| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 361287000 | Mechanically variable | 38 |
| 20090002915 | Micro-electromechanical voltage tunable capacitor and and filter devices - Disclosed are one-port and two-port voltage-tunable micro-electromechanical capacitors, switches, and filter devices. High aspect-ratio metal micromachining is used to implement very high quality factor (Q) tunable and fixed capacitors, fixed inductors, and low insertion loss tunable and fixed bandpass LC filters. The tunable capacitors can move in the plane of the substrate by the application of DC voltages and achieve greater than 100% of tuning. A combination of low-loss substrate and highest conductivity metal is used to achieve record high Q and low insertion loss at radio frequencies. The disclosed tunable capacitor structure can also be used as a micromechanical switch. | 01-01-2009 |
| 20090323252 | Variable capacitor, variable capacitor apparatus, high frequency circuit filter, and high frequency circuit - A variable capacitor including a first electrode part, which is provided at a fixed part that includes a substrate, and a movable part, which has a second electrode part forming the capacity of said variable capacitor between itself and the first electrode part, and the movable part is displaced in response to a first drive signal to selectively go into an opposing status, in which the second electrode part opposes the first electrode part, and a non-opposing status, in which the second electrode part essentially does not oppose the first electrode part. This variable capacitor is able to obtain at least a two-value capacity in which the mutual ratio is large without specially requiring another capacitor or a switch, and it is able to obtain the desired capacity variation range by combining a plurality of capacitors. | 12-31-2009 |
| 20110096462 | VARIABLE CAPACITIVE ELEMENT, VARIABLE CAPACITIVE DEVICE, AND METHOD FOR DRIVING THE VARIABLE CAPACITIVE ELEMENT - A variable capacitive element includes a first fixed electrode and a second fixed electrode that are insulated from each other, a movable electrode arranged to face the first fixed electrode and the second fixed electrode, a dielectric layer provided between the movable electrode and the first fixed electrode as well as the second fixed electrode, a first wiring part for applying a first driving voltage to the first fixed electrode with reference to a potential of the movable electrode, and a second wiring part for applying a second driving voltage to the second fixed electrode with reference to the potential of the movable electrode, the second driving voltage having a polarity different from a polarity of the first driving voltage. | 04-28-2011 |
| 20160071652 | ACTUATING ELEMENT AND ELECTRONIC DOMESTIC APPLIANCE HAVING AT LEAST ONE ACTUATING ELEMENT - An actuating element for an electronic domestic appliance has an electrically non-conductive carrier which defines at least one preferably substantially cylindrical detection portion. A plurality of electrically conductive measuring electrodes is spaced apart from one another along the detection portion of the carrier. A preferably substantially annular operating element is disposed at a first predefined distance from the measuring electrodes and is movable relative thereto. The operating element additionally has at least one sensor portion which is at least partially electrically conductive and is disposed at a second predefined distance from the measuring electrodes. The second predefined distance is different from the first predefined distance, so that a movement of the sensor portion and therefore of the operating element relative to the configuration of measuring electrodes can be detected. | 03-10-2016 |
| 361288000 | Push button | 1 |
| 20110211293 | VARIABLE CAPACITOR - A variable capacitor includes: a dielectric sheet disposed on a substrate and covering an electrode pattern on the substrate; a resilient conductive supporting seat mounted on the dielectric sheet for supporting an insulating operating cap on a central portion thereof; a conductive cover body covering the conductive supporting seat and permitting the operating cap to extend outward; and a biasing member for biasing the central portion of the conductive supporting seat to move away from the substrate. The cover body is connected electrically to the conductive supporting seat and a conductive contact on the substrate. When the operating cap is depressed, the operating cap forces a contact portion of the conductive supporting seat to deform such that a surface area of the deformed contact portion that contacts the dielectric sheet is increased, thereby changing the capacitance between the conductive supporting seat and the electrode pattern. | 09-01-2011 |
| 361289000 | Motor driven | 1 |
| 20140285945 | TUNABLE CAPACITOR - A tunable capacitor includes a first electrode and a second electrode, each being formed of a conductive material. The tunable capacitor further includes a third electrode between the first electrode and the second electrode, and a dielectric material interposed between the first electrode and the third electrode, and between the second electrode and the third electrode. The third electrode is movable relative to the first electrode and the second electrode by a stepper motor, to adjust and tune a capacitance of the tunable capacitor. | 09-25-2014 |
| 361290000 | By varying distance between electrodes | 25 |
| 20080297974 | Method of Manufacturing Capacitive Elements for a Capacitive Device - A method of manufacturing capacitive elements for a capacitive device which comprises one or more layers is provided. At least one layer is etched from a first surface to a second surface thereof to form two sections of the layer, such that the sections are movable relative to one another, and such that a wall extending from the first surface to the second surface is formed on each of the two sections, the walls defining a gap therebetween. An etching step forms multiple recesses in each wall such that multiple capacitive elements are defined between adjacent recesses, the capacitive elements of one wall being offset from those of the other wall when the sections are stationary with respect to one another. A corresponding capacitive device is also provided. | 12-04-2008 |
| 20090135541 | ACTUATOR AND ELECTRONIC CIRCUIT BASED THEREON - An actuator includes a substrate, a fixed electrode provided on a major surface of the substrate, a movable beam opposed to the major surface and held above the substrate with a gap thereto, and a dielectric film provided between the fixed electrode and the movable beam. The dielectric film is made of aluminum nitride oriented along c-axis with an orientation full width at half maximum of 4.6 degrees or less. | 05-28-2009 |
| 20090201623 | CAPACITIVE RF-MEMS DEVICE WITH INTEGRATED DECOUPLING CAPACITOR - The present invention provides a capacitive RF-MEMS device comprising a vertically integrated decoupling capacitor ( | 08-13-2009 |
| 20090231778 | HIGH FREQUENCY ELECTRICAL ELEMENT - A high frequency MEMS | 09-17-2009 |
| 20090268367 | VARIABLE CAPACITOR, RESONATOR AND MODULATOR - Provided is a variable capacitance element comprising a plurality of single capacitance elements that each include (i) a fixed electrode provided on a surface of a substrate, (ii) a floating electrode provided to be separate from the fixed electrode and facing the fixed electrode, and (iii) an actuator that moves the floating electrode closer to or farther from the fixed electrode; and a floating electrode driving section that supplies the actuators with drive power to move the floating electrodes, such that a combined capacitance of the plurality of single capacitance elements becomes a prescribed capacitance. | 10-29-2009 |
| 20090296308 | MEMS VARIABLE CAPACITOR - A MEMS variable capacitor includes: a first connection beam having one end fixed to a substrate; a first actuation beam connected to the first connection beam; a second actuation beam connected to the first actuation beam and extending in a reverse direction; a second connection beam having one end fixed to the substrate; a third actuation beam connected to the second connection beam; a fourth actuation beam connected to the third actuation beam and extending in a reverse direction; a movable electrode provided between the second and fourth actuation beams; and a fixed electrode provided on the substrate opposed to the movable electrode. The first to fourth actuation beams have a piezoelectric film sandwiched between a lower electrode and an upper electrode, the first and third actuation beams are placed on a line, the second and fourth actuation beams are placed on a line, and the first and second actuation beams and the third and fourth actuation beams are placed symmetrically about a line. | 12-03-2009 |
| 20090296309 | MICRO-ELECTRO-MECHANICAL SYSTEM (MEMS) VARIABLE CAPACITORS AND ACTUATION COMPONENTS AND RELATED METHODS - Micro-electro-mechanical system (MEMS) variable capacitors and actuation components and related methods are provided. A MEMS variable capacitor can include first and second feed lines extending substantially parallel to one another. Further, MEMS variable capacitors can include first and second capacitive plates being spaced apart from the first and second feed lines. The first and second capacitive plates can be separately movable with respect to at least one of the first and second feed lines for varying the capacitance between the first and second feed lines over a predetermined capacitance range. | 12-03-2009 |
| 20100214716 | MEMS CAPACITIVE DEVICE AND METHOD OF FORMING SAME - A MEMS capacitive device ( | 08-26-2010 |
| 20100315757 | ELECTRICAL COMPONENT - An electrical component capable of performing hot switching at low power consumption is disclosed. The electrical component has a first electrical component and a second electrical component connected in parallel to the first electrical component. The first electrical component includes a first electrode and a second electrode facing the first electrode with a space in between, the second electrode is moved by a first actuator portion. The second electrical component includes a third electrode and a fourth electrode facing the third electrode with a space in between, the fourth electrode is moved by a second actuator portion having a stiffness higher than a stiffness of the first actuator portion, the second electrical component has an impedance becoming higher or lower than an impedance of the first electrical component depending on a moving state of the fourth electrode. | 12-16-2010 |
| 20110007448 | VARIABLE CAPACITY ELEMENT - A variable capacity element has a substrate, a pair of capacitor electrodes, a pair of driver electrodes, and a pair of capacitor wirings why one of the capacitor electrodes is movable by applying a voltage between the driver electrodes. A pair of driver electrodes are connected to the pair of capacitor electrodes, being insulated from the capacitor electrodes. A pair of capacitor wiring extend in parallel each other from connecting portions with the pairs of the capacitor electrodes, being electrically connected with the capacitor electrodes. | 01-13-2011 |
| 20120314335 | SYSTEMS AND METHODS FOR CURRENT DENSITY OPTIMIZATION IN CMOS-INTEGRATED MEMS CAPACITIVE DEVICES - The present subject matter relates to the use of current splitting and routing techniques to distribute current uniformly among the various layers of a device to achieve a high Q-factor. Such current splitting can allow the use of relatively narrow interconnects and feeds while maintaining a high Q. Specifically, for example a micro-electromechanical systems (MEMS) device can comprise a metal layer comprising a first portion and a second portion that is electrically separated from the first portion. A first terminus can be independently connected to each of the first portion and the second portion of the metal layer, wherein the first portion defines a first path between the metal layer and the first terminus, and the second portion defines a second path between the metal layer and the first terminus. | 12-13-2012 |
| 20130335878 | MEMS LIFETIME ENHANCEMENT - The present invention generally relates to methods for increasing the lifetime of MEMS devices by reducing the number of movements of a switching element in the MEMS device. Rather than returning to a ground state between cycles, the switching element can remain in the same state if both cycles necessitate the same capacitance. For example, if in both a first and second cycle, the switching element of the MEMS device is in a state of high capacitance the switching element can remain in place between the first and second cycle rather than move to the ground state. Even if the polarity of the capacitance is different in successive cycles, the switching element can remain in place and the polarity can be switched. Because the switching element remains in place between cycles, the switching element, while having the same finite number of movements, should have a longer lifetime. | 12-19-2013 |
| 20130342954 | ELECTRONIC DEVICE HAVING VARIABLE CAPACITANCE ELEMENT AND MANUFACTURE METHOD THEREOF - An electronic device having a variable capacitance element, includes a support substrate providing physical support, a pair of anchors formed on the support substrate, and having support portions in a direction perpendicular to a surface of the substrate, a movable electrode supported by the support portions of the pair of anchors, having opposing first and second side surfaces constituting electrode surfaces, and at least partially capable of elastic deformation, a first fixed electrode supported above the support substrate, and having a first electrode surface opposing to the first side surface of the movable electrode, and a second fixed electrode supported above the support substrate, and having a second electrode surface opposing to the second side surface of the movable electrode. | 12-26-2013 |
| 20140055908 | VARIABLE CAPACITOR - A variable capacitor includes a plurality of variable capacitor elements connected in parallel with one another, the variable capacitor elements each including a fixed electrode and a movable electrode facing each other, a beam supporting the movable electrode displaceably, and a drive electrode supplied with a drive voltage to change spacing between the fixed electrode and the movable electrode. The variable capacitor further includes a drive control unit configured to sequentially apply an AC drive voltage to the drive electrodes of the variable capacitor elements with a predetermined phase difference for each element. The sum of capacitances of the variable capacitor elements is an output capacitance. | 02-27-2014 |
| 20140146435 | IN-PLANE MEMS VARACTOR - This disclosure provides systems, methods and apparatus for providing an in-plane electromechanical systems (EMS) varactor. In one aspect, the in-plane EMS varactor may include in-plane relative translation between a second portion and a first portion. Such translation may cause a change in a gap or overlap between first electrodes that remain fixed with respect to the first portion and second electrodes that remain fixed with respect to the second portion that may cause a change in capacitance between the first and second electrodes. In some implementations, the configuration of the second portion and the first portion may be either of two mechanically bi-stable states. | 05-29-2014 |
| 20140268482 | ACTUATOR PLATE PARTITIONING AND CONTROL DEVICES AND METHODS - Devices and methods of operating partitioned actuator plates to obtain a desirable shape of a movable component of a micro-electro-mechanical system (MEMS) device. The subject matter described herein can in some embodiments include a micro-electro-mechanical system (MEMS) device including a plurality of actuation electrodes attached to a first surface, where each of the one or more actuation electrode being independently controllable, and a movable component spaced apart from the first surface and movable with respect to the first surface. Where the movable component further includes one or more movable actuation electrodes spaced apart from the plurality of fixed actuation electrodes. | 09-18-2014 |
| 20140307361 | VARACTOR AND VARACTOR SYSTEM - The invention relates to a varactor with an actuator, wherein the first actuator surface ( | 10-16-2014 |
| 20140347781 | Capacitor, Mems Device, and Method of Manufacturing the Mems Device - Disclosed is a capacitor. The capacitor includes a plurality of capacitor units connected to each other in parallel. The capacitor unit includes a first capacitor, a second capacitor connected to the first capacitor in parallel, and a switch selectively connected to the first capacitor or the second capacitor. | 11-27-2014 |
| 20150022939 | CAPACITOR AND METHOD OF FABRICATING THE SAME - Disclosed are a capacitor and a method of fabricating the same. The capacitor includes a first electrode; a second electrode spaced apart from the first electrode while facing the first electrode; a driving member connected to the second electrode to move the second electrode relative to the first electrode; and an insulating connection member between the driving member and the second electrode. | 01-22-2015 |
| 20150092315 | TUNABLE MEMS CAPACITOR - A capacitive MEMS structure comprising first and second opposing capacitor electrode arrangements, wherein at least one of the electrode arrangements is movable, and a dielectric material located adjacent to the second electrode arrangement, wherein the second electrode arrangement is patterned such that it includes electrode areas and spaces adjacent to the electrode areas, and wherein the dielectric material extends at least partially in or over the spaces. | 04-02-2015 |
| 20150116893 | ELECTROSTATIC ACTUATOR, VARIABLE CAPACITANCE CAPACITOR, ELECTRIC SWITCH, AND METHOD FOR DRIVING ELECTROSTATIC ACTUATOR - An electrostatic actuator includes: a fixed driving electrode that is disposed on a silicon substrate; a movable driving electrode that is disposed so as to face the fixed driving electrode and approaches the fixed driving electrode with an electrostatic force generated between the movable driving electrode and the fixed driving electrode; and a pair of spacers that comes in contact with the movable driving electrode in an approaching state in which the fixed driving electrode and the movable driving electrode approach each other and forms a prescribed air gap between the fixed driving electrode and the movable driving electrode, wherein each of the spacers has a spacer electrode portion that comes in contact with the movable driving electrode via an insulator and has the same potential as one of the electrodes at least in the approaching state. | 04-30-2015 |
| 20190144263 | ACTUATOR PLATE PARTITIONING AND CONTROL DEVICES AND METHODS | 05-16-2019 |
| 361291000 | Compression type | 3 |
| 20090040683 | ELECTRICAL DEVICES HAVING ADJUSTABLE CAPACITANCE - Electrical devices having tunable capacitance are provided. The tunable capacitance is achieved by placing an appropriate material between substrate layers and by controllably applying a pressure to the material to compress the material or alter the shape of a well in which the material is contained, and thereby alter the capacitance of the electrical device. The composition, shape and dimension of the embedded materials determine how the capacitance of the electrical device is altered upon compression of the embedded material in response to an applied control signal. Generally, as the embedded material is compressed, the material will become more dense and the capacitance of the integrated electrical device is altered. | 02-12-2009 |
| 20120300359 | CURRENT PASSING DEVICE AND CURRENT PASSING METHOD - A current passing device passes current through bodies. The current passing device includes a first current receiving element having an electrical resistance, a second current receiving element having a contact resistance greater than the electrical resistance of the first current receiving element in a state in which the second current receiving element has been brought into direct contact with the first current receiving element without pressing the second current receiving element, a pressing mechanism arranged to press the first current receiving element and the second current receiving element closer together, and an electrically conductive intervening member disposed between the first current receiving element and the second current receiving element. The intervening member has a degree of deformation greater than degrees of deformation of both the first and second current receiving elements in a case where the intervening member has been pressed due to the pressing mechanism. | 11-29-2012 |
| 20120320492 | Apparatus and Associated Methods - An apparatus including first and second electrodes separated by an electrolyte, at least one of the first and second electrodes including an actuating substrate configured to undergo reversible deformation during actuation, wherein reversible deformation of the actuating substrate causes a decrease in the internal resistance of the apparatus. | 12-20-2012 |
| 361292000 | By varying effective area of electrode | 7 |
| 20090059465 | MEMS CAPACITOR WITH CONDUCTIVELY TETHERED MOVEABLE CAPACITOR PLATE - A capacitive device including at least one actuator structure formed on a substrate is provided. The capacitive device further includes a moveable structure formed on the substrate and mechanically coupled to the at least one actuator structure. The moveable structure includes a moveable capacitive plate and a bridge, formed substantially planar to the moveable capacitive plate. The bridge is used to mechanically and electrically couple the moveable capacitive plate to a signal line formed on the substrate such that the moveable capacitive plate moves up or down based on a force generated by the at least one actuator structure. | 03-05-2009 |
| 20090080138 | FLUIDIC ELECTROSTATIC ENERGY HARVESTER - One embodiment of the present invention relates to a variable capacitor that operates without moving mechanical parts. In this capacitor electrically conductive electrodes are separated by an enclosed chamber filled with an electrically conductive material. The electrically conductive material can freely vary its position within the chamber. The capacitance of the device will vary as position of the conductive material changes due to external mechanical motion (ex: rotation vibration, etc.) of the device. Other embodiments of this device are also disclosed. | 03-26-2009 |
| 361294000 | Direct travel piston type | 1 |
| 20140009863 | VARIABLE CAPACITANCE TYPE CAPACITOR - A variable capacitance type capacitor includes an inside member and an outside member including a space for housing the inside member. The inside member has a columnar shape, and a first conductor pattern is formed on a circumferential surface thereof. The outside member has a predetermined dielectric constant, and a second conductor pattern is formed on an outer circumferential surface thereof so as to oppose the first conductor pattern formed on the inside member. The inside member housed in the space of the outside member is displaced relative to the outside member in a direction of a central axis of the inside member in response to an externally applied force, and an opposed area between the first conductor pattern and the second conductor pattern changes to thereby form a capacitance corresponding to the externally applied force between the first electrode and the second electrode. | 01-09-2014 |
| 361295000 | Piston trimmer | 1 |
| 20100232083 | Trimmer Capacitor - A trimmer capacitor is provided which includes a conductive bushing having a first terminal of the capacitor formed integrally therewith, a rotor threadably engageable with the bushing, and a dielectric portion attached at one end to the bushing and having a metallized stator surrounding the dielectric portion near the opposite end thereof. The metallized stator forms the second terminal of the capacitor, and is positioned above the bottom edge of the dielectric portion. The rotor includes transverse slots which bias the rotor in position against the bushing, to prevent undesired rotation of the rotor. | 09-16-2010 |
| 361296000 | Sliding plates | 1 |
| 20100172064 | ELECTRIC APPARATUS FOR ELECTRIC POWER - A shape of longitudinal section of a side wall of an insulation tube is formed into an arch. With this shape, as compared with a mere cylindrical insulation member, it is possible to elongate a creepage distance without extending a length in an axial direction of the insulation tube (a spatial distance between both conductive members) and to improve the insulation withstanding voltage characteristic against the shunt current. In addition, a surface area on an arch surface becomes large, thereby facilitating heat absorption on an arch surface on an inner peripheral surface side of the side wall and facilitating heat radiation on an arch surface on an outer peripheral surface side of the side wall. | 07-08-2010 |
| 361298100 | Rotary plates | 2 |
| 20110228441 | VACUUM CAPACITOR - [Object] An object of the present invention is to provide a vacuum capacitor, a vacuum state of a vacuum chamber of which is maintained without bellows etc., and whose capacitance is easily adjustable, and a decrease of life of which is lessened. | 09-22-2011 |
| 361299100 | Plural capacitors | 1 |
| 20130229747 | BALANCED VOLTAGE VARIABLE CAPACITOR DEVICE - A variable capacitor device includes a stator and a rotor. The stator includes first and second stator plates separated by electrically insulating material. The rotor includes first and second rotor plates connected by a rod, the rotor being configured to move axially for adjusting alignment of the first rotor plate relative to the first stator plate and the second rotor plate relative to the second stator plate, respectively. The first stator plate and the first rotor plate form a first variable capacitor, and the second stator plate and the second rotor plate form a second variable capacitor connected in series with the first variable capacitor. A first capacitance of the first variable capacitor and a second capacitance of the second variable capacitor are simultaneously adjustable upon the axial movement of the rotor to provide an adjustable total capacitance of the variable capacitor device. | 09-05-2013 |
