Patent ID: 8044758

Claim:
An open magnetic circuit multilayer coil component comprising: a laminate including a coil incorporated laminate section and an exterior section, said coil incorporated laminate section including a plurality of conductors for a coil stacked with a plurality of magnetic layers containing an Ni—Zn—Cu-based ferrite material as their main constituent, said plurality of conductors for a coil electrically connected to form a coil in the coil incorporated laminate section, and said exterior section having magnetic layers stacked on external sides of the coil incorporated laminate section in a stacking direction of the coil incorporated laminate section; and a nonmagnetic layer containing a Zn—Cu-based ferrite material, the nonmagnetic layer provided within the laminate so as to cross a magnetic path formed within the laminate by energization of the coil, wherein a magnetic material constituting the magnetic layers contains 100 parts by weight of the Ni—Zn—Cu-based ferrite material and 0.1 to 2.0 parts by weight of Co in terms of Co 3 O 4 with respect to the Ni—Zn—Cu-based ferrite material.