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8183739 |
Electroactive polymer actuated devices
Devices employing electroactive polymer actuators are disclosed. The devices include pumps, valves, cameras (where electroactive polymer actuators control either one or both of zoom and focus),...
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8169122 |
Ultra sonic release of DNA or RNA
Method and apparatus for sonication in connection with preparing a cellular sample containing DNA or RNA for performance of polymerase chain reaction (PCR) or for other reasons where it is...
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8141216 |
Method of manufacturing ultrasound probe
An ultrasound probe comprising a transmitting piezoelectric layer, an electrode layer and a receiving piezoelectric layer laminated in that order, the ultrasound probe transmitting and receiving an...
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8110963 |
Ultrasonic transducer, ultrasonic transducer array, and ultrasonic device
An ultrasonic transducer is configured to transmit or receive ultrasonic waves. The ultrasonic transducer includes a vibrating member and a piezoelectric member coupled to the vibrating member. The...
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8102101 |
Piezoelectric sensors
A piezoelectric sensor having a plurality of electrodes deposited on a single surface of the dielectric medium is generally provided. The plurality of electrodes can define a plurality of...
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8072119 |
Piezoelectric component
A piezoelectric component with a body in which electrically connected transducer elements are realized is disclosed. The transducer elements are separated from each other by an essentially...
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8022595 |
Asymmetric composite acoustic wave sensor
A composite acoustic wave device provides improved protection from environmental factors while maintaining high electrical characteristics and dynamic range is provided. The device comprises a...
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7986198 |
Frequency-variable acoustic thin film resonator, filter and communication apparatus using the same
An acoustic thin film resonator including: a first piezoelectric thin film 101; a pair of primary electrodes 103 and 104 for applying an electric signal, which are formed on the first piezoelectric...
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7982366 |
Ultrasound transducer with a dumbbell-shaped chamber
An ultrasound transducer has a cup-shaped casing. The cup-shaped casing has a sidewall. A cross section of an inner surface of the sidewall being perpendicular to a central axis of the ultrasound...
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7978025 |
Film bulk acoustic resonator, filter, communication module and communication device
There is provided a film bulk acoustic resonator which has a substrate, a lower electrode formed on the substrate, a piezoelectric membrane formed on the lower electrode, an upper electrode formed...
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7977924 |
Industrial process power scavenging device and method of deriving process device power from an industrial process
In a particular embodiment, a process device includes a fluid disruption generation element to generate a fluid disruption within process fluid flowing through a pipe associated with an industrial...
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7961066 |
Bulk acoustic wave resonator filter
The invention relates to a filter operating with bulk acoustic waves, comprising at least one first resonator and at least one second resonator. In the at least one first and second resonator, a...
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7956514 |
Ultrasonic attenuation materials
Improved acoustic attenuation materials and applications are provided. An improved acoustic attenuation material may include a woven layer of fibers made of porous polymers, such as porous...
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7946986 |
Cartridge for use with an ultrasound therapy head
A medical ultrasound system. A base unit is included having system electronics, a user interface and ultrasound control electronics. An ultrasound therapy head is in electronic communication with...
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7948148 |
Piezoelectric transducer
A miniature piezoelectric transducer element is provided, comprising; (a) a cell element having a cavity; (b) a flexible piezoelectric layer attached to the cell member, the piezoelectric layer...
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7944118 |
System and methodology for generating electricity using at least one heat engine and thermoacoustic element to apply cyclic pressure gradients to piezoelectric material
A system for generating electrical power supply signals includes at least one heat engine that undergoes heating/cooling cycles and corresponding temperature variations. A thermoacoustic element is...
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7923893 |
3-1 mode capacitive membrane ultrasound transducer
A capacitive membrane ultrasound transducer is provided. Membranes or other microelectromechanical devices are provided in a 3-1 geometry, allowing application of an electric field substantially...
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7919906 |
Ultrasound probe, particularly for diagnostic imaging
An ultrasound probe particularly for diagnostic purposes includes a first array of ultrasound transducers that generate ultrasound waves by electric excitation and transforming ultrasound waves...
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7902722 |
Transducer apparatus for intravascular blood flow measurement
A dual spiral transducer and method of manufacture of same is disclosed. In one aspect, the transducer comprises a central rod, a first spiral piezoelectric electrode wrapped around a circumference...
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7902728 |
Thermally enhanced piezoelectric element
A system and method for removing unwanted heat generated by a piezoelectric element of an ultrasound transducer. Some implementations have high thermal conductivity (HTC) material placed adjacent...
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7898151 |
Ultrasonic sensor having a piezoelectric element
An ultrasonic sensor having a piezoelectric element including first and second electrodes is disclosed. The ultrasonic sensor includes an aluminum case having a bottom part electrically contacting...
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7893603 |
Apparatus for determining and/or monitoring a process variable
An apparatus for determining and/or monitoring a process variable of a medium. The apparatus includes: An oscillatable unit secured on a membrane; a sending/receiving unit, which excites the...
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7880368 |
Ultrasonic transducer, ultrasonic transducer array and ultrasound endoscope apparatus
An ultrasonic transducer arraying at even intervals ultrasonic transducers for transmitting and receiving ultrasonic waves and layering a plurality of acoustic matching layers on them, comprising...
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7872400 |
Ultrasonic device with a disk-shaped resonator
The present invention refers to an ultrasonic device comprising an ultrasound transducer; and a disk-shaped metallic low-frequency ultrasound (NFLUS) resonator being mechanically connected with the...
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7860259 |
Piezoelectric acoustic element, acoustic device, and portable terminal device
A piezoelectric acoustic element 1 of the present invention comprising a hollow casing 5 having a opening 3, a piezoelectric element 7 that is disposed in said casing 5 and bends when a voltage is...
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7851971 |
Low frequency quartz based MEMS resonators and method of fabricating the same
A method for fabricating a low frequency quartz resonator includes metalizing a top-side of a quartz wafer with a metal etch stop, depositing a first metal layer over the metal etch stop,...
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7847468 |
Ultrasonic transducer and ultrasonic apparatus having the same
An ultrasonic transducer (101, 102, 103) includes: a front member (1, 1a) having a front side on which an ultrasonic radiating surface (11) is provided and a back side which is opposite to the...
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7840017 |
Audio message transfer sheet and manufacturing method thereof, and power supply circuit
Sheet-like audio information recording/reproducing means capable of recording/reproducing audio information is sandwiched between two support sheets from front and back only in part of the area...
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7834521 |
Array type ultrasound probe, manufacturing method and driving method of array type ultrasound probe
An multi-channel array type ultrasound probe (search unit) disposed at least one-dimensionally, having: a plurality of sheet-shaped piezoelectric elements as transmission reception separation type...
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7830215 |
Piezoelectric oscillator and method for manufacturing the same
A method for manufacturing a piezoelectric oscillator includes the steps of: forming a first semiconductor layer above a substrate; forming a second semiconductor layer above the first...
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7821180 |
Curved two-dimensional array transducer
A curved two-dimensional array transducer includes a layer of piezoelectric material overlaying a layer of ASICs which is attached to a backing wing. The piezoelectric material is diced in...
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7794401 |
Ultrasonic probe for intra-cavity diagnosis and manufacturing method thereof
A diagnostic ultrasonic probe for use in body cavities has at its tip an ultrasonic transducer array, which has a layered structure wherein a flexible circuit board, an electric circuit, a backing...
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7781939 |
Thermal expansion matching for acoustic telemetry system
Thermal expansion matching for an acoustic telemetry system. An acoustic telemetry system includes at least one electromagnetically active element and a biasing device which reduces a compressive...
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7779531 |
MIcrofabricated ultrasonic transducers with curvature and method for making the same
The present invention provides a microfabricated ultrasonic transducer with curvature. The curvature is made possible by thinning the substrate such that it is flexible enough to be mounted on an...
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7728487 |
Ultrasound transducer manufactured by using micromachining process, its device, endoscopic ultrasound diagnosis system thereof, and method for controlling the same
An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first...
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7728486 |
Ultrasonic sensor
An ultrasonic sensor includes a case having a substantially cylindrical shape with a bottom. The case has a piezoelectric element provided on the bottom, and a cushion member is engaged with a side...
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7714684 |
Acoustic resonator performance enhancement using alternating frame structure
Disclosed is an acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, a second electrode, and an alternating frame region. The first electrode is...
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7710000 |
Erosion and wear resistant sonoelectrochemical probe
The present invention, in one set of embodiments, provides methods and systems for integrating conducting diamond electrodes into a high power acoustic resonator. More specifically, but not by way...
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7698926 |
Electrical connection of energy harvesting devices
An energy harvesting system and method. An array of cantilevers with PZT films is electrically connected to an energy harvesting device that converts vibration energy to electrical energy. An AC...
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7698949 |
Active washers for monitoring bolted joints
Apparatus, systems, and methods for inspecting and monitoring bolted joints of metallic and composite structures for defects such as delamination and fatigue cracking are provided that incorporate...
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7695438 |
Acoustic disruption minimizing systems and methods
Unipolar, bipolar or sinusoidal transmitters may leave the transmitter in any of various states at the end of one pulse. Undesired acoustic energy may be generated to change states prior to...
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7675221 |
Ultrasonic transducer and manufacturing method thereof
Disclosed is an improved construction of an ultrasonic transducer, wherein a charge is not easily injected into an insulating film even when the bottom of a membrane comes in contact with a lower...
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7629730 |
Piezoelectric electroacoustic transducing device
In order to simultaneously realize both improvements of the acoustic performance of a bimorph piezoelectric electroacoustic transducing device and the productivity, in a bimorph piezoelectric...
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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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7615911 |
Flight state detection apparatus of micro object and flight state detection method of micro object
Disclosed herein is a flight state detection apparatus and a flight state detection method that is capable of accurately detecting the flight state of a micro object ejected from a micro object...
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7609133 |
Piezoelectric thin film device having an additional film outside an excitation region
An object of the present invention is to provide a piezoelectric thin film device including a single or a plurality of film bulk acoustic resonators wherein a frequency impedance characteristic is...
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7586236 |
Tri-axial hybrid vibration isolator
A tri-axial vibration isolation device having: a passive isolation assembly including a first frame, a plurality of passive lateral isolators supporting the support frame on the base, and a...
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7579753 |
Transducers with annular contacts
An electronic device and transducer structures are described.
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7567016 |
Multi-dimensional ultrasound transducer array
In k31 mode, a vibration is along an axis or orthogonal to the poling or electric field orientation. The direction of vibration is toward a face of an ultrasound transducer array. For each element...
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7557492 |
Thermal expansion matching for acoustic telemetry system
Thermal expansion matching for an acoustic telemetry system. An acoustic telemetry system includes at least one electromagnetically active element and a biasing device which reduces a compressive...
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