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| Number | Title | Issue Date |
| 8188637 | Laminated piezoelectric element with porous sections A laminated piezoelectric element having a laminated structure in which a plurality of piezoelectric layers and a plurality of internal electrodes are alternately laminated is provided. This laminated structure has an opposing section wherein an internal electrode o... | 05/29/2012 |
| 8169123 | Multilayered piezoelectric element and method of manufacturing the same In a multilayered piezoelectric element, a side insulating film is accurately formed even on a thin multilayered structure. The element includes: a multilayered structure having a step formed on a side surface of the multilayered structure such that an end of an int... | 05/01/2012 |
| 8159114 | Transducer A multistage flextensional transducer includes at least one inner elongate driver member within and mechanically coupled to an inner shell that is nested within an outer shell; the inner shell comprising a pair of contact portions abutting the driver member and a pa... | 04/17/2012 |
| 8154173 | Mechanically amplified piezoelectric transducer A piezoelectric transducer having a component therein for amplifying the deformation of the piezoelectric element so as to increase the available transducer stroke. This amplification of the piezoelectric element may be provided by a mechanical amplifier coupled to ... | 04/10/2012 |
| 8143764 | Flat stacked-type conductive polymer actuator A first conductive polymer film, a plate-shaped first porous member, a second conductive polymer film, and a plate-shaped second porous member are stacked on one another, and the adjacent members are connected with each other on first end portions so as to form a zi... | 03/27/2012 |
| 8143763 | Linear piezoelectric nano-positioner A linear piezoelectric nano-positioner includes an armature configured to be translated along a longitudinal axis and having oppositely-disposed bearing surfaces and oppositely-disposed piezo surfaces, bearing sets engaged with the bearing surfaces of the armature t... | 03/27/2012 |
| 8129884 | Piezoelectric actuator unit including a casting compound disposed in a sleeve A piezoelectric actuator unit includes a piezoactuator and a casting compound enclosing the piezoactuator. The casting compound is disposed in a sleeve that includes a hydrophobic material. ... | 03/06/2012 |
| 8129883 | Piezoelectric stack and method for producing a piezoelectric stack A piezoelectric stack (1) has alternately successive piezoelectric layers (2) and inner electrode layers (3, 4) which are alternately electrically connected to two outer electrodes (7, 8) which are arranged on the outer side (5, 6)... | 03/06/2012 |
| 8106565 | Piezoceramic multilayer actuator with stress relief sections and insulation layers in sections without relief zones In a piezoelectric multilayer actuator (1) having micromechanical relief zones (30) and an insulation layer (40) as well as in a method for producing said actuator, as a result of the micromechanical relief zones (30), poling cracks are c... | 01/31/2012 |
| 8106566 | Piezoelectric component with outer contacting, having gas-phase deposition, method for manufacturing component and use of component A piezoelectric component with at least one fully active piezoelement has electrode layers and interposed piezoelectric layers guided to a lateral edge of the piezoelement and contacted there. An insulating layer applied for electric contacting has an electric throu... | 01/31/2012 |
| 8093783 | Electroactive polymer device 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... | 01/10/2012 |
| 8089199 | Mechanical design of laminar weak-link rotary mechanisms with ten-degree-level travel range and ten-nanoradian-level positioning resolution Enhanced mechanical designs are provided for weak-link rotary mechanisms for implementing angular rotations with a defined angular travel range and positioning resolution, for example, with ten-degree-level travel range and ten-nanoradian-level positioning resolutio... | 01/03/2012 |
| 8080918 | Apparatus and method for controlling the machining of workpieces using piezoceramic transducers Patterns detection to input data containing a plurality of transactions, each transaction having at least one item, is carried out in the following way. Filter conditions for interesting patterns are received, and a first wet of filter conditions applicable in conne... | 12/20/2011 |
| 8080919 | Piezoelectric multilayer component A piezoelectric multilayer component includes a stack of piezoceramic layers and electrode layers arranged one above another. At least one piezoceramic layer is printed with a layer structured according to a predefined pattern in a piezoelectrically inactive zone of... | 12/20/2011 |
| 8072120 | Multiple degrees of freedom motion system A multiple degrees of freedom motion system comprising an arrangement of rigid stages, flexure constraint modules, actuators, and sensors. These components of the motion system are arranged and connected in a systematic fashion to provide a high degree of decoupling... | 12/06/2011 |
| 8067875 | Networked structure of electroactive polymer-based artificial neuromuscular units An artificial neuromuscular unit (ANMU) network comprising: a plurality of ANMUs, wherein each ANMU comprises an electroactive polymer (EAP) actuator layer and a uniquely addressable EAP logic layer coupled to the actuator layer; a plurality of inert, non-ion-conduc... | 11/29/2011 |
| 8063539 | Electrostrictive drive An apparatus for producing a holding or transmission frame (12, 20) for an electrostrictive actuator, in particular, a stacked piezoactuator (5) includes the following steps: a) a winding spindle (52), corresponding to the shape of the inner per... | 11/22/2011 |
| 8058775 | Movable table unit with piezoelectric element and strain gauge A movable table unit provided here has a simple structure but can increase the precision of detecting the displacement of a movable table, and comprises a quadrangle frame-shaped stationary base a movable table disposed inside the stationary base, spring members int... | 11/15/2011 |
| 8022597 | Driver A driving apparatus (100) is provided with: a base portion (110); a stage portion (130) on which a driven object (12) is mounted and which can be displaced; an elastic portion (120) which connects the base portion and the stage por... | 09/20/2011 |
| 8022598 | Piezoelectric multilayer component having a disturbance material and method of forming same A piezoelectric multilayer component includes a stack of piezoceramic layers, which are arranged one on top of the other, and electrode layers. The stack has a first area and a second area. The second area contains a disturbance material, which is used to make the s... | 09/20/2011 |
| 8004153 | Fine positioning system using an inertial motor based on a mechanical amplifier The invention relates to a fine positioning system using an inertial motor based on a mechanical amplifier that comprises a first amplified inertial sub-assembly including a mechanical amplifier, a piezoactive member and a countermass. A second relative drive sub-as... | 08/23/2011 |
| 8004155 | 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 ... | 08/23/2011 |
| 8004154 | Piezoelectric actuation structure including an integrated piezoresistive strain gauge and its production method The invention relates to a piezoelectric actuation structure including at least one strain gauge and at least one actuator produced from a stack on the surface of a substrate of at least one layer of piezoelectric material arranged between a bottom electrode layer a... | 08/23/2011 |
| 7999441 | Piezoelectric actuator and liquid discharge head using the same The piezoelectric actuator includes a piezoelectric film between two electrode layers and a diaphragm. Assuming that: each elastic coefficient of all materials is isotropic and a distortion amount of the piezoelectric film by an electric field is isotropic in all in... | 08/16/2011 |
| 7994688 | Mechanical design of laminar weak-link mechanisms with centimeter-level travel range and sub-nanometer positioning resolution An enhanced mechanical design for laminar weak-link mechanisms with centimeter-level travel range and sub-nanometer positioning resolution is provided. A multiple parallelogram weak-link structure includes a predefined pattern of a plurality of perpendicularly arran... | 08/09/2011 |
| 7990023 | Arrangement with a coated piezoelectric actuator An arrangement is proposed for forming a piezoelectric actuator, which has at least one piezoelectric element that in each case consists of a multi-layer structure of piezoelectric-layers, wherein internal electrodes arranged between the piezoelectric-layers in the ... | 08/02/2011 |
| 7982367 | Piezoelectric/electrostrictive element having a multilayer external electrode structure and method for manufacturing thereof Disclosed is a piezoelectric/electrostrictive element equipped with a piezoelectric/electrostrictive drive unit having a piezoelectric/electrostrictive body, and a film external terminal electrode containing substantially no glass component and being disposed on at ... | 07/19/2011 |
| 7969066 | Multilayer peiezoelectric actuator having a stress-absorbing external-electrode member with portions thereof not bonded to a base electrode In a multilayer piezoelectric actuator, external electrodes are formed on external surfaces of a multilayer piezoelectric body in which a plurality of internal electrodes and a plurality of piezoelectric layers are stacked on top of one another. Each of the external... | 06/28/2011 |
| 7960898 | Driving apparatus, lens driving apparatus and image pickup apparatus A driving apparatus comprises an actuator, the actuator comprising an electromechanical conversion element and a driving shaft attached to the electromechanical conversion element, wherein the driving apparatus expands and contracts the electromechanical conversion ... | 06/14/2011 |
| 7960899 | Piezoelectric multilayer component with stresses running perpendicular to stacking direction A piezoelectric multilayer component has a base body with a stack of piezoceramic layers and electrode layers arranged one on top of the other in an alternating manner. Neighboring layers of the stack are braced against one another such that stresses run perpendicul... | 06/14/2011 |
| 7948151 | Electroactive polymer-based artificial neuromuscular unit An artificial neuromuscular unit (ANMU) comprising: an electroactive polymer (EAP) actuator layer; an EAP logic layer coupled to the actuator layer; an EAP energy layer coupled to the logic layer such that the logic layer is interposed between the energy layer and t... | 05/24/2011 |
| 7948150 | Piezoceramic multilayer actuator and method of manufacturing a piezoceramic multilayer actuator A piezoceramic multilayer actuator (10) includes a plurality of green layers, wherein the green layers are to be converted to piezoceramic layers (12) with a piezoceramic material in a subsequent step of heating. A security layer material mixture with ... | 05/24/2011 |
| 7944120 | Driving apparatus, and manufacturing method of the same A driving apparatus comprises: an electromechanical conversion element that expands and contracts in an extending direction of a given fiducial line; a driving shaft mounted on one end of the electromechanical conversion element in the extending direction; a driven ... | 05/17/2011 |
| 7944121 | Negative vertical deflection piezoelectric MEMS actuators and method of fabrication Co-fabricating of vertical piezoelectric MEMS actuators that achieve large positive and negative displacements through operating electric fields in excess of the coercive field includes forming a large negative displacement vertical piezoelectric MEMS actuator, form... | 05/17/2011 |
| 7939992 | Electrical switch element, particularly a relay, with swivelling lever switch mechanism An electrical switch element, particularly a relay, is provided with an actuator with a switch contact and a switch mechanism. The switch mechanism translates a driving movement of the actuator into a switching movement of the switch contact so that the switch conta... | 05/10/2011 |
| 7936108 | Multi-layer piezoelectric element with electrodes made of glass and conductive material 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 ... | 05/03/2011 |
| 7923901 | Solid-state actuator drive apparatus A solid-state actuator drive apparatus has—a shaft, —a pivot bearing for supporting the shaft, —a drive body, —at least two actuators for the excitation of the drive body and the shaft relative to each other for causing the shaft to rotate relative to the dr... | 04/12/2011 |
| 7923902 | High-performance electroactive polymer transducers Electroactive polymer constructions that convert electrical energy to mechanical energy and vice versa are disclosed. The subject transducers (actuators, generators, sensors or combinations thereof) share the requirement of a frame or fixture element used in preload... | 04/12/2011 |
| 7919903 | MEMS switch A Micro Electro Mechanical System (MEMS) switch includes a substrate, a fixed signal line formed on the substrate, a movable signal line spaced apart from one of an upper surface and a lower surface of the fixed signal line, and at least one piezoelectric actuator c... | 04/05/2011 |
| 7915790 | Electroactive polymer transducers biased for increased output Electroactive polymer transducers are disclosed. They are biased in a manner that provides for increased force and/or stroke output, thereby offering improved work potential and power output capacity. The biasing may offer additional or alternate functional advantag... | 03/29/2011 |
