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7623020 |
Multilayer ceramic electronic component
A multilayer ceramic electronic component includes a multilayer body, a first internal electrode provided in the multilayer body, and a second internal electrode provided in the multilayer body and...
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7623019 |
Varistor with three parallel ceramic layer
The present invention discloses a varistor which comprises three parallel ceramic layers. Each of the ceramic layers has two electrodes on both sides thereof. Four leads are properly arranged...
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7618550 |
Polymer compound with nonlinear current-voltage characteristic and process for producing a polymer compound
The polymer compound contains a polymer matrix and a filler embedded in the matrix. The filler comprises two filler components with nonlinear current-voltage characteristics deviating from one...
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7612648 |
Disc varistor and method of manufacturing the same
Disclosed herein are a disc varistor having a capability to absorb a double amount of surge and a method of manufacturing the varistor. The varistor includes a disc-shaped first ceramic body having...
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7609141 |
Flexible circuit having overvoltage protection
A first voltage variable material (“VVM”) includes an insulative binder, first conductive particles with a core and a shell held in the insulating binder and second conductive particles without...
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7605352 |
Method for sorting positive temperature coefficient (PTC) elements
In a method for sorting PTC elements having different resistance-temperature characteristics, a predetermined voltage that allows a current to sufficiently decay is applied to each of PTC elements...
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7598840 |
Metal oxide varistor having thermal cut-off function
A MOV includes a MOV body, a first lead, a thermal cut-off fuse, a second lead and a silver electrode area. The MOV of the present invention employs the silver electrode area formed on and...
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7570149 |
Electronic circuit device including electric element and varistor on substrate and its manufacture method
An electronic element having at least a pair of electrodes is formed on a substrate. A varistor element is formed on the substrate, the varistor element including a pair of electrodes and a...
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7558042 |
Devices and system for electrostatic discharge suppression
A electrostatic discharge suppression device including an electrostatic discharge reactance layer having a first side and a second side, a first electrode coupled to the first side and comprising a...
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7541910 |
Multilayer zinc oxide varistor
A multilayer zinc oxide varistor without bismuth oxide system ingredients, and having variable breakdown voltages by controlling the thickness of the ceramic material; the varistor is bismuth-free...
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7525409 |
Method of manufacturing a varistor
A varistor including a varistor body with two parallel end faces made of a material that contains one or more metal oxides, and at least one electrode made of an electrically conductive electrode...
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7453681 |
Metal oxide varistor with a heat protection
A metal oxide varistor integrally formed with a heat protection structure that will automatically go to open circuit in conditions of overheating due to sustained over-voltages. The metal oxide...
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7427802 |
Irreversible reduction of the value of a polycrystalline silicon resistor
The invention relates to a method and device for the irreversible reduction of the value of an integrated polycrystalline silicon resistor. The inventive method consists in temporarily subjecting...
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7391295 |
High voltage over-current protection device
A high voltage over-current protection device includes a positive temperature coefficient (PTC) electrically conductive heat-dissipation layer and two metal electrodes. The PTC electrically...
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7372357 |
Varistor body and varistor
A preferred varistor body 2 has a structure of alternately laminated internal electrode layer 12 and varistor layer 14 . The varistor layer 14 has a composition containing ZnO as the main...
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7365632 |
Resistive elements using carbon nanotubes
Resistive elements include a patterned region of nanofabric having a predetermined area, where the nanofabric has a selected sheet resistance; and first and second electrical contacts contacting...
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7362209 |
Zinc oxide resistor and its manufacturing method
Disclosed are a zinc oxide resistor structure, and methods of forming a glass layer and a resistor, which are required for producing the resistor structure. The zinc oxide resistor comprises zinc...
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7352267 |
Cylindrically shaped superconductor component and its use as resistive current limiter
The present invention is directed to a cylindrically shaped superconductor component particularly useful as resistive current limiter composed of a cylindrical superconductor body, in particular of...
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7320762 |
Polymer compound with nonlinear current-voltage characteristic and process for producing a polymer compound
The polymer compound contains a polymer matrix and a filler embedded in the matrix. The filler comprises two filler components with nonlinear current-voltage characteristics deviating from one...
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7312690 |
Temperature sensor
A temperature sensor includes a probe section for insertion into a hot zone. The probe section includes a thermistor, a first lengthy pin terminating at the thermistor, and a second lengthy pin...
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7277003 |
Electrostatic discharge protection component
An electrostatic discharge protection component of an array type includes ceramic insulating substrate 12 ; varistor region 10 which is pasted on ceramic insulating substrate 12 and then is...
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7271700 |
Thin film resistor with current density enhancing layer (CDEL)
A thin film resistor device and method of manufacture includes a layer of a thin film conductor material and a current density enhancing layer (CDEL). The CDEL is an insulator material adapted to...
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7258819 |
Voltage variable substrate material
The present invention provides an improved voltage variable material (“VVM”). More specifically, the present invention provides an improved printed circuit board substrate, an improved device...
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RE39660 |
Surface mounted four terminal resistor
An electrical resistor has a surface mounted four terminal current sensor of a very low resistance value and capable of handling short pulses of high power. It comprises a flat metal late, 1 to 50...
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7218492 |
Devices and systems for electrostatic discharge suppression
A device ( 10 ) for suppressing electrostatic discharge comprises first and second multilayer structures ( 14, 16 ) surrounding an electrostatic discharge reactance layer ( 12 ), the resistance of...
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7217374 |
Resistance element, method of manufacturing the same, and thermistor
To provide a resistance element having an electric resistance body with excellent stability and a method of manufacturing the same. The resistance element includes an electric resistance body, on a...
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7167352 |
Multilayer chip varistor
A multilayer chip varistor comprises a multilayer body and a pair of external electrodes formed on the multilayer body. The multilayer body has a varistor section and a pair of outer layer sections...
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7123125 |
Structure of a surface mounted resettable over-current protection device and method for manufacturing the same
The present invention is directed to a structure of a surface mounted resettable over-current protection device and a method for manufacturing the same. First, a raw material substrate having two...
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7099131 |
Surge absorber and surge absorber array
A surge absorber includes a laminated compact of a first ceramic green sheet having a first internal electrode film extending to both sides thereof, a second ceramic green sheet having an second...
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7075405 |
Multilayer chip varistor and method of manufacturing the same
The multilayer chip varistor of the present invention includes a varistor body including a plurality of varistor layers and inner electrodes arranged to sandwich each of the varistor layers,...
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7035072 |
Electrostatic discharge apparatus for network devices
The present invention provides an ESD apparatus that includes an electrical overstress suppression device in series with a capacitor. The ESD apparatus is ideally suited for use with network...
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7015787 |
Voltage-dependent resistor and method of manufacturing the same
A voltage-dependent resistor includes a composite of at least one semiconductive ceramic layer mainly containing ZnO and at least one metal oxide layer containing at least one of strontium and...
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7015786 |
Mechanical reinforcement to improve high current, short duration withstand of a monolithic disk or bonded disk stack
A mechanical reinforcement for an electrical apparatus has at least one electrical element with an outer surface and a reinforcing structure attached to the outer surface. The electrical element...
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7012500 |
GFCI with enhanced surge suppression
An MOV element is physically and electrically connected to a heat sensitive material which changes from a low impedance path to a high impedance path, such as a spark gap, when the temperature of...
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6995649 |
Variable resistor apparatus formed utilizing nanotechnology
A variable resistor apparatus includes a plurality of nanoparticles disposed between two terminals, wherein the plurality of nanoparticles provides an electrical resistance. An electric field...
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6981319 |
Method of manufacturing devices to protect election components
Devices capable of protecting electronic components during the occurrence of a disturbance event using printed circuit board manufacturing techniques. A three (3) layer structure is formed...
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6943659 |
Coated varistor
A varistor includes a varistor element, a first layer which is porous on the varistor element, and a second layer on th first coating. The thickness t (mm) of the second layer is not smaller than...
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6932928 |
Method of producing a PTC-resistor device
The invention relates to a novel method of producing a resistor device comprising a PTC-polymer element 2 and a varistor element 4 . Both elements are molded in a common molding process using...
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6693508 |
Protection of electrical devices with voltage variable materials
An arrangement of voltage variable materials for the protection of electrical components from electrical overstress (EOS) transients. A device having a plurality of electrical leads, a ground plane...
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6611192 |
Voltage-nonlinear resistor, method for making the same, and varistor using the same
A varistor includes a voltage-nonlinear resistor and varistor electrodes provided on the upper and lower surfaces of the voltage-nonlinear resistor. The voltage-nonlinear resistor is primarily...
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6608547 |
Low capacity multilayer varistor
The invention is directed to a low-capacitance multi-layer varistor having a ceramic body and two terminals that are applied on the ceramic body spaced from one another. The ceramic body is...
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6542065 |
Variable voltage protection structures and method for making same
A variable voltage protection component in accordance with this invention comprises a reinforcing layer of insulating material having a substantially constant thickness embedded in a voltage...
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6540944 |
Current limiting device with conductive composite material and method of manufacturing the conductive composite material and the current limiting device
A current limiting device comprises at least two electrodes; an electrically conducting composite material between the electrodes; interfaces between the electrodes and electrically conducting...
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6507269 |
Voltage nonlinear resistor
A voltage nonlinear resistor has a voltage nonlinear resistive body including zinc oxide, and a side face high-resistance layer provided on the side face of the resistive body. The high-resistance...
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6469611 |
Non-linear resistance with varistor behavior and method for the production thereof
The nonlinear resistor has varistor behaviour and has a matrix and a filler in powder form which is embedded in the matrix. The filler contains sintered varistor granules with predominantly...
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6459358 |
Flexible moldable conductive current-limiting materials
A current limiting PTC device ( 10 ) has two electrodes ( 14 ) with a thin film of electric conducting polymer material ( 20 ) disposed between the electrodes, the polymer material ( 20 ) having...
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6445280 |
Composite material switches
A device to protect electronic circuitry from high voltage transients is constructed from a relatively thin piece of conductive composite sandwiched between two conductors so that conduction is...
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6416682 |
Method of producing minerals under near-critical, critical and supercritical conditions
The present invention relates to methods of producing synthetic crystals (typically minerals) or comparable inorganic compounds by reactions of metal salts and metal oxyhydroxides under...
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6400253 |
Electronic component and method of manufacture therefor
An electronic component composed of alternating internal electrodes in a ceramic material, the internal electrodes being electrically connected to an external electrode on each end of the ceramic...
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6388555 |
Low profile mount for plural lower electrode metal oxide varistor package and method
A low profile mount for a disc varistor. A thermally sensitive switch is provided both for single and multiple electrode embodiments. The switch may be placed in a shorting circuit and include a...
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