microfabricated device and method for forming a microfabricated device are described. A thin membrane including silicon is formed on a silicon body by bonding a silicon-on-insulator substrate to...
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7564169 |
Piezo actuator and associated production method
A support assembly for a piezoelectric actuator ( 15 ), in particular for a piezoelectric actuator for driving an injector for the injection system of an internal combustion engine has a holder ( 5...
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7564172 |
Micro-electro-mechanical transducer having embedded springs
A micro-electro-mechanical transducer (such as a cMUT) is disclosed. The transducer has a base having a lower portion and an upper portion; a top plate disposed above the upper portion of the base...
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7562968 |
Piezoelectric element, liquid-jet head and liquid-jet apparatus
Disclosed are a piezoelectric element which can obtain a large strain with a low drive voltage, a liquid-jet head and a liquid-jet apparatus. The piezoelectric element includes: a lower electrode;...
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7564175 |
Tubular spring for actuator, and method for assembling the tubular spring
A tubular spring is provided for preloading a piezoelectric or magnetostrictive actuator for the actuation of fuel injection valves for fuel injection systems of internal combustion engines. The...
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7560852 |
Piezoelectric actuator, method for manufacturing piezoelectric actuator, and liquid transporting apparatus
A piezoelectric actuator includes a supporting member in which pressure chambers are formed, a vibration plate which is joined to a joining section of the supporting member, a piezoelectric layer...
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7557489 |
Embedded circuits on an ultrasound transducer and method of manufacture
One or more chips, integrated circuits, or semiconductors are embedded within a backing block. Planar sheets of backing material are formed with integrated circuits within holes in the sheets....
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7550901 |
Piezoelectric fan, cooling device containing same, and method of cooling a microelectronic device using same
A piezoelectric fan includes a piezoelectric actuator patch ( 110, 210, 310 ) and a blade ( 120, 220, 320 ) attached to the piezoelectric actuator patch. The blade has a hole ( 121, 127, 221 ) in...
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7541715 |
Electrochemical methods, devices, and structures
The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an...
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7538472 |
Programmable shims for manufacturing and assembly lines
Disclosed herein is a programmable shim 28 for positioning a work piece 12 comprising a first plate 30 ; an optional reference frame 32 ; and an actuator 34 in operative communication with...
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7538470 |
Monolithic nanoscale actuation
An apparatus including an actuator configured for controllable deflection, and also including a piezoresistive element integral to the actuator and having first and second piezoresistive portions...
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7535193 |
Five axis compensated rotating stage
A rotating stage assembly performs high precision rotational angle and position error correction by continuous sensing and correcting motor stage assembly errors. It performs these corrections, to...
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7531939 |
Communication device
Herein disclosed is a communication device which includes: a piezoelectric element having a structure formed by laminating piezoelectric substances and electrodes; obtaining means for obtaining...
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7521842 |
Magnetostrictive / piezo remote power generation, battery and method
A power generation device generates power by subjecting a composite of magnetostrictive material and piezo material to a magnetic field. The composite of magnetostrictive material and piezo...
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7518293 |
Piezoelectric thin-film element
A piezoelectric thin-film element formed with a niobate lithium potassium sodium thin-film having a well-developed Perovskite structure and having an excellent piezoelectric characteristic. The...
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7510669 |
Piezoelectric ceramic composition and piezoelectric component
A piezoelectric ceramic composition includes a bismuth layer compound containing at least Sr, Bi and Nb, e.g., (Sr 0.9 Nd 0.1 )Bi 2 Nb 2 O 9 , as a main component and 2 parts by weight or less...
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7509716 |
Method for manufacturing piezoelectric actuator
In a method for manufacturing a piezoelectric actuator, a ceramic sintered body is prepared and a size of the ceramic sintered body is adjusted in a thickness direction defined below by grinding...
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7511402 |
Polymer actuator
A polymer actuator is provided. The polymer actuator includes a plurality of gel/electrode complexes arranged in an electrolytic solution, wherein the gel/electrode complex is composed of a...
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7511409 |
Dielectric film element and composition
Provided is a piezoelectric-film-type electron emitter which enables suppression of reduction of electron emission quantity due to repeated use thereof, and which exhibits high durability. The...
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7508112 |
Ceramic multilayer component, method for the production thereof and retaining device
An electrical component includes a base. The base is made of a sintered ceramic, and at least one electrode that is inside the sintered ceramic. The at least one electrode has a surface that...
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7501737 |
Method and mechanism of PZT micro-actuator attachment for the hard disk driver arm
A fixture with a shaped molding may hold a first micro-actuator part and a second micro-actuator part in place for coupling while maintaining the structure of the first micro-actuator part. The...
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