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| Number | Title | Issue Date |
| 8143768 | Miniature mechanical resonator device Novel configurations for a miniature vibrating beam mechanical resonator provide low energy transfer to a supporting structure and low sensitivity to mounting misalignment. A symmetric suspended portion includes two vibrating beams that vibrate normal to a quiescent... | 03/27/2012 |
| 8093786 | Piezoelectric composite nanofibers, nanotubes, nanojunctions and nanotrees Piezoelectric nanostructures, including nanofibers, nanotubes, nanojunctions and nanotrees, may be made of piezoelectric materials alone, or as composites of piezoelectric materials and electrically-conductive materials. Homogeneous or composite nanofibers and nanot... | 01/10/2012 |
| 7944129 | Ultrasonic actuator and magnetic recording apparatus using the same Provided are ultrasonic actuators and magnetic recording apparatuses that are stably equipped with superior driving performance without making the apparatus complex or raising cost. By providing an approximately equilateral triangular shaped vibrating member provide... | 05/17/2011 |
| 7893602 | Dual-use transducer for use with a boundary-stiffened panel and method of using the same A transducer for use with a boundary-stiffened panel has an inter-digitated electrode (IDE) and a piezoelectric wafer portion positioned therebetween. The IDE and/or the wafer portion are triangular, with one edge or side aligned with a boundary edge of the panel. T... | 02/22/2011 |
| 7880371 | Dielectric composite and a method of manufacturing a dielectric composite A composite for a transducer facilitates an increased actuation force as compared to similar prior art composites for transducers. The composite facilitates increased compliance of the transducer in one direction, an improved reaction time as compared to similar pri... | 02/01/2011 |
| 7834526 | Contour resonator A contour resonator at least includes a first vibrating substrate and a second vibrating substrate having main surfaces that face each other and are bonded. The contour resonator includes a first excitation electrode provided on a front main surface of the first vib... | 11/16/2010 |
| 7548015 | Multilayer composite and a method of making such A multilayer composite includes at least two composites, each composite having a film and an electronically conductive layer. Several composites are laminated to provide an increased conversion between mechanical and electrical energies not only due to the multiplic... | 06/16/2009 |
| 7535158 | Stress sensitive element A stress sensitive element includes a vibrating arm having an electrode, a beam portion integrated with the vibrating arm at both ends of the vibration arm, and a connecting portion interposed between the beam portion and the vibrating arm. The element is placed by ... | 05/19/2009 |
| 7456554 | Support member of vibrator The present invention provides, in a physical quantity measuring system using a vibrator, a supporting structure of a vibrator for reducing the zero-point temperature drift of detection signal. It is provided a supporting member 22 for supporting a vibrator | 11/25/2008 |
| 7394183 | Kinetic micro-generator: a method of generating electrical current via magnetostriction and the piezoelectric effect An apparatus constructed from a combination of a magnetic north orienting lodestone, magnetostrictive ferrogel, and piezoelectric crystals can generate electrical current when exposed to kinetic motion. The apparatus is built in the shape of a geodesic sphere with t... | 07/01/2008 |
| 7368860 | High performance piezoelectric actuator A high performance piezoelectric actuator. The actuator includes a piezoelectric material exhibiting a selectively tapered width sufficient to enhance actuator fracture load capabilities. A passive material is disposed on or integrated with the piezoelectric materia... | 05/06/2008 |
| 7355326 | Piezoelectric transformer A piezoelectric transformer, which operates in a half wavelength mode, includes an input part having input electrodes laminated in a thickness direction on a central part in a longitudinal direction of a piezoelectric element with rectangular shape, in which the inp... | 04/08/2008 |
| 7355327 | Laminated piezoelectric/electrostrictive element A laminated piezoelectric element is applicable as a driving source of opening and closing mechanism of an injection nozzle in a fuel injecting device. A laminated piezoelectric/electrostrictive element 1 has: a columnar laminate 10 constituted by alte... | 04/08/2008 |
| 7348712 | Ultrasonic probe and ultrasonic diagnostic apparatus An ultrasonic probe includes ultrasonic piezoelectric elements that are arranged in a first direction at predetermined intervals and transmit and receive ultrasonic waves in a second direction substantially orthogonal to the first direction. The respective ultrasoni... | 03/25/2008 |
| 7316059 | Method of manufacturing an ultrasonic probe A method of manufacturing an ultrasonic probe including the steps of forming a plurality of first slits on a layered assembly having a first imner electrode member and a second inner electrode member through a top surface of the layered assembly and forming a plural... | 01/08/2008 |
| 7312559 | Stator and ceramic tube type ultrasonic motor using the same The present invention relates to a ceramic tube type ultrasonic motor having a stator including a tube-type elastic body that is formed of a ceramic material; and a plurality of piezoelectric diaphragms that are attached on the outer peripheral surface of the elasti... | 12/25/2007 |
| 7298069 | Crystal unit A crystal unit has a crystal blank provided with a pair of excitation electrodes and a pair of extension electrodes extended from the excitation electrodes, and a casing having a recess. A pair of connection terminals is formed on the bottom face of the recess. An i... | 11/20/2007 |
| 7287537 | Megasonic probe energy director A megasonic cleaning apparatus configured to provide effective cleaning of a substrate without causing damage to the substrate is provided. The apparatus includes a megasonic probe, a transducer configured to energize the probe, and a heat transfer element disposed ... | 10/30/2007 |
| 7274134 | Piezoelectric/electrostrictive structure and method for manufacturing the same A piezoelectric/electrostrictive structure is provided, including a plurality of stacked sheet-shaped piezoelectric/electrostrictive bodies and at least one sheet of a thin film. The interfaces between the piezoelectric/electrostrictive bodies are exposed at side fa... | 09/25/2007 |
| 7271526 | Piezoelectric actuator A piezoelectric actuator for actuating a mechanical component, having a multilayered structure of piezoelectric layers with inner electrodes disposed between them and contacting outer electrodes on alternating sides and the piezoelectric actuator has chamfered corne... | 09/18/2007 |
| 7262546 | Piezoelectric/electrostrictive element and piezoelectric/electrostrictive device A piezoelectric/electrostrictive element including a substantially trapezoidal laminate having narrower and wider surfaces lying substantially in parallel to each other and first and second surfaces opposed to each other between the narrower and wider surfaces. The ... | 08/28/2007 |
| 7253554 | Quartz resonator of small dimensions The invention concerns a piezoelectric resonator (10), intended to be packaged in a case, including a base (12) formed of a first fixing zone (121), a second central mechanical uncoupling zone (122) and a third zone (123) opposite ... | 08/07/2007 |
| 7242132 | Piezoelectric actuator and head assembly using the piezoelectric actuator A head assembly includes a suspension having a gimbal, a flexible printed wiring sheet having a plurality of conductor patterns and adhered to the suspension, first and second piezoelectric actuators mounted on the gimbal, and a head slider mounted on the first and ... | 07/10/2007 |
| 7237564 | Distribution of energy in a high frequency resonating wafer processing system A transducer for use in an acoustic energy cleaner is provided. The transducer includes a resonator and a plurality of crystals bonded to a surface of the resonator. The plurality of crystals is configured to be bonded to the surface of the resonator in a staggered ... | 07/03/2007 |
| 7236066 | Film bulk acoustic resonator and filter circuit including a plurality of film bulk acoustic resonators A film bulk acoustic resonator includes a first electrode, a piezoelectric film disposed on the first electrode, a second electrode disposed on the piezoelectric film or disposed above the piezoelectric film, and an additional film disposed on and abutting the piezo... | 06/26/2007 |
| 7233097 | Rolled electroactive polymers The invention describes rolled electroactive polymer devices. The invention also describes employment of these devices in a wide array of applications and methods for their fabrication. A rolled electroactive polymer device converts between electrical and mechanical... | 06/19/2007 |
| 7227296 | Protective housing for a ceramic actuator An example housing that protects a ceramic actuator from excessive and damaging displacement comprises a protective structure arranged to limit the motion of the actuator by contacting at least one section of the actuator between fixed and moving terminals of said a... | 06/05/2007 |
| 7211936 | Resonator piece, resonator, oscillator and electronic device The invention provides a resonator piece, a resonator, an oscillator and an electronic device that can prevent in advance defects from arising in the electrodes and whose frequency characteristics of the resonator piece and CI value are stable. The resonator piece c... | 05/01/2007 |
| 7205707 | Laser machining of electroactive ceramics Laser beam machining is applied to form arbitrarily shaped electroactive ceramics for transducers (e.g., electromechanical sensors and actuators). One particularly preferred embodiment of the invention comprises machining parallel grooves in a ceramic plate to impro... | 04/17/2007 |
| 7199510 | Quartz crystal unit A crystal unit for high frequency use includes: a crystal blank having a central portion that is used as a vibration region and a peripheral portion that surrounds the central portion and that is provided with a greater thickness than the central portion; a pair of ... | 04/03/2007 |
| 7197798 | Method of fabricating a composite apparatus A method for fabricating a piezoelectric macro-fiber composite actuator comprises making a piezoelectric fiber sheet by providing a plurality of wafers of piezoelectric material, bonding the wafers together with an adhesive material to form a stack of alternating la... | 04/03/2007 |
| 7193354 | Resonator, unit having resonator, oscillator having unit and electronic apparatus having oscillator An electronic apparatus comprises a display portion and a plurality of oscillators, one of which is a quartz crystal oscillator comprising: a quartz crystal oscillating circuit comprising; an amplification circuit and a feedback circuit. For example, the feedback ci... | 03/20/2007 |
| 7183698 | Piezoelectric structure A piezoelectric structure receives input from a voltage source to generate polarization and output voltage. Two surfaces are formed on the direction normal to the polarized direction. One surface has an input electrode electrically connecting to the voltage source a... | 02/27/2007 |
| 7174888 | Liquid dispensing apparatus and methods The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures ... | 02/13/2007 |
| 7176604 | Piezoelectric device and method of manufacturing the device A piezoelectric device includes a substrate, a buffer layer on the substrate, a lower electrode layer on the buffer layer, a piezoelectric layer on the lower electrode layer, and an upper electrode layer on the piezoelectric layer. The piezoelectric layer has a base... | 02/13/2007 |
| 7170218 | Electronic apparatus with two quartz crystal oscillators utilizing different vibration modes The electronic apparatus comprises a display portion and a quartz crystal oscillator at least, and said electronic apparatus comprises at least two quartz crystal oscillators. Also, each of two quartz crystal oscillators of the at least two oscillators comprises a q... | 01/30/2007 |
| 7170215 | Electronic component and method for manufacturing the same An electronic component includes a substrate; a piezoelectric material layer supported directly or indirectly by the substrate; a first electrode arranged on a surface of the piezoelectric material layer on an opposite side of the substrate; and a second electrode a... | 01/30/2007 |
| 7166952 | Piezoelectric structures An equivalent to the spatial separation either side of a nominal median plane that is inherent in a bimorph (with one piezoelectric layer on one side, and the second on the other side of the plane) is attained by structurally shaping the cross-section of a simple, s... | 01/23/2007 |
| 7161281 | Less-dust-generative piezoelectric/electrostrictive device and manufacturing method There is disclosed a piezoelectric/electrostrictive device being less-particle-generative and capable of continuously realizing a stable displacement operation over a long period of time or being large in displacement amount and high in generative force and the like... | 01/09/2007 |
| 7154358 | Film bulk acoustic resonator structure and method of making A film bulk acoustic resonator is formed on a substrate having a major surface. The film bulk acoustic resonator includes an elongated stack. The elongated stack includes a layer of piezoelectric material positioned between a first conductive layer deposited on a fi... | 12/26/2006 |
