Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116) |
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03/27/1984 | US4439706 Quartz crystal vibrator |
03/26/1984 | EP0063586A4 Surface acoustic wave device with reflectors. |
03/20/1984 | US4438417 Filter circuit utilizing a surface acoustic wave filter |
03/20/1984 | US4437773 Quartz thermometer |
03/15/1984 | WO1984001064A1 Cylindrical piezoelectric vibrator |
03/13/1984 | US4437031 ZnO/Si SAW Device having separate comb transducer |
03/06/1984 | CA1163334A1 Magnetostatic wave device containing attenuation means and the way of making it |
03/01/1984 | WO1984000859A1 Acoustic charge transport device and method |
02/29/1984 | EP0028265B1 Acoustic surface wave device |
02/28/1984 | US4434383 Temperature stable surface acoustic wave device |
02/22/1984 | EP0101077A2 Electronic device using reflected acoustical waves |
02/22/1984 | EP0100997A2 Electronic device using reflected acoustical waves |
02/21/1984 | US4433316 Crystal filter and method for fabrication |
02/21/1984 | US4433264 Stannic oxide layer between zinc oxide and electrode |
02/15/1984 | EP0100739A2 Surface acoustic wave device and method of manufacturing said surface acoustic wave device |
02/15/1984 | EP0100503A2 High frequency narrow-band pass multi-mode filter |
02/14/1984 | US4431938 Grooved piezoelectric resonating element and a mounting therefore |
02/14/1984 | US4431937 Piezoelectric crystal assembly including protective mounting and covering means |
02/07/1984 | US4430596 Temperature insensitive piezoelectric crystal mounting arrangement |
02/07/1984 | CA1161943A1 Crystal oscillator device with one electrode at the mouth of a through-hole |
02/01/1984 | EP0099604A2 Piezo-electric resonator or filter |
01/31/1984 | US4429248 Mounting apparatus and method for piezoelectric tuning fork |
01/31/1984 | US4429246 Group-arranged type surface acoustic wave transducer |
01/31/1984 | US4428808 Sputtering layer of glass before deposition of gold |
01/31/1984 | CA1161505A1 Multiple pole surface wave acoustic filters employing angled grooved distributed reflector arrays |
01/24/1984 | US4427956 Acoustic wave bandpass electrical filters |
01/24/1984 | US4427954 Pulse compression filter designed as a dispersive delay line |
01/24/1984 | US4427913 Acoustic diffractometer |
01/24/1984 | US4427515 Forming a thin metal film on a piezoelectric substrate |
01/18/1984 | EP0098661A2 Acoustic surface wave device including a reflective multistrip coupler |
01/18/1984 | EP0098651A2 Temperature sensor |
01/18/1984 | EP0098599A2 Elastic surface wave device |
01/18/1984 | EP0098579A2 Surface acoustic wave device |
01/17/1984 | US4426595 Acoustic surface wave device with improved band-pass characteristics |
01/11/1984 | EP0098154A2 Surface acoustic wave device |
01/11/1984 | EP0098116A2 Surface acoustic device |
01/11/1984 | EP0097642A1 Acoustical wax on a surface wave device |
01/10/1984 | US4425554 Surface acoustic wave resonator device |
01/10/1984 | CA1160336A1 Method of fabricating acceleration resistant crystal resonators and acceleration resistant crystal resonators so formed |
12/27/1983 | US4423395 Surface acoustic wave filter |
12/27/1983 | US4423394 Multiple pole bandpass filter having monolithic crystal elements |
12/21/1983 | EP0096653A2 Extensional mode piezoelectric microresonator |
12/21/1983 | EP0096611A1 High-frequency piezoelectric resonator and process for its production |
12/21/1983 | EP0096448A1 Apparatus for determing angular displacements of an object |
12/20/1983 | US4422057 Surface wave filter with reduced substrate size |
12/20/1983 | US4422055 Strain relief technique for surface acoustic wave devices |
12/20/1983 | US4422000 Unidirectional surface acoustic wave device with meandering electrode |
12/20/1983 | US4421621 Tuning fork |
12/20/1983 | US4421381 Mechanical vibrating element |
12/20/1983 | CA1159119A1 Piezoelectric tuning fork |
12/13/1983 | US4420730 Surface acoustic wave filter |
12/13/1983 | US4420728 Acoustic wave devices |
12/08/1983 | WO1983004350A1 Variable frequency oscillator |
12/06/1983 | US4419600 Stress-compensated quartz resonators |
11/29/1983 | US4418299 Face-shear mode quartz crystal vibrators and method of manufacture |
11/23/1983 | EP0094683A2 Surface acoustic wave device |
11/22/1983 | US4417221 Surface acoustic wave device having improved multi-strip coupler |
11/15/1983 | US4415827 Microresonator of tuning fork configuration operating at its second overtone frequency |
11/15/1983 | US4415826 Support and connection device for a disc-shaped piezoelectric resonator |
11/02/1983 | EP0092549A1 Parametric electric machine |
10/26/1983 | EP0092515A1 Piezoelectric resonator element and process for producing it |
10/26/1983 | EP0092474A1 Demodulation filter for a binary frequency-modulated signal |
10/26/1983 | EP0092428A2 A method for producing a piezoelectric resonator |
10/26/1983 | EP0092427A2 Piezoelectric resonator chip and a method for adjusting its resonant frequency |
10/26/1983 | EP0092290A2 Acoustic surface wave device |
10/18/1983 | US4410864 Impedance transformation network for a SAW filter |
10/18/1983 | US4410827 Mode coupled notched tuning fork type quartz crystal resonator |
10/18/1983 | US4410824 Means for preventing cracks in the gap region of a surface acoustic wave device |
10/18/1983 | US4410823 Surface acoustic wave device employing reflectors |
10/18/1983 | US4410822 Acceleration-resistant crystal resonator |
10/18/1983 | US4409711 Method of fabricating acceleration resistant crystal resonators |
10/11/1983 | US4409571 Surface acoustic wave filters |
10/11/1983 | US4409570 Separated substrate acoustic wave device |
10/11/1983 | US4409567 Surface acoustic wave device |
10/04/1983 | US4408347 High-frequency channel selector having fixed bandpass filters in the RF section |
09/28/1983 | EP0089870A1 Transmission-type electroacoustical delay line |
09/28/1983 | EP0089617A2 Surface-acoustic wave electronic circuit element |
09/27/1983 | US4406966 Isolating and temperature compensating system for resonators |
09/27/1983 | US4406964 Acoustic surface wave transducer with improved inband frequency characteristics |
09/20/1983 | US4405909 Mechanical filter with box-type coupling structure |
09/20/1983 | US4405875 Hermetically sealed flat-type piezo-electric oscillator assembly |
09/20/1983 | US4405874 Surface acoustic wave (saw) devices having series-connected inter-digital transducers |
09/20/1983 | CA1154144A1 High frequency oscillator with automatic temperature control |
09/14/1983 | EP0088653A1 Electroacoustical delay line |
09/14/1983 | EP0088548A2 Piezoelectric resonators |
09/14/1983 | EP0088493A2 Surface acoustic wave (saw) devices |
09/14/1983 | EP0088400A2 Interdigital transducer with suppression of reflected interfering signals |
09/14/1983 | EP0088204A2 Surface acoustic wave transmission device |
09/06/1983 | US4403202 Surface acoustic wave device and method for producing the same |
09/06/1983 | US4403165 Transducer isolation in surface acoustic wave processor |
08/31/1983 | EP0087079A2 Ultrasonic delay line |
08/31/1983 | EP0087078A2 Ultrasonic delay line and its manufacturing method |
08/30/1983 | US4401956 Electronically variable time delay in piezoelectric media |
08/30/1983 | CA1153102A1 Improving the stability of resonant frequency of piezoelectric device |
08/30/1983 | CA1153077A1 Electric filter and method of manufacture |
08/24/1983 | EP0086739A1 Piezoelectric resonator with mounting possibilities |
08/23/1983 | US4400640 Temperature stable cuts of quartz |
08/23/1983 | CA1152586A1 Electronic component comprising at least one piezoelectric resonator and method of manufacture thereof |
08/10/1983 | EP0085599A2 Method for mass-manufacturing piezoelectric transducers, transducers made by this method and utilisation of this method |
08/09/1983 | US4398163 Elastic surface wave recursive filter |