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Class Information
Number: 310/317
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > Electrical systems > Input circuit for mechanical output from piezoelectric element
Description: Subject matter having electric circuit elements for driving the piezoelectric element for the purpose of producing a usable mechanical output therefrom.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8704780 Haptic feedback device and electronic device Apr. 22, 2014
8704425 Ultrasonic device for cutting and coagulating with stepped output Apr. 22, 2014
8681586 Free charge carrier diffusion response transducer for sensing gradients Mar. 25, 2014
8680747 Output adjustment circuit, ultrasonic transducer device component, and ultrasonic transducer device Mar. 25, 2014
8664830 Ultrasonic device Mar. 4, 2014
8657027 Single piezo-actuator rotary-hammering (SPaRH) drill Feb. 25, 2014
8659208 Waveform generator for driving electromechanical device Feb. 25, 2014
8610332 Positioning system and method Dec. 17, 2013
8612166 Test bed for electrical energy storage systems for vehicles Dec. 17, 2013
8604665 Piezoelectric actuator for an ultrasonic motor Dec. 10, 2013
8587180 Pressure control valve driving circuit for pressure type flow rate control device with flow rate self-diagnosis function Nov. 19, 2013
8587181 Piezo-electric actuator drive circuit and piezo-electric actuator device furnished with same Nov. 19, 2013
8575819 Microelectromechanical resonators with passive frequency tuning using built-in piezoelectric-based varactors Nov. 5, 2013
8567922 Piezoelectric actuator unit and method for testing piezoelectric actuator unit Oct. 29, 2013
8555724 Ultrasonic sensor Oct. 15, 2013
8558430 Resonant motor unit and electric device with resonant motor unit Oct. 15, 2013
8558431 Output adjustment circuit, ultrasonic transducer device component, and ultrasonic transducer device Oct. 15, 2013
8552619 Driving circuit for vibration-type actuator Oct. 8, 2013
8550056 Electric circuit for triggering a piezoelectric element, in particular a fuel injection system of a motor vehicle Oct. 8, 2013
8546996 Devices and techniques for cutting and coagulating tissue Oct. 1, 2013
8541925 Piezoelectric element driving circuit Sep. 24, 2013
8525386 Dynamically adjustable orthotic device Sep. 3, 2013
8513855 Control device for suppression of residual vibration of piezoelectric transducer Aug. 20, 2013
8513854 Piezoelectric driver Aug. 20, 2013
8508103 Piezoelectric identification device and applications thereof Aug. 13, 2013
8508104 Piezoelectric actuator driver circuit Aug. 13, 2013
8487510 Driving device Jul. 16, 2013
8483933 Method for operating a fuel injector Jul. 9, 2013
8482183 Test substrate and method for measuring contact force Jul. 9, 2013
8479364 Piezoelectric/electrostrictive element and method of manufacturing the same Jul. 9, 2013
8480586 Ultrasound diagnosis apparatus Jul. 9, 2013
8471436 Piezoelectric element drive circuit and foreign substance removing apparatus Jun. 25, 2013
8466601 Operating method and driving means of a piezolinear drive Jun. 18, 2013
8456772 Piezoelectric actuator, lens barrel, and camera Jun. 4, 2013
8450905 Methods for controlling velocity of at least partially resonant actuators systems and systems thereof May. 28, 2013
8446066 Ultrasonic motor May. 21, 2013
8446067 Ultrasonic motor May. 21, 2013
8441169 Voltage converter and driving system using such voltage converter May. 14, 2013
8427033 Domestic appliance comprising a piezoelectric pump provided with a simplified power supply circuit Apr. 23, 2013
8395300 Uses of electroactive polymer materials Mar. 12, 2013
8390175 Optical device and optical apparatus Mar. 5, 2013
8373330 Piezoelectric actuator employing switch Feb. 12, 2013
8369037 Actuator assembly and optical system having the same Feb. 5, 2013
8358279 Sensation system Jan. 22, 2013
8330324 Integrated PWM slope control driving mechanism for gradually delivering energy to a capacitive load Dec. 11, 2012
8314531 Piezoelectric actuator driver circuit Nov. 20, 2012
8310131 Megasonic processing apparatus with frequency sweeping of thickness mode transducers Nov. 13, 2012
8304960 Methods for reducing power consumption of at least partially resonant actuator systems and systems thereof Nov. 6, 2012
8305200 Reactive networks to reduce acoustic noise and ensure maximum efficiencies in driving piezoelectric elements in haptic applications Nov. 6, 2012
8299681 Remotely adjustable reactive and resistive electrical elements and method Oct. 30, 2012

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