Patents
Patents for H03H 9 - Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (20,116)
04/2002
04/10/2002CN1344064A Piezoelectric ceramics compsn. for surface sonic wave element and surface sonic wave element
04/10/2002CN1344022A Surface electrode structure on ceramic multilayer substrate and its mfg. method
04/10/2002CN1082728C Terminal for piezoelectric device
04/09/2002USRE37639 Surface-acoustic-wave filters with poles of attenuation created by impedance circuits
04/09/2002US6369674 Broad-band surface acoustic wave filter with specific ratios of transducer electrode period to reflector period
04/09/2002US6369673 Surface acoustic wave filter with terminal electrode coating film
04/09/2002US6369672 Surface acoustic wave filter and communications apparatus using the same
04/09/2002US6369667 Surface acoustic wave device and communication device utilizing shear horizontal waves
04/09/2002US6369491 Surface acoustic wave device and method for manufacturing the same
04/09/2002US6369490 Base electrode is made of nicr and reduces orientation of the intermediate electrode and the intermediate electrode is made of one of al and an alloy including al.
04/09/2002US6369489 Piezoelectric component
04/09/2002US6369488 Piezoelectric device
04/09/2002US6369487 Piezoelectric resonance component
04/09/2002US6369374 Filter including a micro-mechanical resonator
04/09/2002US6367133 Method of manufacturing surface acoustic wave apparatus
04/04/2002WO2002027810A2 Piezoelectric transformer and operating method
04/04/2002US20020039056 Surface-acoustic-wave filter having an improved suppression outside a pass-band
04/04/2002US20020038989 Acoustic wave resonator and method of operating the same to maintain resonance when subjected to temperature variations
04/04/2002US20020038985 Surface acoustic wave device and method of producing the same
04/04/2002DE10146363A1 Surface acoustic wave component e.g. SAW filter, has piezoelectric substrate with interdigital converters in metal or alloy heavier than aluminum
04/04/2002DE10130836A1 Oberflächenwellenbauelement und Verfahren zum Herstellen desselben Of the same surface acoustic wave device and methods for making
04/04/2002DE10045382A1 Medical instrument location system comprises piezoelectric radio reflectors which do not require line of sight
04/03/2002EP1193870A2 Surface-acoustic-wave filter
04/03/2002EP1193869A2 Surface-acoustic-wave filter
04/03/2002CN1343044A Frequency feature regulating method for edge reflection-type surface acoustic wave device and manufacturing method
04/03/2002CN1343043A Piezoelectric device and manufacturing method thereof and manufacturing method for piezoelectric oscillator
04/02/2002US6366182 Ladder-type piezoelectric filter having a substantially square resonator with the four corners cut
04/02/2002US6366181 Adjusting method for group-delay characteristics of piezoelectric resonators
04/02/2002US6366179 Surface acoustic wave element having two filters with more IDTs in the lower frequency filter
04/02/2002US6366002 Litao3 substrate; and an interdigital transducer containing as a major component at least one of au, ag, ta, mo, cu, ni, cr, zn, and w; normalized film thickness h/lambda of 0.001-0.05 to excite a shear horizontal wave.
04/02/2002US6363773 High-sensitivity instrument to measure NVR in fluids
03/2002
03/28/2002WO2002025811A1 Component having an acoustically active material
03/28/2002US20020036550 Surface acoustic wave filter
03/28/2002US20020036549 Surface acoustic wave resonator and surface acoustic wave filter using the same
03/28/2002US20020036546 Piezoelectric oscillator and a method for manufacturing the same
03/28/2002US20020036448 Piezoelectric generator and mounting structure therefor
03/28/2002DE10142158A1 Piezoelektrischer Resonator und elektronische Vorrichtung, die denselben enthält Piezoelectric resonator and electronic device that contains the same
03/28/2002DE10045090A1 Akustischer Resonator An acoustic resonator
03/27/2002EP1191829A2 Surface electrode structure on ceramic multi-layer substrate and process for producing the same
03/27/2002EP1191688A2 Increased bandwidth thin film resonator having a columnar structure
03/27/2002EP1190484A1 Converter for surface acoustic waves
03/27/2002EP0962052A4 Temperature insensitive silicon oscillator and precision voltage reference formed therefrom
03/27/2002CN1342041A Electronic device of sealed electronic element and manufacturing method and printed wiring board
03/27/2002CN1081835C 压电元件及其制造方法 The piezoelectric element and its manufacturing method
03/26/2002US6362561 Piezoelectric vibration device and piezoelectric resonance component
03/26/2002US6362543 Magnetostrictive surface acoustic wave devices with transducers tuned for optimal magnetic anisotropy
03/26/2002US6362518 Electronic compoment to be mounted on a circuit board having electronic circuit device sealed therein and method of manufacturing the same
03/21/2002WO2002023720A1 Acoustic resonator
03/21/2002WO2002009278A3 Surface wave devices with static electric field
03/21/2002US20020033652 Piezoelectric device, manufacturing method therefor, and method for manufacturing piezoelectric oscillator
03/21/2002US20020033650 Surface acoustic wave device
03/20/2002EP1189346A2 Surface acoustic wave filter and communication apparatus with the same
03/20/2002CN1340916A Longitudinally connected resonator type sound surface wave filter
03/20/2002CN1340915A Sound wave resonator and method for its operation when temperature changes to maintain harmonic vibration
03/20/2002CN1340914A Piezoelectric oscillator
03/20/2002CN1340856A RF module member including surface elastic wave element and its manufacture method
03/20/2002CN1340478A Piezoelectric ceramic composition and piezoelectric ceramic elmeent using the said composition
03/19/2002US6359532 Energy trapping type piezoelectric filter with a shielding conductive member on a bottom insulating base plate upper surface
03/19/2002US6359368 Surface acoustic wave reflector
03/14/2002US20020031855 Method of manufacturing a hybrid integrated circuit comprising a semiconductor element and a piezoelectric filter
03/14/2002US20020030564 Die layout for SAW devices and associated methods
03/14/2002US20020030424 High frequency piezoelectric resonator
03/14/2002US20020030420 Piezoelectric resonator and electronic device incorporating the same
03/14/2002US20020030419 Piezoelectric resonator, piezoelectric resonator component and method of making the same
03/13/2002EP1187325A2 Multilayer type piezoelectric filter
03/13/2002EP1187324A2 Surface acoustic wave device
03/13/2002EP1187323A1 Crystal vibration device
03/13/2002EP1187322A2 Piezoelectric device and method of manufacturing it
03/13/2002EP1187321A2 Piezoelectric device and method of manufacturing it
03/13/2002EP1187320A2 Method for manufacturing radio frequency module components with surface acoustic wave element
03/13/2002EP1187319A2 Lead frame set and saw filter using the same
03/13/2002EP1187318A2 Acoustic resonator
03/13/2002EP1082812B1 Transducer with surface acoustic waves with low gap
03/13/2002EP1018215B1 Unidirectional surface acoustic wave filter
03/13/2002CN1340241A Antenna duplexer
03/13/2002CN1340240A Surface wave device connected to a base with conductive adhesive
03/13/2002CN1339829A Piezo-electric ceramic material, sintered piezo-electric ceramic pressed block and piezo-electric ceramic device
03/13/2002CN1080953C Multiple mode piezoelectric filter
03/13/2002CN1080952C A surface acoustic wave filter element and a surface acoustic wave filter made by package it
03/12/2002US6356167 Surface acoustic wave resonator, surface acoustic wave filter, duplexer communications apparatus and surface acoustic wave apparatus, and production method of surface acoustic wave resonator
03/12/2002US6356006 Diamond wafer, method of estimating a diamond wafer and diamond surface acoustic wave device
03/12/2002US6355498 Thin film resonators fabricated on membranes created by front side releasing
03/07/2002WO2002019522A1 Surface acoustic wave devices using non-symmetric optimized cuts of a piezoelectric substrate
03/07/2002WO2002019520A2 Resonator with preferred oscillation mode
03/07/2002US20020027485 Saw filter and method for manufacturing the same
03/07/2002US20020027397 Mixed oxide
03/07/2002US20020027296 Methods for producing packaged integrated circuit devices & packaged integrated circuit devices produced thereby
03/07/2002DE10140396A1 Piezoelektrischer Keramikwerkstoff, gesinterter piezoelektrischer Keramikpressling und piezoelektrische Keramikvorrichtung A piezoelectric ceramic material, of sintered piezoelectric ceramic compact and piezoelectric ceramic device
03/07/2002DE10138335A1 Oberflächenwellen-Bauteil Surface wave component
03/07/2002DE10039824A1 Resonator filter based on surface acoustic waves e.g. bandpass filter, has two or more one-port resonator structures and planar cavities of differing lengths
03/06/2002EP1184979A2 Radio frequency module parts including surface elastic wave elements and manufacturing method thereof
03/06/2002EP1184978A2 Surface acoustic wave device and method of producing the same
03/06/2002CN1339138A Surface acoustic wave converter and identification system using the same
03/06/2002CN1338821A Surface wave device
03/06/2002CN1338820A Longitudinal coupling resonator style surface wave filter
03/06/2002CN1338819A Surface wave device
03/05/2002US6353372 Dual-mode surface acoustic wave filter with split input/output converters determining impedance
03/05/2002US6353371 Transversely coupled resonator type surface acoustic wave filter and longitudinally coupled resonator type surface acoustic wave filter
02/2002
02/28/2002WO2002017484A1 Saw radio sensor
02/28/2002WO2002017483A1 Surface acoustic wave filter device