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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
8704427 Movement sensor Apr. 22, 2014
8704428 Widening resonator bandwidth using mechanical loading Apr. 22, 2014
8684236 Manual fluid dispenser with piezoelectric generator Apr. 1, 2014
8686620 Electric apparatus provided with power generating function Apr. 1, 2014
8680752 Piezoelectric micromechanical energy harvesters Mar. 25, 2014
8680751 Hybrid nanogenerator for harvesting chemical and mechanical energy Mar. 25, 2014
8680750 Piezoelectric power generator for feeding emergency power Mar. 25, 2014
8680694 Vibration energy harvester for converting mechanical vibrational energy into electrical energy Mar. 25, 2014
8680412 Footswitch operable to control a surgical system Mar. 25, 2014
8680749 Piezoelectric multilayer-stacked hybrid actuation/transduction system Mar. 25, 2014
8674588 Electric power generation device, electric power generation method, and electric power generation device manufacturing method Mar. 18, 2014
8669695 Piezoelectric generating element and method for estimating power generation amount of piezoelectric generating element Mar. 11, 2014
8669691 Small scale smart material actuator and energy harvesting apparatus Mar. 11, 2014
8669692 Pressure power recovery device Mar. 11, 2014
8664834 Electromechanical energy converter for generating electric energy from Mechanical Movements Mar. 4, 2014
8659210 Piezo based inertia actuator for high definition haptic feedback Feb. 25, 2014
8653718 Power generation unit, electronic apparatus, transportation unit, battery, method of controlling power generation unit Feb. 18, 2014
8653721 Apparatus for providing haptic feedback Feb. 18, 2014
8648516 Elastomeric bridge bearings having a piezoelectric device Feb. 11, 2014
8643253 Piezoelectric ultracapacitors Feb. 4, 2014
8638217 Energy harvesting, wireless structural health monitoring system with time keeper and energy storage devices Jan. 28, 2014
8633634 MEMs-based cantilever energy harvester Jan. 21, 2014
8633633 Piezoelectric based energy supply using independent piezoelectric components Jan. 21, 2014
8629600 Annular thermoacoustic energy converter Jan. 14, 2014
8624726 Battery-less emergency distress signal and position indication broadcasting methods and devices Jan. 7, 2014
8618719 Autonomous power generation unit for auxiliary system on an airborne platform Dec. 31, 2013
8610335 Electricity producing tire Dec. 17, 2013
8604674 Piezoelectric power generator and wireless sensor network apparatus Dec. 10, 2013
8604673 Power generating device, electronic apparatus, and transportation apparatus Dec. 10, 2013
8604669 Passive alternating current sensor Dec. 10, 2013
8604666 Power generating device and electronic component Dec. 10, 2013
8598768 Piezoelectric micro energy harvester and manufacturing method thereof Dec. 3, 2013
8593036 High-efficiency MEMS micro-vibrational energy harvester and process for manufacturing same Nov. 26, 2013
8581475 Generating device using piezoelectric energy harvester Nov. 12, 2013
8581474 Device and method for calculating at least one of a force and an acceleration of an object Nov. 12, 2013
8581473 System for using the air pressure acting on a vehicle in motion to produce energy Nov. 12, 2013
8575824 Piezoelectric generator, sensor node, and method of manufacturing piezoelectric generator Nov. 5, 2013
8575825 High-efficiency compact miniaturized energy harvesting and storage device Nov. 5, 2013
8569935 Piezoelectric shoe insert Oct. 29, 2013
8564178 Micro electric generator, method of providing the same, and electric generating device Oct. 22, 2013
8564179 Apparatus and method for downhole energy conversion Oct. 22, 2013
8558432 Method and apparatus of extracting an immense electric energy from piezoelectric materials in a super-gain energy system Oct. 15, 2013
8549719 Method of generating electrical energy in an integrated circuit, corresponding integrated circuit and method of fabrication Oct. 8, 2013
8546998 Sandwich piezoelectric device with solid copper electrode Oct. 1, 2013
8541927 Power generation unit and light emitting tool Sep. 24, 2013
8536765 Method and apparatus for unlocking a portable terminal using piezoelectric sensors Sep. 17, 2013
8525658 Interior tire power generation apparatus and tire monitoring system using the same Sep. 3, 2013
8525393 Bimaterial microelectromechanical system (MEMS) solar power generator Sep. 3, 2013
8525392 Generators for very-high-G energy harvesting Sep. 3, 2013
8525391 Piezoelectric power apparatus Sep. 3, 2013

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