Patent ID: 8049588

Claim:
A coil device comprising: a first coil having a first winding including a first conductor wire wound about a first winding axis, and first and second ends which are both ends of the first conductor wire; a second coil having a second winding including a second conductor wire wound about a second winding axis, the second winding axis being arranged with the first winding axis, and third and fourth ends which are both ends of the second conductor wire; a package for sealing the first winding of the first coil and the second winding of the second coil, the package being made of magnetic material, wherein the first winding of the first coil and the second winding of the second coil are separated via the package, the second end of the first coil is connected with the third end of the second coil, and the first end of the first coil and the fourth end of the second coil are adapted to be connected to an outside of the package.