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Class Information
Number: 333/133
Name: Wave transmission lines and networks > Plural channel systems > Having branched circuits > For providing frequency separation > Utilizing electromechanical transducer
Description: Subject matter wherein an electrical wave driven mechanical vibrator determines the frequency characteristic of the branched circuit.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8305160 Elastic wave device and duplexer Nov. 6, 2012
8305159 Piezoelectric thin film resonator, filter using the resonator, duplexer using the filter, and communication equipment using the filter or the duplexer Nov. 6, 2012
8286327 Method for manufacturing radio frequency device Oct. 16, 2012
8283997 Elastic-wave filter device Oct. 9, 2012
8279021 Duplexer Oct. 2, 2012
8274342 Duplexer and electronic device Sep. 25, 2012
8269577 Acoustic wave filter, duplexer, communication module, and communication apparatus Sep. 18, 2012
8264299 Boundary acoustic wave device and communication equipment Sep. 11, 2012
8264298 Filtering device and a method for filtering a signal Sep. 11, 2012
8258891 Acoustic wave device, duplexer, communication module, communication apparatus, and manufacturing method for acoustic wave device Sep. 4, 2012
8258894 Coupled resonator filter with a filter section Sep. 4, 2012
8228137 Filter, demultiplexer, and module including demultiplexer, communication apparatus Jul. 24, 2012
8228138 Filter element, duplexer and electronic device having piezoelectric thin-film resonators stacked vertically Jul. 24, 2012
8222973 Elastic wave resonator, ladder filter and duplexer Jul. 17, 2012
8222972 Acoustic wave element, duplexer, communication module, and communication apparatus Jul. 17, 2012
8222971 Acoustic wave filter device Jul. 17, 2012
8222970 Resonant device, communication module, communication device, and method for manufacturing resonant device Jul. 17, 2012
8207799 Band reject filters Jun. 26, 2012
8193877 Duplexer with negative phase shifting circuit Jun. 5, 2012
8188812 Elastic wave device and ladder filter device May. 29, 2012
8183958 Elastic-wave ladder filter May. 22, 2012
8179207 Resonator device, filter including the same, and duplexer May. 15, 2012
8174339 Duplexer, substrate for duplexer, and electronic apparatus May. 8, 2012
8169278 Surface acoustic wave device and duplexer May. 1, 2012
8164398 Resonator, filter and electronic device Apr. 24, 2012
8138855 Device with an electroacoustic balun Mar. 20, 2012
8138854 Filter, branching filter and communication apparatus Mar. 20, 2012
8130058 Switchable tunable acoustic resonator using BST material Mar. 6, 2012
8125297 Filter, duplexer, and communication apparatus Feb. 28, 2012
8125298 Acoustic wave filter, duplexer using the acoustic wave filter, and communication apparatus using the duplexer Feb. 28, 2012
8093960 Filter duplexer and communication device Jan. 10, 2012
8093961 Duplexer formed on piezoelectric substrate Jan. 10, 2012
8093962 Filter, duplexer and communication apparatus Jan. 10, 2012
8085116 Elastic wave device with a dielectric layer on the comb-shaped electrodes Dec. 27, 2011
8085115 Piezoelectric thin film resonator, filter, and communication apparatus Dec. 27, 2011
8081049 Band-pass filter device, method of manufacturing same, television tuner, and television receiver Dec. 20, 2011
8072293 Surface acoustic wave filter, antenna duplexer and method for manufacturing them Dec. 6, 2011
8063717 Duplexer having resonator filters Nov. 22, 2011
8063718 Duplexer, communication module, and communication device Nov. 22, 2011
8049577 Elastic wave device, duplexer using the same, and communication apparatus using the duplexer Nov. 1, 2011
8040205 Duplexer having specified relationship of the minimum distances between signal pads and specific ground pads Oct. 18, 2011
8035460 Surface acoustic wave device, surface acoustic wave filter and antenna duplexer using the same, and electronic equipment using the same Oct. 11, 2011
8026776 Acoustic wave device, duplexer, communication module, and communication apparatus Sep. 27, 2011
8022787 Duplexer, module including a duplexer and communication apparatus Sep. 20, 2011
8018298 Acoustic wave device, filter and duplexer Sep. 13, 2011
8014731 Electric circuit module, circuit module arrangement and use of said circuit module and of said circuit module arrangement Sep. 6, 2011
8004371 Band reject filters Aug. 23, 2011
8004370 Surface acoustic wave element, surface acoustic wave apparatus, and communication apparatus Aug. 23, 2011
7999632 Branching filter and method for manufacturing the same Aug. 16, 2011
7989851 Multifunctional biosensor based on ZnO nanostructures Aug. 2, 2011

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