Patent ID: 8541079

Claim:
An injection-molded product manufactured of a synthetic resin having light permeability, comprising: a pattern structure formed on an inner surface of the injection-molded product, and having protruding portions and recessed portions forming a pattern visible on an outer surface of the injection-molded product; and a coupling structure formed on one or more protruding portions of the pattern structure and extending substantially perpendicular from an adjoining surface of the pattern structure, said coupling structure extending along said one or more protruding portions of the adjoining surface of the pattern structure without covering any recessed portions of the pattern structure, wherein the coupling structure having a width and a length that is less than a width and a length of the adjoining surface of the pattern structure, and wherein the coupling structure is formed within an area defined by the adjoining surface of the pattern structure along the inner surface of the injection molded product to block visibility of the coupling structure from the outer surface of the injection-molded product.