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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 8432086 |
Ferro fluid for inducing linear stress |
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 |
| 8316526 |
Method for forming an electroactive polymer |
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 |
| 8319403 |
Electroactive polymer transducers for sensory feedback applications |
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 |
| 8247952 |
Wheel with piezoelectric ring and vehicle having same |
Aug. 21, 2012 |
| 8247951 |
Piezoelectric power generation device |
Aug. 21, 2012 |
| 8247950 |
Flexible energy conversion device |
Aug. 21, 2012 |
| 8247947 |
Coupling piezoelectric material generated stresses to devices formed in integrated circuits |
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 |
| 8217784 |
Battery-less emergency distress signal and position indication broadcasting methods and devices |
Jul. 10, 2012 |
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