Abstract: In an electronic component such as a multilayer ceramic capacitor having an external electrode which is formed on an outer surface of an element body provided with an internal electrode, an inner layer is formed by baking silver paste, for example, on only an end surface of the element body to be connected to the internal electrode, in order to provide a sufficient thickness to the external electrode for reducing dc resistance while avoiding a bad influence exerted by wet plating. An outer layer is formed by dry plating to cover the inner layer and an end portion of the element body. The outer layer is formed by a first layer of a nickel alloy, for example, and a second layer of silver, for example.

Abstract: A package-type solid electrolytic capacitor is provided which comprises a pair of capacitor elements, a pair of diodes associated with the capacitor elements, a pair of leads associated with the capacitor elements and the diodes, and a resin package enclosing the capacitor elements, the diodes and part of the leads. The leads may be exchangeably connectable to a positive and a negative electrodes of a circuit pattern. In one state of lead connection, one of the diodes passes a current only for one of the capacitor elements. In the other state of lead connection, the other diode passes a current only for the other capacitor element. Thus, the capacitor is non-polar and therefore can be mounted without paying any attention to the polarity.

Abstract: An induction heating furnace is disclosed comprising an induction coil assembly and a ladle having a metallic shell that supports a crucible holding metal to be heated by the furnace. The ladle is readily separated from the induction coil assembly so that the heated metal may be conveniently and reliably moved among operational stations. The induction coil assembly has a preselected length which is less than the length of the shell. The induction coil assembly surrounds, but does not touch the shell and generates an electromagnetic induction field. The induction coil assembly comprises a coil, upper and lower yokes and an intermediate yoke coextensive with the coil. The upper and lower yokes are separated from each other and electromagnetically coupled together by the intermediate yoke. The upper, lower and intermediate yokes each comprise stacked laminates formed of sheets of ferrous material.

Abstract: A package-type solid electrolytic capacitor is provided which comprises a capacitor element including a chip from which an anode wire partially projects out, a resin package enclosing the capacitor element, and a diode also enclosed in the package. The diode has a negative pole electrically connected to the anode wire, and a positive pole electrically connected to the chip. The diode is designed to allow passage therethrough of a forward current under a forward bias which is lower than the reverse dielectric breakdown voltage of the capacitor element.

Abstract: In order to obtain a stator of a variable capacitor, prepared is a ceramic laminate having a stator electrode provided in its interior and a plurality of burnaway films of carbon or resin, which can be burned away by firing, provided in positions corresponding to that of a concave portion in the form of layers. This ceramic laminate is fired to burn out the burnaway films thereby obtaining a sintered body provided with a plurality of cavities and a plurality of thin layers, and this sintered body is barrel-polished to crush the thin layers, thereby forming a concave portion. A rotor of a metal forming a rotor electrode is arranged on the stator obtained in the aforementioned manner. A cover of a metal is fixed to the stator through an engaging member engaging in the concave portion of the stator, to rotatably store the rotor while pressing the rotor against the stator by a spring action part.

Abstract: Solid electrolytic capacitors comprise a valve metal member having a dielectric film, with or without a conductive underlying layer, formed on the member, and a conductive polymer film formed on the layer. The conductive polymer film is formed by electrolytic polymerization of a polymerizable monomer contained in a system which comprises the monomer, a support electrolyte, and at least one member selected from silicic acids and silicates with or without phenol compounds. By this, the life of the capacitor even under high temperature and high humidity conditions is significantly improved. Methods for fabricating such capacitors are also described.

Abstract: An induction furnace with a crucible having a crucible axis, an induction coil and a furnace body containing a gas-tight jacket, and also with a cover which can be placed on the furnace body and has at least one gas connection, a charging valve and a pouring apparatus, the furnace body and cover being joined together releasably but hermetically by a flange connection, and being journaled in the joined state in a furnace frame by a tilting mechanism which engages the cover, and after the flange connection is separated the cover body can be removed from the furnace body which remains in the furnace frame.

Abstract: A system for for removing a band of coating material from a first end of a coated cylinder having a second opposite end including ablating the band of coating material with a laser beam and directing an annular curtain of compressed fluid against the band in a direction away from the second opposite end to create an air curtain along the outer surface of the cylinder in a direction from the second opposite end toward the band and the first end.

Abstract: A glass ceramic cooktop includes a free surface on which containers containing food to be prepared are placed, below surface there being provided a light and heat generator, such as a halogen lamp at which there is positioned a reflecting element having at least one face facing the generator and an opposing face facing an external environment. This latter face is exposed to an air flow generated by a cooling member positioned below the reflecting element, the air flow cooling the reflecting element, which heats up during the operation of the halogen lamp.

Abstract: A multiple resonant frequency decoupling capacitor is presented. The decoupling capacitor comprises a plurality of capacitive elements, each having a different resonant frequency to define a frequency bandwidth for noise supression. One of the capacitive elements having a resonant frequency indicative of the clock frequency of an integrated circuit being decoupled by the capacitor. Further, at least one other capacitive element having a resonant frequecny indicative of a harmonic frequency of the clock frequency.

Abstract: A surface-mount type ceramic capacitor particularly suitable for use in an intermediate to high tension circuit is disclosed, wherein lead terminals are spaced from a dielectric ceramic substrate except for a portion joined with electrodes. With this spaced arrangement, the ceramic capacitor has a high electric breakdown strength and an improved heat-resisting property and, hence, is capable of operating reliably over a long period of use.

Abstract: The invention discloses an upstanding surface mounting type electrolytic chip capacitor. The conventional capacitor has an asymmetrical mass distribution, and oscillations occur, with the result that an automatic surface mounting becomes difficult. The present invention provides upward projections along the edges of the cover portion of the holder, thereby minimizing the settling instability, and forming a plurality of soldering gas discharge and lead guide slots. Further, an annular groove is formed on the bottom of the cover portion and along the upper circumference of the capacitor, so that a short-circuit preventing step should be formed, and that the coupling between the capacitor and the holder should be reinforced. Accordingly, the lead drawing direction does not have to be considered, and the mass distribution of the capacitor becomes symmetrical.

Abstract: Multisheet SPF parts with braze joints at selected locations are produced with improved energy efficiency and at lower cost by heating the multisheet pack to its superplastic forming range below the melting point of the braze alloy, superplastically forming the pack to define braze joints having unmelted braze alloy; increasing the temperature to the braze temperature of the braze alloy, and cooling the pack below the superplastic range to freeze the braze alloy in the braze joint.

Abstract: This invention relates to a capacitor with cells of a double electric layer comprising of a case of dielectric material for accommodating a stack of capacitor cells having a double electric layer with electrolyte therein and having been compressed together in a stack, and further having at least two current collector plates connected to the stack of capacitor cells for collecting current, and; at least two current feeders connected to the at least two current collector plates for feeding current there through, at least two platens of dielectric material for insulation of said stack of capacitor cells and for providing impermeability to an electrolyte and are inert thereto, at least two strength plates having the stack of capacitor cells therebetween, and a flexible brace member connected between said at least two strength plates for retaining and holding said stack of capacitor cells in a compressed stack.

Abstract: A multilayered ceramic capacitor having internal electrodes comprising a substantially single-crystal metallic powder as a conductor, the powder having been produced by spraying a solution containing at least one metal salt to form droplets and heating the droplets to a temperature higher than the decomposition temperature of the metal salt and the melting point of the metal. When the metal salt forms an oxide at a temperature not higher than the melting point of the metal, the droplets are heated to a temperature higher than the decomposition temperature of the oxide. The multilayered capacitor is free from generated cracks in the ceramic material.

Abstract: An improved induction melting coil apparatus encapsulated with homogeneous inserts for controlling the direction of inductor flux density is disclosed. The inserts are relatively thick and rigid members which provide a low reluctance path within which the magnetic field travels while inhibiting inductive coupling of the magnetic field with surrounding auxiliary components. The inserts can be easily formed or machined into any desired shape for effectively encapsulating virtually any type of coreless induction melting coil.

Abstract: A capacitive micro-sensor includes a sandwich of at least two silicon plates. A peripheral stripe of each side of one plate is assembled to a corresponding stripe of the opposing surface of an adjacent plate through an insulating layer. The lateral sides of the sandwich are provided with notches partially penetrating in each of the insulating layers, and are thicker than the thickness of the insulating layers.

Abstract: An electrical capacitor includes an organic electrolyte to provide high power, high energy density, and broad operating temperature range. The capacitor includes electrodes and an electrolyte system comprising a salt combined with a solvent containing a nitrile. The electrolyte system is selected to be relatively nonreactive and difficult to oxidize or reduce so as to produce a high electric potential range. As examples, the electrolyte may include a solvent selected from the group consisting of acetonitrile, succinonitrile, glutaronitrile, propylene carbonate, and ethylene carbonate; a salt cation selected from the group consisting of tetraalkylamonium (R.sub.4 N.sup.+) and alkali metals; and an anion selected from the group consisting of trifluoromethylsulfonate (CF.sub.3 SO.sub.3.sup.-), bistrifluoromethylsulfurylimide (N(CF.sub.3 SO.sub.2).sub.2.sup.-), tristrifluoromethylsulfurylcarbanion (C(CF.sub.3 SO.sub.2).sub.3.sup.-), tetrafluoroborate (BF.sub.4.sup.-), hexafluorophosphate (PF.sub.6.sup.

Abstract: A crucible assembly for use in induction melting furnaces utilizes an inner crucible formed of partially stabilized zirconia and an outer support member formed of a sintered alumina. The crucibles are in the shape of a cylinder with a closed bottom wall and in the cylindrical wall area, the inner crucible and the outer support member are separated by a layer of porous ceramic fibers of alumina and silica and the entire assembly has been centered as a unit so that the outer support member with a porous layer allows for the thermal expansion and contraction of the inner crucible while limiting any stresses applied to the inner crucible and providing additional strength and support for the inner crucible.

Abstract: A crucible 1 of an induction melting apparatus has a cover 3 closing the crucible off hermetically and having a connection 5 for attaching the cover to a vacuum source 6. At the bottom the crucible 1 has a prolongation 7 in which a mold 9 is sealingly disposed. Thus, the mold 9 is evacuated together with the crucible 1 so that a vacuum chamber enveloping the crucible 1 and the mold (9) is unnecessary.