Class / Patent application number | Description | Number of patent applications / Date published |
310345000 | Supported by elastic material | 11 |
20090267459 | COMPOSITE MATERIAL VIBRATOR - A composite material vibrator includes a vibrating component that is composed of a material having a first acoustic impedance Z | 10-29-2009 |
20110109203 | FLEXIBLE PIEZOELECTRIC STRUCTURES AND METHOD OF MAKING SAME - A flexible piezoelectric structure and a method of making the structure are disclosed. A piezoelectric film having a relatively high piezoelectric coefficient is attached to a flexible substrate. The piezoelectric film is fabricated on a different substrate and transferred to the flexible substrate by contact. | 05-12-2011 |
20110198971 | TRANSDUCER COMPRISING A COMPOSITE MATERIAL AND METHOD OF MAKING SUCH A COMPOSITE MATERIAL - The invention provides a transducer for converting between mechanical and electrical energies. The transducer comprises an EAP laminate with a layer of an elastomer material arranged between two electrode layers, each electrode layer comprising a second layer of a plastically deformable material, e.g. metal or a thermoplastic material, and a third layer of an electrically conductive material. Due to the layer of plastically deformable material, the electrode layers can be shaped into various shapes which can provide anisotropic characteristics of the transducer. | 08-18-2011 |
20110278993 | METHOD FOR MANUFACTURING COMPOSITE PIEZOELECTRIC SUBSTRATE AND PIEZOELECTRIC DEVICE - A piezoelectric device is manufactured in which the material of a supporting substrate can be selected from various alternative materials. Ions are implanted into a piezoelectric substrate to form an ion-implanted portion. A temporary supporting substrate is formed on the ion-implanted surface of the piezoelectric substrate. The temporary supporting substrate includes a layer to be etched and a temporary substrate. The piezoelectric substrate is then heated to be divided at the ion-implanted portion to form a piezoelectric thin film. A supporting substrate is then formed on the piezoelectric thin film. The supporting substrate includes a dielectric film and a base substrate. The temporary supporting substrate is made of a material that produces a thermal stress at the interface between the temporary supporting substrate and the piezoelectric thin film less than the thermal stress at the interface between the supporting substrate and the piezoelectric thin film. | 11-17-2011 |
20120074817 | ACTUATOR - An actuator includes a sheet having dielectric elastomer layers and conductive rubber layers provided on the front and back faces of each dielectric elastomer layer. The sheet is wrapped and rolled about a coil spring. The actuator expands the rolled sheet along an expansion direction of the coil spring by applying a voltage to the conductive rubber layers on the front and back faces of the dielectric elastomer layer, and contracts the rolled sheet along a contraction direction of the coil spring by stopping the application of the voltage. The actuator further includes a fiber layer located between the coil spring and the rolled sheet wrapped about the coil spring. | 03-29-2012 |
20130320810 | Piezoelectric Vibrating Component - A piezoelectric vibrating component that includes a plate-shaped seat having first and second opposed surfaces, and a piezoelectric diaphragm attached to the first surface. The piezoelectric diaphragm has an expansion vibration mode as a main vibration mode. The piezoelectric vibrating component is used with the second surface of the seat attached to a vibrated body. The seat is structured so that the piezoelectric vibrating component entirely vibrates in the expansion vibration mode as the main vibration mode when the piezoelectric diaphragm vibrates. | 12-05-2013 |
20140319971 | FRAMELESS ACTUATOR APPARATUS, SYSTEM, AND METHOD - A film actuator is disclosed. The actuator includes a frameless actuator film. The frameless actuator film includes at least one elastomeric dielectric film disposed between first and second electrodes, at least one adhesive applied on one side of the frameless actuator film. It can also include a second adhesive applied on an opposite side of the frameless actuator film. A method of making the actuator is disclosed. A configurable actuator element also is disclosed. | 10-30-2014 |
20140368087 | PIEZOELECTRIC ACTUATOR DEVICE AND METHOD FOR MANUFACTURING SAME - A piezoelectric actuator device includes a vibrator and a driver to vibrate the vibrator. The vibrator includes a lower vibration layer configured to vibrate and an upper vibration layer coupled to an upper surface of the lower vibration layer and configured to vibrate together with the lower vibration layer. The driver includes an upper electrode layer on a lower surface of the lower vibration layer, a piezoelectric layer on a lower surface of the upper electrode layer, and a lower electrode layer on a lower surface of the piezoelectric layer. The lower vibration layer of the vibrator is made of organic material. The upper vibration layer is mainly made of inorganic material. The lower vibration layer has a smaller longitudinal elastic modulus than the upper vibration layer. The piezoelectric actuator device has a large resistance to disturbance vibrations and a large warping amount of the vibrator without increasing power consumption. | 12-18-2014 |
20150035413 | PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING PIEZOELECTRIC DEVICE - A piezoelectric device includes a piezoelectric thin film formed by separating and forming a piezoelectric single crystal substrate, an inorganic layer formed on a back surface of the piezoelectric thin film, an elastic body layer disposed on a surface opposite to the piezoelectric thin film of the inorganic layer, and a support pasted to a surface opposite to the inorganic layer of the elastic body layer. In a membrane structure portion, the inorganic layer and the elastic body layer are disposed on the piezoelectric thin film through a gap layer. The elastic body layer reduces a stress caused by pasting the piezoelectric thin film including the inorganic layer and the support and has a certain elastic modulus. The inorganic layer is formed with a material having an elastic modulus higher than that of the elastic body layer and suppresses damping caused by disposing the elastic body layer. | 02-05-2015 |
20150084485 | VIBRATOR - There is provided a vibrator including: a housing having an internal space; an elastic member including a housing fixed part fixed to the housing, a piezoelectric element mounted part disposed so as to face the housing fixed part, and a weight body installed part disposed adjacent to the housing fixed part; a piezoelectric element fixed to the piezoelectric element mounted part; and a weight body fixed to the weight body installed part, wherein the elastic member has a closed curve shape. | 03-26-2015 |
20150137666 | REACTIVE IONIC LIQUID, AND ION-IMMOBILIZED METAL OXIDE PARTICLE, ION-IMMOBILIZED ELASTOMER, AND TRANSDUCER USING SAME - A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. (a) The cation (a1) is an imidazolium or quaternary ammonium cation, and (a2) comprises a reactive group that consists of an alkoxysilyl or phosphonate group. (b) The anion (b1) is a sulfonate, sulfonylimide, or nitrobenzoate anion. | 05-21-2015 |