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Patent Searching and Data


Matches 801 - 850 out of 2,401

Document Document Title
JP2006159356A
To obtain a piezoelectric driving type micro electro mechanism system (MEMS) device capable of obtaining a desired characteristic under a condition where acceleration is applied.This device comprises a supporting part 6 installed on a su...  
JP2006128302A
To provide a variable capacitance capacitor easy in how to control applied voltage and excellent in characteristics such as high withstand electric power and low distortion.The variable capacitance capacitor includes a variable capacitan...  
JP2006120765A
To achieve a varactor having the desired dielectric characteristic without change of dielectric material.A (Ba, Sr)TiO3 dielectric material film is formed on (110) alignment LiTaO3 single crystal substrate with the chemical solution meth...  
JP2006513971A
Chemical-formula s [L] *x [P] y [M] z [N] The ferroelectric ceramic compound which has composition of p [T], its production method, a ferroelectric single crystal, and its production method are offered. The ferroelectric ceramics by the ...  
JP2006109512A
To provide a tunable ferroelectric multiplexer for use in CDMA communications devices.Tunable ferroelectric capacitors are used to tune the resonance frequencies of several resonators used in a multiplexer and to tune the frequency respo...  
JP2006108502A
To provide a micro capacitor capable of changing capacity by simple constitution, and securing and stabilizing the capacity.The micro capacitor is provided with capacitors 11, 12 constituting a plurality of capacitors C, a dielectric fil...  
JP3767543B2
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 formin...  
JP2006093322A
To provide a variable capacitance capacitor in which the change of a capacity by an applied voltage is large, a Q value is high and temperature characteristics are good.In the variable capacitance capacitor, a first capacitor C1 and a va...  
JP2006093323A
To provide a variable capacitance capacitor in which the change of a capacity by an applied voltage is large, a Q value is high and temperature characteristics are good.In the variable capacitance capacitor, a first capacitor C1, an indu...  
JP2006093680A
To provide a variable capacitor which has a high Q value even in a high-frequency region and has a small rate of capacitance change due to a high-frequency signal while increasing its rate of capacitance change due to DC bias voltage.The...  
JP2006066647A
To provide a variable capacitor, small in a capacity changing rate by high-frequency signal while enlarging the capacity changing rate by a DC bias.The variable capacitor is provided with a plurality of variable capacity elements C1-C5 c...  
JPWO2004038743A1
本発明は、(a)チタン酸バリウムからなる セラミック原料を含むセラミックグリーンシ ートと内部電極とを交互に積層して積層体を 形成する工程、(b)前記積層体を焼成...  
JP2006049840A
To provide a variable resonance circuit which exhibits a low degree of waveform distortion or intermodulation distortion, a high electric power resistance and a low loss.Several variable capacitors C1-C4 each using a thin-film dielectric...  
JP2006019737A
To provide a MEMS variable capacitor using an interdigitated three-dimensional comb actuation electrode indicating large capacitance variations and tuning ranges.A three-dimensional MEMS variable capacitor is described wherein movable co...  
JP3735687B2
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...  
JP2006012990A
To provide a capacity device which is free of damage capable of correctly adjusting capacity repeatedly, and can be manufactured at a low cost.In the capacity device 100 comprising dielectrics 4, 12, a first electrode 20, and a second el...  
JP3733416B2
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 ...  
JP2006500785A
The strong 誘電 capacitor 22 which the capacitor equipment 20 by which temperature compensating was carried out has ferroelectric property, and uses a ferroelectric material like the ferroelectric material of a metal oxide, The in-seri...  
JP2006003301A
To provide an oxide thin film for a dielectric bolometer, its manufacturing method, and an infrared solid state imaging device using the oxide thin film for the dielectric bolometer.An infrared detection film changing a dielectric consta...  
JP2005340470A
To provide a variable capacitor, a circuit module and a communication system which are easy to handle without being influenced by the polarity of applied voltage by precisely obtaining a desired characteristic.In this variable capacitor,...  
JP2005340587A
To miniaturize a driving unit for regulation and prevent the error of an electrostatic capacity caused by the abrasion or the deformation of a screwed part for a rotary unit by suppressing the increase of rotating torque upon regulating ...  
JP2005313276A
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...  
JP2005315661A
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...  
JP2005308745A
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...  
JP2005286658A
To provide a semiconductor device including a thin film bulk wave element whose resonance frequency is adjustable, which can be made more small-sized.The semiconductor device 11 is provided with: the thin film bulk wave element 10; a res...  
JP2005262497A
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...  
JP2005260208A
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 ...  
JPWO2005086534A
Electret capacitor microphone unit 2 comprising:Timbal 30 which covered electret-ized silicon oxide film 7 with silicon nitride films 8 and 9, and laid and formed it on vibrating electrode 5 in order to improve moisture-proof 及び heat...  
JP2005243965A
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...  
JP3692090B2
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...  
JP2005236391A
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...  
JP2005236389A
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...  
JP2005236390A
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...  
JP2005217852A
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 ...  
JP2005191467A
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...  
JP2005191208A
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...  
JP2005183437A
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...  
JP2005184270A
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...  
JP2005175365A
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 ...  
JPWO2005052966A
It has a beam of both 持ち state and provides a displacement element in an initial state which was excellent in the controllability of a position absolutely. While arranging a thickness grant member (27) in the central part (26) of the...  
JP2005150466A
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...  
JP2005140779A
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...  
JPWO2005050680A
Silicon nitride film 103 and silicon nitride film 106 are formed so that electrified silicon oxide film 105 used as electret may be covered.  
JP2005136607A
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...  
JP2005136074A
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...  
JP2005108887A
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...  
JP3638160B2
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...  
JP2005079168A
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...  
JP2005508096A
A capacitance element has two or more voltage variable capacitors (varactor). These varactors are constituted so that it may be connected in series about the AC signal impressed and may be connected in parallel about the DC bias voltage ...  
JP2005064437A
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...  

Matches 801 - 850 out of 2,401