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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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, ...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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 ...
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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 ...
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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 ...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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JP2009212167 |
To provide a varactor which is adaptive to applications of electronic devices including various electronic devices and communication mobile devices, and to provide an electronic device comprising the varactor and a communication mobile d...
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JP2009212436 |
To provide an electret of which the surface potential is improved, and to provide a method for manufacturing thereof, as well as an electrostatic induction type conversion device which is equipped with the electret.The electret is consti...
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JP2009207344 |
To improve conversion efficiency of a mechanical electric energy conversion device using Electret.In a mechanical electric energy conversion device 10, as an example, an electret holding body 11, to which an electret film 12 is applied, ...
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JP2009182757 |
To remove dirt automatically from an electret film and a measurement electrode plate when measuring the surface voltage of the electret film integrally provided in a fixed electrode.In a surface voltage measurement method of an electret ...
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JP2009177404 |
To measure potential between two poles of an electret condenser which is already assembled, in a nondestructive manner.A method is disclosed for measuring the potential between poles of the electret condenser 300 which is equipped with a...
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JP2009164539 |
To provide an electret structure surely securing the moisture resistance regardless of the thickness of an inorganic electret member, and also to provide its forming method, and an electret type capacitance sensor.A silicon microphone 10...
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JP2009147204 |
To obtain a variable capacitor which can control its capacitance, using a simple structure through easy and simple control.Fixed capacitors C1 to C5 are mounted on a substrate 3 which are connected in parallel. FET 1 to FET 4 are located...
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JP2009142043 |
To control AC power with a low loss and low noise while reducing a size and cost, also reducing the mounting number of components, and saving a space.A variable capacitance element of a variable capacitor C2(1VC) is connected to a fixed ...
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JP2009123999 |
To provide a method for manufacturing a micro condenser microphone, which can achieve an electret process of a dielectric film of a MEMS microphone chip by using inexpensive manufacturing facilities of simple structure and can improve pr...
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JP2009088444 |
To provide an electret having high surface charge density, and to provide an electret capacitor microphone that has the electret.The electret contains a fluorine aromatic resin consisting mainly of a fluorine aromatic polymer. The electr...
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JP2009088100 |
To provide a material for an electret having an excellent adhesion to a metallic base and a high heat resistive charge storage rate, and to provide an electret component using the electret material.A material 10 of an electret includes a...
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JP2009076788 |
To provide a laminated ceramic element capable of precisely detecting temperature, and to provide a mounting structure thereof.The mounting structure has an NTC capacitor 1, an NTC thermistor, a choke coil, a switching circuit, a feedbac...
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JP2009076613 |
To provide an electrostatic operation device capable of suppressing discharge of electric charges induced at an electrode through a spacer (projection portion) while suppressing contact between a first electrode portion and a second elec...
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JP2009021770 |
To provide an EBG element capable of successfully performing leak cutoff to a broadband high-frequency circuit.An antenna 102 on an insulating film 101 of a substrate 100 is connected to a transmission path 104 in the insulating film 101...
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JP2009016613 |
To miniaturize a device and to improve reliability.In the capacitor array incorporating a plurality of variable capacitors C1-C4, a plurality of positive and negative electrodes are alternately stacked for the respective variable capacit...
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JP2009006313 |
To provide a novel electret article comprising a polymer exhibiting an excellent oily mist loading performance, low penetration, and a small pressure drop and a performance enhancing additive.Disclosed is an electret article in the form ...
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JP2008311387 |
To adjust a surface voltage charged on an electret dielectric film to a predetermined voltage by a simple technique.For example, when adjusting an surface voltage charged on an electret dielectric film 23 which is contained on the side o...
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