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