Abstract: A loudspeaker copper foil wire according to the present invention is excellent in flame resistance, moisture resistance, corrosion resistance, hopping resistance and soldering property, and capable of suppressing emanation of smell during a soldering operation. In the present invention, a copper foil wire body is impregnated or coated with a flame resistant wax prepared by blending 5 wt % to 50 wt % of a halogen-free aromatic condensation phosphoric ester flame retardant in a petroleum paraffin wax base.

Abstract: A battery having a collecting structure that can reduce internal resistance of the battery and a structure that allows easy manufacturing of the battery by the following processes is provided. An enlarged portion is formed near an opening end of a battery case and a supporting ledge is provided on the inner surface of the lower end of the enlarged portion. A collector of one polarity is bonded to an electrode plate group. A connection lead is bonded to the collector at one end and is bonded to a lower surface of a sealing member at the other end. An insulation gasket is mounted to a peripheral edge portion of the sealing member from a side opposite to the collector. The peripheral edge portion of the sealing member is supported by the supporting ledge with the insulation gasket interposed therebetween.

Abstract: The gradation correction device includes a luminance signal convertor to generate a luminance signal from the input R, G, B signals, a correction coefficient calculator which calculates the ratio to the luminance signal of the luminance signal after gamma correction to the predetermined gradation characteristics, and a multipliers to multiply the output from the correction coefficient calculator by each of the R, G, and B input signals. When the gradation correction is applied, effective brightness adjustment can be applied with no change in hue and saturation and without exceeding the dynamic range of a device.