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Class Information
Number: 310/320
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > Piezoelectric slab having different resonant frequencies at different areas
Description: Subject matter wherein a unit of piezoelectric material is disclosed as having a resonant region and at least one other region that has a deliberately different resonant frequency from the first resonant region, e.g., energy trapped, dot resonator, or monolithic filter devices.










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

Patent Number Title Of Patent Date Issued
8710715 Mesa-shaped piezoelectric resonator element Apr. 29, 2014
8677604 Method of manufacturing boundary acoustic wave device Mar. 25, 2014
8680931 Periodic signal generators having microelectromechanical resonators therein that support surface wave and bulk acoustic wave modes of operation with different temperature coefficients of frequ Mar. 25, 2014
8650728 Method of assembling a transducer for a surgical instrument Feb. 18, 2014
8653908 Film bulk acoustic resonator, filter, communication module and communication apparatus Feb. 18, 2014
8638022 Piezoelectric resonator having mesa type piezoelectric vibrating element Jan. 28, 2014
8624466 Component having stress-reduced mounting Jan. 7, 2014
8610333 Acoustic wave devices Dec. 17, 2013
8575820 Stacked bulk acoustic resonator Nov. 5, 2013
8569937 Piezoelectric resonator with capacitive sense and/or force rebalance electrodes to control an amplitude of vibration Oct. 29, 2013
8564174 Integrated acoustic bandgap devices for energy confinement and methods of fabricating same Oct. 22, 2013
8552821 Electromagnetic resonance coupler Oct. 8, 2013
8536761 Piezoelectric resonator having mesa type piezoelectric vibrating element Sep. 17, 2013
8531083 Devices having a tunable acoustic path length and methods for making same Sep. 10, 2013
8519598 Microelectromechanical resonators having piezoelectric layers therein that support actuation and sensing through a longitudinal piezoelectric effect Aug. 27, 2013
8487511 Protected resonator Jul. 16, 2013
8482357 Transverse acoustic wave resonator, oscillator having the resonator and method for making the resonator Jul. 9, 2013
8461969 Dual mode vibrator Jun. 11, 2013
8450906 Piezoelectric thin-film resonator May. 28, 2013
8436516 Resonator device including electrode with buried temperature compensating layer May. 7, 2013
8415858 Piezoelectric vibrating pieces and devices, and methods for manufacturing same Apr. 9, 2013
8410669 Piezoceramic transducer and method for manufacturing the same Apr. 2, 2013
8381386 Method of manufacturing a boundary acoustic wave device Feb. 26, 2013
8350445 Bulk acoustic resonator comprising non-piezoelectric layer and bridge Jan. 8, 2013
8344590 Acoustic wave device with frequency control film Jan. 1, 2013
8330325 Bulk acoustic resonator comprising non-piezoelectric layer Dec. 11, 2012
8305154 Parametrically driven quartz UHF oscillator Nov. 6, 2012
8294332 Pressure transducer Oct. 23, 2012
8242664 Elastic wave device and electronic component Aug. 14, 2012
8237329 Elastic wave device and electronic component Aug. 7, 2012
8222795 Protected resonator Jul. 17, 2012
8125283 Method of manufacturing crystal element and crystal resonator manufactured thereby Feb. 28, 2012
8110962 MEMS component and method for production Feb. 7, 2012
8102101 Piezoelectric sensors Jan. 24, 2012
8099853 Method for manufacturing boundary acoustic wave device Jan. 24, 2012
8089195 Integrated acoustic bandgap devices for energy confinement and methods of fabricating same Jan. 3, 2012
8084919 Piezoelectric thin-film resonator, filter using the same, and duplexer using the same Dec. 27, 2011
8074341 Boundary acoustic wave device manufacturing method Dec. 13, 2011
8072843 Stepped multiply resonant wideband transducer apparatus Dec. 6, 2011
8058768 Bulk acoustic wave resonator device Nov. 15, 2011
8049581 Piezoelectric filter and method for manufacturing the same Nov. 1, 2011
8035277 Method for forming a multi-layer electrode underlying a piezoelectric layer and related structure Oct. 11, 2011
8030823 Protected resonator Oct. 4, 2011
8007080 Actuator device, method of manufacturing the same and liquid-jet head Aug. 30, 2011
7986075 Film bulk acoustic wave resonator, its fabrication method and film bulk acoustic wave resonator filter using the resonator Jul. 26, 2011
7982363 Bulk acoustic device and method for fabricating Jul. 19, 2011
7977850 Bulk acoustic wave device with a semiconductor layer Jul. 12, 2011
7965019 Device comprising a piezoacoustic resonator element and integrated heating element, method for producing the same and method for outputting a signal depending on a resonant frequency Jun. 21, 2011
7952257 Piezoelectric thin-film resonator May. 31, 2011
7939990 Thin-film bulk acoustic resonators having perforated bodies that provide reduced susceptibility to process-induced lateral dimension variations May. 10, 2011

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