Patent ID: 7507911

Claim:
A coil for an electric rotating machine, comprising: a conductor configured by bundling a plurality of square strands and stacking the square strands like a coil with Roebel transposition; mica tape which is wound a plurality of layers around on surface of the conductor and made up of mica paper and cloth backing material; an insulation layer formed with impregnating and curing resin between wound layers of the mica tape; and inorganic particles supported with the mica tape using an adhesive comprising a first component having mutual dissolubility with the impregnating resin and a second glue component insoluble in the impregnating resin, the second glue provided in an amount sufficiently small so as not to inhibit impregnation of impregnating resin, yet sufficiently large so as to impede outflow of said inorganic particles.