Patent ID: 7551053

Claim:
A coil apparatus comprising: a core; a winding; and a terminal, wherein the core has terminal attachment portions at opposed both ends thereof, and has a winding portion in an intermediate portion thereof, the winding is wound around the winding portion, the terminal is a part to which an end of the winding is connected, formed of one metal sheet, and includes an attachment portion, an intermediate portion and a bottom portion, one end of the attachment portion is fixed to the terminal attachment portion of the core, one end of the intermediate portion is continuous with the other end of the attachment portion at a bent portion, the bottom portion has one end which is continuous with the other end of the intermediate portion at a bent portion, faces the attachment portion, and has the other end as a free end, and the intermediate portion has a hole in a plane thereof, both inner edges of the hole opposed to each other in at least one direction having an arc shape.