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Patent Searching and Data


Matches 351 - 400 out of 836

Document Document Title
JP2005313276
To stably prepare a piezoelectric driving type MEMS element with high reliability.This element is provided with a piezoelectric film 8 provided across a recessed part 2 on a substrate 1 having the recessed part 2, piezoelectric driving m...  
JP2005315661
To provide a capacitance temperature sensor, which has a high dielectric constant at a low temperature, which has no residual polarization characteristic, which realizes high temperature sensitivity S=ΔC/ΔT and high absolute sensitivit...  
JP3735687
To provide an electret-improved filter medium manufactured from a fiber, for example, a meltblown superfine fiber. This electret filter medium contains a nonwoven web of thermoplastic, nonconductive microfibers having trapped charge. Thi...  
JP2005308745
To provide a capacity type pressure sensor which can tap an impossible temperature range for a silicon pressure sensor.A first wafer supports an evaluation circuit and a capacitive electrode which are required to measure mainly an applie...  
JP3733416
To provide an electret having high secondary non-linear optical characteristics by a method wherein the electret consists of a polar high- molecular thin film, which is formed on a glass substrate and is turned into an electret, and the ...  
JP2005262497
To provide a laminated sheet for an electret fixing electrode capable of sharply enhancing microphonic sensitivity when used in an electret condenser type microphone, having large charge holding power, excellent in properties as an elect...  
JP2005260208
To provide a thin film piezoelectric actuator having a stable structure which can be easily controlled, has a wide driving range and a low driving voltage.In a thin film piezoelectric actuator of a double-clamped beam structure having a ...  
JP2005243965
To provide a varactor that prevents a Q value from lowering caused by voltage application in a desired frequency, maintains the high Q value regardless of the voltage application, and lowers an insertion loss and phase characteristics.Th...  
JP2005236390
To provide a directivity variable array antenna having superior characteristics, such as electric power resistance, low distortion and low loss.The directivity variable array antenna 100 is provided with a radiation element 11a, to which...  
JP2005236389
To provide an array antenna, whose directivity can be controlled and equipped with a stable variable phase shifter with small waveform distortions and intermodulation distortions, superior withstanding power, at a low loss.In the array a...  
JP2005236391
To provide a variable attenuation circuit that exhibits only small waveform distortions and intermodulation distortion and that is superior in electric power resistance.The variable attenuation circuit At comprises a distributor for dist...  
JP2005217852
To provide a tunable filter in which a pass band is variable in a wide frequency region, the pass band can be continuously varied, insertion loss is small, an interrupting characteristic is steep, downsizing is possible, and reliability ...  
JP2005191208
To provide a small-size, highly reliable, and high performance electret capacitor which shows excellent moisture-proof characteristic and includes an electret formed of silicon oxide film.The electret capacitor comprises a first electrod...  
JP2005191467
To provide the manufacturing method of a laminated plate for electret-fixing electrode, in which charge holding force is large, charge attenuation is small, and further adhesive properties between a metal plate and an electret material l...  
JP2005184270
To provide a stabilized variable phase shift circuit exhibiting excellent withstand power and low loss in which waveform distortion and intermodulation distortion are suppressed.In the variable phase shift circuit P having a transmission...  
JP2005183437
To provide electlet capacitor which ensures excellent moisture-resistant characteristic.An electlet silicon oxide film 7 formed on a silicon substrate 6 is sandwiched by an insulating film 9 and a metal film 8, thereby preventing the sil...  
JP2005175365
To obtain a capacity variable substrate that can decrease parasitic capacity of a substrate, as well as adjusting its parasitic capacity, and to obtain a substrate parasitic capacity adjustment method for adjusting substrate's parasitic ...  
JP3692090
To provide a multi-layer electret having ultra-high charge stability with excellent thermal resistance so as to attain a work by the surface mount technology and to provide a method of manufacturing thereof. The multi-layer electret is c...  
JP2005150466
To provide a variable capacitor reduced in nonlinear distortion, high in electric power resistance, with the amount of its variable capacitance practically unaffected by high-frequency voltages.The variable capacitor has a function to ch...  
JP2005140779
To prevent contamination of electrical noises in a conditional electronic circuit of a capacitive fluid pressure detective transducer.The capacitive fluid pressure detective transducer (10') has a detection element (12) provided in a cap...  
JP2005136607
To provide a variable resonant circuit in which waveform distortion and inter-modulation distortion are small and which is superior in electric power resistance and has low loss.The variable resonant circuit R has an impedance element an...  
JP2005136074
To provide a capacitor which can obtain a required capacitance value with high precision and is excellent in response in a high frequency region.The lower surface of a dielectric layer 5 is smaller than the upper surface of a lower elect...  
JP2005108887
To provide a variable capacitor which is capable of restraining its Q-value from decreasing, due to the application of a voltage at a desired frequency, and to provide a variable filter which can be reduced in insertion loss and phase ch...  
JP2005079168
To provide a variable capacitor which exhibits the small rate of a capacitance change caused by high-frequency signals even when the rate of a capacitance change caused by a DC bias voltage is set large, shows a small intermodulation dis...  
JP2005064437
To provide a variable capacitor wherein a bias signal is applied stably to a varactor, miniaturization is realized, handling is easy, waveform distortion, intermodulation distortion, etc. are small, electric power resistance is also supe...  
JP2005050865
To provide a capacitor device which can restrain higher harmonic which is generated when a high frequency signal is inputted into a variable capacitor.In the capacitor device, a first variable capacitor C1, and a second variable capacito...  
JP3638160
PURPOSE: To provide an electret that has a high melting point and can be introduced to a semiconductor manufacturing process for easily achieving fine machining and thinning. CONSTITUTION: An SiO2 film 1 has a band structure consisting o...  
JP2004354199
To provide a multivariate detection sensor capable of detecting the multivariate with a single detector, having a simple structure, and to provide a method for identifying a plurality of physical quantities for identifying the objective ...  
JP2004327868
To provide a capacity variable thin film capacitor element which enlarges a usable frequency range and restrains characteristic defect and deterioration of reliability, and a high frequency component using it.First to Nth variable capaci...  
JP2004327983
To provide a multilayer electronic component for a plated termination for a multilayer electronic component, for example, for a capacitor, for a resistor, for an inductor, or for an integrated passive element.In a plated termination, a p...  
JP2004309280
To provide a capacitive detection type oscillation gyroscope in which the power supply dependent accuracy of a detection signal against the variation in the power supply voltage is improved.A capacitive detection circuit 3 is provided fo...  
JP2004312023
To provide a termination feature for a multilayer electronic component.The plated termination in question is guided and fixed by an exposed internal electrode tab that can be selectively extended on a cover layer of the multilayer compon...  
JP3599558
To provide the manufacturing method of a variable-capacitance element for high frequency at a low cost that can be readily formed on a ceramic substance, of which capacitance changes greatly at low voltage, and of which the capacitor cha...  
JP3599528
To provide a variable capacitance element the capacitance of which can be changed largely under a low voltage by successively providing a lower electrode, a thin dielectric film, and an upper electrode on a substrate, with the thin diele...  
JP2004259993
To provide a variable capacitance thin film capacitor with a small capacitance change by a high frequency signal and a large capacitance change by a DC bias, and to provide a high frequency component utilizing the variable capacitance th...  
JP2004241439
To provide a variable capacitance thin film capacitor which changes little in capacitance with high-frequency signals, varies much in capacitance with a DC bias, is protected against disconnection, and is restrained from deteriorating it...  
JP2004241440
To provide a variable capacitance thin film capacitor which changes little in capacitance with high-frequency signals, varies much in capacitance with a DC bias, and is small in size, and to provide a high-frequency component using the s...  
JP2004235362
To provide a method of adjusting the capacity of a varactor with improved waveform distortion and cross-modulation distortion, a method of adjusting the resonance frequency of a resonance circuit, and a method of adjusting the band of a ...  
JP2004235577
To provide a voltage-controlled variable capacitative element which can be manufactured without changing existing manufacturing process or adding any new process, and does not enlarge the circuit size nor require higher voltage, and in w...  
JP2004223708
To provide a structure including a mesh type metal layer flexibly suspended in the air using CMOS process technology and a process to make such structure.A base sacrifice layer 14, a first metal layer 16, a first sacrifice layer 20, a se...  
JP2004214408
To provide a voltage controlled variable capacitor that can be its manufactured without changing the conventional manufacture process, or adding any new process, preventing the circuit from being largely scaled or integrated into a high ...  
JP2004207622
To provide a variable-capacity capacitor and a high-frequency component which are excellent in their power resistances, by giving to the capacitor a capacitor forming region whose shape reduces the concentration of the electric field app...  
JP2004207630
To provide a variable thin film capacitor and a radio frequency component which are small in the change of capacity caused by a radio frequency signal, are large in the change of the capacity caused by a D.C. bias, maintain its component...  
JP2004186625
To provide a method for conditioning capacity which has no use for providing a protective film after conditioning the capacity, and to provide a trimmer capacitor suitable for it.Related to the method for conditioning the capacity of a c...  
JP2004179563
To provide a variable capacity thin-film capacitor which can suppress a capacity variation caused by a radio frequency signal, enhance a capacity variation caused by D.C. bias, decrease the number of thin film layers sequentially coated,...  
JP2004172411
To provide a variable capacitance element wherein parasitic resistance among variable capacitance elements formed on a silicon IC is reduced.The variable capacitance element is provided with a conductive buried electrode layer 102 of dif...  
JP2004172248
To prevent an exfoliation between an internal conductor and a ceramic even when the internal conductor is formed by a thin film forming method and a dielectric layer is thinned.A conductive film is formed on a film by a thin film forming...  
JP2004165596
To provide a composition for a thin film capacitive element, having superior leakage property, improved breakdown voltage and superior surface smoothness, in which temperature coefficient of a dielectric thin film, etc. is controlled at ...  
JP2004165588
To provide a capacity variable capacitor circuit and a capacity variable thin film capacitor element where capacity change due to a high frequency signal is small, and capacity change due to DC bias is large and high frequency components...  
JP2004128361
To provide a charging member which is excellent in adhesiveness between a substrate and a resin layer and whose adhesiveness does not deteriorate even if heat-treated.The charging member comprises a fluororesin layer (1), a heat resistan...  

Matches 351 - 400 out of 836