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Class Information
Number: 310/366
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > Electrode arrangement > More than two
Description: Subject matter where the device has three or more separate electrodes.

Patents under this class:

Patent Number Title Of Patent Date Issued
8710761 Circuit arrangement for a piezo transformer, and method therefor Apr. 29, 2014
8704430 Piezoceramic multilayer actuator with high reliability Apr. 22, 2014
8704423 Asymmetric dielectric elastomer composite material Apr. 22, 2014
8681586 Free charge carrier diffusion response transducer for sensing gradients Mar. 25, 2014
8677604 Method of manufacturing boundary acoustic wave device Mar. 25, 2014
8664837 Piezoelectric device and method for fabricating the same Mar. 4, 2014
8659214 Piezoelectric actuator including double PZT piezoelectric layers with different permitivities and its manufacturing method Feb. 25, 2014
8633636 Laminated ceramic electronic component and manufacturing method thereof Jan. 21, 2014
8610337 Piezoelectric device and method for manufacturing same Dec. 17, 2013
8604668 Piezoelectric element, piezoelectric sensor, electronic device, and method for manufacturing piezoelectric element Dec. 10, 2013
8604667 Ultrasonic motor and electronic apparatus which mounts the motor thereon Dec. 10, 2013
8601872 Vibratory gyroscope using piezoelectric film Dec. 10, 2013
8593037 Resonator with a fluid cavity therein Nov. 26, 2013
8584330 Method for manufacturing a piezoelectric actuator Nov. 19, 2013
8575820 Stacked bulk acoustic resonator Nov. 5, 2013
8569937 Piezoelectric resonator with capacitive sense and/or force rebalance electrodes to control an amplitude of vibration Oct. 29, 2013
8569927 Piezoelectric actuator unit and liquid transporting apparatus Oct. 29, 2013
8567922 Piezoelectric actuator unit and method for testing piezoelectric actuator unit Oct. 29, 2013
8551041 Navigable system for catheter based endovascular neurosurgery Oct. 8, 2013
8551003 Ultrasonic probe and ultrasonic diagnosis device Oct. 8, 2013
8549716 Method for manufacturing a piezoelectric actuator Oct. 8, 2013
8542070 Piezoelectric vibrator, oscillator, electronic apparatus, and radio-controlled timepiece Sep. 24, 2013
8519599 Piezoelectric actuator unit and liquid transporting apparatus Aug. 27, 2013
8513863 Piezoelectric resonator with two layers Aug. 20, 2013
8502434 Multi-layer piezoelectric element, method for manufacturing the same, injection apparatus and fuel injection system Aug. 6, 2013
8497747 Microelectromechanical filter formed from parallel-connected lattice networks of contour-mode resonators Jul. 30, 2013
8492955 Piezoelectric component comprising security layer and method for the production thereof Jul. 23, 2013
8482357 Transverse acoustic wave resonator, oscillator having the resonator and method for making the resonator Jul. 9, 2013
8476804 Piezoelectric MEMS element, voltage control oscillator, communication apparatus, and method of manufacturing piezoelectric drive type MEMS element Jul. 2, 2013
8471440 Magnetic head driving piezoelectric ceramic actuator Jun. 25, 2013
8471437 Piezoelectric component and method for producing an electrical contact Jun. 25, 2013
8466605 Patterned ultrasonic transducers Jun. 18, 2013
8461745 Piezoceramic surface actuator and method for the production thereof Jun. 11, 2013
8458889 Actuator manufacturing method Jun. 11, 2013
8450913 Tunable Piezoelectric MEMS Resonators suitable for real-time clock applications May. 28, 2013
8450908 Multi-layer piezoelectric element with metal parts or ceramic parts bonded to only one piezoelectric material layer May. 28, 2013
8446077 3-D woven active fiber composite May. 21, 2013
8446075 Conductive film, and transducer and flexible wiring board using the same May. 21, 2013
8446071 Thermally enhanced ultrasound transducer system May. 21, 2013
8441175 Piezoactuator having electrical contact May. 14, 2013
8441174 Multilayer piezoelectric element and injector using the same May. 14, 2013
8432085 Multi-layer piezoelectric element having low rigidity metal layers, and ejection apparatus and fuel ejection system that employ the same Apr. 30, 2013
8421310 Multi-layer piezoelectric element, ejection apparatus using the same and fuel ejection system Apr. 16, 2013
8410671 Vibratory actuator Apr. 2, 2013
8410663 Piezoelectric actuator unit having a stress relieving layer and method for manufacturing the same Apr. 2, 2013
8410563 Apparatuses for generating electrical energy Apr. 2, 2013
8405287 Laminated piezoelectric element, injection device having the element, and fuel injection system Mar. 26, 2013
8405278 Multi-layer piezoelectric element, ejection device having the element, and fuel ejection system Mar. 26, 2013
8397373 Method for manufacturing a multilayer polymeric actuator Mar. 19, 2013
8395301 High power single crystal piezoelectric transformer Mar. 12, 2013

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