Patents
Sitemap › H03 - Basic electronic circuitry › H03H - Impedance networks, e.g. resonant circuits; Resonators › H03H 3 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
Patents for H03H 3 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators (6,646)
09/1981
09/30/1981EP0036671A1 Container for electrical devices, groups of devices or integrated circuits
09/22/1981US4291285 Surface acoustic wave device and method of manufacturing
09/08/1981US4288765 Frequency selector apparatus
09/08/1981US4288284 Method of producing housing element for quartz crystal oscillator
09/08/1981CA1108746A1 Acoustic wave devices employing surface skimming bulk waves
08/1981
08/26/1981EP0034351A2 Surface acoustic wave device
08/18/1981US4284946 Failure monitor for crystal filters
08/11/1981CA1106960A1 Method of adjusting the frequency of a crystal resonator
08/05/1981EP0033097A2 Isolating and temperature compensating system for crystal resonators
07/1981
07/28/1981US4281407 Surface acoustic wave pickup and recording device
07/28/1981US4281301 Acoustic wave devices
07/14/1981US4278492 Frequency trimming of surface acoustic wave devices
07/08/1981EP0031685A2 Surface acoustic wave device
06/1981
06/30/1981US4276524 Acoustic surface wave device
06/24/1981EP0030854A2 Surface acoustic wave transducer
06/09/1981US4272742 Acoustic wave devices with temperature stabilization
05/1981
05/27/1981EP0029065A1 Acoustic wave device
05/26/1981US4270105 Stabilized surface wave device
05/20/1981EP0028823A1 Electrically conductive connection between the active parts of an electrical component or an integrated circuit with contact points
05/20/1981EP0028783A1 Method of securing a piezoelectrical resonator onto a base
05/19/1981US4268808 Acoustic wave device
05/13/1981EP0028265A1 Acoustic surface wave device
05/05/1981US4265124 Remote acoustic wave sensors
04/1981
04/29/1981EP0027674A1 Process for producing a disc resonator with a single crystal of magnetic garnet material
04/29/1981EP0027544A2 Acoustic surface wave component
04/28/1981US4263702 Method of making a quartz resonator
04/21/1981US4263569 Surface acoustic wave arrangement with improved suppression of spurious signals
04/14/1981US4262268 Composite pi-section LC filter assembly and method of manufacture
04/02/1981WO1981000939A1 Surface acoustic waves converter
04/01/1981EP0026114A1 Surface acoustic wave device
03/1981
03/24/1981US4258342 Elastic surface wave device
03/17/1981US4257021 Elastic surface wave filter
03/11/1981EP0024927A2 Surface acoustic wave resonator device
03/03/1981US4254388 Frequency selector apparatus
03/03/1981US4254387 Acoustic wave devices
02/1981
02/24/1981US4253119 Interface system for surface wave integratable filter
01/1981
01/28/1981EP0023109A1 Surface acoustic wave filter device
01/27/1981US4247836 Acoustic wave devices
01/27/1981US4247835 Surface acoustic wave devices
01/27/1981US4247827 Surface acoustic wave filter arrangement
01/21/1981EP0022700A1 Magnetostatic wave device comprising a conductive-track changing structure
01/20/1981US4246554 Inductorless monolithic crystal filter network
01/13/1981US4245201 Lithium tantalate substrate
01/13/1981US4245200 Lithium tantalate substrate
01/13/1981CA1093677A1 Method of modifying the temperature drift of the propagation time of surface elastic waves and a device obtained by said method
01/07/1981EP0021878A1 Magnetostatic wave device comprising attenuating means, and process for its manufacture
01/06/1981US4243960 Method and materials for tuning the center frequency of narrow-band surface-acoustic-wave (SAW) devices by means of dielectric overlays
12/1980
12/24/1980WO1980002896A1 Method for adjusting vibration frequency of tuning fork type vibrator,and apparatus therefor
12/10/1980EP0019632A1 Quartz crystal resonator
12/02/1980CA1090915A1 Surface acoustic wave apparatus
11/1980
11/27/1980WO1980002626A1 Acoustic wave device
11/26/1980EP0019511A1 Process for compensating temperature variations in surface-wave devices and pressure sensor for carrying out this process
11/25/1980US4236095 Surface acoustic wave device comprising piezoelectric substrate having zinc oxide layer on α-alumina layer
11/25/1980US4235663 Oxides of bismuth, germanium, gallium and group 2a
11/18/1980US4234860 Piezoelectric filter and process for the manufacture thereof
11/18/1980US4234859 Elastic surface wave device and method for making the same
11/13/1980WO1980002485A1 Elastic surface wave apparatus
11/11/1980US4233573 Carrier concentration controlled surface acoustic wave variable delay devices
11/11/1980US4233135 Method of fabricating piezoelectric thin film
11/04/1980US4232239 Frequency adjustment of piezoelectric resonator utilizing low energy oxygen glow device for anodizing electrodes
11/04/1980US4232109 Method for manufacturing subminiature quartz crystal vibrator
11/04/1980CA1089114A1 Method of producing a dielectric of two-layer construction
11/04/1980CA1089084A1 Acoustic surface wave devices
11/04/1980CA1089083A1 Acoustic surface wave devices
10/1980
10/15/1980EP0017467A1 Method of manufacturing acoustic surface wave device
10/15/1980EP0016979A1 Acoustic wave filter
10/02/1980WO1980002090A1 Filter based on the use of surface acoustic waves
09/1980
09/30/1980US4224725 Method for manufacturing an acoustic surface wave interaction device
09/23/1980US4224683 Multiple-channel acousto-electric convolver
09/23/1980US4224547 Adjusting the frequency of piezoelectric crystal devices via fracturing the crystal surface
09/16/1980US4223286 Surface acoustic wave resonator
09/16/1980US4223285 Elastic surface wave filter
08/1980
08/26/1980US4219754 Temperature compensation by positioning of plural piezoelectric vibrators in an electronic wristwatch
08/26/1980CA1084443A1 Method of adjusting the frequency of piezoelectric resonators
08/19/1980US4218631 Electrode structure for thickness mode piezoelectric vibrating elements
08/06/1980EP0014117A1 Surface acoustic wave transducer and filter comprising same
08/05/1980US4216401 Surface acoustic wave (SAW) pressure sensor structure
07/1980
07/29/1980CA1082798A1 Magnetostrictive elastic surface wave structure
07/23/1980EP0013392A1 Dividing network
07/15/1980US4213104 Vacuum encapsulation for surface acoustic wave (SAW) devices
07/08/1980US4211947 Thickness-shear mode quartz oscillator with an added non-circular mass
07/01/1980US4210883 Technique for widening the temperature range of surface acoustic wave reflection array filters
06/1980
06/24/1980US4209759 Magnetoelastic surface wave interaction device
06/24/1980US4209725 Selenium layer piezoelectric device
06/24/1980CA1080348A1 Surface wave device for use in a ghost cancellation system
06/24/1980CA1080343A1 Coil and microphone mounting for frequency correction in mechanical resonators
06/12/1980WO1980001226A1 Inductorless monolithic crystal filter network
06/10/1980US4207546 Phase and amplitude programmable internal mixing SAW signal processor
06/03/1980US4206426 Multiple pole surface wave acoustic filters employing angled grooved distributed reflector arrays
05/1980
05/27/1980US4205248 Quartz crystal vibrator electrode configuration
05/20/1980US4204178 Acoustic wave devices
05/13/1980US4203082 Surface acoustic wave filter
05/13/1980CA1077615A1 Integrally sintered ceramic complex and method of manufacturing the same
05/06/1980US4201964 Elastic surface wave device
04/1980
04/30/1980EP0010227A1 Piezoelectric resonator
04/29/1980US4200849 Tuned unidirectional surface wave transducer
04/29/1980CA1076668A1 Coarse and fine adjustment warp coil
04/15/1980CA1075782A1 Surface acoustic wave device
03/1980
03/18/1980US4194171 Zinc oxide on silicon device for parallel in, serial out, discrete fourier transform
03/11/1980US4193045 Temperature compensated surface acoustic wave oscillators
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