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Class Information
Number: 310/326
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > Combined with damping structure
Description: Subject matter having the piezoelectric element combined with structure designed to absorb, or attenuate undesired energy emanated from or applied to the element.


Sub-classes under this class:

Class Number Class Name Patents
310/327 On back of piezoelectric element 176


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
7411335 Sonic or ultrasonic transducer Aug. 12, 2008
7411332 Electroactive polymer animated devices Aug. 12, 2008
7400217 Decoupled stacked bulk acoustic resonator band-pass filter with controllable pass bandwith Jul. 15, 2008
7368854 Actuator May. 6, 2008
7358645 Backing, transducer array and method for thermal survival Apr. 15, 2008
7312556 Ultrasonic probe and manufacturing process thereof Dec. 25, 2007
7304413 Piezooscillator Dec. 4, 2007
7233828 Self-contained electrotherapy Jun. 19, 2007
7233829 Electric field shark repellent wet suit Jun. 19, 2007
7190105 Sound or ultrasound sensor Mar. 13, 2007
7187108 Ultrasonic probe Mar. 6, 2007
7186131 Vibration isolated transducer connector Mar. 6, 2007
7175105 Actuator for a fuel injector of an internal combustion engine Feb. 13, 2007
7161447 Piezoelectric resonator, piezoelectric filter, and communication apparatus Jan. 9, 2007
7132780 Method for obtaining biometric data for an individual in a secure transaction Nov. 7, 2006
7127948 Piezoelectric sensor, sensor array, and associated method for measuring pressure Oct. 31, 2006
7103960 Method for providing a backing member for an acoustic transducer array Sep. 12, 2006
7082810 Gas sensor Aug. 1, 2006
7080849 Ski, method of stiffening the ski and method of manufacturing the ski Jul. 25, 2006
7029598 Composite material for piezoelectric transduction Apr. 18, 2006
7019621 Methods and apparatus to increase sound quality of piezoelectric devices Mar. 28, 2006
7019605 Stacked bulk acoustic resonator band-pass filter with controllable pass bandwidth Mar. 28, 2006
7009326 Ultrasonic vibration apparatus use as a sensor having a piezoelectric element mounted in a cylindrical casing and grooves filled with flexible filler Mar. 7, 2006
6995497 Film bulk acoustic resonator Feb. 7, 2006
6984923 Broadband and wide field of view composite transducer array Jan. 10, 2006
6962297 Piezoelectric actuator module Nov. 8, 2005
6958567 Active/passive distributed absorber for vibration and sound radiation control Oct. 25, 2005
6897601 Piezoelectric element and an oscillation transducer with a piezoelectric element May. 24, 2005
6897599 System for damping oscillations May. 24, 2005
6859984 Method for providing a matrix array ultrasonic transducer with an integrated interconnection means Mar. 1, 2005
6830351 Electronic vibration dampening central rearview reinforcing assembly Dec. 14, 2004
6817542 Valve for regulating fluids Nov. 16, 2004
6788170 Resonator structure having a dampening material and a filter having such a resonator structure Sep. 7, 2004
6759791 Multidimensional array and fabrication thereof Jul. 6, 2004
6734602 Linear magnetostrictive actuator May. 11, 2004
6717337 Piezoelectric acoustic actuator Apr. 6, 2004
6707230 Closed loop control systems employing relaxor ferroelectric actuators Mar. 16, 2004
6700304 Active/passive distributed absorber for vibration and sound radiation control Mar. 2, 2004
6681631 Piezoelectric sensor Jan. 27, 2004
6661157 Active anti-vibration system for cutting tools utilizing piezo-electric elements Dec. 9, 2003
6644327 Ultrasonic cleaner and wet treatment nozzle comprising the same Nov. 11, 2003
6633107 Low noise transformer Oct. 14, 2003
6612539 Fuel injection valve Sep. 2, 2003
6598717 Active-passive hybrid constrained layer for structural damping augmentation Jul. 29, 2003
6571444 Method of manufacturing an ultrasonic transducer Jun. 3, 2003
6563250 Piezoelectric damping system for reducing noise transmission through structures May. 13, 2003
6547208 Motor mounting assembly Apr. 15, 2003
6543087 Micro-electromechanical hinged flap structure Apr. 8, 2003
6534900 Piezoresonator Mar. 18, 2003
6485380 Sports implement Nov. 26, 2002

1 2 3 4 5 6


 
 
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