Method of producing a plate-like material with a resinous member for a window

A method of forming a resinous member on a plate-shaped material for a window in one piece, the method comprising the steps of:

• forming a recess at a side surface of a shaping mold;
• placing a surface of the plate-shaped material in contact with the side surface of the shaping mold, so that the recess is located at an inner peripheral region of the plate-shaped material at a position which is spaced apart from an edge of the plate-shaped material, and the recess forms a cavity between the shaping mold and the plate-shaped material which is spaced from said edge of said plate-shaped material;
• injecting or extruding a resinous material for forming the resinous member into the cavity;
• and
• curing the resinous material to form the resinous member, wherein the resinous material is formed in one piece on the plate-shaped material at said position spaced from the edge of the plate shaped material.