Patent ID: 8110059

Claim:
A method of manufacturing a three-dimensional decoration piece made of synthetic resin, the method comprising: laying an intermediate layer material of a thermoplastic synthetic resin and an upper layer material of a thermoplastic synthetic resin on a protruding mold of cathode; pressing the layers material from above by an indented mold of anode, to melt and mold the materials by high frequency dielectric heating, so as to form a three-dimensional molded body, said molded body being formed with a recessed section on a lower surface thereof, said molded body being temporarily anchored to the indented mold; pulling up the indented mold with the molded body; laying a lower layer material having a boding or sticking feature on a cathode having a flat surface; lowering the indented mold onto the cathode to press the layer materials; and melting the lower layer material by high frequency dielectric heating, so that the lower layer material flows into the recessed section to completely fill the recessed section with the molten lower layer material, so as to weld the molded body and the lower layer material.