Patent ID: 8164409

Claim:
A coil component comprising: a first core having a first adhesion surface; a second core connected to the first core by an adhesive agent and having a second adhesion surface in confrontation with the first adhesion surface, at least the first adhesion surface being formed of a glass surface layer to which the adhesive agent is applied; an inductive component wound over the first core, and having one end portion and another end portion; and a pair of terminal electrodes provided at one of the first core and the second core, the one end portion being electrically connected to one of the terminal electrodes and the another end portion being electrically connected to remaining one of the terminal electrodes, wherein the first core is a drum core comprising a center section around which the inductive component is wound, the center section having one axial end and another axial end, a first flange section in a plate shape and provided at the one axial end, and a second flange section in a plate shape and provided at the another axial end, the first flange section and the second flange section providing a first confronting surface; wherein the second core is an external core having a second confronting surface in confrontation with the first confronting surface; wherein the first flange section has a first inner surface confronting the second flange section and connected with the one axial end, a first outer surface as a first axial end face of the drum core, and a first peripheral surface positioned between the first inner surface and the first outer surface; wherein the second flange section has a second inner surface confronting the first flange section and connected with the another axial end, a second outer surface as a second axial end face of the drum core, and a second peripheral surface positioned between the second inner surface and the second outer surface; wherein the center section has an outer peripheral surface positioned between the first inner surface and the second inner surface; and wherein the drum core has an entire outer surface formed with a glass layer to constitute the glass surface layer, the glass layer formed at the first inner surface, the second inner surface, and the outer peripheral surface having a thickness smaller than that of the glass layer formed at the first outer surface, the first peripheral surface, the second outer surface, and the second peripheral surface.