| 摘要 |
PROBLEM TO BE SOLVED: To facilitate injection molding of secondary products and reduce wastes of materials, in an antenna element composed of injection molded circuit components of which the plating of electrically conductive coating on spiral shaped outer rims of primary molded products or secondary molded products by performing injection molding of the secondary molded products on spiral shaped grooves molded on an outer rim of the primary molded products into a cylindrical shape. SOLUTION: The antenna element forms through-holes 14 at the axial center of primary molded products 10, connects the holes 14 and grooves 11 in spiral shapes, through a plurality of distribution paths 13 and performs the injection molding of secondary molded products 20 in the grooves 11 via the holes 14 and distribution paths 13. COPYRIGHT: (C)2003,JPO |
