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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:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
7554422 Filter module using piezoelectric resonators, duplexer, communication device, and method for fabricating filter module Jun. 30, 2009
7548135 Filter and duplexer Jun. 16, 2009
7535319 Band pass filter and duplexer having the same May. 19, 2009
7535324 Piezoelectric resonator structure and method for manufacturing a coupled resonator device May. 19, 2009
7532090 Acoustic wave filter device and duplexer May. 12, 2009
7522894 Radio receiving apparatus Apr. 21, 2009
7522016 Tunable surface acoustic wave resonators Apr. 21, 2009
7518470 Surface acoustic wave element, surface acoustic wave device and communication device including the same Apr. 14, 2009
7515017 Surface acoustic wave device utilizing a terminal routing pattern Apr. 7, 2009
7515018 Acoustic resonator Apr. 7, 2009
7511595 Multi-band filter module and method of fabricating the same Mar. 31, 2009
7498901 Filter device and transmitter-receiver utilizing beam-structured micro-resonators Mar. 3, 2009
7498900 System on chip structure comprising air cavity for isolating elements, duplexer, and duplexer fabrication method thereof Mar. 3, 2009
7498899 Duplexer with filters including film bulk acoustic resonators Mar. 3, 2009
7498898 Surface acoustic wave filter, and saw duplexer Mar. 3, 2009
7498902 Balanced/unbalanced filter module and communication apparatus Mar. 3, 2009
7489210 Surface acoustic wave filter and transmitter-receiver Feb. 10, 2009
7486158 Branching filter Feb. 3, 2009
7479845 Branching filter package Jan. 20, 2009
7479846 Duplexer Jan. 20, 2009
7479847 Filter using piezoelectric resonator Jan. 20, 2009
7479848 Acoustic wave filter device Jan. 20, 2009
7477115 Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezoelectric resonator Jan. 13, 2009
7474174 Ladder-type thin-film bulk acoustic wave filter Jan. 6, 2009
7466213 Resonator structure and method of producing it Dec. 16, 2008
7459992 Acoustic wave filter and acoustic wave duplexer Dec. 2, 2008
7459991 SAW component having an improved temperature coefficient Dec. 2, 2008
7459990 Arrangement with two piezoelectric layers, and method of operating a filter device Dec. 2, 2008
7456705 Surface acoustic wave device, duplexer, and communications equipment Nov. 25, 2008
7453333 Surface acoustic wave apparatus and communications equipment Nov. 18, 2008
7453335 Surface acoustic wave resonator, surface acoustic wave filter and surface acoustic wave duplexer, and communications equipment Nov. 18, 2008
7449978 Printed substrate, and electronic component having shield structure Nov. 11, 2008
7446629 Antenna duplexer, and RF module and communication apparatus using the same Nov. 4, 2008
7443270 Film bulk acoustic resonator, filter circuit and method for manufacturing a film bulk acoustic resonator Oct. 28, 2008
7436269 Acoustically coupled resonators and method of making the same Oct. 14, 2008
7436273 Surface acoustic wave device and method for manufacturing the same Oct. 14, 2008
7432783 Filter device substrate and filter device Oct. 7, 2008
7429904 Spread-spectrum radio utilizing MEMS components Sep. 30, 2008
7425879 Surface acoustic wave filter apparatus and branching filter Sep. 16, 2008
7425878 Surface acoustic wave filter and duplexer using the same Sep. 16, 2008
7420438 Front end module Sep. 2, 2008
7420440 Transmitting filter including SAW resonators Sep. 2, 2008
7414494 Surface acoustic wave apparatus Aug. 19, 2008
7414495 Coupled FBAR filter Aug. 19, 2008
7412210 High frequency module Aug. 12, 2008
7400216 Surface acoustic wave device Jul. 15, 2008
7400218 Surface acoustic wave filter Jul. 15, 2008
7400220 Surface acoustic wave device Jul. 15, 2008
7385464 Resonator type filter Jun. 10, 2008
7385463 Surface acoustic wave device and electronic circuit device Jun. 10, 2008

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