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)
08/1985
08/06/1985US4533885 Apparatus for suppression of spurious attenuation poles in crystal filters
07/1985
07/30/1985US4532451 Terminals and mounting for piezoelectric resonators
07/30/1985EP0079334A4 Band-pass filter and gain stage.
07/23/1985US4531107 Acoustic surface wave device
07/23/1985US4531073 Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity
07/17/1985EP0148361A1 Piezoceramic transformer device
07/16/1985CA1190606A1 Microwave heater for high frequency resonator
07/10/1985EP0147863A2 Surface acoustic wave transducer
07/09/1985CA1190313A1 Imbedable piezoelectric resonator
06/1985
06/26/1985EP0146077A2 Acoustic surface wave resonator device
06/25/1985US4525692 Electroacoustic delay lines
06/25/1985US4525647 Dual frequency, dual mode quartz resonator
06/25/1985US4525646 Partially stabilized with yttrium oxide and/or magnesium, calcium, cerium, or rare earth oxides
06/25/1985US4525643 Temperature compensated orientations of berlinite for surface acoustic wave devices
06/25/1985US4524497 Method of making a low-profile crystal package with an improved crystal-mounting arrangement
06/19/1985EP0144544A1 Temperature compensated orientation of berlinite for surface acoustic wave devices
06/18/1985CA1189156A1 Mechanically coupled electrical isolator including output stabilization
06/18/1985CA1189155A1 Mechanically coupled electrical isolator including multi-output stabilization
06/05/1985EP0143686A1 Production method of a piezoelectric resonator, and resonator produced by that method
06/05/1985EP0143680A1 Piezoelectric resonator for severe working conditions
06/04/1985US4521751 Electronic component functioning with reflected acoustic waves
06/04/1985US4521711 Unidirectional transducer for a surface-acoustic-wave device and a method of making same
05/1985
05/29/1985EP0142549A1 Surface wave device with over sampled withdrawal weighting
05/28/1985US4520330 Electronic component functioning with reflected acoustic waves
05/28/1985CA1187951A1 Elastic wave processing system invariant with the temperature
05/21/1985US4518944 Temperature stabilizer
05/15/1985EP0140967A1 Transversely weighted surface acoustic wave device
05/14/1985US4517486 Monolitic band-pass filter using piezoelectric cantilevers
05/14/1985US4517485 High-frequency piezoelectric resonator with reinforced electrode connection
05/08/1985EP0140618A2 Acoustic transducer
05/08/1985EP0140449A2 Surface acoustic wave device
05/08/1985EP0140002A2 Temperature-compensated orientation of berlinite for surface acoustic wave devices
05/07/1985US4516095 Surface acoustic wave device
05/07/1985US4516094 Acoustic surface wave device
05/07/1985US4516093 Surface acoustic wave filter
05/07/1985US4516090 Ultrasonic delay line
05/07/1985US4516049 Multi-layer acoustic surface wave device having minimal delay time temperature coefficient
04/1985
04/23/1985US4513262 Acoustic surface wave device
04/23/1985US4513261 Low-loss acoustic wave filter device
04/16/1985US4511867 Acoustic surface wave device including a reflective multistrip coupler
04/16/1985US4511866 Acoustic surface wave device
04/16/1985US4511821 Support structure for piezoelectric vibrator
04/16/1985US4511820 Biased holder for a crystal wafer
04/16/1985US4511817 Temperature compensated orientation of berlinite for surface acoustic wave devices
04/16/1985US4511816 Surface acoustic wave device using an elastic substrate and an aluminum nitride piezoelectric film
04/16/1985US4511202 Ceramic resonator and a ceramic filter using the same
04/10/1985EP0136943A2 Resonator with low sensibility for accelerations
04/10/1985EP0136942A2 Self-suspended resonator with a high quality factor
04/09/1985US4510471 Acoustic surface wave device including a reflective multistrip coupler
04/09/1985US4510470 Electro-acoustic delay line operating in transmission
04/09/1985US4510410 Unsaturated polymers and photoinitiators; automatic mass production
04/03/1985EP0135957A2 Acoustic surface wave device
04/03/1985EP0135769A2 Surface-wave convolver
03/1985
03/27/1985EP0135466A2 Low reflectivity electrodes in semiconductive saw devices
03/27/1985EP0135465A2 Low reflectivity surface-mounted electrodes on semiconductive saw devices
03/26/1985US4507581 Electrode structure for saw device
03/19/1985US4506239 Compound surface acoustic wave matched filters
03/19/1985CA1184261A1 Acoustic wave bandpass electrical filters
03/12/1985US4504759 SAW Device with special length-weighted interdigital electrode array
03/12/1985CA1183938A1 Surface acoustic wave device
03/12/1985CA1183913A1 Capacitive commutating filter
03/05/1985US4503353 Cut angles for tuning fork type quartz resonators
03/05/1985US4503352 Grooved piezoelectric ceramic resonator with two poling directions
03/05/1985US4503350 Piezoelectric resonator device with a laminated structure
03/05/1985US4502932 Acoustic resonator and method of making same
02/1985
02/26/1985US4501987 Surface acoustic wave transducer using a split-finger electrode on a multi-layered substrate
02/19/1985US4500807 Surface acoustic wave transmission device for a low frequency signal below 30 MHz
02/12/1985US4499440 Low reflectivity electrodes in semiconductive SAW devices
02/12/1985US4499439 Bifurcated electroacoustic delay lines
02/12/1985US4499395 Cut angles for quartz crystal resonators
02/12/1985US4499393 Surface acoustic wave spectrum analyzer
02/05/1985US4498025 Tuning fork
01/1985
01/29/1985US4496871 Parallel type piezoelectric bimorph vibrator
01/29/1985CA1181823A1 Impedance transformation network for a saw filter
01/29/1985CA1181804A1 Parametric electric machine
01/22/1985US4495431 Gold-germanium electrodes
01/15/1985US4494091 Damping package for surface acoustic wave devices
01/15/1985US4494033 Thin lead suspension for a piezoelectric resonator
01/15/1985US4494031 High power acoustic wave arrangement with N2 parallel-series connected acoustic wave devices
01/09/1985EP0130410A2 Printed circuit board structure for metal package containing high-frequency component
01/08/1985US4492940 Acoustic surface-wave bandpass filter
01/08/1985US4492928 Comb filter
01/08/1985US4492892 Piezoelectric resonator device supported by anisotropic rubber conductor
01/02/1985CA1180436A Surface acoustic wave resonator device
01/01/1985US4491931 Elastic wave processing system invariant with the temperature
01/01/1985US4491811 Surface acoustic wave device
01/01/1985US4491758 Surface wave device with oversampled withdrawal weighting
01/01/1985US4491757 Transversely weighted surface acoustic wave device
12/1984
12/25/1984US4490698 Surface acoustic wave bandpass filter
12/25/1984US4490641 Three electrode piezoelectric ceramic resonator
12/18/1984US4489250 Temperature compensated surface acoustic wave device
12/11/1984US4488128 Bifurcated electroacoustic delay line with diagonal coupling
12/11/1984US4488127 Bifurcated electro-acoustic delay lines having transducers bonded at an area of bifurcation
12/05/1984EP0127442A2 Piezoelectric resonator
12/04/1984US4486724 Acoustic surface wave device
12/04/1984US4486682 Stress compensated quartz resonator having ultra-linear frequency-temperature response
12/04/1984US4486681 Quartz unit
11/1984
11/28/1984EP0126672A1 Resonator with integrated infrared thermostat
11/27/1984US4485364 Reflection-compensated surface acoustic wave transducer
11/27/1984US4485363 Signal processor using surface acoustic waves
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