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Matches 951 - 1,000 out of 2,400

Document Document Title
JP2002142295A
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...  
JP2002513514A
(-- 57) summary -- the electric device which contains the layer of polyvinylidene fluoride polymer of ferroelectricity at least is offered. When an at least 50 MV/meter electric-field slope is added, it is processed so that the electric ...  
JP2002125297A
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...  
JP3272443B2
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...  
JP2002083737A
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...  
JP2002078091A
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 ...  
JP3263429B2
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...  
JP2002064188A
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 ...  
JP3258377B2
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...  
JP2002505034A
(57) The electric charge which could manufacture electret from summary cyclo オレフィンコ polymer (COC), and was given to it is stability also in a high temperature and high relative humidity for a long period of time. The fall of ...  
JP3254703B2  
JP2002043167A
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...  
JP3253847B2
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) ...  
JP2002033241A
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...  
JP2001338839A
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...  
JP2001326136A
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...  
JP2001298201A
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...  
JP2001267497A
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...  
JP3199947B2
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...  
JP3195827B2
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 ...  
JP2001210549A
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...  
JP2001210550A
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, ...  
JP2001196853A
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 ...  
JP2001118749A
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...  
JP3157853B2  
JP3152228B2
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...  
JP3152229B2
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...  
JP2001085272A
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 ...  
JP2001076969A
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...  
JP2001055520A
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...  
JP2001035747A
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...  
JP3127575B2  
JP3127849B2
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...  
JP2001501032A
(57) In the production method of the container enclosure type capacitor of a summary low self-inductance, connection between a capacitor connection element (1) and bushing (6) is made with a litz wire. The litz wire (2) of a circular sec...  
JP2000348973A
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...  
JP3111916B2
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...  
JP3106389B2  
JP2000304606A
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...  
JP2000269080A
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...  
JP2000269066A
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...  
JP3092539B2  
JP2000216054A
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...  
JP3071789B2  
JP2000509202A
(57) The summary variable capacitor is indicated. This variable capacitor contains the array of the gas discharge tube (7) between the 1st electrode (2), and the 2nd electrode (3) and both electrodes. This capacitor includes the means ma...  
JP2000188233A
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...  
JP2000508475A
A method of forming a capacitor comprises: providing a first metallic thin-film layer; forming a dielectric thin-film layer of an anodized metal on a side of said first metallic layer; providing a second metallic thin-film layer on a sid...  
JP3055791B2  
JP3055713B2  
JP3045419B2
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...  
JP2000138531A
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...  

Matches 951 - 1,000 out of 2,400