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Browse by Category: Main > Electrical & Energy
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
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
8227957 Apparatus for generating electrical energy using electrically connected nanowire and active layer and method for manufacturing the same Jul. 24, 2012
8227956 Mobile user interface with energy harvesting Jul. 24, 2012
8227955 Temperature-activated voltage generator Jul. 24, 2012
8227928 Thermo-electro-acoustic engine and method of using 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
8212456 Method of making and ceramic articles with multiple regions of distinct density Jul. 3, 2012
8212436 Apparatus for harvesting electrical power from mechanical energy Jul. 3, 2012
8207653 Piezoelectric generating apparatus Jun. 26, 2012
8203224 Power generator Jun. 19, 2012
8198788 Self-contained U or V shaped piezoelectric device for generating voltage Jun. 12, 2012
8198789 Apparatus for generating electrical energy and method for manufacturing the same Jun. 12, 2012
8193684 V-shaped or U-shaped piezoelectric device for generating an electrical voltage Jun. 5, 2012
8188636 Energy generator systems with a voltage-controlled switch May. 29, 2012
8188622 Tunable resonant frequency kinetic energy harvester May. 29, 2012
8183746 Methods and apparatus for mechanical reserve power sources for gun-fired munitions, mortars, and gravity dropped weapons May. 22, 2012
8176781 Multilayer piezoelectric thin film and method of manufacturing the same, angular velocity sensor, piezoelectric generating element, and method of generating electric power using the piezoelect May. 15, 2012
8179027 Coating for actuator and method of applying coating May. 15, 2012
8174168 Piezoelectric power generating device May. 8, 2012
8174167 Bistable piezoelectric generator May. 8, 2012
8174133 Environment friendly remote control May. 8, 2012
8154174 Bending transducer device for generating electrical energy from deformations and circuit module Apr. 10, 2012
8154176 System and method for resonance frequency tuning of resonant devices Apr. 10, 2012
8154177 Wide-band vibration energy harvester with stop Apr. 10, 2012
8143767 Compact thermoacoustic array energy converter Mar. 27, 2012
8143766 Harvesting energy from vehicular vibrations using piezoelectric devices Mar. 27, 2012
8143765 Self-powering headset, devices and related methods Mar. 27, 2012
8134281 Electrical generators for use in unmoored buoys and the like platforms with low-frequency and time-varying oscillatory motions Mar. 13, 2012
8134282 Wide-band vibration energy harvester with restoring spring Mar. 13, 2012
8129885 Electric generating unit as substitute for vehicle battery Mar. 6, 2012
8129887 System and method for harvesting energy from environmental vibrations Mar. 6, 2012
8125122 Method and circuit for energizing an electrical device Feb. 28, 2012
8120232 Sensors and actuators using piezo polymer layers Feb. 21, 2012
8110964 Energy harvesting device Feb. 7, 2012
8093784 Piezoelectric power generating element, and method of generating electric power using the piezoelectric power generating element Jan. 10, 2012
8080920 Piezoelectric vibrational energy harvesting systems incorporating parametric bending mode energy harvesting Dec. 20, 2011

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