| Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116) |
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| 03/31/1993 | EP0534251A1 Surface acoustic wave device |
| 03/31/1993 | EP0534165A1 Surface acoustic wave device |
| 03/30/1993 | US5198716 Micro-machined resonator |
| 03/25/1993 | DE4130776A1 Reflective piezoelectric delay line for surface acoustic waves - features single acoustic track leading in one or both directions from interdigital transducer to retroreflecting structures |
| 03/24/1993 | EP0533431A1 Surface acoustic wave (SAW) ladder transducer |
| 03/23/1993 | US5196758 High frequency piezoelectric resonator |
| 03/23/1993 | US5196720 Narrow band interference signal removing device |
| 03/18/1993 | WO1993005583A1 An integrated circuit including a surface acoustic wave transformer and a balanced mixer |
| 03/18/1993 | DE4228324A1 Tuning fork-shaped piezoelectric resonator - has slit piezoelectric substrate with steps in outer edges of tuning fork tines |
| 03/17/1993 | EP0531985A1 Electro-acoustic hybrid integrated circuit and manufacturing method thereof |
| 03/16/1993 | US5194836 Thin film, microwave frequency manifolded filter bank |
| 03/16/1993 | US5194830 Surface wave resonator system having additional transducer between reflectors |
| 03/16/1993 | US5194768 Apparatus for filtering noise from a periodic signal |
| 03/10/1993 | EP0530547A1 Acoustic wave device |
| 03/10/1993 | EP0436566B1 Converter with omission weighting for surface wave filters |
| 03/10/1993 | EP0436565B1 Surface wave interdigital transducer and surface wave filter with symmetrical or predetermined asymmetrical transfer characteristic between input and output |
| 03/10/1993 | EP0436556B1 Surface wave filter |
| 03/09/1993 | US5192925 Piezoelectric resonator and method of fabricating the same |
| 03/03/1993 | EP0530041A2 Surface acoustic wave unidirectional transducer having floating electrodes |
| 03/02/1993 | US5191400 Linear acoustic charge transport circuit |
| 03/02/1993 | US5191308 Magnetostrictive wave device having a higher maximum cut-off band elimination filter |
| 02/25/1993 | DE4227340A1 Surface acoustic wave component with interdigital electrode arrangement - has some fingers partly cut away and brought closer to one another in direction of propagation |
| 02/23/1993 | US5189330 Surface acoustic wave device |
| 02/23/1993 | US5188983 Polysilicon resonating beam transducers and method of producing the same |
| 02/18/1993 | DE4126335A1 Surface acoustic wave resonator with interdigital converter - has continuously changing geometry period in reflectors and/or converter |
| 02/18/1993 | DE4126334A1 Surface acoustic wave resonator mfr. for precise resonator frequency - involves forming identical reflector structures, and short-circuiting selected structures to control centre frequency |
| 02/17/1993 | EP0527468A1 High frequency module |
| 02/16/1993 | US5187756 Surface acoustic waveguide device and manufacturing method |
| 02/16/1993 | US5187718 Demodulator for spread spectrum communication |
| 02/16/1993 | US5187681 Controlling apparatus for improving start up time for a convolver |
| 02/16/1993 | US5187458 Composite longitudinal vibration mechanical filter having central frequency deviation elimination means and method of manufacturing same |
| 02/16/1993 | US5187403 Acoustic image signal receiver providing for selectively activatable amounts of electrical signal delay |
| 02/09/1993 | US5185589 Microwave film bulk acoustic resonator and manifolded filter bank |
| 02/09/1993 | US5185550 Structure for supporting a resonator using an ultrathin piezoelectric plate in a package |
| 02/09/1993 | US5185548 Surface acoustic wave device with reflected wave at side edges on waveguide suppressed and communication system using the same |
| 02/03/1993 | EP0525784A1 Surface acoustic wave element and communication system using the same |
| 02/02/1993 | US5184043 Piezoelectric resonator |
| 02/02/1993 | US5184042 Surface wave device |
| 01/19/1993 | US5180942 Thermally isolated ovenized crystal oscillator |
| 01/13/1993 | EP0522676A1 Longitudinal quartz crystal resonator |
| 01/12/1993 | US5179310 Surface-acoustic-waver filter having a plurality of electrodes |
| 01/12/1993 | US5179309 Surface acoustic wave chirp filter |
| 12/30/1992 | EP0520270A1 Means for assembling a longitudinal body |
| 12/30/1992 | EP0520002A1 Surface wave transformer, especially of the split finger type, with the suppression of reflections of terminal transformer fingers |
| 12/29/1992 | US5175711 Surface acoustic wave apparatus and method of productivity and adjustment of the same |
| 12/29/1992 | US5175519 Surface elastic wave filter having finger omitted transducers to eliminate side lobes |
| 12/22/1992 | US5173915 Semiconductor laser device |
| 12/22/1992 | US5173667 Acoustic wave transmission media delay line having internally disposed absorber channels |
| 12/09/1992 | EP0517666A1 Quartz resonator resonating in a fundamental torsional mode |
| 12/09/1992 | EP0517239A1 Surface acoustic wave device and method for producing the same |
| 12/08/1992 | US5170500 Intermediate frequency circuit for cellular telephone transceiver using surface acoustic wave filter |
| 12/02/1992 | EP0516400A1 Torsional quartz crystal resonator |
| 12/01/1992 | US5168254 Magnetostatic wave device with minimized higher order mode excitations |
| 12/01/1992 | US5168253 High frequency ladder type piezo-electric filter with differently poled series and parallel resonators |
| 12/01/1992 | US5168191 Method of reducing component of the gamma vector |
| 11/26/1992 | DE4115702A1 Reflective delay line using surface wave technique - has surface wave reflectors at different spacings from input-output transducers with associated impedances |
| 11/24/1992 | US5166646 Integrated tunable resonators for use in oscillators and filters |
| 11/24/1992 | US5166570 Electronic component |
| 11/19/1992 | EP0513007A1 Inductively coupled saw device and method for making the same. |
| 11/19/1992 | DE4115700A1 Reflective delay line as surface wave structure - has spacing of electrode finger(s) in surface wave reflectors differently selected w.r.t. other electrode fingers |
| 11/17/1992 | US5164627 Phased array acoustic signal processor |
| 11/17/1992 | US5163435 Piezoceramic lamina acoustic delay line suitable for use in an ultrasonic diagnostic system |
| 11/12/1992 | WO1992020150A1 Twin-gate resonator with reduced side lobes |
| 11/12/1992 | DE4115080A1 Surface acoustic wave structure with reduced dependence on frequency precision - has selected ratio value related to specified preset parameters of substrate and components |
| 11/10/1992 | US5162822 Saw filter chip mounted on a substrate with shielded conductors on opposite surfaces |
| 11/10/1992 | US5162759 Piezoelectric filter stage selectably connectable in series with another piezoelectric filter stage |
| 11/10/1992 | US5162691 Cantilevered air-gap type thin film piezoelectric resonator |
| 11/10/1992 | US5162690 Piezoelectric substrate, epitaxial oriented aluminum film |
| 11/10/1992 | US5162689 Single-phase uni-directional acoustic wave transducer |
| 11/10/1992 | CA1310079C Saw device tapped delay line and apparatus using same |
| 11/05/1992 | DE4114202A1 Zweitor-resonator mit verringerten nebenmaxima Two-port resonator with reduced next maxima |
| 11/04/1992 | EP0511555A1 High-power surface acoustic wave filter |
| 11/03/1992 | US5160869 Diamond, zinc oxide |
| 10/29/1992 | WO1992019043A1 Surface mountable piezoelectric device with in situ finish plate mask |
| 10/29/1992 | WO1992019042A1 Process for producing reflectors for differently codable reflective delay lines in surface wave technology |
| 10/27/1992 | US5159302 Ladder type band-pass filter comprising of assembled plural vibrator blocks |
| 10/27/1992 | US5159301 Piezoelectric resonator device of the tuning fork type |
| 10/27/1992 | US5159299 HACT electrode configuration |
| 10/21/1992 | EP0509495A2 Intermediate frequency filter |
| 10/15/1992 | WO1992017937A1 Surface-wave device with a feature designed to avoid acoustic-wave interference |
| 10/15/1992 | DE4111866A1 Verfahren zur herstellung von reflektoren fuer unterschiedlich codierbare reflektive verzoegerungsleitungen in oberflaechenwellentechnik Process for the manufacture of reflectors for different encodable reflective verzoegerungsleitungen in oberflaechenwellentechnik |
| 10/14/1992 | EP0508734A1 A ceramic filter |
| 10/14/1992 | EP0508325A1 Surface acoustic wave reflective delay line |
| 10/13/1992 | US5155406 Acoustic charge transport device |
| 10/13/1992 | CA2065207A1 Ceramic band-stop filter |
| 10/06/1992 | US5153859 Laminated piezoelectric structure and process of forming the same |
| 10/06/1992 | US5153478 Resonator having a bar designed to vibrate in one extension mode |
| 10/06/1992 | US5153476 Acoustic vibrator with variable sensitivity to external acceleration |
| 10/06/1992 | US5152864 Method of manufacturing surface acoustic wave device |
| 09/30/1992 | EP0506249A1 Surface acoustic wave device for band-pass filter having small insertion loss and predetermined pass-band characteristics for broad band |
| 09/29/1992 | US5151672 Trap circuit comprising plural piezoelectric resonators interconnected by plural resistors and an inductor |
| 09/22/1992 | US5150085 Electronically tunable front end filter for radio apparatus |
| 09/16/1992 | EP0503892A1 High-frequency apparatus using quartz crystal resonator and its production method |
| 09/15/1992 | US5148413 Narrow band disturbing wave detecting device |
| 09/04/1992 | EP0513007A4 Inductively coupled saw device and method for making the same. |
| 09/01/1992 | US5144262 Acoustic charge transport selectable delay line and delay line oscillator formed therewith |
| 09/01/1992 | US5144185 SAW device |
| 09/01/1992 | US5144184 Micromechanical device with a trimmable resonant frequency structure and method of trimming same |
| 09/01/1992 | CA1307043C Suspension spring for piezoelectric vibrating reed |
| 08/25/1992 | US5142254 Ultrasonic delay line device with an adjusting circuit for adjusting delay time, a comb-shaped filter using the ultrasonic delay line device and a method of adjusting delay time |