Abstract: A electric motor control device comprising a converter section converting AC voltage to DC voltage, an inverter section converting DC voltage from the converter section to AC voltage and supplying said AC voltage to electric motor, an inverter control unit controlling said inverter section, a current detection unit detecting the current flowing in said electric motors and a power calculation unit estimating the temperature of said electric motors from said detected current, calculating the resistance of said electric motors from said estimated temperature, and calculating the copper loss from said calculated resistance.

Abstract: Provided is a lustrous coating material composition comprising a flaky titanic acid, a phosphoric acid group-containing resin, and an acrylic resin and being capable of forming a lustrous resin film which has a good silky texture with a high luster and which is sufficiently excellent in not only initial adhesion but also water-resistant adhesion with the occurrence of peeling being sufficiently suppressed.

Abstract: Provided is a lustrous coating material composition comprising a flaky titanic acid, a phosphoric acid group-containing resin, and an acrylic resin and being capable of forming a lustrous resin film which has a good silky texture with a high luster and which is sufficiently excellent in not only initial adhesion but also water-resistant adhesion with the occurrence of peeling being sufficiently suppressed.

Abstract: Polyaniline is added into a glycidyl group- or isocyanate group-containing (meth)acrylate to obtain a polyaniline-added prepolymer, and then the obtained polyaniline-added prepolymer and another unsaturated group-containing monomer undergo additive copolymerization at their respective double bonds to obtain a polyaniline graft polymer having a weight-average molecular weight of 1,000 to 100,000.

Abstract: Polyaniline is added into a glycidyl group- or isocyanate group-containing (meth)acrylate to obtain a polyaniline-added prepolymer, and then the obtained polyaniline-added prepolymer and another unsaturated group-containing monomer undergo additive copolymerization at their respective double bonds to obtain a polyaniline graft polymer having a weight-average molecular weight of 1,000 to 100,000.

Abstract: A method for manufacturing a polyaniline by preparing an aniline mixed solution in which an antirust additive and at least one of aniline and aniline derivatives are mixed and polymerizing at least one of the aniline and the aniline derivatives by adding a polymerization initiator to the aniline mixed solution, polyaniline obtained by the method, a polyaniline-containing solution, and a coating material containing the polyaniline.

Abstract: In an antirust treated metal base material in accordance with the present invention, a coating film containing insulating polyaniline in a highly oxidized state (PE state) is formed on the surface of a metal base material. A method for antirust treatment of the surface of a metal base material includes a process of forming a coating film containing insulating polyaniline in a highly oxidized state (PE state) on the metal base material surface. According to the present invention, an antirust treated metal base material, in which the coating film of an insulating polyaniline system containing no dopants exhibits strong corrosion inhibition effect, and a method of antirust treatment for the metal base material are provided.

Abstract: A steel sheet overlap structure including a pair of joined steel sheets and an antirust layer which comprises an electrically conductive polymer, and which is provided between joining surfaces of the steel sheets.