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| Number | Title | Issue Date |
| 8093782 | Specialized, high performance, ultrasound transducer substrates and related method thereof Backing substrates for reducing parasitic echoes produced within a ultrasonic transducer are provided comprising a polymeric material, for example, an epoxy having a glass transition temperature (Tg) ranging from about 10 to 50° C.; or an epoxy having an... | 01/10/2012 |
| 7705519 | Acoustic backing composition, ultrasonic probe and ultrasonic diagnostic apparatus Disclosed is an acoustic backing composition comprising an ethylene-vinyl acetate copolymer containing 20 to 80% by weight of the vinyl acetate units and a filler contained in the ethylene-vinyl acetate copolymer. ... | 04/27/2010 |
| 7550900 | Acoustic resonator device Acoustic resonator device (1) includes an active element (6) and a support provided with a membrane (5). The active element (6) is provided with at least one piezoelectric layer (10) and is surmounted by a multilayer stack (12 | 06/23/2009 |
| 7439656 | Method for designing ultrasonic transducers with acoustically active integrated electronics Ultrasonic transducer including a multi-layer transformer arranged between a backing block and piezoelectric layer on each of which at least one matching layer is arranged. The transformer includes a substrate having an electronic circuit, one or more acoustically a... | 10/21/2008 |
| 7432638 | Acoustic backing composition, ultrasonic probe and ultrasonic diagnostic apparatus Disclosed is an acoustic backing composition comprising an ethylene-vinyl acetate copolymer containing 20 to 80% by weight of the vinyl acetate units and a filler contained in the ethylene-vinyl acetate copolymer. ... | 10/07/2008 |
| 7425787 | Acoustic galvanic isolator incorporating single insulated decoupled stacked bulk acoustic resonator with acoustically-resonant electrical insulator Embodiments of the acoustic galvanic isolator comprise a carrier signal source, a modulator connected to receive an information signal and the carrier signal, a demodulator, and an electrically-isolating acoustic coupler connected between the modulator and the demod... | 09/16/2008 |
| 7400079 | Ultrasonic probe An ultrasonic probe includes an ultrasonic transducer which is formed by sequentially laminating an acoustic lens, an acoustic matching layer, a piezoelectric element, and a backing member. The backing member arranged on a surface opposed side of the acoustic matchi... | 07/15/2008 |
| 7391143 | Support and decoupling structure for an acoustic resonator, acoustic resonator and corresponding integrated circuit An acoustic resonator assembly includes a layer of high-acoustic-impedance material and a layer of low-acoustic-impedance material made of a low-electrical-permittivity material. This assembly may support the resonator over an interconnect layer or act as a decoupli... | 06/24/2008 |
| 7391142 | Acoustic resonator support, acoustic resonator and corresponding integrated circuit A support 7 for an acoustic resonator 4 includes at least one bilayer assembly having a layer of high acoustic impedance material 11 and a layer of low acoustic impedance material 12 made of material having a low electrical permittivity. | 06/24/2008 |
| 7358645 | Backing, transducer array and method for thermal survival Backing blocks, transducer arrays and methods are provided for thermal cycle survivability. By decoupling a portion of the backing block from a case used to contain the transducer stack, the greater thermal expansion properties of most backing blocks may be minimize... | 04/15/2008 |
| 7358650 | Ultrasound probe An ultrasound probe obtained by arranging, on a backing 10, a plurality of transducers each of which comprising a piezoelectric transducer 20, an acoustic lens 40, and an acoustic matching layer provided between the piezoelectric transducer 2... | 04/15/2008 |
| 7332848 | Method of damping actuator and actuator An actuator includes a piezoelectric element, and a displacement enlargement mechanism which has a movable portion configured to be displaced as the piezoelectric element is displaced and enlarges an amount of displacement of the piezoelectric element. A restraint m... | 02/19/2008 |
| 7321183 | Film bulk acoustic resonator and method for manufacturing the same A film bulk acoustic resonator, includes first to fourth insulator patterns disposed apart from each other. The third and fourth insulator patterns are disposed opposite the second and first insulator patterns in relation to the first and second insulating patterns,... | 01/22/2008 |
| 7288069 | Ultrasonic probe and method of manufacturing the same An ultrasonic probe is characterized in that a piezoelectric member 111 formed of solution-based single-crystal containing at least plumbum titanate is sandwiched between resin layers 113 and 115 having smaller acoustic impedance than the piezoe... | 10/30/2007 |
| 7286964 | Methods for monitoring structural health conditions Methods and recordable media for monitoring structural health conditions. The present invention provides a method for interrogating a damage of a host structure using a diagnostic network patch (DNP) system having patches. An interrogation module partitions the plur... | 10/23/2007 |
| 7284431 | Geophone An improved system for sensing ground motion is provided. The system generally comprises a shell and a case within the shell and connected by a suspension. The mass of the case is greater than the mass of the shell. An electrode within the shell detects relative mot... | 10/23/2007 |
| 7236616 | Biometric piezo scanner A piezoelectric thin film sensor array is used to scan and capture biometric data, for example, a fingerprint image. In one embodiment, a multi-layer structure includes a PVDF layer in between two conductor grids arranged orthogonally to one another. Urethane can be... | 06/26/2007 |
| 7204142 | Liquid level detecting apparatus A guide pipe is formed from a metal material, and its internal cross section has a circular shape whose diametric dimension gradually becomes smaller with a distance from an ultrasonic sensor. That is, the guide pipe is formed so that a route for transmitting an ult... | 04/17/2007 |
| 7196971 | Method and apparatus for damping an ultrasonic transducer suitable for time of flight ranging and level measurement systems A method and apparatus for damping an ultrasonic transducer suitable for time of flight ranging and level measurement systems. The ultrasonic transducer comprises a damping component which absorbs vibrations in the transducer to reduce the ringing effect. The dampin... | 03/27/2007 |
| 7190105 | Sound or ultrasound sensor A sound or ultrasound sensor having a radiation characteristic with a preferably small beam angle and producing very little interference signals, including a pot-shaped housing closed at its bottom end by a floor, a piezoelectric element for producing and/or receivi... | 03/13/2007 |
| 7190103 | Matching circuit for megasonic transducer device A method and apparatus for matching impedance magnitude and impedance phase for an acoustic-wave transducer load and an RF power source. The acoustic-wave transducer load has a load impedance magnitude and phase. The RF power source has a source impedance magnitude ... | 03/13/2007 |
| 7168633 | Spraying device A spraying device comprises a spraying plate, having a plurality of tiny holes, a vibrating element, set on a periphery of the spraying plate, and driving a vibrating movement thereof, a wrapping layer, made of soft material and tightly surrounding the vibrating ele... | 01/30/2007 |
| 7161280 | Ultrasonic transducer and method of joining an ultrasonic transducer The invention concerns an ultrasonic transducer, which is assembled from several parts. These parts are a protecting plate, a piezoelectric disc and a housing. Joining of the parts for transducers are normally done by means of TIG welding or laser welding, but these... | 01/09/2007 |
| 7139159 | Sensor device The invention relates to a sensor device, particularly a limit or threshold value sensor device with a sensor system for detecting an external measured quantity, a switching device being provided for switching a load circuit. The known design of the switching... | 11/21/2006 |
| 7130436 | Helmet with built-in speaker system and speaker system for helmet A speaker system is installed in a helmet, and includes a pair of piezoelectric speakers, frames supporting the speakers around the peripheral edges thereof, and laminated films for protecting the piezoelectric film speakers. Each of the frames has its longer sides ... | 10/31/2006 |
| 7126257 | Piezoelectric ceramic-reinforced metal matrix composites Composite materials comprising piezoelectric ceramic particulates dispersed in a metal matrix are capable of vibration damping. When the piezoelectric ceramic particulates are subjected to strain, such as the strain experienced during vibration of the material, they... | 10/24/2006 |
| 7117742 | Sensors and systems for structural health monitoring Sensors and systems for monitoring structural health conditions. The present invention provides a device for monitoring structural health conditions including a dielectric substrate, a piezoelectric device for actuating and/or sensing Lamb waves, a molding layer dep... | 10/10/2006 |
| 7109642 | Composite piezoelectric apparatus and method The present invention relates to composite piezoelectric apparatus, transducers and methods of manufacture. In an embodiment, a composite piezoelectric apparatus has a sacrificial base and pillar array. Different volume percents of piezoelectric material are used in... | 09/19/2006 |
| 7105986 | Ultrasound transducer with enhanced thermal conductivity A composite structure of a backing material with enhanced conductivity for use in a transducer is presented. The composite structure includes a plurality of layers of backing material alternatingly arranged with a plurality of thermal conductive elements, wherein th... | 09/12/2006 |
| 7103960 | Method for providing a backing member for an acoustic transducer array A method is provided for making a backing layer for an ultrasonic matrix array transducer useful in medical imaging and the like. A conductive grid is provided which includes a plurality of micro-contacts each joined together by a common base so that spaces are prov... | 09/12/2006 |
| 7093775 | Fragrance-dispensing shower head A fragrance dispensing shower head apparatus includes a shower head including proximal and distal end portions and a central bore extending therebetween. The proximal end portion has a threaded inner surface. The shower head further includes a wire-mesh screen trave... | 08/22/2006 |
| 7082810 | Gas sensor A gas sensor (10) including a measurement chamber (28) into which a gas GS is flown and a detection element main body (40) facing the measurement chamber (28). The detection element main body (40) includes an element case 42, | 08/01/2006 |
| 7084552 | Anisotropic acoustic impedance matching material A piezoelectric transducer comprises a piezoelectric layer and an adjacent layer of an acoustic impedance matching material having a plane face comprising a homogenous matrix material with embedded fibers, clusters of fibers, or rods of another material oriented per... | 08/01/2006 |
| 7069786 | Ultrasonic transducer structures The present invention provides an ultrasonic transducer structure, comprising a first ultrasonic transducer element (1), arranged and operable for transmitting an ultrasonic signal from a front face of the structure, damping material (2) at the back of... | 07/04/2006 |
| 7061163 | Ultrasonic transducer and ultrasonic flowmeter An ultrasonic transducer according to the present invention includes: a piezoelectric body 4 to set up ultrasonic vibrations; an acoustic matching layer 3 made of a material with a density of 50 kg/m3 to 1,000 kg/m3 and an acousti... | 06/13/2006 |
| 7055389 | Acoustic coupling with a fluid retainer An apparatus examines the internal structure of an object disposed substantially in a medium such as air, which essentially totally reflects acoustic signals in the 1-200 MHz frequency range. The apparatus has an acoustic transducer that emits and receives acoustic ... | 06/06/2006 |
| 7042136 | Piezoelectric thin-film element and a manufacturing method thereof To provide a piezoelectric thin-film element small in leak current between electrode metal films and its manufacturing method are presented, the piezoelectric thin-film element includes at least one unit laminated body composed of a piezoelectric thin-film having a ... | 05/09/2006 |
| 7009326 | Ultrasonic vibration apparatus use as a sensor having a piezoelectric element mounted in a cylindrical casing and grooves filled with flexible filler An ultrasonic vibration apparatus includes a casing having a vibration face, a piezoelectric element mounted in the casing, and a disk-like vibration plate supported at a position along a concentric circle differentiating two regions, an inner region and an outer re... | 03/07/2006 |
| 7000381 | Device for exhaust gas after treatment of motor vehicles, in particular, diesel engine vehicles A device for exhaust gas after treatment of motor vehicles has a pump device for supplying a solution to the exhaust gas manifold. The pump device is a metering pump having a connecting part that opens into the exhaust gas manifold. The pump device has a piston and ... | 02/21/2006 |
| 6995500 | Composite backing layer for a downhole acoustic sensor An acoustic sensor for use in a downhole measurement tool is provided. The acoustic sensor includes a piezoelectric transducer and a backing layer having at least one powder material disposed in an elastomeric matrix material. In various exemplary embodiments, the b... | 02/07/2006 |
