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Matches 451 - 500 out of 850

Document Document Title
JP2002142295
To provide an electret capacitor microphone that can be reduced sufficiently in thickness.This capacitor microphone is constituted in such a way that a capacitor section C composed of a diaphragm 26 and a back pole plate 18 which are fac...  
JP2002125297
To provide a laminated sheet for an electret in which the thickness of an electret layer is set so as to be 12 μm or less without generating any film failure such as pin holes.A thermoplastic resin film which is able to constitute an el...  
JP2002083737
To provide a nonlinear dielectric element, in which a nonlinear characteristic in electric field-charge is difficult to be deteriorated and a large pulse voltage can be obtained surely.The nonlinear dielectric element is provided with an...  
JP2002078091
To provide an electret condenser microphone which can be made thin.The electret condenser microphone 100 is provided with an electrode plate 110 where a film 111 made of an electret material is formed on one side 110a and a through-hole ...  
JP3286998
PURPOSE: To provide an antibacterial electret material which possesses both an antibacterial characteristic and the characteristic of an electret, and is also stabilized in electric charge. CONSTITUTION: An antibacterial electret materia...  
JP2002064188
To provide an integrated circuit storage device which comprises a high-quality ferroelectrics capacitor of a flat shape.Firstly a lower-part electrode is formed, a layer comprising Pb (ZrXTi1-X)O3 (where, X=0.0-0.92) is formed, and then ...  
JP2002043167
To provide a chip-type electronic component, having a glass coat layer resistant to crackings and a ceramic member whose insulation resistance is hard to degrade, and to provide a method of manufacturing the same.A laminate capacitor has...  
JP2002033241
To provide a silicon oxide film electret, which is improved in moisture resistance characteristics and is immune to uses as an element for reflow, and to provide an electret capacitor microphone.For this silicon oxide film electret, a si...  
JP3272443
PURPOSE: To provide the device enabling to again charge by a simple means, when the surface charge density of a cap, etc., produced from an electret fiber sheet is lowered. CONSTITUTION: The device has a heating chamber 3 whose bottom su...  
JP3263429
PURPOSE: To provide a semiconductor device which suitably operates as an electronic memory of a computer and its manufacture, and to shorten its access time. CONSTITUTION: A capacitor 2 which consists of a lower electrode 11, an oxygen c...  
JP2001338839
To provide a variable capacitance capacitor the capacitance of which changes at a large changing rate, is sufficiently small in loss even under a high-frequency condition, and causes a linear frequency change against an impressed voltage...  
JP3258377
PURPOSE: To obtain composite material for electret which is suitably used for an electrostatic type electroacoustic transducer such as a microphone and a head phone. CONSTITUTION: In the manufacturing method of composite material for ele...  
JP3253847
To provide a process for producing an electret by simultaneously applying charges having opposite polarities to both sides of a dielectric material and be treated and provide a production apparatus. This production process comprises (1) ...  
JP2001326136
To provide conductive paste, which is used for the formation of the terminal electrodes of a nonlinear capacitor exhibiting satisfactory nonlinear characteristics, and to provide a nonlinear capacitor using the paste.The conductive paste...  
JP2001298201
To provide a semiconductor control circuit element which can control an electric circuit at a high speed, by quickly and remarkably changing only a part of the resistance of the element subjected to light or electric-field application, a...  
JP2001267497
To solve the problem where a lower power source voltage of a portable electronic apparatus causes narrower voltage width applicable to a variable capacity element, resulting in insufficient capacity change coefficient.With an MOS type ca...  
JP2001210550
To provide a variable voltage capacitor having improved C-V linearity.This variable voltage capacitor contains a support board 41 having a doped layer 42, which has a insulating layer 45 on it, first, second and third capacitors 47, 49, ...  
JP2001210549
To provide an electlet having high electric charge density on the surface under normal or high temperature and with superior holding ability of the electric charge density, especially to provide an electlet with superior collecting abili...  
JP2001196853
To provide an integrated voltage controlled oscillator to be band- switched. The source-drain capacitor of an FET device is used by mutually electrically connecting a source and drain so as to form a two-terminal capacitive device which ...  
JP3199947
PURPOSE: To provide the title polymer electret obtained by compounding a charge regulator used in electrophotographic toner with a polymer and excellent in charge stability, having markedly long charge life and improved in the homogeneit...  
JP3195827
PURPOSE: To form a ferroelectric layer by making an organic solvent solution contain Bi and Ti in the shape of metal organic or inorganic compounds in a stoichiometric ratio, bringinging the uniformly mixed organic solvent solution into ...  
JP2001118749
To provide a method and a device capable of forming a sufficient electret in a short time. In this electret making method, in the state of clamping a porous body to be processed with a pair of dielectrics whose total capacitance is 2×10...  
JP2001085272
To obtain a variable capacitor which is low in loss and excellent in frequency characteristics by a method wherein a first and a second electrode are arranged confronting each other as being insulated from each other, and an organic P-N ...  
JP2001076969
To enlarge frequency variable width by connecting a variable capacity element where a comb-type electrode is formed on a ferroelectric thin film or an antiferroelectric thin film where accumulated charge quantity shows hysteresis with re...  
JP2001055520
To obtain a copper phthalocyanine composition that is used as a colorant having a low intrinsic electrostatic effect and improved in transparency, heat stability, and dispersibility, which composition comprises a specified copper phthalo...  
JP2001035747
To discourage crackings caused by difference in contraction behavior between an internal electrode and a ceramic layer, inside a laminate at baking. A laminated body 3, where a ceramic layer 7 and internal electrodes 5 and 6 are laminate...  
JP3152229
To easily test a switching control circuit of a capacitor array in a temperature compensation circuit for a crystal oscillator. Each array is provided with transfer gates 91-96 that are switched on/off with the output of a linear control...  
JP3152228
To smoothly compensate the temperature of a quartz resonator even near an inflection point correspondingly to the temperature characteristic of the resonator which draws quadratic and cubic curves. The temperature of a quartz resonator i...  
JP2000348973
To realize a ceramic passive device of low cost by a method wherein the dielectric body of the ceramic passive device is formed of specific ferroelectric ceramic material having a relative permittivity depending on voltage.A ceramic pass...  
JP3127849
To improve safety by dissolving organometallic compds. in a specified solvent, coating the top of a substrate with the resultant soln. and forming a thin oxide film by heat treatment. Two or more of organometallic compds. separately cont...  
JP2000304606
To provide an infrared radiation detecting device at a low coat by solving a problem that coat reduction and miniaturization are impossible because an impedance conversion circuit of the conventional infrared radiation is composed of a h...  
JP2000269080
To provide a method for manufacturing a polymeric electret which can sufficiently orient dipoles, without causing dielectric breakdown and also can make a large-area film into a uniform electret. In this method for manufacturing a polyme...  
JP2000269066
To relax stresses generated during burning of a laminate for causing less cracks and delaminations within the laminated body during the burning. This multilayer ceramic capacitor has a laminate 3, having ceramic layers 7 and internal ele...  
JP3111916
To enable a rotor to be adhered to a stator stably in a variable capacitor where a stator for forming a stator electrode and a rotor for forming a rotor electrode are accommodated in the recessed part of a case and a recessed part is clo...  
JP2000216054
To provide a mineral battery element capable of taking out energy in a substantially constant way and provide a mineral battery. A mineral battery element 3 is made of sintered powder of polarity crystal substance. A mineral battery 10 i...  
JP2000188233
To form a capacitance-adjusting type capacitor, having a high Q-value characteristic, and permit adjusting capacitance through etching work using a laser light, by using a polymer film as dielectric material. A lower electrode 2 is forme...  
JP2000138531
To smoothly compensate the temperature of a quartz resonator even near an inflection point correspondingly to the temperature characteristic of the resonator which draws quadratic and cubic curves. The temperature of a quartz resonator i...  
JP2000134036
To easily test a switching control circuit of a capacitor array in a temperature compensation circuit for a crystal oscillator. Each array is provided with transfer gates 91-96 that are switched on/off with the output of a linear control...  
JP2000114101
To provide a dielectric thin film element which can be easily formed on a ceramic substrate at a low cost and is superior in such characteristics as small size and large capacity.At least a lower electrode 2, a dielectric thin film 3 and...  
JP3045419
PURPOSE: To enable a capacitor different in coercive resistant electric field of a ferroelectric film or capacity to be made in a short time according to the request of a user, and enable even the ferroelectric film capacitor high in coe...  
JP2000077267
To lower permittivity by having a tungsten bronze crystal structure represented by a specific formula and varying the permittivity by external field. The dielectric material is represented by a formula (AX, B1-x)Nb2 O6 (A is an element s...  
JP2000066453
To rapidly capture electric charges, to keep them constant and to obtain high heat stability by using a specified metallic carboxylate and a specified metallic sulfonate as electric charge improvers in a powdery coating material and in a...  
JP3034181
PURPOSE: To improve the fatigue phenomena of a PZT thin film and improve its durability by doping its PZT ferroelectric with a donor element and an acceptor element simultaneously. CONSTITUTION: A PZT (PbZr1-xTixO3) ferroelectric is dope...  
JP3021165
PURPOSE: To prevent reaction of an electrode with an Si material and improve adhesion with the material by employing perovskite-type oxide having conductivity for the electrode in a capacitor composed of an electrode and a perovskite- ty...  
JP11317324
To change the reactance by impressing an AC voltage to an electrode. Two electrode plates 2 and 3 face to each other. The two electrode plates 2 and 3 are provided with dielectric layers on the inside faces. A core 4 is provided with a t...  
JP11281477
To hold parallelism of a filter and a pyroelectric element, to expand an angle of visibility, and to improve detecting accuracy by forming both element base stands as a similar structure having air vents for communicating the inside/outs...  
JP11274000
To obtain a non-linear dielectric element with high reliability in which mechanical strength is excellent, a large pulse voltage can be generated, and the deterioration in the mechanical strength or the generated pulse voltage due to lap...  
JP11265836
To provide a ferroelectric thin-film capacitor which has sufficient remanence and can be driven with a lower operating voltage. A ferroelectric thin-film capacitor 1 is provided with a substrate 2, a lower electrode 3 formed on the subst...  
JP11260667
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...  
JP11261015
To integrate a variable capacitor in a semiconductor device through the use of regular manufacturing technology and substance, by constructing a stacked constitution body having a dielectric membrane which can be moved in fixed plates th...  

Matches 451 - 500 out of 850