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Patent Searching and Data


Matches 201 - 250 out of 836

Document Document Title
JP2013165301
To miniaturize a device and to improve reliability.In a capacitor array incorporating a plurality of variable capacitors C1 to C4, a plurality of positive and negative electrodes are alternately stacked for the respective variable capaci...  
JP2013162356
To exert a desired influence on a signal by controlling permittivity or permeability by simple control.A permittivity control circuit 1 includes: a cell region 2A comprising an array of a plurality of cells 2 each having a conductor 3 in...  
JP2013115922
To provide an electrostatic induction type mechanoelectrical transducer which uses an electret and has more excellent output.The electrostatic induction type mechanoelectrical transducer comprises: an electret; a first counter electrode;...  
JP2013004841
To provide a variable capacitance device capable of obtaining three or more capacitance values as well as reducing the size of the device and signal loss, and a drive voltage control circuit.A drive capacitance C1 of a variable capacitan...  
JP2013004707
To provide a piezoelectric film element and a piezoelectric film device which excel in piezoelectric characteristics and have high reliability.In a piezoelectric film element 10 having at least a lower electrode layer 2 and a piezoelectr...  
JP2012243841
To provide a small-sized and low-voltage tunable device using a hexagonal-system barium titanate bulk crystal dielectric material with high dielectric constant.The tunable element, changing an electrostatic capacitance by applying a volt...  
JP2012216880
To provide a capacitative device capable of accurately securing a capacitance value, a variable capacitative device capable of sufficiently securing a capacity variability rate, and a resonance circuit that uses the capacitative devices....  
JP2012169589
To provide a capacitive element capable of accurately securing the value of capacitance, and a variable capacitive element capable of securing an enough capacitance variable rate, as well as a resonance circuit, communication system, wir...  
JP2012156386
To provide a variable capacitor having a large rate of change in dielectric constant with an electric field application and low dielectric loss in a microwave/millimeter wave band.A variable capacitor is a solid solution having a composi...  
JP2012138514
To provide a portable device which is driven sufficiently by a low frequency vibration caused by movement of a human body, can be made lightweight and compact, and exhibits excellent durability while reducing the cost.In the portable dev...  
JP2012125894
To reduce an amount of outgassing remaining in an electronic device after sealing, in the electronic device, and to provide its manufacturing method.The method for manufacturing the electronic device has the steps of: forming an underlyi...  
JP2012120388
To provide an electrostatic induction type conversion device having high mechanical-electrical conversion efficiency.The electrostatic induction type conversion device 1, to convert electrical energy and kinetic energy, comprises: a base...  
JP2012069580
To provide dielectric ceramic for tunable devices which has large variation of a relative dielectric constant for dc bias electric fields, small temperature dependence of the relative dielectric constant, and small dielectric loss in a w...  
JP2012060030
To stably manufacture electrostatic capacitive elements having different capacitance without changing the shape of an electrode and the number of stacking of the electrodes.The electrostatic capacitive element comprises a dielectric laye...  
JP2012009929
To solve the problem that accuracy is low in a capacity value concerning a conventional variable capacity element.A variable capacity element of the present invention includes: a first capacity element C1 connected between a first power ...  
JP2011249722
To provide an electret manufacturing apparatus and an electret manufacturing method capable of manufacturing the homogeneous electrets excellent in maintainability with no deterioration of electrodes.The electret manufacturing apparatus ...  
JP2011211029
To reduce the size of a variable capacitive element using a ferroelectric substance that can attain expansion of a variable region of electrostatic capacity, while at the same time, maintaining a high Q-value.The variable capacitive elem...  
JP2011138544
To provide a variable capacity element having a simpler configuration and excellent resistance to received voltage.The variable capacity element includes a ferroelectric layer made of ferroelectric material, and two electrodes provided t...  
JP2011119482
To further widen the flexibility of design of an internal electrode, a capacitance value, and so on, facilitate manufacturing, and suppress the influence of the parasitic capacitance, in a variable capacitance device configured by connec...  
JP2011101041
To provide a variable capacitance element having a structure such that electric field sensitivity to a control voltage can be set irrelevantly to a breakdown voltage for a signal voltage, and an electronic apparatus.The variable capacita...  
JP2011086924
To provide an energy conversion film having a high ability to convert energy, wherein a porous resin film having a high expansion ratio is obtained by forming a thermoplastic resin stretched film having a specific structure even without ...  
JP2011073960
To provide a method for forming a dielectric thin film capable of expressing high tunability when used for a thin film capacitor and the like, and a thin film capacitor and a tunable device comprising a dielectric thin film obtained by t...  
JP2011060830
To provide a film having permittivity which can be controlled by external stimulation and can be varied by light irradiation, and to provide an electronic device using the same.A thin film transistor 20 includes a glass substrate 21, a g...  
JP2011044705
To rapidly, inexpensively and easily grow an epitaxial thin film on a textured substrate.By using a combustion chemical vapor deposition method (CCVD) or the like, a perovskite type dielectric layer is formed on a textured substrate. A p...  
JP2011040581
To provide a higher performance laminated capacitance element by more reducing an electrode resistance thereof.The capacitance element 10 includes a first electrode 21, a second electrode 22, a third electrode 23, a fourth electrode 24, ...  
JP2011009446
To improve both the reliability of a MEMS element and the characteristics of a MIM element.The MEMS device includes: the MEMS element 10, including a first lower electrode 12 provided on a substrate 1, a first insulator 20 which is provi...  
JP2011003669
To provide a variable capacitor of a small capacity.The variable capacitor includes: a first internal electrode which has a first pull-out part where an opening is formed, parts on both sides of the opening are extended in the long side ...  
JP2010279024
To provide an electret material with superior electric charge retaining properties against heat.The electret material 10 has an electrode plate 1, a semiconductor layer 2 formed on the electrode plate 1, and an electret layer 3 formed on...  
JP2010267883
To provide a device for manufacturing an electret capacitor capable of preventing discharge of charge of an electret in a manufacturing process.This device 100 for manufacturing an electret capacitor includes an ionization radiation irra...  
JP2010268445
To provide a manufacturing method capable of providing an electret material having an excellent charge-retentive property with respect to heat.The method for manufacturing an electret material includes: an irradiation step, a formation s...  
JP2010267884
To provide a method and a device for manufacturing an electret that can shorten a time needed to manufacture the electret.The device 100 for manufacturing the electret includes: an upper chamber 101 into which a helium gas is injected; a...  
JP2010258562
To provide a method for manufacturing an electret material which improves the adhesion between a resin layer to be an electret layer and an electrode plate.The method for manufacturing an electret material includes: applying dispersing l...  
JP2010258402
To stably manufacture a capacitance element that suppresses capacitance variation due to misalignment of electrodes that face each other across a dielectric layer so as to have a desired capacitance.The capacitance element is provided wi...  
JP2010251426
To provide a varactor element having sensitivity of a control electric field between control terminals, the sensitivity capable of being set without reference to breakdown voltage resistance to a signal voltage, and to provide an electro...  
JP2010225611
To provide a low-cost variable capacitor component having a coupling capacitor and variable capacitor with a less layer structure without using a varicap diode.The variable capacitor component includes an insulating substrate 11, a pair ...  
JP2010177278
To provide a variable capacitance element which operates even at high temperature.The variable capacitance element has a diamond semiconductor 2, a first metal electrode 3, a first insulating film 4, and a second metal electrode 5, forme...  
JP2010109035
To provide a variable capacitor which reduces loss in conductivity as a component formed by combining a capacitor for cutting low frequency signal and a variable capacitor.The variable capacitor includes (a) a pair of electrode layers 22...  
JP2010089496
To provide an electret having an electro-conductive layer which minimizes the performance decline of the electret when the electret having the electro-conductive layer as a material for an electricity and electron input-output device is ...  
JP2010021234
To provide a capacitor which reduces the ESR (equivalent series resistance).The capacitor is provided with (a) a pair of electrode layers 15 and 17, (b) a dielectric layer 16 disposed between a pair of the electrode layers 15 and 17 and ...  
JP2010010462
To easily manufacture a porous high-voltage electret.A die plate 200 is a ceramic plate where a plurality of holes 210 are regularly located, and a punch plate 100 is also a ceramic plate having a plurality of punches 110 to be fit with ...  
JP2009295969
To efficiently vary the capacitance of a variable capacitance element using a metal oxide film.The variable capacitance element includes: the metal oxide film having a perovskite structure; a first and a second electrode film having the ...  
JP2009296238
To suppress a change of an electretized amount caused by an ionizer irradiation of a dielectric film which is transduced to an electret and to reduce a change of sensitivity in a microphone.A conductive substance 4 is not grounded to the...  
JP2009290153
To provide a new switched capacitor where a digital switching mechanism and an analog switching mechanism are unified.The switched capacitor includes: a driving arm which has a plate-like elastic body at least one end of which is fixed t...  
JP2009267165
To provide a variable capacitor and an electronic device, having a structure enabling setting of field sensitivity with respect to a control voltage irrespective of a breakdown voltage with respect to a signal voltage.The variable capaci...  
JP2009268122
To provide a tunable matching circuit of low-loss in RF.A ferroelectric material is used in order to produce a low-loss tunable capacitor 32 and inductor 31 for using in a matching circuit 22. The matching circuit 22 is provided with a c...  
JP2009268309
To provide an electrostatic operation device capable of performing operations in an optimal manner.The electrostatic operation device (electrostatic inductive type electric power generating apparatus 100) includes counter electrodes 22 a...  
JP2009260063
To provide a resin foam electret which can convert electric energy into mechanical energy, or convert the mechanical energy into the electric energy, is excellent in charge retention nature at high temperature, and can easily be manufact...  
JP2009253050
To provide an electret excellent in thermal stability of an electric charge and to provide an electrostatic induction type conversion device with the electret.The electret includes a layer comprising organic/inorganic composite materials...  
JP2009246327
To cause a dielectric with edges and holes to be efficiently charged.When a protrusion 110 is cooled down, the protrusion 110 contracts and the diameter of the protrusion 110 becomes smaller than the diameter of a hole 2. Then, after the...  
JP2009212168
To provide a variable-capacitance element wherein a desired capacitance value which corresponds to a write voltage can be freely set and a capacitance value which has been set before is maintained even when there is no write voltage, and...  

Matches 201 - 250 out of 836