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Class Information
Number: 310/339
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > With mechanical energy coupling means > Voltage, spark or current generator
Description: Subject matter wherein mechanical energy from an external source is applied to the piezoelectric element to produce an electric potential difference between at least two electrically accessible points on the surface of the element.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8432073 Power generating device Apr. 30, 2013
8432049 Electrical generator Apr. 30, 2013
8427034 Flooring systems and methods of making and using same Apr. 23, 2013
8421313 Energy harvesting device Apr. 16, 2013
8415861 Wave power generator Apr. 9, 2013
8415860 Spring disc energy harvester apparatus and method Apr. 9, 2013
8415859 Piezoelectric nanodevices Apr. 9, 2013
8410661 Method of generating electrical energy in an integrated circuit, corresponding integrated circuit and method of fabrication Apr. 2, 2013
8410667 Electrical generators for low-frequency and time-varying rocking and rotary motions Apr. 2, 2013
8405279 Coupling piezoelectric material generated stresses to devices formed in integrated circuits Mar. 26, 2013
8400046 Power generation unit Mar. 19, 2013
8395587 Haptic response apparatus for an electronic device Mar. 12, 2013
8378558 Thermoelectric generator Feb. 19, 2013
8373332 Energy harvesting electric device Feb. 12, 2013
8368290 Rectifier-free piezoelectric energy harverster and battery charger Feb. 5, 2013
8358049 Energy converters and associated methods Jan. 22, 2013
8354776 Apparatus for generating electrical energy and method for manufacturing the same Jan. 15, 2013
8351207 Heat pipe capable of transforming dynamic energy into electric energy and related heat-dissipating module Jan. 8, 2013
8344586 Temperature-activated voltage generator Jan. 1, 2013
8344597 Matrix-assisted energy conversion in nanostructured piezoelectric arrays Jan. 1, 2013
8344598 Piezoelectric power generation device Jan. 1, 2013
8334638 Piezoelectric power generation device Dec. 18, 2012
8330335 Piezo magnetostrictive device Dec. 11, 2012
8330334 Apparatus employing piezoelectric energy harvester capable of generating voltage to drive power conditioning circuit and method of manufacturing the same Dec. 11, 2012
8324788 Piezoelectric power generator Dec. 4, 2012
8319403 Electroactive polymer transducers for sensory feedback applications Nov. 27, 2012
8319401 Air movement energy harvesting with wireless sensors Nov. 27, 2012
8319402 Bowl-shaped wide-band vibration energy harvester Nov. 27, 2012
8316526 Method for forming an electroactive polymer Nov. 27, 2012
8314722 Keyboard based in polymer, copolymer or composites with piezo- and/or pyroelectric properties and respective use Nov. 20, 2012
8310114 Power generating device Nov. 13, 2012
8304964 Mobile device and power supply device with converter for converting energy of mechanical movement into electrical energy Nov. 6, 2012
8294336 Piezoelectric windmill apparatus Oct. 23, 2012
8288923 Piezoelectric based energy supply using independent piezoelectric components Oct. 16, 2012
8283840 High-efficiency compact miniaturized energy harvesting and storage device Oct. 9, 2012
8278800 Multi-layer piezoelectric generator Oct. 2, 2012
8269399 Systems and apparatus for harvesting energy Sep. 18, 2012
8269401 Graphene power-mill system Sep. 18, 2012
8253307 Circuits for harvesting energy from piezoelectric devices Aug. 28, 2012
8247947 Coupling piezoelectric material generated stresses to devices formed in integrated circuits Aug. 21, 2012
8247950 Flexible energy conversion device Aug. 21, 2012
8247951 Piezoelectric power generation device Aug. 21, 2012
8247952 Wheel with piezoelectric ring and vehicle having same Aug. 21, 2012
8237337 Holster-integrated piezoelectric energy source for handheld electronic device Aug. 7, 2012
8232706 Autonomous power generation unit for auxiliary system on an airborne platform Jul. 31, 2012
8227928 Thermo-electro-acoustic engine and method of using same Jul. 24, 2012
8227955 Temperature-activated voltage generator Jul. 24, 2012
8227956 Mobile user interface with energy harvesting Jul. 24, 2012
8227957 Apparatus for generating electrical energy using electrically connected nanowire and active layer and method for manufacturing the same Jul. 24, 2012
8222775 Electromechanical energy harvesting system Jul. 17, 2012

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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