Patents
Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116)
11/1993
11/11/1993WO1993022832A1 Bulk acoustic wave spectrum analyzer
11/11/1993WO1993022831A1 Weighted reflector for a surface-wave device
11/10/1993EP0569007A2 Surface acoustic wave device, and demodulating apparatus and communication system using the surface acoustic wave device
11/10/1993EP0513085B1 Surface acoustic wave filter
11/09/1993US5260675 Ladder-type electric filter device
11/09/1993US5260615 Magnetoelastic wave device
11/09/1993US5260596 Monolithic circuit with integrated bulk structure resonator
11/04/1993DE4313981A1 Surface wave component and measurement converter - includes directional measurement converter in which excitation section and reflection function are realised independently
11/02/1993CA1323912C Interdigital transductor for surface wave filter
10/1993
10/28/1993DE4213800A1 Gewichteter Reflektor für eine Oberflächenwellenanordnung Weighted reflector for a surface wave device
10/28/1993DE4213117A1 Weighted reflector structure for SAW devices - allows reflectivity to be varied from max. to zero by positioning of strips more closely in pairs having different distances between them
10/26/1993US5256929 Vibrator support structure
10/26/1993US5256927 Surface acoustic wave element having a wide bandwidth and a low insertion loss
10/26/1993CA1323639C Bending spring joint and process for its production
10/21/1993DE4212517A1 SAW device with quasi-periodic transitional structure - affords smooth transition for waves propagated between final strips of adjacent and unequally periodic multi-strip transducers
10/20/1993CN2144370Y Liner drawer type electric filter
10/19/1993US5254962 Combined acoustic wave device and ceramic block filter structure
10/13/1993EP0564881A1 Method and apparatus for an acoustic wave filter
10/13/1993EP0535219A4 Surface mountable piezoelectric device with in situ finish plate mask
10/12/1993US5252882 Surface acoustic wave device and its manufacturing method
10/05/1993US5250871 Low vibration sensitivity crystal resonator arrangement
10/05/1993US5250870 Ultra-thin surface mount crystal package
09/1993
09/29/1993EP0562876A1 Surface acoustic wave filter device
09/29/1993EP0562712A2 Apparatus for filtering noise from a periodic signal
09/22/1993EP0561677A1 Resonator for thermostatically regulated oscillator having low power consumption and rapid warm up
09/22/1993EP0561616A2 Piezoelectric/electrostrictive element having auxiliary electrode disposed between piezoelectric/electrostrictive layer and substrate
09/15/1993EP0560634A1 Surface acoustic wave device
09/15/1993EP0560507A1 Double-sided fluid sensor for reduced attenuation of shear transverse waves
09/14/1993US5245300 Intermediate frequency filter having a ceramic filter
09/08/1993EP0559343A1 Shear transverse wave device having selective trapping of wave energy
09/07/1993US5243556 Acoustic charge transport memory device
09/07/1993US5243307 Act device having optical control of saw velocity
09/07/1993US5243250 Surface acoustic wave convolver device
09/07/1993US5243249 Surface-acoustic-wave device
08/1993
08/25/1993EP0556811A1 Surface acoustic wave device
08/24/1993US5239517 Saw transducer with coplanar waveguide transition
08/19/1993WO1993016577A1 Sealed electronic package providing in-situ metallization
08/19/1993WO1993016522A1 Tunable resonator
08/18/1993CN1075340A Sealed electronic package providing in-situ metallization
08/17/1993US5237235 Surface acoustic wave device package
08/10/1993US5235240 Electrodes and their lead structures of an ultrathin piezoelectric resonator
08/10/1993US5235236 Surface acoustic wave device
08/10/1993US5235234 Surface acoustic wave device
08/10/1993US5235233 Surface acoustic wave device
08/10/1993US5235135 Sealed electronic package providing in-situ metallization
08/05/1993DE4202369A1 Alterungsbestaendiges glas fuer die ultraschallverzoegerung Alterungsbestaendiges glass for the ultraschallverzoegerung
08/04/1993EP0553718A1 Supporting structure for a vibrator
08/03/1993US5233261 Piezoelectric
08/03/1993US5233259 Film bulk acoustic resonator
07/1993
07/31/1993CA2086846A1 Microcircuit package with integrated acoustic isolator
07/27/1993US5231327 Optimized piezoelectric resonator-based networks
07/21/1993EP0551328A1 Piezoelectric component-mounting foil and foil-making method
07/20/1993US5229735 Wide frequency deviation voltage controlled crystal oscillator having plural parallel crystals
07/13/1993US5227739 Dielectrics of ceramic oxides of barium, silicon, aluminum, strontium and zirconium; electrode films of silver and copper; compact
07/13/1993US5227219 Comprising a polycarboxylic acid-hardened, amine-catalyzed epoxy resin; printed structures having a shallow gradient of slope
07/08/1993WO1993013595A1 Surface wave filter
07/08/1993WO1993013495A1 Passive surface wave sensor which can be wirelessly interrogated
07/06/1993US5226004 Surface acoustic wave filter device
06/1993
06/30/1993EP0548911A1 Surface acoustic wave filter which is simple in structure
06/30/1993EP0548862A1 Surface accoustic wave device
06/29/1993US5223762 Surface acoustic wave filter
06/22/1993US5221870 Diamond substrate with piezoelectric layer, semiconductor film , carbon film, electrodes and transducers
06/15/1993US5220234 Shear transverse wave device having selective trapping of wave energy
06/15/1993US5220230 Surface acoustic wave device
06/09/1993EP0545672A1 Low loss wide bandwidth parallel channel acoustic filter
06/08/1993US5218328 Structure for a resonator using an ultrathin piezoelectric substrate
06/08/1993US5218260 Longitudinal quartz crystal resonator
06/08/1993US5217018 Acoustic transmission through cladded core waveguide
06/01/1993US5216392 In a radio
06/01/1993CA1318521C Vibrating type transducer and manufacturing process thereof
05/1993
05/26/1993EP0543556A1 Spatially varying multiple electrode acoustic wave filter
05/26/1993EP0286664B1 Phase measuring device and method implementing a filter
05/25/1993US5214338 Energy coupler for a surface acoustic wave (SAW) resonator
05/25/1993US5213513 Electric terminal
05/25/1993US5212988 Plate-mode ultrasonic structure including a gel
05/19/1993EP0542323A1 Signal processing device
05/18/1993US5212420 Method and apparatus for surface acoustic wave reflector grating
05/12/1993EP0541284A1 Surface acoustic wave filter
05/04/1993US5208504 Saw device and method of manufacture
04/1993
04/29/1993WO1993008642A1 Band-pass filter on surface acoustic waves
04/29/1993WO1993008641A1 Surface wave filter having a folded acoustic path
04/29/1993DE4216035C1 Holder for oscillating quartz discs - has lug with mounting section for retaining marginal zone of quartz resonator disk
04/28/1993EP0539205A2 Phonon controlled conductivity device
04/28/1993EP0538317A1 A method for improving stop-band attenuation of a duplex filter
04/28/1993EP0386009B1 Surface wave device with conversion structure for preventing undesirable reflected waves
04/27/1993US5206460 Oscillator package
04/22/1993DE4234996A1 Magnetostatic-wave circuit element incorporating sound-absorbent layer - produced e.g. by implantation of impurity ions into non-magnetic substrate to suppress lattice vibrations
04/20/1993US5204575 Surface acoustic wave resonator
04/15/1993WO1993007463A1 Plate-mode ultrasonic structure including a gel
04/13/1993US5202652 Surface acoustic wave filter device formed on a plurality of piezoelectric substrates
04/08/1993CA2079992A1 Mutant human prourokinase
04/07/1993EP0535554A1 A surface acoustic wave device package
04/07/1993EP0535219A1 Surface mountable piezoelectric device with in situ finish plate mask
04/06/1993US5200664 Surface acoustic wave device
04/06/1993US5200663 Surface acoustic wave device provided with output transducer split into a plurality of portions, and communication system using the same
04/01/1993DE4132309A1 Stoneley wave component - having finger electrodes made of material and of height to produce no wave reflections
03/1993
03/31/1993EP0534411A1 Surface acoustic wave device
03/31/1993EP0534355A1 Method of manufacturing a surface acoustic wave device
03/31/1993EP0534354A1 Surface acoustic wave device and manufacturing method thereof
03/31/1993EP0534252A1 Surface acoustic wave device