Patent ID: 7369028

Claim:
A coil component comprising: at least one coil block having a single coil body disposed within an insulating body, the single coil body including an inner coil portion and an outer coil portion, the inner coil portion being electrically connected to the outer coil portion while being surrounded by the outer coil portion; wherein the outer coil portion includes a first pattern group and a second pattern group that are disposed facing each other, the first pattern group including a plurality of annular patterns having different diameters and each having first and second opposite end segments, and also including a first extending portion disposed outside of the plurality of annular patterns and having a first end segment that is exposed from said at least one coil block, the second pattern group including a plurality of annular patterns having different diameters and each having first and second opposite end segments, wherein the n-th annular pattern of the first pattern group from the outside thereof is helically connected to the n-th annular pattern of the second pattern group from the outside thereof via the first end segments, wherein the second end segment of the n-th annular pattern of the first pattern group is connected to one of the end segments of the (n+1)-th annular pattern of the second pattern group such that the n-th and (n+1)-th annular patterns are helically connected to each other, and wherein the first extending portion has a second end segment that is connected to a free end segment of the outermost annular pattern of the second pattern group; and the inner coil portion includes a first multi-turn spiral pattern and a second multi-turn spiral pattern, the first spiral pattern being disposed within the innermost annular pattern of the first pattern group and having an outer end segment that is connected to a free end segment of the innermost annular pattern of the second pattern group, the second spiral pattern being disposed within the innermost annular pattern of the second pattern group, the second spiral pattern having an inner end segment that is connected to an inner end segment of the first spiral pattern and also having a second extending portion having an outer end segment that is exposed from said at least one coil block.