Entries |
Document | Title | Date |
20080218033 | Piezoelectric Actuator With Internal Contact-Connection - The invention proposes a piezoelectric actuator, for example for a piezoelectric injector or for actuating another mechanical component. The actuator has a piezoelectric element formed of a multilayer structure of piezoelectric layers. Inner electrodes are arranged between the piezoelectric layers in the direction of action and can alternately have a positive and a negative electric charge applied to them. A mutual contact-connection of the inner electrodes is established by means of which contact elements each having a core electrode and an electrically conductive elastic sheath. The contact elements are located in longitudinal inner bores of the piezoelectric actuator, perpendicularly to the layer structure. The core electrodes are provided with a conductive elastomer, which can be applied before assembly. The conductive elastomer has a predefined notch geometry in the form of a sheath in order to increase elasticity. The notch geometry includes an indentation which is made around the sheath in the longitudinal direction in the form of a helix. | 09-11-2008 |
20090045701 | Multi-Layer Piezoelectric Device - To provide a multi-layer piezoelectric device having excellent durability in which the amount of displacement does not change even when the piezoelectric actuator is subjected to continuous operation over a long period of time under a high voltage and a high pressure, the multi-layer piezoelectric device comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, while content of alkali metal in a range from 5 ppm to 300 ppm is contained. | 02-19-2009 |
20090045702 | Multi-Layer Piezoelectric Device - To provide a multi-layer piezoelectric device having excellent durability in which the amount of displacement does not change even when the piezoelectric actuator is subjected to continuous operation over a long period of time under a high voltage and a high pressure, the multi-layer piezoelectric device comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, while content of alkali metal in a range from 5 ppm to 300 ppm is contained. | 02-19-2009 |
20090058230 | Bond pad for use with piezoelectric ceramic substrates - A piezoelectric assembly includes a piezoelectric substrate that has a top surface, a bottom surface, and at least one side surface. A top electrode is defined on the top surface and a first aperture is defined in the top electrode. A bottom electrode is disposed on the bottom surface. The electrodes are formed from a thin film metal. A first thick film bond pad is disposed in the first aperture and is in contact with the piezoelectric substrate. The first thick film bond pad is in electrical contact with the top electrode. In further embodiments, a second thick film bond pad is disposed on either the top surface or in a second aperture defined in the bottom electrode. | 03-05-2009 |
20090066193 | Powder Containing Silver and At Least Two Non Silver Containing Elements - Disclosed are methods of making multi-element, finely divided, alloy powders containing silver and at least two non-silver containing elements and the uses of these powders in ceramic piezoelectric devices. | 03-12-2009 |
20090236947 | Piezoelectric materials - A piezoelectric perovskite mixed oxide compound has the general formula (BiFeO | 09-24-2009 |
20090243441 | Piezoelectric Component - The invention relates to a piezoelectric multiple-layer component with a base body, which comprises a stack of piezoelectric layers ( | 10-01-2009 |
20090295256 | Multilayer Piezoelectric Element and Injector Using the Same - In a multilayer piezoelectric element in which a plurality of piezoelectric layers and a plurality of metal layers are stacked alternately, the plurality of metal layers include a plurality of low-filled metal layers having a lower filling rate of metal composing the metal layers than oppositely disposed metal layers adjacent to each other in a stacking direction. In a multilayer piezoelectric element in which a plurality of piezoelectric layers and a plurality of metal layers are stacked alternately, the plurality of metal layers include a plurality of thin metal layers having a smaller thickness than oppositely disposed metal layers adjacent to each other in a stacking direction. In a multilayer piezoelectric element in which a plurality of piezoelectric layers and a plurality of metal layers composed mainly of an alloy are stacked alternately, the plurality of metal layers include a plurality of high-ratio metal layers having a higher ratio of a component constituting the alloy than oppositely disposed metal layers adjacent to each other in a stacking direction. | 12-03-2009 |
20090302716 | PIEZOELECTRIC DEVICE - A piezoelectric device which is a MEMS device is provided. In the device, the entire silicon layer of the SOI substrate is a p-type region. A plurality of n-type regions are formed in the silicon layer so as to be exposed to the upper surface of the silicon layer and spaced from each other. A piezoelectric film made of AlN is provided on the SOI substrate so as to contact the n-type region, and a conductor film made of aluminum is provided on the piezoelectric film. Thereby, the n-type region functions as a lower electrode and the conductor film functions as an upper electrode. | 12-10-2009 |
20100007248 | 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 electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain. | 01-14-2010 |
20100060109 | NANOTUBES, NANORODS AND NANOWIRES HAVING PIEZOELECTRIC AND/OR PYROELECTRIC PROPERTIES AND DEVICES MANUFACTURED THEREFROM - Disclosed herein is a device comprising a pair of electrodes; and a nanotube, a nanorod and/or a nanowire; the nanotube, nanorod and/or nanowire comprising a piezoelectric and/or pyroelectric polymeric composition; the pair of electrodes being in electrical communication with opposing surfaces of the nanotube, nanorod and/or a nanowire; the pair of electrodes being perpendicular to a longitudinal axis of the nanotube, nanorod and/or a nanowire. | 03-11-2010 |
20100066212 | PIEZOELECTRIC COMPONENT WITH DIRECTLY STRUCTURED EXTERNAL CONTACTING, METHOD FOR MANUFACTURING THE COMPONENT AND USE OF SAID COMPONENT - The embodiments relate to a piezoelectric component including at least one fully active piezoelectric element comprising electrode layers and piezoelectric layers arranged therebetween. The electrode layers are conveyed to a lateral edge of the piezoelectric element and contacted there. The external electrode is attached in a structured fashion for electrical contacting and/or a structured external electrode is made available: The external electrode essentially includes two components, namely the contacting field and the contacting path. In the event of several piezoelectric elements (piezoelectric actuator in multilayer structure) stacked one above the other, the contacting path functions as a collector electrode, which connects the contacting fields of the piezoelectric elements to one another. The insulation path exists for the electrical insulation of the contacting path from electrode layers which are not to be contacted. A reliable contacting of the electrode layers is possible with the structure according to the invention. A fully active, piezoceramic multilayer actuator with the described contacting is used in automotive engineering for activating fuel injection valves. | 03-18-2010 |
20100102679 | PIEZOELECTRIC PORCELAIN COMPOSITION, AND PIEZOELECTRIC CERAMIC ELECTRONIC COMPONENT - A piezoelectric porcelain composition includes a main ingredient represented by a general formula ((1−x)(K | 04-29-2010 |
20100141098 | Piezoelectric Multilayer Component - A piezoelectric multilayer component has a base body including a stack of dielectric layers, electrode layers and at least one predetermined breaking layer. The predetermined breaking layer is arranged at least for the most part in an inactive zone of the multilayer component and cracks under specific tensile loads. | 06-10-2010 |
20100156249 | APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy may include; a first electrode, a second electrode spaced apart from the first electrode, the second electrode having a substantially planar flat plate shape, a conductor which electrically connects the first and second electrodes, and a nanowire disposed on the first electrode, the nanowire including a deformable piezoelectric material, wherein a Schottky contact is formed between the nanowire and the second electrode as the nanowires is deformed. | 06-24-2010 |
20100156250 | Multi-Layer Piezoelectric Element and Method for Manufacturing the Same - A multi-layer piezoelectric element having high durability which allows it to increase the amount of displacement of a piezoelectric actuator under high voltage and high pressure and does not undergo a change in the amount of displacement during continuous operation in a high electric field and under a high pressure over a long time period is provided. | 06-24-2010 |
20100194245 | PIEZOELECTRIC THIN FILM AND METHOD OF MANUFACTURING THE SAME, ANGULAR VELOCITY SENSOR, METHOD OF MEASURING ANGULAR VELOCITY BY THE ANGULAR VELOCITY SENSOR, PIEZOELECTRIC GENERATING ELEMENT, AND METHOD OF GENERATING ELECTRIC POWER USING THE PIEZOELECTRIC GENERATING ELEMENT - Provided are a piezoelectric thin film including a lead-free ferroelectric material and exhibiting high piezoelectric performance comparable to that of PZT, and a method of manufacturing the piezoelectric thin film. The piezoelectric thin film of the present invention has a multilayer structure in which a metal electrode film having a plane orientation of (100), a (Bi,Na)TiO | 08-05-2010 |
20100201227 | POLYMER AND POLYMER ACTUATOR COMPRISING THE SAME - Provided are a polymer and a polymer actuator including the polymer. The polymer is cross-linked by a cross-linking agent. When the polymer is used in the polymer actuator, the polymer actuator shows a high strain and may be stably operated at high temperatures. | 08-12-2010 |
20100259132 | Multi-Layer Piezoelectric Element - A multi-layer piezoelectric element of high durability wherein the internal electrodes and the external electrodes do not break even when operated continuously over a long period of time under high electric field and high pressure is provided. The first multi-layer piezoelectric element according to the present invention comprises a stack formed by stacking piezoelectric layers and internal electrodes alternately one on another and external electrodes formed on a first side face and on a second side face of the stack, wherein one of the adjacent internal electrodes is connected to the external electrode formed on the first side face and the other internal electrode is connected to the external electrode formed on the second side face, and the external electrodes include an electrically conductive material and glass and is formed from a porous electrically conductive material that has a three-dimensional mesh structure. | 10-14-2010 |
20110001398 | Carbon Nanotube Film Electrode and an Electroactive Device Fabricated with the Carbon Nanotube Film Electrode and a Method for Making Same - A single wall carbon nanotube (SWCNT) film electrode (FE), all-organic electroactive device systems fabricated with the SWNT-FE, and methods for making same. The SWCNT can be replaced by multi-wall carbon nanotubes or few wall carbon nanotubes. The SWCNT film can be obtained by filtering SWCNT solution onto the surface of an anodized alumina membrane. A freestanding flexible SWCNT film can be collected by breaking up this brittle membrane. The conductivity of this SWCNT film can advantageously be higher than 280 S/cm. The EAP actuator layered with the SWNT-FE shows a higher electric field-induced strain than an EAP layered with metal electrodes because the flexible SWNT-FE relieves the restraint of the displacement of the polymeric active layer as compared to the metal electrode. In addition, if thin enough, the SWNT-FE is transparent in the visible light range, thus making it suitable for use in actuators used in optical devices. | 01-06-2011 |
20110018400 | DIELECTRIC MATERIAL FOR POLYMERIC ACTUATOR, AND POLYMERIC ACTUATOR USING THE SAME - It is intended to provide a dielectric material for polymeric actuator, which has a high dielectric constant, low Young's modulus and excellent operation performance, which can be simply formed, and which has high production efficiency. It is also intended to provide a polymeric actuator which comprises the dielectric material and has excellent operation performance. | 01-27-2011 |
20110050048 | ACTUATOR - The present invention provides an actuator which can obtain a large displacement in a moving part, and suppresses the deterioration due to a counteracting force of the moving part in a stationary part. The actuator has a pair of electrode layers which contain a conductive material and a polymer, and an ionic conduction layer which is sandwiched between the pair of the electrode layers, wherein the content of the conductive material contained in the electrode layer is larger in the stationary part of the actuator than in the moving part of the actuator. The content of the conductive material contained in the electrode layer increases toward the stationary part of the actuator from the moving part. | 03-03-2011 |
20110062829 | SHEET-TYPE VIBRATOR AND ACOUSTIC APPARATUS - In a sheet-type piezoelectric vibrator provided with a piezoelectric sheet made from a transparent organic polymer and electrodes formed on respective main surfaces that are opposite to each other of the piezoelectric sheet, an electrode material that is effectively used for making the vibrator colorless is provided. The first electrodes formed on one of the main surfaces of piezoelectric sheets are made of zinc oxide electrode layers, each mainly containing zinc oxide, and second electrodes formed on the other main surface of the piezoelectric sheets include polythiophene electrode layers made from a conductive polymer containing thiophene in a molecule structure thereof. Although the zinc oxide electrode layer is transparent, it is slightly yellowish, while, on the other hand, although the polythiophene electrode layer is also transparent, it is slightly bluish. Since the spectral characteristic of light transmitted through these two electrode layers is made substantially flat in the visible region, the coloring of the transmitted light is suppressed so that the layers appear colorless and transparent. | 03-17-2011 |
20110101829 | Piezoelectric Multilayer Component - A piezoelectric multilayer component includes a stack of green piezoceramic layers which are arranged one on top of the other. A first electrode layer is applied to a piezoceramic layer and contains a first metal. A second electrode layer is applied to a further piezoceramic layer and is adjacent to the first electrode layer in the stacking direction. The second electrode layer contains a higher concentration of the first metal than does the first electrode layer. | 05-05-2011 |
20110121690 | PIEZOELECTRIC THIN FILM ELEMENT AND PIEZOELECTRIC THIN FILM DEVICE - To provide a piezoelectric thin film element comprising: a piezoelectric thin film on a substrate, having an alkali-niobium oxide-based perovskite structure expressed by a composition formula (K | 05-26-2011 |
20110127886 | PIEZOELECTRIC ACTUATOR AND METHOD FOR PRODUCING A PIEZOELECTRIC ACTUATOR - A fully active piezoelectric stack has alternately successive piezoelectric layers and inner electrodes which pass through to the outer side of the stack and each have a first region, which does not adhere or adheres poorly and a second region which adheres well to the coating. The inner electrodes are provided for the purpose of using their first regions to alternately contact-connect a first outer electrode and a second outer electrode. The outer side of the fully active piezoelectric stack is coated with the coating at least in regions which are assigned the outer electrodes. The coating is then removed in regions which border the first regions of the inner electrodes and the two outer electrodes are applied to the remaining coating, with the result that the outer electrodes contact-connect the first regions of the inner electrodes and the coating is otherwise arranged between the inner electrodes and the outer electrodes. | 06-02-2011 |
20110140580 | METAL NONPARTICLE-POLYMER COMPOSITES, METHOD OF MANUFACTURING THE SAME, AND POLYMER ACTUATOR USING THE SAME - Metal nanoparticle-polymer composites, a method of manufacturing the same, and a polymer actuator using the same are provided. The method includes synthesizing an organometallic compound as a precursor of metal nanoparticles, preparing a solution mixture containing the organometallic compound and a polymer, and drying and annealing the solution mixture to generate the metal nanoparticle-polymer composite including metal nanoparticles. Thus, highly efficient metal nanoparticle-polymer composite materials may be manufactured with a uniform distribution without synthesizing nanoparticles. | 06-16-2011 |
20110156538 | POLYMER ACTUATOR - A polymer actuator includes: a pair of electrode layers made of an ionic liquid, a polymer, and carbon nanoparticles; and an electrolyte layer provided between the pair of electrode layers, wherein the carbon nanoparticles are a mixture of carbon nanotubes (hereinafter, referred to as CNTs) and carbon nanohorns (hereinafter, referred to as CNHs), a ratio by weight of the carbon nanoparticles to the total weight of the ionic liquid, the polymer, and the carbon nanoparticles contained in the pair of electrodes is equal to or higher than 25 wt % and equal to or lower than 80 wt %, a mixing ratio of the CNTs to the CNHs contained in the carbon particles is in a range of (CNT):(CNH)=1:1 to 3:1, and a ratio by weight of the polymer is equal to or higher than 17.7 wt % and equal to or lower than 30.2 wt %. | 06-30-2011 |
20110169378 | ACTUATOR APPARATUS AND METHODS OF MANUFACTURING ACTUATOR APPARATUS, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - Oxygen defect of PZT can be suppressed from being generated because a temperature of a piezoelectric layer containing the PZT when a first layer of an upper electrode is formed is equal to or lower than 250° C. If the first layer containing Ir is formed on the piezoelectric layer in a state where the piezoelectric layer as a substrate is at the temperature of equal to or lower than 250° C., a compression stress is generated on the first layer. Then, a second layer having a tensile stress is formed on the first layer on which the compression stress is generated. This makes it possible to eliminate deflection on an entire piezoelectric element. Accordingly, since an initial deflection is small, reduction in the deflection amount of the piezoelectric element can be suppressed. Therefore, an actuator apparatus in which reduction in a displacement amount can be suppressed can be obtained. | 07-14-2011 |
20110187237 | PIEZOELECTRIC FILM ELEMENT, AND MANUFACTURING METHOD OF THE SAME AND PIEZOELECTRIC FILM DEVICE - A piezoelectric film element is provided, which is capable of improving piezoelectric properties, having on a substrate at least a lower electrode, a lead-free piezoelectric film, and an upper electrode, wherein at least the lower electrode out of the lower electrode and the upper electrode has a crystal structure of a cubic crystal system, a tetragonal crystal system, an orthorhombic crystal system, a hexagonal crystal system, a monoclinic crystal system, a triclinic crystal system, a trigonal crystal system, or has a composition in which one of these crystals exists or two or more of them coexist, and crystal axes of the crystal structure are preferentially oriented to a specific axis smaller than or equal to two axes of these crystals, and a ratio c/a′ is set in a range of 0.992 or more and 0.999 or less, which is the ratio of a crystal lattice spacing c in a direction of a normal line to the substrate surface, with respect to a crystal lattice spacing a′ whose inclination angle from the substrate surface is in a range of 10° or more and 30° or less. | 08-04-2011 |
20110187238 | Actuator Element and Use of Same - Actuator elements can be used for mechatronic, adaptive applications under the most varied conditions of use. These actuator elements have improved properties and can be manufactured inexpensively. The actuator elements are formed with at least one dielectric separation layer which is encompassed by two electrically conductive electrodes. The electrodes and the separation layer are in this respect formed using the same visco-elastically deformable plastic. The plastic forms a matrix in which carbon nanotubes are embedded at least in the electrodes. | 08-04-2011 |
20110204754 | PIEZOELETRIC CERAMIC COMPOSITION AND PIEZOELECTRIC CERAMIC ELECTRONIC COMPONENT - A piezoelectric ceramic includes a main constituent represented by the general formula {(1−x) (K | 08-25-2011 |
20110210650 | 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 nanotubes may be fabricated by electrospinning. Homogeneous or composite nanotubes, nanojunctions and nanotrees may be fabricated by template-assisted processes in which colloidal suspensions and/or modified sol-gels of the desired materials are deposited sequentially into the pores of a template. The electrospinning or template-assisted fabrication methods may employ a modified sol-gel process for obtaining a perovskite phase in the piezoelectric material at a low annealing temperature. | 09-01-2011 |
20110241493 | CERAMIC, AND PIEZOELECTRIC/ELECTROSTRICTION ELEMENT - A ceramic having a plurality of crystal grains that contain lead, lithium, and boron, are arranged in a planar direction, and have a mutually same crystal orientation with respect to the thickness direction. | 10-06-2011 |
20120007475 | CONSTRUCTION ELEMENT THAT OPERATES WITH ACOUSTIC WAVES, AND METHOD FOR THE MANUFACTURE THEREOF - A component that operates with acoustic waves includes a substrate including a piezoelectric material, a first electrode plane in which bottom electrode structures including an acoustically active bottom electrode are arranged directly on the substrate, and a top electrode arranged above the bottom electrode plane and which is electrically conductively connected to the bottom electrode structures, wherein excitation of the acoustic waves during operation of the component is effected exclusively or predominantly through the bottom electrode structures. | 01-12-2012 |
20120019107 | Piezo Actuator in Multi-Layered Construction - A multilayer piezo actuator is specified, in which piezoelectric layers and electrode layers are arranged to form a stack. Electrical contact is made with the electrode layers via two external electrodes which consist of wires which are woven with one another. The external electrodes are in this case connected over their entire area to the side surfaces of the stack. A method is also specified for fitting an external electrode. | 01-26-2012 |
20120074819 | PIEZOCERAMIC TRANSDUCER AND METHOD FOR MANUFACTURING THE SAME - A piezoceramic transducer (PZT transducer) and a method for manufacturing the same are provided. The PZT transducer includes a piezoceramic substrate and an electrode unit. The piezoceramic substrate has a first surface and a second surface opposite the first surface, and has a mechanical quality factor (Q | 03-29-2012 |
20120091861 | CERAMIC COMPOSITION FOR PIEZOELECTRIC ACTUATOR AND PIEZOELECTRIC ACTUATOR COMPRISING THE SAME - The present invention relates to a ceramic composition for a piezoelectric actuator and a piezoelectric actuator comprising the same. The ceramic composition for piezoelectric actuator includes a piezoelectric ceramic powder expressed by a Chemical Formula: (1-x)Pb(Zr | 04-19-2012 |
20120112607 | CERAMIC COMPOSITION FOR PIEZOELECTRIC ACTUATOR AND PIEZOELECTRIC ACTUATOR INCLUDING THE SAME - Disclosed are a ceramic composition for a piezoelectric actuator and a piezoelectric actuator including the same. The ceramic composition for a piezoelectric actuator includes piezoelectric ceramic powder expressed by a chemical formula, (1−x)Pb(Zr | 05-10-2012 |
20120119626 | CONDUCTIVE FILM, AND TRANSDUCER AND FLEXIBLE WIRING BOARD USING THE SAME - To provide a conductive film that is flexible, extendable and contractible, and for which the electrical resistance hardly increases even when the conductive film is extended. The conductive film contains an elastomer and metallic filler particles, and satisfies a condition (A) [an average value of reference numbers is 0.8 (1/μm) or more, or the metallic filler particles include flake-like metallic filler particles having a thickness of 1 μm or less and an aspect ratio of 26 or more and the average value of the reference numbers is 0.4 (1/μm) or more] and a condition (B) [a number of unit areas for which an area percentage of the elastomer is 60% or more is 20 or more], the condition (A) being a conductivity indicator and the condition (B) being a flexibility indicator. | 05-17-2012 |
20120146464 | CONDUCTIVE CROSSLINKED BODY AND PRODUCTION PROCESS THEREOF, AND TRANSDUCER, FLEXIBLE WIRING BOARD AND ELECTROMAGNETIC WAVE SHIELD USING THE CONDUCTIVE CROSSLINKED BODY - The present invention provides a flexible conductive crosslinked body excellent in durability having a small influence of a reaction residue after the crosslinking on an object to which the conductive crosslinked body adheres, and a production process of the flexible conductive crosslinked body. The conductive crosslinked body is synthesized from a conductive composition containing a rubber polymer, an organic metal compound, and a conducting agent and has a crosslinked structure. The production process of the conductive crosslinked body includes: a mixed solution preparing step for preparing a mixed solution in which the rubber polymer, the conducting agent, and the organic metal compound are mixed in a solvent capable of dissolving the rubber polymer and capable of chelating the organic metal compound; and a crosslinking step for removing the solvent from the mixed solution to allow a crosslinking reaction to proceed. The conductive crosslinked body is suitable as an electrode or a wire for a transducer, a wire for a flexible wiring board, and an electromagnetic wave shield. | 06-14-2012 |
20120161586 | ACTUATOR - Provided are an electrode having high conductivity and high durability to driving deformation, and an actuator including the electrode, the actuator having a large amount of displacement. The actuator includes a pair of electrodes arranged oppositely and an intermediate layer arranged between the pair of electrodes, the intermediate layer containing an electrolyte, and the actuator being deformed by applying a voltage to the pair of electrodes, in which at least one of the pair of electrodes includes a porous structure containing a first conductive material and having conductivity, a second conductive material, and an electrolyte, pores of the porous structure being filled with the second conductive material and the electrolyte. | 06-28-2012 |
20120169183 | CERAMIC COMPOSITION FOR PIEZOELECTRIC ACTUATOR AND METHOD OF MANUFACTURING THE SAME, AND PIEZOELECTRIC ACTUATOR MANUFACTURED BY USING THE SAME - There are provided a ceramic composition for a piezoelectric actuator allowing for low-temperature sintering and a method of manufacturing the same, and a piezoelectric actuator. A Cuo powder and an MnO powder as an sintring additive are added to a PZT-PZN piezoelectric ceramic powder to allow low-temperature sintering at a temperature of 950° C. or lower, and the usage of high-priced palladium (Pd) used as materials for high-temperature inner electrodes is decreased due to lowering of the sintering temperature, and thereby to achieve cost reduction. | 07-05-2012 |
20120187805 | PIEZOELECTRIC RESONATOR PLATE AND MANUFACTURING METHOD FOR PIEZOELECTRIC RESONATOR PLATE - In a piezoelectric resonator plate, a substrate having a main face formed in a rectangular shape is provided with a vibration portion and a joining portion that are integrated with each other, the vibration portion including a vibration region configured by forming a pair of excitation electrodes, and the joining portion having formed therein a pair of terminal electrodes that is joined to an external portion. The terminal electrodes in the pair each have a conductive bump formed therein and are electrically connected respectively to the excitation electrodes in the pair. Also, the substrate includes a post portion formed convexly at a position where the pair of terminal electrodes is formed. | 07-26-2012 |
20120235543 | ACTUATOR - There is provided an actuator that can deform as an electrolyte moves, wherein at least one of a pair of electrode layers contains polymer fibers, and the polymer fibers contain an electroconductive material and are porous. | 09-20-2012 |
20120248941 | STACKED BULK ACCOUSTIC RESONATOR AND METHOD OF FABRICATING THE SAME - A stacked bulk acoustic resonator includes a first piezoelectric layer stacked on a first electrode, a second electrode stacked on the first piezoelectric layer; a second piezoelectric layer stacked on the second electrode, and a third electrode stacked on the second piezoelectric layer. The stacked bulk acoustic resonator includes further includes an inner raised region formed in an inner portion on a surface of at least one of the first, second and third electrodes, and an outer raised region formed along an outer perimeter on the surface of the at least one of the first, second or third electrodes. The outer raised region surrounds the inner raised region and defines a gap between the inner raised region and the outer raised region. | 10-04-2012 |
20120248942 | ELECTROMECHANICAL CONVERTER, METHOD FOR ITS PRODUCTION AND USE THEREOF - An electromechanical converter comprises a dielectric elastomer layer ( | 10-04-2012 |
20120248943 | Oscillator Electrode Material Having Excellent Aging Characteristics, Piezoelectric Oscillator Using The Material And Sputtering Target Comprising The Material - An electrode material capable of making more satisfactory the dispersion at the time of production and the aging property of a resonator than Au and capable of reducing the price as compared to Au. An resonator electrode material including a ternary alloy composed of Au and two metals M | 10-04-2012 |
20120286627 | POLYMER BLEND COMPOSITION AND ACTUATORS USING THE SAME - The present invention relates to a polymer blend composition comprising a dielectric elastomer, an actuator film manufactured using the same, and an actuator comprising the film. The polymer blend composition according to the present invention comprises a block copolymer having excellent compatibility with the dielectric elastomer and excellent dielectric properties, and thus displacement values suitable for the purpose can be obtained by a simple method of adjusting a composition of the polymer blend. Moreover, the film manufactured using the same has high dielectric constant, low dielectric loss and high electromechanical displacement, and thus the film exhibits excellent dielectric properties when it is applied in a dielectric layer for an actuator. | 11-15-2012 |
20120306323 | Method for Producing a Piezoelectric Multilayer Component and a Piezoelectric Multilayer Component - A method for producing a piezoelectric multilayer component is disclosed. Piezoelectric green films and electrode material are provided, arranged alternately on top of one another and sintered. The electrode material is provided with a PbO-containing coating and/or PbO is mixed into the electrode material. | 12-06-2012 |
20130082575 | MULTILAYER CERAMIC ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF - There are provided a multilayer ceramic electronic component that does not require a heat treatment under a reduction atmosphere, and a manufacturing method thereof, wherein a conductive oxide is used as a material of internal and external electrodes and conductive layers having elasticity are formed on the external electrodes. In the case of the multilayer ceramic electronic component, a firing process may be performed under an air atmosphere, such that a manufacturing process may be simplified and manufacturing costs may be reduced. | 04-04-2013 |
20130119827 | DIELECTRIC COMPOSITION AND CERAMIC ELECTRONIC COMPONENT INCLUDING THE SAME - There is provided a dielectric composition, including; a base powder including Ba | 05-16-2013 |
20130127298 | PIEZOELECTRIC MATERIAL AND DEVICES USING THE SAME - Provided is a Bi-based piezoelectric material having good piezoelectric properties. The piezoelectric material includes a perovskite-type metal oxide represented by the following general formula (1): | 05-23-2013 |
20130134836 | MULTILAYER CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME - There is provided a multilayer ceramic electronic component, including: a ceramic element having a plurality of dielectric layers laminated therein; and first and second internal electrodes formed within the ceramic element, wherein the first and second internal electrodes include 80 to 99.9 wt % of copper (Cu) and 0.1 to 20 wt % of nickel (Ni), and a frequency therefor is 1000 MHz or less. | 05-30-2013 |
20130181581 | Piezoelectric Multilayer Actuator - A piezoelectric multilayer actuator includes a stack of piezoelectric layers arranged one above another and first electrode layers and second electrode layers arranged alternately one above another between said piezoelectric layers. The electrode layers extend into the stack from a first and a second lateral face of the stack and overlapping in the stack. The first lateral face holds a first contact element in electrical contact with the first electrode layers and the second lateral face ( | 07-18-2013 |
20130320814 | PIEZOELECTRIC DEVICE - A piezoelectric device has a first electrode film, a piezoelectric film provided on the first electrode film, and a second electrode film provided on the piezoelectric film. At least one of the pair of electrode films is composed of an alloy, and a major component of the alloy is a metal selected from the group consisting of Ti, Al, Mg, and Zn. | 12-05-2013 |
20140001924 | POLYMER AND POLYMER ACTUATOR COMPRISING THE SAME | 01-02-2014 |
20140159549 | PIEZOELECTRIC ELEMENT - A piezoelectric element includes, in sequence, a substrate containing metallic material; a first intermediate layer; a lower electrode layer; a piezoelectric layer; and an upper electrode layer. The first intermediate layer contains, as a main component, a nitrogen-containing silicon oxide having a silicon-nitrogen bond. The lower electrode layer contains a perovskite-type oxide in (100) preferential orientation. The piezoelectric layer contains a perovskite-type oxide in (001) or (100) preferential orientation. | 06-12-2014 |
20140167567 | PIEZOELECTRIC/ELECTROSTRICTIVE ELEMENT - In the manufacture of a laminated piezoelectric/electrostrictive element by lamination of a piezoelectric/electrostrictive film and an electrode film containing either platinum or an alloy composed mainly of platinum and having a thickness of 2.0 μm or less, both or either one of yttrium oxide (Y | 06-19-2014 |
20140175949 | PIEZOELECTRIC BULK WAVE DEVICE, AND METHOD OF MANUFACTURING THE PIEZOELECTRIC BULK WAVE DEVICE - A piezoelectric bulk wave device that includes a piezoelectric thin plate that is made of LiTaO | 06-26-2014 |
20140191620 | PIEZOELECTRIC COMPONENT AND METHOD FOR PRODUCING A PIEZOELECTRIC COMPONENT - An electrically conductive contact layer ( | 07-10-2014 |
20140239774 | NEW PROCESSING METHOD FOR GRAIN-ORIENTED LEAD-FREE PIEZOELECTRIC Na0.5Bi0.5TiO3-BaTiO3 CERAMICS EXHIBITING GIANT PERFORMANCE - Textured ceramic compositions having improved piezoelectric characteristics as compared with their random counterparts are provided. Methods of making the compositions and devices using them are also included. More particularly, compositions comprising textured ceramic Na | 08-28-2014 |
20140246956 | VOLUME WAVE RESONATORS ON MICROMACHINED VERTICAL STRUCTURES - A bulk wave piezoelectric resonator operating at a predetermined frequency includes a substrate block, having a plane face, a first thickness and consisting of a first material, a resonant plate having a length, width and second thickness, and consisting of a second piezoelectric material, first and second metal electrodes at least partly covering the resonant plate on each side and partly facing each other. The resonant plate is fixed perpendicularly in the vicinity of the plane face of the substrate block so that the width of the resonant plate and the first thickness of the substrate block have the same direction, and the first material, the second material, the first thickness of the block of substrate, the length, the width, the second thickness of the resonant plate are configured for trapping bulk waves at the operating frequency of the resonator and for producing a plane-plane type bulk wave piezoelectric resonator. | 09-04-2014 |
20140285069 | PIEZOELECTRIC THIN-FILM MULTILAYER BODY - A piezoelectric thin-film multilayer body includes a substrate, an adhesive layer on the substrate, a lower electrode layer on the adhesive layer, and a lead-free piezoelectric thin-film layer on the lower electrode layer. The lead-free piezoelectric thin-film layer is composed of lithium potassium sodium niobate (composition formula (Na | 09-25-2014 |
20140285070 | CERAMIC MATERIAL, METHOD FOR PRODUCING THE CERAMIC MATERIAL, AND ELECTROCERAMIC COMPONENT COMPRISING THE CERAMIC MATERIAL - The invention relates to a ceramic material, comprising lead zirconate titanate, which additionally contains K and optionally Cu. The ceramic material can be used in an electroceramic component, for example a piezoelectric actuator. The invention also relates to methods for producing the ceramic material and the electronic component. | 09-25-2014 |
20140339962 | PIEZOELECTRIC DEVICE - A piezoelectric device includes a first electrode film, a piezoelectric film disposed on the first electrode film, and a second electrode film disposed on the piezoelectric film. At least one of the first and second electrode films is composed of an alloy, and a main component of the alloy is a metal selected from the group consisting of Ti, Al, Mg, and Zn. The piezoelectric film has a main composition represented by (K | 11-20-2014 |
20140368090 | PIEZOELECTRIC DEVICE AND PIEZOELECTRIC CERAMIC COMPOSITION - A piezoelectric device is provided with: a piezoelectric ceramic layer that is obtained by firing a piezoelectric ceramic composition which contains a perovskite composition and an Ag component; and a conductor layer that sandwiches the piezoelectric ceramic layer, wherein Ag is segregated in voids in a sintered body of the perovskite composition in the piezoelectric ceramic layer. The piezoelectric ceramic composition preferably contains a perovskite composition which is represented by (Pba.Rex){Zr | 12-18-2014 |
20140375172 | FLEXIBLE MOLECULAR PIEZOELECTRIC DEVICE - A piezoelectric material, comprising: a piezoelectric self-assembling monolayer of oligopeptides; a conductive surface; and a substrate, wherein the conductive surface is located between the piezoelectric self-assembling monolayer of oligopeptides and the substrate. A touch sensitive device, comprising: a first piezoelectric material, comprising: a piezoelectric self-assembling monolayer of oligopeptides containing a dipole moment; a conductive surface; and a substrate; a second piezoelectric material, comprising: a piezoelectric self-assembling monolayer of oligopeptides containing a dipole moment; a conductive surface; and s substrate, wherein the oligopeptides making up the self-assembling monolayer of the first and second piezoelectric materials, respectively, have the same amino acid sequence but have an equal and opposite dipole moment. | 12-25-2014 |
20140375173 | CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME - A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped shaped laminate in which a ceramic layer and an internal electrode are alternately laminated and an external electrode provided on a portion of a surface of the laminate and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the laminate and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component. The inner external electrode includes, as a metal component, a first metal component of which a portion forms an alloy with the internal electrode so as to connect the internal electrode and the inner external electrode to each other, and a second metal component higher in melting point than the first metal component, of which a portion forms an alloy with the first metal component so as to connect the inner external electrode and the outer external electrode to each other. A concentration of a metal in a surface layer of the inner external electrode is not lower than about 17%. | 12-25-2014 |
20150015120 | PIEZOELECTRIC ELEMENT INCLUDING FLUORORESIN FILM - There is provided a piezoelectric element, including: a porous fluororesin film made of a first fluororesin; and a nonporous fluororesin layer stacked on at least one surface of the porous fluororesin film and made of a second fluororesin, wherein the first fluororesin is different in type from the second fluororesin, and when 50 pores are selected in descending order from a pore having the longest thickness-direction length, of pores present in a cut surface of the porous fluororesin film in a thickness direction, an average value A | 01-15-2015 |
20150035414 | FILM-TYPE PIEZOELECTRIC/ELECTROSTRICTIVE ELEMENT - A film-type piezoelectric/electrostrictive element which is a fired object includes a body part, a pair of side-surface electrodes and an electrode exposed surface. The body part has n+1 layered piezoelectric/electrostrictive films and n layered internal electrode layer(s). The piezoelectric/electrostrictive films are composed of ceramic. The piezoelectric/electrostrictive films and the internal electrode layer(s) are stacked in an alternating manner. The n is an integer equal to 1 or more. The pair of side-surface electrodes is positioned on two opposing side surfaces of the body part. The two opposing side surfaces extend in a stacking direction of the body part. The internal electrode layer(s) is/are exposed on an electrode exposed surface of the body part. The electrode exposed surface extends in the stacking direction. An electrode exposure ratio of the internal electrode layer(s) on the electrode exposed surface as defined by Formula (1) being more than 0% and less than or equal to 10%. | 02-05-2015 |
20150054387 | MULTI-LAYERED THIN FILM PIEZOELECTRIC DEVICES & METHODS OF MAKING THE SAME - Multi-layered thin film piezoelectric material stacks and devices incorporating such stacks. In embodiments, an intervening material layer is disposed between two successive piezoelectric material layers in at least a portion of the area of a substrate over which the multi-layered piezoelectric material stack is disposed. The intervening material may serve one or more function within the stack including, but not limited to, inducing an electric field across one or both of the successive piezoelectric material layers, inducing a discontinuity in the microstructure between the two successive piezoelectric materials, modulating a cumulative stress of the piezoelectric material stack, and serving as a basis for varying the strength of an electric field as a function of location over the substrate. | 02-26-2015 |
20150130327 | MULTILAYER COMPONENT AND METHOD OF PRODUCING A MULTILAYER COMPONENT - A method of producing a fully active multilayer element including producing a fully active stack, and optionally sintering of the fully active stack or a green precursor thereof; applying outer electrodes onto sides A′ and C′ of the fully active stack and contacting of the uncoated inner electrodes so that the two outer electrodes electrically connect to the uncoated inner electrode layers. | 05-14-2015 |
20150145379 | ULTRASOUND VIBRATION DEVICE, METHOD OF MANUFACTURING ULTRASOUND VIBRATION DEVICE, AND ULTRASOUND MEDICAL APPARATUS - An ultrasound vibration device is provided with a stacked transducer in which a plurality of piezoelectric single crystal element layers are stacked between two metal blocks. Since each of the two metal blocks and the plurality of piezoelectric single crystal element layers is fusion-bonded relative to a stack direction by bonding metal having a melting point corresponding to half a Curie point of the plurality of piezoelectric single crystal element layers or below, it is possible to use non-lead material, reduce a processing cost and realize inexpensiveness. | 05-28-2015 |
20150364848 | CIRCUIT INTERCONNECT SYSTEM AND METHOD - A circuit interconnect generally comprises an electrical connection pad, a shape memory material, and a flowable conductor. The electrical connection pad has an upper surface, a portion of which is covered by the shape memory material. The flowable conductor extends through the shape memory material and is electrically coupled to the electrical connection pad. The shape memory material has a first configuration at a first temperature and a second configuration at a second temperature. In the instance of the second temperature being greater than the first, the shape memory material has a first configuration that is substantially planar and a second configuration that is cupped. | 12-17-2015 |
20160035961 | 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. The dielectric layer contains lead magnesate niobate-titanate represented by (1−x)Pb(Mg | 02-04-2016 |
20160064646 | PIEZOELECTRIC CERAMIC, METHOD FOR PRODUCING PIEZOELECTRIC CERAMIC, AND PIEZOELECTRIC CERAMIC ELECTRONIC COMPONENT - A piezoelectric ceramic that contains an alkali niobate compound as its main ingredient. The alkali niobate compound has a perovskite crystal structure represented by A | 03-03-2016 |
20160065173 | VIBRATING DEVICE - A vibrating device having tuning fork arms extending in a first direction that are joined to a base portion and are arranged side by side in an second direction. Each of the tuning fork arms has a structure that a silicon oxide layer is laminated on a Si layer made of a degenerate semiconductor, and that an excitation portion is provided on the silicon oxide layer. When a total thickness of the Si layer is denoted by T | 03-03-2016 |
20160099400 | CERAMIC DEVICE AND PIEZOELECTRIC DEVICE - A piezoelectric device is a fired body including a body part | 04-07-2016 |
20160111626 | FLEXIBLE CONDUCTIVE MATERIAL AND TRANSDUCER - A flexible conductive material of the present invention is formed by dispersing a conductive agent containing carbon nanotubes in a matrix that contains a polymer formed by amide bond formation or imide bond formation of a polycyclic aromatic component and an oligomer component and that has a glass transition point of 20° C. or less. The flexible conductive material of the present invention has good dispersibility of a conductive agent containing carbon nanotubes and has an excellent following performance to an expanding and shrinking substrate. A transducer of the present invention includes a dielectric layer made of a polymer, a plurality of electrodes with the dielectric layer interposed therebetween, and wirings connected to the respective electrodes, and at least either the electrodes or the wirings include the flexible conductive material of the present invention. The transducer of the present invention has a performance that is unlikely to deteriorate due to the electrodes or the wirings and has excellent durability. | 04-21-2016 |
20160141487 | MANUFACTURING METHOD FOR HIGH-TEMPERATURE PIEZOELECTRIC ELEMENT ELECTRODE AND PIEZOELECTRIC ELEMENT STRUCTURE - A manufacturing method for an electrode of a high-temperature piezoelectric element, comprises: coating traditional conductive slurry on surfaces of a molded piezoelectric material ( | 05-19-2016 |
20170236992 | Device for Precision Displacement | 08-17-2017 |