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JP3389769B2 |
PURPOSE: To provide a variable capacitance capacitor large in a capacitance change rate and cheap in cost. CONSTITUTION: A reference electrode 4 is arranged and fixed to a bottom surface 5 of a recess part 8 of a substrate 3, and the ref...
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JP3389607B2 |
PURPOSE: To provide a variable capacity capacitor having a high dielectric strength and a high Q value even with a single element. CONSTITUTION: A variable capacity capacitor 1 has a stationary electrode 2 and a movable electrode 3, both...
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JP3387382B2 |
To prevent short-circuiting and a breakdown voltage failure, by forming a stator terminal so that the edge of a cover in a stator is not extended onto an opposing surface. A variable capacitor 21 has a stator 22, a rotor 23, and a cover ...
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JP3387383B2 |
To prevent undesired deformation of a rotor, by selecting the position of a projecting part so that a part touching the rotor of a spring operation part substantially equals the position of a circle track being drawn on the rotor accordi...
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JP2003059761A |
To enlarge the variable region at the time of changing the capacitance and enhance the performance, by changing the interval between electrodes by Lorentz's force. A mobile part 7 is provided via a support 5 and a supporting beam 6 on a ...
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JP2003059762A |
To divide a board separately for each functional part without affecting each functional part when manufacturing a plurality of functional parts on the board. A three-layer structure, where a plurality of functional parts 10 are held betw...
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JP3379402B2 |
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JP3379382B2 |
To stabilize the contacting state of a rotor with a stator and, at the same time, to make the rotating torque of a rotor relatively stronger. In a variable capacitor in which a cover 24 which rotatably holds a rotor 23 against a stator 2...
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JP3379452B2 |
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JP2003031436A |
To solve a problem that reflection or transmission loss of high frequency signal takes place at a joint when a high frequency circuit component is connected with a high frequency circuit.Flange parts 11a and 11b are provided on the subst...
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JP3365079B2 |
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JP3365081B2 |
PURPOSE: To achieve a stabilized maximum voltage and capacitance characteristics by shifting a fixed electrode and a movable electrode comprising tubular electrode plates in the axial direction without inclining on the movable electrode ...
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JP3365077B2 |
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JP3365082B2 |
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JP3365080B2 |
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JP3365078B2 |
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JP2002373829A |
To make variation in electrostatic capacity due to an external factor small and to make the variation range of the electrostatic capacity large. On a glass substrate 10, a surface electrode 18 is formed and a movable electrode 17 is arra...
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JP3355754B2 |
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JP3354801B2 |
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JP3351336B2 |
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JP3351180B2 |
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JP3347122B2 |
Devices for use in highly integrated radio frequency transceivers utilize micro-electro-mechanical systems, or wobble motors, to form superior switches and to select and vary components that determine different frequencies of operation. ...
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JP2002305430A |
To provide a variable condenser capable of reducing cost by simplifying a receiving circuit, without scarifying the operability of a tuning operation in an FM band.A resonance circuit 12 for oscillation is constituted of a variable conde...
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JP3331970B2 |
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JP2002217060A |
To provide a capacitor having a small amount of change in capacitance for the capacitor manufactured by the MEMS technique.This microcomponent has a capacitive component. The capacitive component is composed by the continuous coupling of...
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JP2002208538A |
To provide a liquid variable capacitor that has increased volumetric density, withstanding voltage, and reliability than the conventional variable capacitor and can save costs.The liquid variable capacitor 26 includes a case for includin...
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JP2002184641A |
To provide highly reliable surface-mounting components that can be used for various kinds of electronic equipment.Reliability of the surface-mounting components is improved by collecting flux which is diffused at the mounting of the comp...
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JP3295947B2 |
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JP2002175936A |
To enable a variable capacitor, which is used for various electronic apparatuses, to be kept stable in characteristics.A through-hole 2a, provided to a rotor where a shaft 3, is made to penetrate through is formed into nearly a D shape, ...
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JP3289196B2 |
PURPOSE: To obtain the high sensitivity and low linearity without increasing the additional cost or complexity by suitably selecting the thickness of the diaphragm of a converter and the separate distance between a clamped diaphragm and ...
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JP2002141249A |
To provide a variable capacitor whose stability is high by a method where a driver plate and an electrode plate, which constitute a rotor are formed individually and they are integrated, and to provide its manufacturing method.The rotor ...
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JP2002107245A |
To provide a force detector not changing output of a joystick in turning on a switch mechanism and preventing the switch mechanism from being turned on in operation of the joystick.An operation button 2A arranged in a base board 1 can be...
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JP2002083736A |
To provide a variable capacitor, whose minimum capacitance can be reduced by devising the shape of a rotor electrode and a stator electrode.The variable capacitor is provided with a stator 20, having the stator electrode 21 and a dielect...
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JP2002075786A |
To constitute a variable capacitor by mounting lead wires on a regulating pattern or its vicinity because a variable capacitor, using a conductor projected from a printed board having a complicated cubic structure to disturb flattening o...
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JP2002075787A |
To improve mass productivity of a trimmer capacitor, in the capacitor used for various types of electronic equipment or the like.The shape of a hot terminal 5 of the trimmer capacitor is constituted to provide a contactor 5c between an e...
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JP3264075B2 |
PURPOSE: To obtain a vacuum capacitor in which the constitution of an electrode is improved, which reduces the number of production processes and whose cost are reduced. CONSTITUTION: A guide member 2 is formed in the center of an electr...
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JP3264004B2 |
PURPOSE: To materialize a vacuum capacitor of such structure that it fulfills the elongation of life and the improvement of current application capacity at the same time by constituting bellows out of stainless steel plated with copper m...
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JP3264005B2 |
PURPOSE: To materialize a vacuum capacitor or such structure that it raises the capacity of supplying a high frequency current by plating the surface of phosphoric bronze bellows with copper material or silver material higher in conducti...
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JP3264006B2 |
PURPOSE: To materialize a vacuum capacitor of such structure that it raises the capacity of a high frequency current by using beryllium copper for the material of bellows, and besides, plating the section brazed with the beryllium copper...
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JP3264003B2 |
PURPOSE: To have the structure for stabilizing a withstand voltage characteristic so as to raise the allowable maximum current value in a vacuum capacitor by arranging getters on a vacuum inner wall near the central axis line of the fixe...
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JP3263992B2 |
PURPOSE: To obtain a vacuum capacitor in which capacitance can be regulated at high speed. CONSTITUTION: At least a fixed electrode 15 and a movable electrode 16, having electrode planes crossing each other, are placed in a vacuum contai...
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JP3260780B2 |
PURPOSE: To provide a manufacturing method for trimmer capacitors which prevents a stator electrode from sinking in manufacturing a stator substrate. CONSTITUTION: In manufacturing a trimmer capacitor with a dielectric rotor 2 and in tur...
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JP2002052500A |
To provide a method for manufacturing an electronic micro component with a fixed plate and a deformable film facing each other under a room temperature.This manufacturing method is characterized in having a stage of depositing a first me...
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JP2002504268A |
(57) [Summary] Devices and methods for manufacturing capacitors are disclosed, including the step of covering the first capacitor plate element (12) with a spacer material (30). The first capacitor plate element (12) and the spacer mater...
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JP2002033240A |
To automatically and exactly detect the origin of a driving part.An adjusting nut 13 is provided with a slit 13d and is detected through this slit 13d by a photosensor 25, that a screw shaft 12 or adjusting screw 14 is positioned farthes...
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JP3245930B2 |
PURPOSE: To unify and simplify steps of manufacturing by forming an exhaust hole at a stationary conductor and connecting the connecting parts in twice steps of brazing. CONSTITUTION: An exhaust hole 1 is first formed at a stationary con...
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JP3245923B2 |
PURPOSE: To improve the yield by forming a structure for alleviating influence of an irregularity in a brazing temperature in a vacuum capacitor having brazing positions. CONSTITUTION: When a connecting position of a bearing 1 is brazed ...
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JP3245969B2 |
PURPOSE: To facilitate the accurate positioning between a fixed electrode and a mobile electrode, which is performed at junction of each component of a vacuum capacitor. CONSTITUTION: A hole 1 is made at nearly center of the fixed conduc...
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JP3245971B2 |
PURPOSE: To minimize the clearance between a bearing internal surface and a movable lead-part surface and prevent a withstand voltage value when adjusting electrostatic capacity from being reduced effectively by circulating air between a...
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JP3242389B2 |
To provide a temperature adaptative capacitor block that can be used for a temperature compensated crystal oscillator and to provide a temperature compensated crystal oscillator, using the block. A temperature adaptative capacitor block ...
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