Patents
Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116)
02/2000
02/03/2000WO2000005812A1 Piezo-oscillator and production method thereof
02/02/2000EP0977357A2 Low loss saw filters with non-sequential coupling and method of operation thereof
02/02/2000EP0977356A1 Reflection inversion surface acoustic wave transducer and filter
02/01/2000US6020797 Electrode connection configuration and method for a multi-pole monolithic crystal filter
02/01/2000US6020672 Surface acoustic wave converter with improved frequency characteristics, surface acoustic wave device using such converter, and communication system using such device
01/2000
01/26/2000CN1048834C Piezo-resonator
01/25/2000US6018641 Radio IC card system
01/25/2000US6018281 Resonator type surface acoustic wave ladder filter with voltage variable capacitance element
01/25/2000US6018211 Surface acoustic wave device and method of manufacturing the same
01/25/2000CA2182050C Surface acoustic wave device
01/20/2000DE19822501A1 Surface acoustic wave component for remotely controlled sensor for voltage measurement
01/19/2000EP0973257A2 Surface acoustic wave matched filter
01/19/2000EP0973256A1 Thin film piezoelectric element
01/19/2000CN1241843A Multi-channel subband synthesis filter for MPEG audio
01/18/2000US6016025 Selected overtone resonator with channels
01/18/2000US6016024 Piezoelectric component
01/18/2000US6014799 Method of manufacturing a piezoelectric resonator
01/18/2000CA2068538C Inductive input/output coupling for a surface acoustic wave device
01/12/2000EP0680663B1 Method of mounting a piezoelectric element to a substrate
01/05/2000EP0969529A1 Piezoelectric ceramic composition and piezoelectric element using the piezoelectric ceramic composition
01/05/2000DE19928596A1 Semiconductor bulk acoustic resonator (SBAR) e.g. for microwave monolithic integrated circuits (MMICs) has viscous damping material located at edges, metal electrodes which are renewing
01/05/2000DE19926944A1 Holder and support for oscillating quartz disc is supported on seal area of special properties, and legs bent and with cut-out sections, allowing flexible mechanical movement at high frequencies
01/05/2000CN1240313A Quartz oscillation chip holder and making method thereof
01/05/2000CN1048126C Electrode forming method for surface acoustic wave device
01/04/2000US6011451 Chip type piezoelectric filter having internal common electrodes or a shield electrode
01/04/2000US6011344 Surface acoustic wave transducer driven in differential mode
12/1999
12/29/1999WO1999059244A3 Thin-layered piezo-resonator
12/22/1999EP0966101A2 Surface acoustic wave filter
12/22/1999CN1239603A Surface acoustic wave appts. and method of prodn. thereof
12/22/1999CN1239394A Piezoelectric acoustic component
12/22/1999CN1239354A Surface-acoustic-wave filter having improved suppression outside pass-band
12/21/1999US6005331 Monolithic crystal filter
12/21/1999US6005330 Piezoelectric component and method of producing same
12/21/1999US6005329 Method and apparatus for sealing piezoelectric resonator via laser welding
12/21/1999US6005326 Surface acoustic wave device
12/21/1999US6005325 Surface acoustic wave device
12/21/1999US6003378 Pressure sensor using elements operating with acoustic surface waves (saw elements)
12/16/1999WO1999065141A1 Surface acoustic wave filter, and shared device for antenna
12/16/1999WO1999065087A1 Oven-heated crystal resonator and oscillator assembly
12/16/1999DE19924933A1 A surface acoustic wave device e.g. for edge reflection
12/16/1999DE19924014A1 Lead titanate-based piezoelectric ceramic for piezoelectric oscillators
12/16/1999DE19923476A1 Chip shaped piezoelectric resonator for use in oscillator or filter
12/16/1999DE19922148A1 Surface mounting piezoelectric acoustic component for alarm or receiver in electronic device
12/16/1999DE19922146A1 Piezoelectric resonator for band blocking circuit or discriminator
12/15/1999CN1238597A Method for adjusting frequency of piezoelectric resonator
12/15/1999CN1238245A 压电振子 The piezoelectric vibrator
12/14/1999US6002308 Piezoelectric filter with a capacitor on a substrate having an unpolarized portion
12/09/1999WO1999063663A1 Transducer with surface acoustic waves with low gap
12/09/1999WO1999063662A1 Unidirectional transducer etched with surface acoustic waves
12/09/1999DE19923963A1 Surface acoustic wave filter for piezoelectric substrate
12/09/1999DE19923962A1 Surface acoustic wave filter
12/09/1999DE19923286A1 Surface acoustic wave filter apparatus e.g. for a bandpass filter in a cellular phone
12/09/1999DE19854606A1 Acoustic electronic component for remote diagnosis
12/09/1999CA2333772A1 Transducer with surface acoustic waves with low gap
12/09/1999CA2297799A1 Unidirectional transducer etched with surface acoustic waves
12/08/1999EP0963040A2 Acoustic resonator and method for making the same
12/08/1999EP0963000A2 Resonator structures
12/08/1999EP0962999A2 Resonator structures
12/08/1999EP0962052A1 Temperature insensitive silicon oscillator and precision voltage reference formed therefrom
12/08/1999CN1237830A 压电谐振器 The piezoelectric resonator
12/08/1999CN1237829A Chip-type resonator comprising
12/08/1999CN1237828A Resonator structures
12/08/1999CN1237827A Resonator structures
12/08/1999CN1237561A Piezoelectric ceramic, method for producing piezoelectric ceramic, and piezoelectric oscillator
12/07/1999US5999069 Surface acoustic wave ladder filter having a parallel resonator with a larger electrostatic capacitance
12/07/1999US5999068 Surface acoustic wave filter of multi-stage connection type
12/07/1999US5998907 Surface acoustic wave devices and their manufacturing method
12/07/1999US5996199 Method of manufacturing surface acoustic ware modules
12/02/1999DE19922124A1 Surface acoustic wave filter for mobile communication devices for e.g. a cellular phone
12/02/1999DE19821527A1 Oscillation circuit for monolithic integration in electronic circuit
12/01/1999EP0961405A2 Surface acoustic wave filter device
12/01/1999EP0961404A2 Surface-acoustic-wave filter having an improved suppression outside a pass-band
12/01/1999CN1237288A Surface acoustic wave apparatus
12/01/1999CN1237036A Surface acoustic wave device
12/01/1999CN1237035A Method of manufacturing chip type electronic element
12/01/1999CN1236758A Piezoelectric ceramic composition and piezoelectric element using piezoelectric ceramic composition
12/01/1999CN1047043C Surface assembling electronic unit
11/1999
11/30/1999US5995806 Radio data transmitter and receiver
11/30/1999US5994980 Elastic surface acoustic wave filter device with balanced and unbalanced input/output terminals
11/30/1999US5991989 Method of manufacture of surface acoustic wave device
11/30/1999CA2153022C Circuit-like metallic foil sheet for resonance frequency characteristic tag and the like and process for fabricating it
11/25/1999WO1999060700A1 Saw filter, antenna sharing device using the same, and mobile communication terminal using the same
11/25/1999DE19827848C1 Holder for vibrating quartz plate can even be used at high frequencies greater than 14 MHz, whereby damage to the quartz plate from additional mechanical loads is prevented
11/25/1999DE19820049A1 Thermomechanisches Verfahren zum Planarisieren einer fototechnisch strukturierbaren Schicht, insbesondere Verkapselung für elektronische Bauelemente A thermo-mechanical method for planarizing a photo technically be structured layer, in particular encapsulation of electronic components
11/24/1999EP0862813B1 Differential-driven surface acoustic wave transducer
11/24/1999CN1236505A Surface acoustic wave device and method of producing the same
11/24/1999CN1236220A Surface mounting type piezoelectric element
11/24/1999CN1236203A Electronic part and method of manufacturing the same
11/23/1999US5990762 Surface acoustic wave filter and multistage filter with multiple inside busbar lead-out electrodes
11/18/1999WO1999059244A2 Thin-layered piezo-resonator
11/18/1999DE19922114A1 Resonator type surface acoustic wave filter
11/17/1999EP0957663A2 Electronic part and a method of manufacturing the same
11/17/1999EP0957577A2 Surface acoustic wave device
11/17/1999EP0957576A2 Surface acoustic wave devide
11/17/1999CN1235412A Ladder-type piezoelectric filter and method of manufacturing the same
11/17/1999CN1235411A Ladder-type piezoelectric filter
11/16/1999US5986524 Surface acoustic wave resonator filter with a weighted asymmetrical interdigital electrode
11/16/1999US5986523 Edge reflection type longitudinally coupled surface acoustic wave filter
11/16/1999US5986522 Piezoelectric filter of the ladder type
11/16/1999US5986382 Surface acoustic wave transponder configuration