Patent ID: 7469469

Claim:
A method of producing a coil component, comprising: forming a coil section having a through hole, and covering the coil section with a package member and causing terminals connected to the coil section to project from the package member, wherein the step of forming the coil section comprises: forming a plurality of ring sections comprising a metallic plate in a plane, said ring sections connected to each other by ring connecting sections, and bending the ring sections at the ring connecting sections such that the ring sections are placed one on top of another, and such that terminal sections extend from opposite sides of said coil section with respect to the centers of the ring connecting sections; each ring section comprises an arc-shaped portion having a slit formed by cutting a part of the ring section, and a winding direction of each ring section is opposite from each adjacent ring section, and end sections of the arc-shaped portion of the ring sections are connected to each other through the ring connecting sections; each terminal section is located at an end section of the arc-shaped portion of the ring section where the ring sections are not connected to each other; the ring sections are formed such that the coil component comprises outer rings connected to said terminals and at least one inner ring, an extension line extending from a center of each of the outer rings extends along a substantially center portion of a corresponding terminal connected to said outer ring; and a sum of angles formed (1) at a center of the at least one inner ring by center lines connecting said center of the inner ring with centers of each adjacent ring section, and (2) at a center of each of the outer rings by a centerline connecting the center of the outer ring with an adjacent inner ring and the extension line extending from the center of the outer ring along the substantially center portion of the corresponding connected terminal, is approximately 180°.