US Patent 10559413 Coil electronic component

A coil electronic component includes a first coil and a second coil disposed on and beneath a main board, respectively, wherein the first coil includes a first coil pattern and a second coil pattern connected to each other through a first via of a first insulating layer and disposed on and beneath the first insulating layer, respectively, and the second coil includes a third coil pattern and a fourth coil pattern connected to each other through a second via of a second insulating layer and disposed on and beneath the second insulating layer, respectively. In this case, the main board, the first insulating layer, and the second insulating layer include through-holes formed in central portions thereof, respectively.