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Class Information
Number: 310/331
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > With mechanical energy coupling means > Bending type > Plural elements
Description: Subject matter having two or more piezoelectric elements and wherein bending type mechanical stresses are produced in at least one of the elements.










Sub-classes under this class:

Class Number Class Name Patents
310/332 Multimorph 388


Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8710716 Actuator, actuator structure and method of manufacturing actuator Apr. 29, 2014
8661650 Method of making an electromechanical personal care device Mar. 4, 2014
8641388 Household electric appliance having a piezoelectric pump Feb. 4, 2014
8618716 Electromechanical motor, especially a piezoelectric microstepper drive Dec. 31, 2013
8604670 Piezoelectric ALN RF MEM switches monolithically integrated with ALN contour-mode resonators Dec. 10, 2013
8569930 Piezoelectric actuator and audio components Oct. 29, 2013
8567041 Method of fabricating a heated quartz crystal resonator Oct. 29, 2013
8552625 Cantilever type acoustic transduction apparatus Oct. 8, 2013
8513859 Interactive panel comprising a substrate and at least two piezoelectric transduction devices Aug. 20, 2013
8505190 Method of manufacturing inertial sensor Aug. 13, 2013
8501031 NBT based lead-free piezoelectric materials for high power applications Aug. 6, 2013
8471439 Active piezoelectric energy harvester with embedded variable capacitance layer and method of manufacturing the same Jun. 25, 2013
8446070 Micro-electro-mechanical device with a piezoelectric actuator May. 21, 2013
8429808 Method for fabrication an electrical transducer Apr. 30, 2013
8421313 Energy harvesting device Apr. 16, 2013
8415860 Spring disc energy harvester apparatus and method Apr. 9, 2013
8405277 Actuator Mar. 26, 2013
8390179 Piezoelectric film and method of manufacturing the same, ink jet head, method of forming image by the ink jet head, angular velocity sensor, method of measuring angular velocity by the angular Mar. 5, 2013
8378556 Actuator element and input apparatus including the same Feb. 19, 2013
8368153 Wafer level package of MEMS microphone and manufacturing method thereof Feb. 5, 2013
8356399 Method for protecting a resonating sensor Jan. 22, 2013
8358048 High speed optical scanning mirror system using piezoelectric benders Jan. 22, 2013
8336191 Method of forming an integrated circuit system Dec. 25, 2012
8324785 Piezoelectric actuators Dec. 4, 2012
8316526 Method for forming an electroactive polymer Nov. 27, 2012
8304967 Flexural vibration piece, flexural vibrator, and electronic apparatus Nov. 6, 2012
8274197 Driving device Sep. 25, 2012
8274200 Microfabricated cantilever slider with asymmetric spring constant Sep. 25, 2012
8264127 Low frequency acoustic transducer for a probe for non-destructive testing Sep. 11, 2012
8258675 Detection sensor and resonator of detection sensor Sep. 4, 2012
8246545 Ultrasound transducers with improved focus in the elevation direction Aug. 21, 2012
8222796 Micro-electro-mechanical device with a piezoelectric actuator Jul. 17, 2012
8203254 Polymer actuator device Jun. 19, 2012
8198785 MEMS switch Jun. 12, 2012
8198788 Self-contained U or V shaped piezoelectric device for generating voltage Jun. 12, 2012
8193684 V-shaped or U-shaped piezoelectric device for generating an electrical voltage Jun. 5, 2012
8169124 Physical/biochemical sensor using piezoelectric microcantilever and manufacturing method thereof May. 1, 2012
8152491 Pump using unimorph diaphragm Apr. 10, 2012
8154176 System and method for resonance frequency tuning of resonant devices Apr. 10, 2012
8148874 Microactuator having multiple degrees of freedom Apr. 3, 2012
8143765 Self-powering headset, devices and related methods Mar. 27, 2012
8107650 Piezoelectric electroacoustic transducing device Jan. 31, 2012
8106567 Switched mode power supply Jan. 31, 2012
8099854 Manufacturing method of an electromechanical transducer Jan. 24, 2012
8096034 Reversible attachment mechanisms process Jan. 17, 2012
8093784 Piezoelectric power generating element, and method of generating electric power using the piezoelectric power generating element Jan. 10, 2012
8087153 Manufacturing method of an electromechanical transducer Jan. 3, 2012
8087152 Manufacturing method of an electromechanical transducer Jan. 3, 2012
8072122 Self-powered impulse detection system with piezoelectric energy harvester Dec. 6, 2011
8063535 Nanomechanical oscillator Nov. 22, 2011

1 2 3 4 5 6 7 8 9










 
 
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