Abstract: A steel material excellent in alcohol-induced pitting corrosion resistance and alcohol-induced SCC resistance enables application in large structures without the need of alloy treatment or addition of inhibitors, by improving the pitting corrosion resistance and the SCC resistance of the steel material itself, by having a chemical composition containing, by mass % C: 0.03% to 0.3%, Si: 0.01% to 1.0%, Mn: 0.1% to 2.0%, P: 0.03% or less, S: 0.01% or less and Al: 0.1% or less, and one or both of Mo: 0.03% to 1.0% and W: 0.03% to 1.0%, and at least two of Sb: 0.005% to 0.5%, Sn: 0.01% to 0.3% and Nb: 0.005% to 0.1%, and the balance including Fe and incidental impurities.

Abstract: A steel material has excellent atmospheric corrosion resistance and a composition which contains more than 0.06% and less than 0.14% C, 0.05% or more and 2.00% or less Si, 0.20% or more and 2.00% or less Mn, 0.005% or more and 0.030% or less P, 0.0001% or more and 0.0200% or less S, 0.001% or more and 0.100% or less Al, 0.10% or more and 1.00% or less Cu, 0.10% or more and 0.65% or less Ni, 0.0001% or more and 1.000% or less Mo, preferably 0.005% or more and 1.000% or less Mo, 0.005% or more and 0.200% or less Nb, and Fe and unavoidable impurities as a balance.

Abstract: A coil for electrical and electronic equipment comprises a spiral conductor coil 2 prepared by disposing coaxially a plurality of conductors 4a through 4d each having a flat circular arc-shaped configuration in multiple stages along a vertical direction, and linking sequentially ends of these conductors 4a through 4d to each other by means of linking members 5a through 5c in the vertical direction; and an insulating layer 3 covering the surface of the conductor coil 2, so that a relationship between a conductor width and a coil core diameter does not depend mutually, it becomes possible to increase and decrease optionally the conductor width and the coil core diameter, and as a result, a wider conductor width and a smaller coil core diameter in the conductor coil 2 than that of a conventional coil can be achieved.

Abstract: A flexible flat cable has a single conductor or a plurality of conductors, juxtaposed to each other or one another, which are sandwiched between a pair of plastic films with an adhesive to form an integral structure. The plastic films with an adhesive have a modulus of longitudinal elasticity of not less than 300 kg/mm2 and an elongation of not less than 20%. The plastic films are formed of a polyimide. The adhesive is formed of an epoxy having a glass transition temperature Tg of 80° C. or above, and the 180° peel strength between the adhesive and the single conductor or the plurality of conductors is not less than 0.5 kg/cm.

Abstract: In FFC1 integrated by sandwiching flat type conductors 2 between plastic films 3 with adhesives, wherein the conductors are formed of pure copper or a copper alloy having a wiredrawing draught of at least 95% and an elongation of at least 5%, and the plastic films with adhesives are formed of one having a modulus of longitudinal elasticity of at least 280 kg/mm2 and an elongation of at least 80%, and the 180° peel strength between the adhesives and the conductors 2 is made to be at least 0.8 kg/cm. As a result, even if the number of conductors 2 is increased than the conventional FFC, bending-resistant characteristic equal to or higher than the conventional FFC can be exhibited.

Abstract: In FFCl integrated by sandwiching flat type conductors 2 between plastic films 3 with adhesives, wherein the conductors are formed of pure copper or a copper alloy having a wiredrawing draught of at least 95% and an elongation of at least 5%, and the plastic films with adhesives are formed of one having a modulus of longitudinal elasticity of at least 280 kg/mm2 and an elongation of at least 80%, and the 180° peel strength between the adhesives and the conductors 2 is made to be at least 0.8 kg/cm. As a result, even if the number of conductors 2 is increased than the conventional FFC, bending-resistant characteristic equal to or higher than the conventional FFC can be exhibited.

Abstract: In a flexible flat cable comprising a single conductor or a plurality of conductors, juxtaposed to each other or one another, which are sandwiched between a pair of plastic films with an adhesive to form an integral structure, the plastic films with an adhesive each are formed of a polyimide with an adhesive which has a modulus of longitudinal elasticity of not less than 300 kg/mm2 and an elongation of not less than 20%, the adhesive is formed of an epoxy having a glass transition temperature Tg of 80° C. or above, and the 180° peel strength between the adhesive and the conductor is not less than 0.5 kg/cm. By virtue of this constitution, a novel flexible flat cable can be realized which has significantly improved heat resistance and, at the same time, has excellent flex resistance even at a high temperature of 80° C. or above.