Abstract: A circuit element for microwave and millimeter-wave bands and a method of producing the same. A dielectric line is made of a pure dielectric resin. A high-frequency wave absorbing member is made of a pure dielectric resin containing at least one of first, second and third powders dispersed therein. The first powder having a high specific inductive capacity, the second powder having a high magnetic permeability, and the third powder having a high specific resistance. A compression molding technique is used to fusion bond the high-frequency wave absorbing member to the dielectric line.

Abstract: Soundproofing materials consisting essentially of zinc oxide whisker particles having a nucleus body and needle crystal portions extending radially from the central body in different plural directions. The materials may comprise a support material for supporting the zinc oxide whisker particles. Such support materials include inorganic materials such as metals, ceramics, glasses, cements, mortars and various fillers in the form of powder, flakes, fibers and the like, and organic materials such as resins, rubbers, waxes and the like. These materials are particularly suitable for sound insulation, sound proofing, vibration damping and vibration insulation.

Abstract: A novel zinc oxide crystal has an octahedral nucleus whose faces are alternately zinc faces and oxide faces, and this crystal has such a geometric shape that a needle is grown on each of the faces. The needle grown on the oxide face is branched into three sections which are disposed in parallel relation, and the needle on the oxide face is shorter than the needle on the zinc face. This novel crystal having oxide films can be produced in a homogeneous manner by mixing zinc-tin alloy powder or tin powder with zinc powder, having an oxide film formed on each particle thereof, to form a powder mixture and then by heating the powder mixture at 820.degree. C. to 1100.degree. C. in an oxidizing atmosphere to oxide the same. The tin concentration in the power mixture is less than 40 wt. %.

Abstract: Soundproofing materials consisting essentially of zinc oxide whisker particles having a nucleus body and needle crystal portions extending radially from the central body in different plural directions. The materials may comprise a support material for supporting the zinc oxide whisker particles. Such support materials include inorganic materials such as metals, ceramics, glasses, cements, mortars and various fillers in the form of powder, flakes, fibers and the like, and organic materials such as resins, rubbers, waxes and the like. These materials are particularly suitable for sound insulation, sound proofing, vibration damping and vibration insulation.

Abstract: A metal composition comprising zinc oxide whiskers dispersed in a metal matrix. The whiskers comprise at least one needle crystal having a basal part whose diameter is from 0.7 to 14 micrometers and a length from the basal part to its tip of from 3 to 200 micrometers. The metal composition is isotropically reinforced with respect to mechanical strength and is significantly improved in free cuttability.

Abstract: A disclosed metallized film capacitor comprisesa number of first insulating foil film segments coated with metal electrode layers on at least each one surface thereof, the metal electrode layers with a same pattern on same sides of the first insulating foil film segments constituting a first electrode segment group, and the metal electrode layers with another same pattern on same sides of the first insulating foil film segments constituting a second electrode segment group, anda first and a second metal contact layers respectively disposed in contact with the first and the second electrode segment groups at side edges thereof, andthe capacitor is provided with fusing proof function for the purpose of prevention of emitting smoke from and/or burning of the capacitor, which is improved by features that the metal electrode layers comprises previously-processed portions at side edges thereof adjacent the first and the second metal contact layers, and that the previously-processed portions are electrically cut off

Abstract: The present invention relates to an improvement in a metallized film capacitor of wound-type and stacked-type which has been proposed to provide the capacitor with a protection function, i.e. an additional self-healing ability, at the time of dielectric breakdown. The vapor-deposited metal electrode of the capacitor is splitted into segments so that the capacitor itself can prevent a smoke-emitting or burning failure from actually occurring. The present invention improves the reliability of such the protection function by forming narrow current paths on the vapor-deposited metal electrode along a zone which makes it connect with the external connecting member. It also minimizes the loss in static capacitance and in material.