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Class Information
Number: 310/332
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > With mechanical energy coupling means > Bending type > Plural elements > Multimorph
Description: Subject matter having at least two piezoelectric elements so joined and oriented that one expands while the other contracts to produce a bending type mechanical stress in the composite structure.










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

Patent Number Title Of Patent Date Issued
8710716 Actuator, actuator structure and method of manufacturing actuator Apr. 29, 2014
8669690 Piezolelectric sound-generating device Mar. 11, 2014
8661650 Method of making an electromechanical personal care device Mar. 4, 2014
8659211 Quad and dual cantilever transduction apparatus Feb. 25, 2014
8604670 Piezoelectric ALN RF MEM switches monolithically integrated with ALN contour-mode resonators Dec. 10, 2013
8575822 Piezoelectric/electrostrictive actuator Nov. 5, 2013
8575823 Laminated piezoelectric material, ultrasound probe, and ultrasound diagnostic apparatus Nov. 5, 2013
8569937 Piezoelectric resonator with capacitive sense and/or force rebalance electrodes to control an amplitude of vibration Oct. 29, 2013
8567041 Method of fabricating a heated quartz crystal resonator Oct. 29, 2013
8562546 System and method for evaluating tissue Oct. 22, 2013
8558707 Thermal cutoff fuse for arbitrary temperatures Oct. 15, 2013
8552625 Cantilever type acoustic transduction apparatus Oct. 8, 2013
8549728 Manufacturing method for vibration body and manufacturing method for vibration actuator Oct. 8, 2013
8541926 Nano/micro electro-mechanical relay Sep. 24, 2013
8531088 Piezoelectric MEMS microphone Sep. 10, 2013
8505190 Method of manufacturing inertial sensor Aug. 13, 2013
8487508 Method and system for monitoring environmental conditions while ignoring irrelevant ranges Jul. 16, 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
8405277 Actuator Mar. 26, 2013
8400046 Power generation unit Mar. 19, 2013
8336191 Method of forming an integrated circuit system Dec. 25, 2012
8316526 Method for forming an electroactive polymer Nov. 27, 2012
8274200 Microfabricated cantilever slider with asymmetric spring constant Sep. 25, 2012
8261428 Method for assembling a 3-dimensional microelectrode structure Sep. 11, 2012
8237332 Piezoelectric acoustic transducer and method of fabricating the same Aug. 7, 2012
8222796 Micro-electro-mechanical device with a piezoelectric actuator Jul. 17, 2012
8222797 Information processor and method for the production thereof Jul. 17, 2012
8210831 Piezoelectric pump Jul. 3, 2012
8199020 Thermal cutoff fuse for arbitrary temperatures Jun. 12, 2012
8198785 MEMS switch Jun. 12, 2012
8184009 Humidity-sensitive cutoff fuse May. 22, 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
8125121 Switching element, method for manufacturing the same, and display device including switching element Feb. 28, 2012
8107650 Piezoelectric electroacoustic transducing device Jan. 31, 2012
8099854 Manufacturing method of an electromechanical transducer Jan. 24, 2012
8102098 Piezoelectric-driven MEMS element Jan. 24, 2012
8087152 Manufacturing method of an electromechanical transducer Jan. 3, 2012
8087153 Manufacturing method of an electromechanical transducer Jan. 3, 2012
RE42916 Single bar type vibrating element angular rate sensor system Nov. 15, 2011
8053949 Electronic control device for a piezo-ceramic bending transducer designed as a trimorph Nov. 8, 2011
8022600 Piezoelectric power generating mechanism with spring material Sep. 20, 2011
8020266 Method of producing a device Sep. 20, 2011
7999443 Electromechanical actuators and manufacturing method thereof Aug. 16, 2011
7999442 Piezoelectric actuator and electronics device using the same Aug. 16, 2011
7982375 Integrated actuator sensor structure Jul. 19, 2011
7956759 Humidity sensitive cutoff fuse Jun. 7, 2011

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