Patent ID: 8378912

Claim:
An antenna coil comprising: a first coil portion including a first core portion around which coil wire is wound; a second coil portion including a second core portion wound with coil wire and intersecting with the first coil portion; and a case having a coil receiving portion receiving the first coil portion and the second coil portion as a cross-shaped coil, wherein the first coil portion and the second coil portion are structured as separate members from each other and have fitting portions fitting to each other at an intersection of the first coil portion and the second coil portion; the fitting portion of the first coil portion includes four protruding portions extending from two opposite sides of the first coil portion at a distance apart so as to form a receiving portion configured to receive the fitting portion of the second coil portion therebetween; the fitting portion of the second coil portion includes four protruding portions extending from two opposite sides of the second coil portion at a distance apart so as to form a receiving portion configured to receive the fitting portion of the first coil portion therebetween.