Patent ID: 7605682

Claim:
A magnetic core type laminated inductor comprising: electrically insulating magnetic bodies; conductive patterns laminated with the magnetic bodies, the conductive patterns overlapping in a lamination direction, in which the electrically insulating magnetic bodies and the conductive patterns are laminated, in the magnetic bodies and forming a single coil revolving spirally, an axial direction of the spiral coil being along the lamination direction, the magnetic bodies forming a closed magnetic circuit guiding annularly a magnetic field from the coil; magnetic gap layers interposed between layers of the conductive patterns in the lamination direction, wherein the layers of conductive patterns directly engage the magnetic gap layer without a magnetic body layer interposed therebetween, the magnetic gap layers are formed separately in a plurality of layers mutually distant from each other while sandwiching a magnetic body in the lamination direction, the plurality of magnetic gap layers are disposed symmetrically in the lamination direction relative to a central portion of lamination in a magnetically equivalent fashion, and the respective magnetic gap layers are interposed with at least two layers of the conductive patterns between the magnetic gap layers.