Patents
Sitemap › H03 - Basic electronic circuitry › H03H - Impedance networks, e.g. resonant circuits; Resonators › H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116)
11/1982
11/02/1982CA1134938A1 Remote acoustic wave sensors
10/1982
10/26/1982US4356425 Electrode for tuning fork type quartz crystal vibrator
10/26/1982US4356421 Piezoelectric resonators of an energy-trapping type of a width extensional vibratory mode
10/20/1982EP0063069A1 Temperature-independent acoustical wave treating system
10/19/1982US4355290 Acoustic surface wave filter
10/19/1982US4355257 Thickness shear type piezoelectric vibrator with integral mounting
10/14/1982WO1982003511A1 Surface acoustic wave filter
10/13/1982EP0062604A1 Piezo-electric oscillator and its manufacturing process
10/12/1982US4354166 Carrier concentration controlled surface acoustic wave resonator and oscillator
10/12/1982US4354133 Hermetically sealed container
10/12/1982US4354130 Operable at ultra-high frequency
10/12/1982US4354129 Absorber for piezoelectric surface acoustic wave device
10/06/1982EP0061648A2 Electrical device the active part of which is placed on a metal support, and process for the manufacture of the device
10/05/1982US4353046 Surface acoustic wave device with reflectors
10/05/1982US4353045 Ladder type filter
10/05/1982US4353043 Surface acoustic wave devices and systems including such devices
09/1982
09/29/1982EP0060967A1 Surface acoustic wave semiconductor device
09/28/1982CA1132719A1 Vacuum encapsulation for surface acoustic wave (saw) devices
09/21/1982US4350963 Surface acoustic wave device
09/21/1982US4350961 Electronic timepiece
09/21/1982US4350918 Contour vibration mode piezoelectric resonator
09/21/1982CA1132211A1 Acoustic wave devices
09/14/1982US4349794 Shallow bulk acoustic wave devices
09/14/1982US4349763 Tuning fork type quartz resonator
09/08/1982EP0059447A2 Piezoelectric oscillator device
09/07/1982US4348650 Surface-acoustic-wave parametric device
09/07/1982US4348609 Piezoelectric vibrator with spurious mode suppression
09/07/1982CA1131373A1 Surface-acoustic-wave filter for channel selection system of television receiver
09/07/1982CA1131321A1 Fast warm-up oven controlled oscillator
08/1982
08/31/1982US4346537 Capacitor trimming system in a quartz-crystal oscillator
08/31/1982US4346505 Method of fabricating piezoelectric transducer with polymer element
08/24/1982US4346322 Elastic surface wave device
08/17/1982US4345176 Temperature compensated gallium arsenide surface acoustic wave devices
08/11/1982EP0057598A2 Acoustic surface wave device
08/11/1982EP0057555A2 Surface acoustic wave device
08/11/1982EP0057332A2 Symmetric beam width compression multistrip coupler
08/10/1982US4344051 Elastic surface wave transducer and filter incorporating such a transducer
08/10/1982US4344049 Surface wave component
08/10/1982US4344010 Acceleration resistant combination of opposite-handed piezoelectric crystals
08/10/1982US4343827 Method of fine-tuning a monolithic crystal filter
08/10/1982CA1129511A1 Elastic surface wave device
08/03/1982US4342971 Continuously variable surface acoustic wave delay line
08/03/1982US4342970 Acoustic wave device
07/1982
07/28/1982EP0056783A1 Piezoelectric micro-resonator
07/28/1982EP0056690A2 Surface acoustic wave resonator device
07/27/1982US4342015 Electromechanical band pass filters
07/27/1982US4342014 Multi-resonator crystal filter having a reduced number of pins and method of fabrication thereof
07/27/1982US4342012 Surface acoustic wave device
07/27/1982US4342011 Surface acoustic wave device
07/20/1982US4340872 Continuously variable piezoelectric crystal delay line
07/20/1982US4340835 Piezoelectrically driven tuning fork with integral damper member
07/20/1982US4340834 Surface acoustic wave resonator device
07/20/1982CA1128214A1 Capacitor trimming system in a quartz-crystal oscillator
07/08/1982WO1982002310A1 Image filter
07/06/1982US4338575 Process for compensating temperature variations in surface wave devices and pressure transducer utilizing this process
06/1982
06/30/1982EP0054988A1 Acoustic wave devices
06/30/1982EP0054723A1 Surface acoustic wave resonator
06/29/1982CA1126829A1 Acoustic wave devices
06/23/1982EP0054447A1 Stress-compensated quartz resonators
06/22/1982US4336515 Acoustic filter with harmonic rejection
06/22/1982US4336514 Acoustic wave devices
06/22/1982US4336510 Oscillator with a feedback circuit employing a pre-polarized ceramic piezoelectric oscillating unit
06/15/1982US4334343 Method of making crystal mounting and connection arrangement
06/09/1982EP0053533A1 Manufacturing method to reduce the ageing of piezo-electric resonators
06/08/1982US4334168 High frequency, thermostatically self controlled oscillator
06/08/1982US4334167 Elastic surface wave device
06/08/1982US4333842 Piezoelectric single crystal and surface acoustic wave element employing the same
06/08/1982CA1125397A1 Monolithic crystal filter having a passband symmetrical about a center frequency
06/01/1982US4333065 Low reflectivity apodized surface acoustic transducer with means to prevent wavefront distortion
06/01/1982CA1124829A1 Piezo-electric resonator having a self-suspended crystal
05/1982
05/27/1982WO1982001790A1 Improvements in or relating to methods of producing devices comprising metallised regions on dielectric substrates
05/25/1982US4331943 Acoustic wave devices having transverse mode distortions eliminated structurally
05/19/1982EP0051942A2 Surface acoustic wave filter
05/18/1982US4330768 Dispersion compensated acoustic surface waveguides using diffused substrates
05/18/1982US4330767 Surface acoustic wave device
05/13/1982WO1982001629A1 Surface acoustic wave device with reflectors
05/11/1982US4329666 Two-pole monolithic crystal filter
05/11/1982US4329613 Resonator component module
05/11/1982CA1123505A1 Piezoelectric tuning fork
05/04/1982US4328473 Isolated gate, programmable internal mixing saw signal processor
05/04/1982US4328472 Acoustic guided wave devices
05/04/1982US4328442 Piezoelectrically driven tuning fork with damping means
04/1982
04/28/1982EP0050307A2 Resonator force transducer
04/27/1982US4327341 Electromechanical filter cells
04/27/1982US4327340 Surface wave resonator cascade
04/27/1982CA1122429A1 Surface acoustic wave (saw) pressure sensor structure
04/20/1982US4326142 Piezoelectric resonators
04/13/1982US4325038 SAW Resonator filters with improved temperature stability
04/13/1982US4325037 Acoustic wave filter
04/06/1982US4323866 Filter circuit
04/06/1982US4323865 Ladder-type piezoelectric filter
04/06/1982US4323809 Surface acoustic wave substrate having orthogonal temperature compensated propagation directions and device applications
03/1982
03/31/1982EP0048689A1 Quartz thermometer
03/30/1982US4322652 Piezoelectric resonator support with direction-oriented conductive plastic plate
03/30/1982US4322651 Acoustic surface wave device
03/23/1982US4321567 Combining series sections weighting with withdrawal weighting in SAW transducers
03/23/1982US4321565 Relative phase sensor employing surface acoustic waves
03/16/1982US4320366 Carrier frequency communication transmission system having premodulation
03/16/1982US4320365 Fundamental, longitudinal, thickness mode bulk wave resonator
03/16/1982US4320320 Coupled mode tuning fork type quartz crystal vibrator
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