Abstract: A humidifier includes a heating element including a porous structure of electrically resistive and thermally conductive material configured to substantially vaporise liquid that is passed through the porous structure. The porous structure has a liquid inlet and a vapour outlet. The humidifier further includes an outer housing surrounding at least a portion of the porous structure for containing the liquid and vapour within the porous structure. The porous structure includes a first electrical connector and a second electrical connector, the first and second connectors being configured for receiving electrical power and applying a voltage across the porous structure to generate heat.

Abstract: A valve-type arrester includes a heat sink for dissipating heat from the interior of the valve-type arrester into the surroundings of the valve-type arrester. The heat sink has a circular-cylindrical main body with a base surface, a top surface parallel to the base surface and a casing surface connecting the base surface and the top surface. The heat sink additionally has a plurality of fins disposed on the main body, in which each fin is formed in the shape of a sheet or a leaf and disposed on the casing surface of the main body.

Abstract: A wiring substrate includes a substrate main body having a first main face and a second main face opposite the first main face; a resistor formed on the first main face; a plurality of first-main-face-side wiring layers which are each formed on the resistor and which each include a grounding metal layer formed of a metal having a resistance lower than that of the resistor and a conductor layer formed on the grounding metal layer; a second-main-face-side wiring layer formed on the second main face; and a via which is formed in the substrate main body and which establishes electrical connectivity between the first-main-face-side wiring layers and the second-main-face-side wiring layer. The wiring substrate further includes a conductive covering layer which covers an upper surface and substantially covers the side surfaces of each of the first-main-face-side wiring layers.

Abstract: The present invention is to provide an electronic component where positional accuracy for arranging members constituting a circuit element such as a resistor element and the like is mitigated and corrosion of a terminal electrode caused by sulfur in the atmosphere is reduced.

Abstract: An electrical component having a base body includes a layer stack of mutually overlapping, electrically conductive electrode layers that are separated from one another by electrically conductive ceramic layers. The electrically conductive ceramic layers are composed of a ceramic whose specific electrical resistance exhibits a negative temperature coefficient. The electrically conductive ceramic layers are produced of ceramic green films that are sintered in common with the electrode layers, and outside electrodes that are electrically conductively connected to the electrode layers are arranged at two opposite outside surfaces of the base body. A method for the manufacture of the component and to the employment of the component is also provided.

Abstract: A position sensor comprises a resistive element positionable on a first surface. A pair of leads are on the resistive element, the pair of leads adapted to supply a first voltage, such as by being grounded. An intermediate lead is positioned on the resistive element between the pair of leads, the intermediate lead being adapted to provide a second voltage. A contact element is positionable on a second surface, the contact element adapted to contact at least a portion of the resistive element to detect a voltage at a contact position, the detected voltage being related to the position or movement of the second surface relative to the first surface. In another version, a position sensor comprises a resistive element comprising first and second resistive strips. A plurality of leads are positioned on each resistive strip to provide a voltage to each resistive strip.

Abstract: Disclosed is a variable voltage protection device for electronic devices which in one aspect comprises a thin layer of neat dielectric polymer or glass positioned between a ground plane and an electrical conductor for overvoltage protection, wherein the neat polymer or glass layer does not include the presence of conductive or semiconductive particles. Also disclosed is the combination of the neat dielectric polymer or glass thin layer positioned on a conventional variable voltage protection material comprising a binder containing conductive or semiconductive particles. A multi-layer variable voltage protection component is disclosed comprising three layers of overvoltage protection material wherein the outer two layers contain a lower percentage of conductive or semiconductive particles and wherein the inner layer contains a higher percentage of conductive or semiconductive particles.

Abstract: There is provided a method for producing a metal/ceramic bonding article, the method including the steps of: arranging a metal plate 12 of an overall-rate solid solution type alloy on a ceramic substrate 10; and heating the metal plate 12 and the ceramic substrate 10 in a non-oxidizing atmosphere at a temperature of lower than a melting point of the alloy to bond the metal plate 12 directly to the ceramic substrate 10. According to this method, it is possible to easily bond an alloy plate directly to a ceramic substrate, and it is possible to inexpensively provide an electronic member for resistance without causing the alloy plate to be deteriorated.

Abstract: A resistor cascade has a multiplicity of electrical resistors connected in series, and each electrical resistor has at least one single-walled carbon nanotube.

Abstract: A plurality of PTC material layers and a plurality of metal plates are sandwiched together with one adjacent pair of metal plates connected in series through one layer of PTC material. The remaining PTC material layers are connected in parallel with the one layer by selectively interconnecting the other metal plates with the one adjacent pair of metal plates.

Abstract: A sheet-like heating element using an electrically conductive polymer complex consisting of a) a polycation of polyheteroaromatic compound; and b) a polyanion of thermoplastic polymer, containing a sulfated alcohol group in the repeating structural unit, having film-forming properties.

Abstract: An electrical external resistor with a plate-like, electrical insulating carrier element and a flat resistance element arranged on the upper side of the carrier element. The carrier element has several films forming a closed coating and varying in their electrical conductivity. The films arranged on the upper side and on the lower side of the carrier element consist of cermet, and the film covering the edge area of the carrier element consists of an electrically insulating material. By means of springs or a pressure distribution plate, the resistance element is pressed against the upper cermet film of the carrier element. The interior space of the housing is filled with a casting compound made of addition cross-linking two-component silicon caoutchouc (rubber). The electrical external resistance is discharge-free.

Abstract: An electronic device is provided which has a function of an organic film condensor. The device comprises a plural number of electroconductive layers each comprising a monomolecular film of an organic molecule having both of an electroconductive site and a hydrophobic site in combination or a built-up film thereof, and a dielectric layer of a monomolecular film of an organic molecule having both of a hydrophobic site in combination or a built-up film thereof between the electroconductive layers laminated on a substrate.

Abstract: A fuel heater for vaporization of an alcohol fuel from a fuel line to an internal combustion engine for delivering vaporous fuel to a carburetor. The fuel heater includes a stack of generally planar foraminous PTC heaters that are arranged in a container having an insulated interior defining a fuel flow path having an inlet and an outlet and are separated from each other by generally flat ring-like conductive spacers with electrically conductive ears having conductor receiving holes therein. Alternate conductive spacers are disposed in two channels in a housing and connected to opposite sides of a power supply whereby said PTC heaters can raise the temperature of the incoming fuel and vaporize it. Alternative ears of the electrically conductive spacers are radially offset from each other whereby one row of ears is disposed in one channel and another row is disposed in the other channel.

Abstract: An AC resistor attenuator with low parasitic capacitance coupling and, thus, a substantially constant attenuation value over a relatively wide frequency range is disclosed. The AC resistor attenuator comprises a first elongate resistor substantially entirely surrounded by a second elongate resistor. The first and second elongate resistors are thermally matched and have a substantially identical resistance profile. The first and second resistors are connected in series. The other ends of the first and second resistors are connected across the source of the signal to be attenuated. The attenuated signal is obtained at the junction between the first and second resistors. Except in the case where fifty percent (50%) attenuation is to be provided, the higher value resistance of the attenuator forms the first resistor and the lower value forms the second resistor.

Abstract: An electric heating device for heating fluid media includes a plurality of disc-shaped porous bodies each consisting of a plurality of felted togehter polycrystaline metal whiskers grown out of a gas phase and connected each to one another at their points of contact. A plurality of disc-shaped electric heating elements alternate with the bodies to form a column for connection to a voltage source. The total electrical resistance of the elements is greater than the total electrical resistance of the porous bodies. In one embodiment the bodies and elements are both porous and form a longitudinal passage along the column and means are provided for delivering fluid medium to one end of the passage to be heated as it flows lengthwise of the column. In another arrangement the bodies and elements are centrally apertured to form a central longitudinal passage and means are provided for delivering the fluid medium to one end of the passage.