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Class Information
Number: 310/321
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > Combined with resonant structure
Description: Subject matter wherein the piezoelectric element is combined with structure whose natural frequency of vibration is disclosed as being the same as the operating frequency of vibration of the piezoelectric element.










Sub-classes under this class:

Class Number Class Name Patents
310/322 Acoustic wave type generator or receiver 408
310/324 Diaphragm 683
310/323.01 Direct mechanical coupling 275
310/325 Sandwich or langevin type 194


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

Patent Number Title Of Patent Date Issued
8664835 Acoustic wave device Mar. 4, 2014
8664833 Power supplier using flexible PCB based on self-powering and sensor node using the same Mar. 4, 2014
8653721 Apparatus for providing haptic feedback Feb. 18, 2014
8636032 Acoustical fluid control mechanism Jan. 28, 2014
8638023 Ultrasonic oscillating device with a detachable ultrasonic oscillating assembly Jan. 28, 2014
8610333 Acoustic wave devices Dec. 17, 2013
8610549 Systems and methods for providing haptic feedback at multiple resonance frequencies Dec. 17, 2013
8606376 Method of actuating a system, apparatus for modifying a control signal for actuation of a system and method of tuning such an apparatus Dec. 10, 2013
8569927 Piezoelectric actuator unit and liquid transporting apparatus Oct. 29, 2013
8569928 Method for influencing, damping, or suppressing mechanical vibrations occurring during operation in a turbomachine blade, a turbomachine blade useful for carrying out the method, and a piezoel Oct. 29, 2013
8567041 Method of fabricating a heated quartz crystal resonator Oct. 29, 2013
8562546 System and method for evaluating tissue Oct. 22, 2013
8558498 Drive device Oct. 15, 2013
8536761 Piezoelectric resonator having mesa type piezoelectric vibrating element Sep. 17, 2013
8519599 Piezoelectric actuator unit and liquid transporting apparatus Aug. 27, 2013
8505190 Method of manufacturing inertial sensor Aug. 13, 2013
8496842 MEMS device fabricated with integrated circuit Jul. 30, 2013
8492957 Apparatus for generating electric energy Jul. 23, 2013
8482357 Transverse acoustic wave resonator, oscillator having the resonator and method for making the resonator Jul. 9, 2013
8456252 Dual in-situ mixing for extended tuning range of resonators Jun. 4, 2013
8432084 Converting mechanical vibrational energy into electrical energy Apr. 30, 2013
8415858 Piezoelectric vibrating pieces and devices, and methods for manufacturing same Apr. 9, 2013
8390387 MEMS resonators Mar. 5, 2013
8356399 Method for protecting a resonating sensor Jan. 22, 2013
8350633 Microelectromechanical resonators with passive frequency tuning using variable impedance circuits Jan. 8, 2013
8344590 Acoustic wave device with frequency control film Jan. 1, 2013
8335131 Acoustic transducer array element having a plurality of acoustically coupled transducer assemblies Dec. 18, 2012
8330325 Bulk acoustic resonator comprising non-piezoelectric layer Dec. 11, 2012
8324784 Method for tuning a resonant frequency of a piezoelectric component Dec. 4, 2012
8305154 Parametrically driven quartz UHF oscillator Nov. 6, 2012
8258675 Detection sensor and resonator of detection sensor Sep. 4, 2012
8237329 Elastic wave device and electronic component Aug. 7, 2012
8222796 Micro-electro-mechanical device with a piezoelectric actuator Jul. 17, 2012
8169124 Physical/biochemical sensor using piezoelectric microcantilever and manufacturing method thereof May. 1, 2012
8164637 Driving apparatus and image pickup apparatus Apr. 24, 2012
8125123 Piezoelectric thin film resonant element and circuit component using the same Feb. 28, 2012
8110962 MEMS component and method for production Feb. 7, 2012
8102101 Piezoelectric sensors Jan. 24, 2012
8087297 Vibrating debris remover Jan. 3, 2012
8080918 Apparatus and method for controlling the machining of workpieces using piezoceramic transducers Dec. 20, 2011
8072119 Piezoelectric component Dec. 6, 2011
8063536 Optical apparatus Nov. 22, 2011
8063535 Nanomechanical oscillator Nov. 22, 2011
8058940 Dual in-situ mixing for extended tuning range of resonators Nov. 15, 2011
8022595 Asymmetric composite acoustic wave sensor Sep. 20, 2011
8022602 Piezoelectric resonant power generator Sep. 20, 2011
7986074 Inertial drive actuator Jul. 26, 2011
7965016 Method and device for converting mechanical energy into electrical energy Jun. 21, 2011
7965017 Thin film piezoelectric resonator and method for manufacturing the same Jun. 21, 2011
7956517 MEMS structure having a stress inverter temperature-compensated resonator member Jun. 7, 2011

1 2 3 4 5 6 7 8 9 10










 
 
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