Abstract: At least a winding of a stator stack 2 is molded by injecting a fused resin molding material into a space formed between a top mold and a bottom mold member. When the stator stack 2 of the resolver, which is annular and includes a coiled winding 7, is sandwiched between the top mold member 10 and bottom mold member 20, a movable disc 12 is urged by a spring device 13, into close engagement with the bottom mold member 20. While the movable disc 12 is closely engaged with the bottom mold member 20, the stack 2 of the resolver is sandwiched between the bottom mold member 20 and the top mold member 10. This method prevents the generation of gaps between the stator stack 2 and mold 10, 20 due to unevenness of the thickness in the stator stack 2.

Abstract: At least a winding of a stator stack 2 is molded by injecting a fused resin molding material into a space formed between a top mold and a bottom mold member. When the stator stack 2 of the resolver, which is annular and includes a coiled winding 7, is sandwiched between the top mold member 10 and bottom mold member 20, a movable disc 12 is urged by a spring device 13, into close engagement with the bottom mold member 20. While the movable disc 12 is closely engaged with the bottom mold member 20, the stack 2 of the resolver is sandwiched between the bottom mold member 20 and the top mold member 10. This method prevents the generation of gaps between the stator stack 2 and mold 10, 20 due to unevenness of the thickness in the stator stack 2.

Abstract: A corrosion prevention method includes coating a lamination of layered steel parts. The lamination is vacuum-impregnated with an acrylic resin having a high permeability. The acrylic resin fills the gaps between the steel layers of the lamination and is cured. Then, an insulation coating is applied using anion electrodeposition. The gaps and edges of the steel parts are protected by the highly corrosion-resistant resin. Consequently, the lamination is highly corrosion-resistant.

Abstract: A substrate consisting essentially of regenerated collagen fibrils is provided which is in the form of a bead, or microsphere and comprises irregularly entangled regenerated collagen fibrils each having a diameter of 10-1000 m.mu. and an aqueous solution existing between the regenerated collagen fibrils, the content of the regenerated collagen fibrils being 20-0.01 wt. %. The substrate can be used for cell culture or for measuring adhesion activity of blood platelet.According to one method of manufacturing the collagen beads, an acidic aqueous collagen solution is dispersed in a water-immiscible organic solvent in the form of numerous droplets to form an emulsion, and the droplets are then coagulated by addition of a water-miscible organic solvent and an alkali to the emulsion.