| Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116) |
|---|
| 05/02/1978 | US4087714 Three phase unidirectional transducer |
| 04/04/1978 | US4083021 Transducer for surface wave filters with reduced diffraction |
| 03/28/1978 | US4081769 Acoustic surface wave resonator with suppressed direct coupled response |
| 03/28/1978 | US4080696 Method of making piezoelectric vibrator |
| 03/14/1978 | US4079342 Fanned multistrip coupler filters |
| 03/14/1978 | US4079281 Shape, AT-cut crystal oscillator |
| 03/14/1978 | US4078635 Crystal mount shock absorber |
| 03/07/1978 | US4078186 Magnetically tuned, surface acoustic wave device |
| 02/28/1978 | US4076987 Multiple resonator or filter vibrating in a coupled mode |
| 02/21/1978 | US4075582 Surface acoustic wave device |
| 02/21/1978 | US4075516 Diffraction electroacoustic transducer |
| 02/14/1978 | US4074213 Elastic bulk wave frequency filter |
| 02/07/1978 | US4072915 Acoustic surface wave devices |
| 01/31/1978 | US4071797 Quartz piezo-electric element vibrating in a coupled mode |
| 01/31/1978 | US4071786 Thickness-shear crystal vibrator |
| 01/24/1978 | US4070638 Nonlinear surface acoustic wave PSK encoder/correlator |
| 01/17/1978 | US4069507 Device for the two-dimensional reading of optical images, using elastic surface waves |
| 01/17/1978 | US4069434 Quartz crystal oscillator |
| 01/10/1978 | US4068141 Transducer for surface wave filters with an asymmetrical transfer function |
| 01/03/1978 | US4066986 Trapped energy piezoelectric filter |
| 01/03/1978 | US4066985 Television IF filter constructed in accordance with the surface wave principle |
| 12/27/1977 | US4065789 Surface wave device for use in a ghost cancellation system |
| 12/27/1977 | US4065736 Amplitude and phase programmable acoustic surface wave matched filter |
| 12/27/1977 | US4065735 Electrical filters including coupled resonators |
| 12/27/1977 | US4065734 Elastic surface wave devices |
| 12/27/1977 | US4065684 Piezoelectric resonator for timepieces and method for making same |
| 12/27/1977 | US4065304 Method for fixing ink images |
| 12/13/1977 | US4063202 Band-pass filter with surface acoustic wave devices |
| 12/13/1977 | US4063198 Acoustic ridge interactive structure |
| 12/06/1977 | US4061816 Integrally sintered ceramic complex and method of manufacturing the same |
| 11/29/1977 | US4060833 Transducer arrangement for a surface acoustic wave device to inhibit the generation of multiple reflection signals |
| 11/29/1977 | US4060777 Guided elastic surface wave filter |
| 11/29/1977 | US4060776 Intermediate-band crystal filter with low-transient response |
| 11/29/1977 | US4060775 Electromechanical band-pass filters |
| 11/29/1977 | US4060774 Electromechanical band-pass filter for high frequencies |
| 11/15/1977 | US4058744 Thermally stabilized crystal mounting assembly |
| 11/15/1977 | US4058002 Dispersive electromagnetic surface acoustic wave transducer |
| 11/01/1977 | US4056793 Acoustic waveguide resonator |
| 10/25/1977 | US4055820 Reflective dot array for acoustic wave processing |
| 10/25/1977 | US4055819 Acoustic ridge delay line |
| 10/18/1977 | US4054851 Acoustic surface-wave filter |
| 10/18/1977 | US4054841 Differential demodulators using surface elastic wave devices |
| 10/18/1977 | US4054807 Quartz oscillator mountings |
| 10/04/1977 | USRE29429 Oscillator for a timepiece |
| 09/27/1977 | US4051448 Surface acoustic wave transmission device and method of manufacturing same |
| 09/27/1977 | US4051358 Apparatus and method for composing digital information on a data bus |
| 09/27/1977 | US4050126 Method for adjusting frequency-temperature characteristic of GT cut quartz oscillator |
| 09/20/1977 | US4049982 Elliptical, interdigital transducer |
| 09/13/1977 | US4048595 Information extraction for doppler radar |
| 09/13/1977 | US4048594 Surface acoustic wave filter |
| 09/06/1977 | US4047130 Surface acoustic wave filter |
| 08/30/1977 | US4045753 Ceramic filter |
| 08/23/1977 | US4044321 Surface acoustic wave band pass filtering |
| 08/09/1977 | US4041419 Surface elastic wave analogue correlator |
| 08/09/1977 | US4041335 Piezoelectric ceramic resonator with vibration damping means |
| 08/02/1977 | US4039969 Quartz thermometer |
| 07/26/1977 | US4038615 Elastic surface wave device |
| 07/26/1977 | US4038614 Fractional efficiency coupler |
| 07/19/1977 | US4037181 Acoustic surface wave filter devices |
| 07/19/1977 | US4037180 Electro-mechanical filter |
| 07/19/1977 | US4037179 Mechanical filter device |
| 07/19/1977 | US4037178 Means for attaching a ferrite transducer to a disk resonator |
| 07/19/1977 | US4037176 Zinc oxide piezoelectric layer, silicon oxide |
| 07/19/1977 | US4037175 Variable delay device |
| 07/19/1977 | US4037174 Combined acoustic surface wave and semiconductor device particularly suited for signal convolution |
| 07/19/1977 | US4037121 Piezoelectrically driven tuning fork with harmonic suppression |
| 07/12/1977 | US4035775 Temperature compensated acoustic surface wave device |
| 07/12/1977 | US4035675 Capacitive tap weighted surface acoustic wave transducers |
| 07/12/1977 | US4035674 Quartz crystal vibrator |
| 07/12/1977 | US4035673 Hermetically sealed mount for a piezoelectric tuning fork |
| 07/05/1977 | US4034317 Ultrasonic delay lines and method of making the same |
| 06/14/1977 | US4030050 Acoustic surface wave filters |
| 06/07/1977 | US4028649 Surface acoustic wave filter |
| 06/07/1977 | US4028648 Tunable surface wave device resonator |
| 06/07/1977 | US4028647 Monolithic crystal filters |
| 06/07/1977 | US4028646 Elastic surface wave devices and method for making the same |
| 06/07/1977 | US4028565 Semiconductor visible image storage device |
| 05/31/1977 | US4027181 Housing and support for piezo-electric resonator |
| 05/24/1977 | US4025880 Elastic surface wave transmitting device for eliminating multiple transit echoes |
| 05/24/1977 | US4025879 Electromechanical reed filter |
| 05/24/1977 | US4025806 Suspension and package for piezo-electric resonators |
| 05/17/1977 | US4024480 Programmable, amplitude and phase, general transversal filter |
| 05/10/1977 | US4023124 Acoustic surface wave devices |
| 05/10/1977 | US4023120 Surface wave programmable oscillator |
| 05/10/1977 | US4023055 Mounting device for a quartz tuning fork |
| 05/03/1977 | US4021762 Quartz crystal compensation circuit |
| 05/03/1977 | US4021761 Filter circuit having an acoustic surface-wave filter device |
| 05/03/1977 | US4021657 Surface elastic wave memory correlator |
| 04/19/1977 | US4019074 LiNbO3 saw device |
| 04/12/1977 | US4017813 Surface acoustic wave notch filter |
| 04/12/1977 | US4017753 Shaped quartz crystal resonator |
| 04/12/1977 | US4017752 Piezoelectric ceramic resonator mounting means |
| 04/12/1977 | US4017751 Elastic volume wave convolution device |
| 04/05/1977 | US4016517 Signal bandpass filter apparatus |
| 04/05/1977 | US4016515 Bulk acoustic wave delay line |
| 04/05/1977 | US4016514 Diode coupled tapped acoustic delay line correlator and convolver |
| 04/05/1977 | US4016513 Surface wave convolver apparatus |
| 04/05/1977 | US4016512 Wide band bulk acoustic wave delay line |
| 04/05/1977 | US4016440 Particularly oriented plate-like monocrystalline piezoelectric body and acoustic surface wave filter device employing same |
| 03/22/1977 | US4013983 Surface wave electro-mechanical device |