| Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116) |
|---|
| 07/15/1980 | US4213107 Electro-mechanical filter |
| 07/15/1980 | US4213104 Vacuum encapsulation for surface acoustic wave (SAW) devices |
| 07/15/1980 | CA1081806A1 Signal bandpass filter apparatus |
| 07/08/1980 | US4212029 Elastic surface wave filter for color television receiver |
| 07/08/1980 | US4211947 Thickness-shear mode quartz oscillator with an added non-circular mass |
| 07/01/1980 | US4210883 Technique for widening the temperature range of surface acoustic wave reflection array filters |
| 06/25/1980 | EP0012689A2 Piezoelectric resonator to be positioned like a drawer |
| 06/24/1980 | US4209759 Magnetoelastic surface wave interaction device |
| 06/24/1980 | US4209725 Selenium layer piezoelectric device |
| 06/24/1980 | CA1080355A1 Double split-electrode for charge transfer device |
| 06/24/1980 | CA1080348A1 Surface wave device for use in a ghost cancellation system |
| 06/12/1980 | WO1980001226A1 Inductorless monolithic crystal filter network |
| 06/10/1980 | US4207546 Phase and amplitude programmable internal mixing SAW signal processor |
| 06/10/1980 | US4207545 Linear SAW signal processor |
| 06/03/1980 | US4206427 Electromechanical filters |
| 06/03/1980 | US4206426 Multiple pole surface wave acoustic filters employing angled grooved distributed reflector arrays |
| 06/03/1980 | US4206380 Piezoelectric surface acoustic wave device with suppression of reflected signals |
| 06/03/1980 | CA1078954A1 Quartz resonator with electrodes not adhering to the crystal |
| 06/03/1980 | CA1078934A1 Electromechanical filters |
| 06/03/1980 | CA1078933A1 Elastic surface wave oscillator |
| 05/27/1980 | US4205285 Acoustic surface wave device |
| 05/27/1980 | US4205284 Electrical frequency filter comprising piezoelectric crystals |
| 05/27/1980 | US4205280 Surface wave device with suppressed boundary-reflected waves |
| 05/27/1980 | US4205248 Quartz crystal vibrator electrode configuration |
| 05/20/1980 | US4204178 Acoustic wave devices |
| 05/20/1980 | CA1078031A1 Multipole resonator |
| 05/13/1980 | US4203128 Electrostatically deformable thin silicon membranes |
| 05/13/1980 | US4203082 Surface acoustic wave filter |
| 05/13/1980 | CA1077615A1 Integrally sintered ceramic complex and method of manufacturing the same |
| 05/06/1980 | US4201964 Elastic surface wave device |
| 04/30/1980 | EP0010227A1 Piezoelectric resonator |
| 04/29/1980 | US4200849 Tuned unidirectional surface wave transducer |
| 04/22/1980 | US4199637 Anisotropically pressure-sensitive electroconductive composite sheets and method for the preparation thereof |
| 04/16/1980 | EP0010046A1 Piezoelectric resonator |
| 04/16/1980 | EP0009900A1 A monolithic crystal filter having a passband symmetrical about a center frequency |
| 04/15/1980 | CA1075782A1 Surface acoustic wave device |
| 04/15/1980 | CA1075781A1 Acoustic surface wave device having split-isolated or split-connected multistrip coupler |
| 04/08/1980 | US4197516 Bridged electromechanical filters |
| 04/08/1980 | US4197483 Submillimeter wave generation using surface acoustic waves in piezoelectric materials |
| 04/01/1980 | US4196407 Piezoelectric ceramic filter |
| 03/18/1980 | US4194171 Zinc oxide on silicon device for parallel in, serial out, discrete fourier transform |
| 03/11/1980 | US4193051 Magnetostrictive mechanical filter |
| 03/11/1980 | US4193045 Temperature compensated surface acoustic wave oscillators |
| 03/11/1980 | US4193008 Tuning fork formed of rolled invariable elasticity material |
| 03/04/1980 | US4191934 High efficiency wide band surface acoustic wave coupler processors |
| 03/04/1980 | US4191933 Differential mixing surface acoustic wave signal processor |
| 03/04/1980 | US4191906 Tuning fork type quartz crystal resonator with notched tines |
| 03/04/1980 | US4191905 Sealed housings for a subminiature piezoelectric vibrator |
| 02/12/1980 | US4188596 Elastic surface wave device |
| 02/12/1980 | US4188557 Piezoelectric overtone resonator with at least a convex surface and specific thickness and diameter or diagonal |
| 02/12/1980 | CA1071751A1 Piezoelectric tuning device and method for making the same |
| 01/29/1980 | CA1070784A1 Elastic surface wave transmitting device for eliminating multiple transit echoes |
| 01/23/1980 | EP0007276A1 Demodulation device for frequency shift keyed signals |
| 01/22/1980 | US4185218 Piezoelectric acoustic surface wave filter coupler |
| 01/15/1980 | US4184132 Electromechanical filters |
| 01/15/1980 | US4184131 Electrical filter of cascaded surface acoustic wave resonators |
| 01/15/1980 | US4184095 Quartz crystal resonator with supplemental electrodes for controlling the Q factor |
| 01/15/1980 | US4183126 Process for preparing quartz oscillator |
| 01/08/1980 | CA1069610A1 Piezoelectric crystal |
| 12/13/1979 | WO1979001101A1 Quartz crystal resonator |
| 12/12/1979 | EP0006054A1 Acoustic surface wave filter and intermediate frequency stage for a television receiver comprising same |
| 12/12/1979 | EP0006047A1 Quartz plate for surface waves |
| 12/12/1979 | EP0005953A1 Surface acoustic wave devices |
| 12/11/1979 | US4178571 Acoustic surgave wave resonator devices |
| 12/11/1979 | US4178566 Quartz crystal tuning fork vibrator for a crystal oscillator |
| 12/11/1979 | US4178527 Quartz crystal tuning fork vibrator with unexcited tine centers for reduced flexural amplitudes |
| 12/11/1979 | US4178526 Piezoelectrically driven tuning fork resonator and mounting structure |
| 12/04/1979 | US4177438 Magnetostrictive |
| 12/04/1979 | CA1067621A1 Apparatus and method for composing information on a data bus |
| 11/27/1979 | US4176030 Method for forming a quartz crystal vibrator |
| 11/06/1979 | US4173726 Tuning fork-type piezoelectric vibrator |
| 10/30/1979 | US4172908 Quartz crystal vibrator |
| 10/30/1979 | CA1065420A1 Multiple electrode crystal frequency discriminator circuit |
| 09/11/1979 | US4167686 Miniaturized at-cut piezoelectric crystal resonator |
| 09/04/1979 | US4166987 Surface acoustic wave multistrip coupler |
| 09/04/1979 | US4166967 Piezoelectric resonator with acoustic reflectors |
| 08/28/1979 | US4166258 Thin-film integrated circuit with tank circuit characteristics and applications to thin-film filters and oscillators |
| 08/28/1979 | US4166257 Capacitively weighted surface acoustic wave device |
| 08/28/1979 | US4166228 Temperature compensated reflective array for surface acoustic wave processing |
| 08/21/1979 | US4165498 Variable delay device |
| 08/21/1979 | CA1060962A1 Surface wave filters with coupled resonators |
| 08/07/1979 | US4163960 Electromechanical filter structure |
| 08/07/1979 | US4163959 Monolithic crystal filter device |
| 08/07/1979 | US4163958 Hybrid transversal filter |
| 07/31/1979 | US4163201 Elastic surface wave device |
| 07/24/1979 | US4162466 Surface acoustic wave resonator |
| 07/24/1979 | US4162465 Surface acoustic wave device with reflection suppression |
| 07/24/1979 | US4162452 Channel selection for a television receiver having low-gain high frequency RF-IF section |
| 07/24/1979 | US4162451 MESFET-device surface-wave-device channel selector |
| 07/24/1979 | US4162415 Acoustic surface wave transducer and filter built around this transducer |
| 07/10/1979 | US4160963 Plural supply path acoustic surface wave device |
| 07/10/1979 | US4160957 Signal re-generation apparatus |
| 07/10/1979 | US4160928 Case assembly for piezoelectric resonator |
| 07/03/1979 | US4160219 Transducer electrodes for filters or delay lines utilizing surface wave principles |
| 07/03/1979 | US4160183 Oscillator having a quartz resonator cut to compensate for static and dynamic thermal transients |
| 07/03/1979 | CA1057828A1 Temperature compensated surface acoustic wave oscillator |
| 06/27/1979 | EP0002595A1 Transponders |
| 06/26/1979 | US4159435 Acoustic wave devices employing surface skimming bulk waves |
| 06/19/1979 | US4158823 Transducer electrodes for filter or delay lines utilizing surface waves |
| 06/05/1979 | US4157466 Crystal oven for maintaining crystals at a predetermined temperature |