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