Patents for H03H 3 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators (6,646) |
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03/16/1983 | EP0074252A2 Surface acoustic wave device |
03/01/1983 | US4375604 Method of angle correcting doubly rotated crystal resonators |
02/16/1983 | EP0071917A1 Electrical device, group of devices, or integrated circuit, the active part of which is placed on a metal support, and process for its or their manufacture |
02/01/1983 | US4371231 Electrically conductive connection of the active portions of an electrical component or of an integrated circuit to terminals |
01/18/1983 | US4369330 Housing for electrical components, component groups or integrated circuit |
01/18/1983 | CA1139583A1 Process for compensating temperature variations in surface wave devices and pressure transducer utilizing this process |
01/12/1983 | EP0069311A2 Glass encapsulated quartz oscillator |
01/11/1983 | CA1139431A1 Interface system for surface wave integratable filter |
12/21/1982 | US4365220 Surface wave circuit device |
12/21/1982 | US4365219 In-line surface acoustic wave filter assembly module and method of making same |
12/21/1982 | US4365216 Surface-acoustic-wave device |
12/21/1982 | US4365181 Piezoelectric vibrator with damping electrodes |
12/21/1982 | CA1138060A1 Elastic surface wave filter |
12/14/1982 | US4364017 Elastic surface wave device |
12/14/1982 | US4364016 Method for post fabrication frequency trimming of surface acoustic wave devices |
12/14/1982 | US4363990 Surface acoustic wave transducer |
12/07/1982 | US4362961 Encapsulated piezoelectric resonator device |
12/07/1982 | CA1137183A1 Acoustic wave filter |
12/07/1982 | CA1137182A1 Phase and amplitude programmable internal mixing saw signal processor |
11/24/1982 | EP0065389A2 Surface acoustic wave device |
11/23/1982 | US4360754 Mode suppressed piezoelectric device |
11/17/1982 | EP0064506A1 Improvements in or relating to methods of producing devices comprising metallised regions on dielectric substrates. |
11/10/1982 | EP0064382A2 Surface acoustic wave filter |
11/09/1982 | US4358745 Semiconductor surface acoustic wave device |
11/03/1982 | EP0063839A2 Acoustic wave bandpass electrical filters |
11/03/1982 | EP0063586A1 Surface acoustic wave device with reflectors. |
11/02/1982 | US4357584 Acoustic wave devices |
11/02/1982 | CA1134938A1 Remote acoustic wave sensors |
10/20/1982 | EP0063069A1 Temperature-independent acoustical wave treating system |
10/19/1982 | US4355290 Acoustic surface wave filter |
10/19/1982 | US4355257 Thickness shear type piezoelectric vibrator with integral mounting |
10/12/1982 | US4354166 Carrier concentration controlled surface acoustic wave resonator and oscillator |
10/12/1982 | US4354133 Hermetically sealed container |
10/12/1982 | US4354130 Operable at ultra-high frequency |
10/12/1982 | US4354129 Absorber for piezoelectric surface acoustic wave device |
10/06/1982 | EP0061648A2 Electrical device the active part of which is placed on a metal support, and process for the manufacture of the device |
10/05/1982 | US4353046 Surface acoustic wave device with reflectors |
10/05/1982 | US4353043 Surface acoustic wave devices and systems including such devices |
09/29/1982 | EP0060967A1 Surface acoustic wave semiconductor device |
09/28/1982 | CA1132719A1 Vacuum encapsulation for surface acoustic wave (saw) devices |
09/21/1982 | US4350963 Surface acoustic wave device |
09/21/1982 | US4350961 Electronic timepiece |
09/21/1982 | US4350916 Surface acoustic wave device having buried transducer |
09/21/1982 | CA1132211A1 Acoustic wave devices |
09/07/1982 | US4348650 Surface-acoustic-wave parametric device |
08/31/1982 | US4346537 Capacitor trimming system in a quartz-crystal oscillator |
08/31/1982 | US4346505 Method of fabricating piezoelectric transducer with polymer element |
08/24/1982 | US4346322 Elastic surface wave device |
08/18/1982 | EP0057773A1 Hydrothermal crystal growing process and apparatus |
08/17/1982 | US4345176 Temperature compensated gallium arsenide surface acoustic wave devices |
08/11/1982 | EP0057598A2 Acoustic surface wave device |
08/10/1982 | US4344051 Elastic surface wave transducer and filter incorporating such a transducer |
08/10/1982 | US4344049 Surface wave component |
08/10/1982 | US4343827 Method of fine-tuning a monolithic crystal filter |
08/10/1982 | CA1129511A1 Elastic surface wave device |
07/28/1982 | EP0056690A2 Surface acoustic wave resonator device |
07/27/1982 | US4342012 Surface acoustic wave device |
07/27/1982 | US4342011 Surface acoustic wave device |
07/20/1982 | US4340834 Surface acoustic wave resonator device |
07/20/1982 | CA1128214A1 Capacitor trimming system in a quartz-crystal oscillator |
07/06/1982 | US4338575 Process for compensating temperature variations in surface wave devices and pressure transducer utilizing this process |
06/30/1982 | EP0054988A1 Acoustic wave devices |
06/30/1982 | EP0054723A1 Surface acoustic wave resonator |
06/29/1982 | CA1126829A1 Acoustic wave devices |
06/22/1982 | US4336120 Method of fabricating a zinc oxide thin film |
06/09/1982 | EP0053533A1 Manufacturing method to reduce the ageing of piezo-electric resonators |
06/08/1982 | US4334167 Elastic surface wave device |
06/08/1982 | US4333842 Piezoelectric single crystal and surface acoustic wave element employing the same |
05/27/1982 | WO1982001790A1 Improvements in or relating to methods of producing devices comprising metallised regions on dielectric substrates |
05/25/1982 | US4331943 Acoustic wave devices having transverse mode distortions eliminated structurally |
05/19/1982 | EP0051942A2 Surface acoustic wave filter |
05/18/1982 | US4330767 Surface acoustic wave device |
05/18/1982 | CA1123970A1 Frequency adjustment of piezoelectric resonator utilizing low energy oxygen glow device for anodizing electrodes |
05/13/1982 | WO1982001629A1 Surface acoustic wave device with reflectors |
05/12/1982 | EP0051166A1 Process for the stress-free development of irradiated polymethylmethacrylate layers |
04/27/1982 | CA1122723A1 Method of making a quartz resonator |
04/27/1982 | CA1122429A1 Surface acoustic wave (saw) pressure sensor structure |
04/20/1982 | US4326142 Piezoelectric resonators |
04/13/1982 | US4325037 Acoustic wave filter |
03/31/1982 | EP0048689A1 Quartz thermometer |
03/23/1982 | CA1120544A1 Frequency adjusting a piezoelectric device by lasering |
03/16/1982 | US4320320 Coupled mode tuning fork type quartz crystal vibrator |
03/09/1982 | CA1119709A1 Acoustic surface wave resonator devices |
02/16/1982 | US4316162 Magnetostatic wave device containing attenuation means and the way of making it |
02/09/1982 | US4315228 Multiple co-surface acoustic wave filters |
02/09/1982 | US4314393 Method of manufacturing acoustic surface wave device |
02/02/1982 | US4314215 Surface acoustic wave filter device with equalization of stray coupling |
02/02/1982 | US4314214 Magnetostatic-wave device comprising a conducting strip exchange structure |
01/27/1982 | EP0044732A2 Acoustic surface wave transducer with improved inband frequency characteristics |
01/05/1982 | US4309680 Electro-mechanical filter including mechanical resonator |
01/05/1982 | US4309679 Surface acoustic wave filter |
01/05/1982 | CA1115791A1 Surface acoustic wave devices |
12/29/1981 | US4308510 Surface acoustic wave filter |
12/22/1981 | US4307356 Surface acoustic wave device |
12/22/1981 | US4306343 Device and method for the assembly of crystal resonators |
12/08/1981 | US4305158 Television tuner |
12/01/1981 | CA1113554A1 Surface wave device having enhanced reflectivity gratings |
11/25/1981 | EP0040559A1 Piezoelectric convolution device using elastic waves |
10/13/1981 | US4295108 Filter circuit employing surface acoustic wave device |
10/13/1981 | US4293986 Vacuum, alloying |