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Class Information
Number: 310/328
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > With mechanical energy coupling means
Description: Subject matter having means to apply mechanical energy from an external source to the piezoelectric element to mechanically stress the element, or means to apply mechanical energy produced by the element to an external load.

Sub-classes under this class:

Class Number Class Name Patents
310/334 Acoustic wave type generator or receiver 1,078
310/330 Bending type 619
310/338 Force or pressure measuring type 406
310/329 Including inertia type operator 338
310/333 Shear or torsional type 207
310/339 Voltage, spark or current generator 595

Patents under this class:

Patent Number Title Of Patent Date Issued
8704430 Piezoceramic multilayer actuator with high reliability Apr. 22, 2014
8692442 Polymer transducer and a connector for a transducer Apr. 8, 2014
8689639 Ultrasonic transducer having a matching layer between a piezoelectric element and a coupling element Apr. 8, 2014
8680749 Piezoelectric multilayer-stacked hybrid actuation/transduction system Mar. 25, 2014
8680741 Haptic actuator using cellulose electro-active paper film Mar. 25, 2014
8674586 Motor device, apparatus and driving method for rotor Mar. 18, 2014
8674585 Electromechanical motor especially a piezoelectric microstepper motor Mar. 18, 2014
8669694 Multi-layer electronic component and method for manufacturing the same Mar. 11, 2014
8669691 Small scale smart material actuator and energy harvesting apparatus Mar. 11, 2014
8669690 Piezolelectric sound-generating device Mar. 11, 2014
8669689 Mountable arm smart material actuator and energy harvesting apparatus Mar. 11, 2014
8664833 Power supplier using flexible PCB based on self-powering and sensor node using the same Mar. 4, 2014
8664832 Mechanical temperature compensation methods and devices Mar. 4, 2014
8664831 Electromechanical motor, especially a piezoelectric microstepper drive Mar. 4, 2014
8659209 Transducer Feb. 25, 2014
8653719 Active 3D.O.F. stiffness element Feb. 18, 2014
8648517 Multilayer piezoelectric element and injector using the same Feb. 11, 2014
8643253 Piezoelectric ultracapacitors Feb. 4, 2014
8638026 Stage drive device Jan. 28, 2014
8638025 Piezo actuator with external electrode soldered to outer face Jan. 28, 2014
8633636 Laminated ceramic electronic component and manufacturing method thereof Jan. 21, 2014
8624468 Electromechanical materials and devices including the same Jan. 7, 2014
8624467 Methods, systems, and devices for mechanical motion amplification Jan. 7, 2014
8618718 Transducer Dec. 31, 2013
8618717 System and method for connection to a wireless network Dec. 31, 2013
8618716 Electromechanical motor, especially a piezoelectric microstepper drive Dec. 31, 2013
8614536 Piezoelectric element, and piezoelectric actuator and vibration wave motor including piezoelectric element Dec. 24, 2013
8604669 Passive alternating current sensor Dec. 10, 2013
8604668 Piezoelectric element, piezoelectric sensor, electronic device, and method for manufacturing piezoelectric element Dec. 10, 2013
8600428 Method, apparatus, and system for initializing cognitive system supported by cognitive pilot channel Dec. 3, 2013
8598767 Piezoelectric actuator Dec. 3, 2013
8593037 Resonator with a fluid cavity therein Nov. 26, 2013
8593035 Phased array buckling actuator Nov. 26, 2013
8593034 Carbon nanotube based electrostrictive composite and electrostrictive element using the same Nov. 26, 2013
8593033 Multi-element, stick-slip piezo motor Nov. 26, 2013
8584331 In situ flexible circuit embossing to form an electrical interconnect Nov. 19, 2013
8581471 Piezoelectric fan and cooling device Nov. 12, 2013
8577531 Method for the automatic control of wheel brake-slip and wheel brake-slip control system for a motor vehicle with an electric drive Nov. 5, 2013
8575823 Laminated piezoelectric material, ultrasound probe, and ultrasound diagnostic apparatus Nov. 5, 2013
8575821 Piezoelectric actuator and piezoelectric actuator array Nov. 5, 2013
8569933 Piezoelectric multilayer component Oct. 29, 2013
8569932 Multi-axis actuating apparatus Oct. 29, 2013
8569931 Piezoelectric vibrator and electronic device using same Oct. 29, 2013
8567041 Method of fabricating a heated quartz crystal resonator Oct. 29, 2013
8564179 Apparatus and method for downhole energy conversion Oct. 22, 2013
8564176 Piezoelectric MEMS switch and method of manufacturing piezoelectric MEMS switch Oct. 22, 2013
8564175 Electronic device Oct. 22, 2013
8562546 System and method for evaluating tissue Oct. 22, 2013
8560004 Sensor-based activation of an input device Oct. 15, 2013
8555718 Piezoelectric transducers Oct. 15, 2013

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