A coil component includes a body; a wound coil disposed in the body, and having a plurality of turns and first and second lead-out portions exposed to the surfaces of the body; a noise removing portion spaced apart from the wound coil, and including a pattern portion having a first end portion and a second end portion spaced apart from each other and forming an open loop, and a third lead-out portion connected to the pattern portion and exposed to one surface of the body; an insulating layer disposed between the wound coil and the noise removing portion; and first to third external electrodes disposed on the surfaces of the body, spaced apart from one another, and connected to the first to third lead-out portions, respectively, wherein one of the plurality of turns of the wound coil has a line width greater than a thickness thereof.

Disclosed herein is a coil component that includes: a first core having a mounting surface and a coil placing surface positioned opposite to the mounting surface; a lower coil placed on the coil placing surface such that a coil axis of the lower coil extends substantially perpendicular to the coil placing surface, the lower coil having one end drawn to a first area of the mounting surface and other end drawn to a second area of the mounting surface; and an upper coil substantially coaxially stacked on the lower coil, the upper coil having one end drawn to a third area of the mounting surface and other end drawn to a fourth area of the mounting surface. The lower coil is greater in a coil diameter than the upper coil.

A manufacturing method of a coil component comprising the steps of: preparing a coil assembly body in which a coil is attached on a magnetic core and a mold body which is formed with a cavity portion in the inside thereof and which includes at least one opening portion, putting a viscous admixture including magnetic powders and thermosetting resin and the coil assembly body in the cavity portion, pushing the put-in viscous admixture in the mold body, and thermally-curing the pushed-in viscous admixture and forming a magnetic exterior body which covers the coil assembly body.

A coil component includes a body; a wound coil disposed in the body, and having a plurality of turns and first and second lead-out portions exposed to the surfaces of the body; a noise removing portion spaced apart from the wound coil, and including a pattern portion having a first end portion and a second end portion spaced apart from each other and forming an open loop, and a third lead-out portion connected to the pattern portion and exposed to one surface of the body; an insulating layer disposed between the wound coil and the noise removing portion; and first to third external electrodes disposed on the surfaces of the body, spaced apart from one another, and connected to the first to third lead-out portions, respectively, wherein one of the plurality of turns of the wound coil has a line width greater than a thickness thereof.

A continuous coil for an inductive component includes a plurality of turns formed by at least one conductor. The continuous coil is substantially egg-shaped. Other example coils, transformers, etc. are also disclosed.

Embodiments are directed to a method of forming a laminated magnetic inductor and resulting structures having anisotropic magnetic layers. A first magnetic stack is formed having one or more magnetic layers alternating with one or more insulating layers. A trench is formed in the first magnetic stack oriented such that an axis of the trench is perpendicular to a hard axis of the magnetic inductor. The trench is filled with a dielectric material.

A method of manufacturing an inductor element includes preparing an insert member including a winding portion where a conductor is wound in a coil shape. A plurality of preliminary green compacts is obtained by conducting a preliminary compression molding of a granule containing a magnetic powder and a resin at a pressure of 2.5×10.sup.2 to 1×10.sup.3 MPa. The insert member and the plurality of preliminary green compacts are integrated so that a joint interface of the plurality of preliminary green compacts is formed intermittently.

An inductor is provided, comprising: a first ferrite core piece and a second ferrite core piece, each of which are made of substantially similar materials, exhibit desired electromagnetic properties, and which are fashioned in a substantially similar manner and shape, and wherein each of the first and second ferrite core pieces comprises a substantially planar mating surface, a center post, and a wire core assembly channel, and wherein a first substantially planar mating surface of the first ferrite core piece is adapted to planarly mate with a second substantially planar mating surface of the second ferrite core piece; and a wire core assembly adapted to be substantially self-locating and self-centering about a first or second center post when located in a respective first or second wire core assembly channel.

The present invention provides an inductance coil comprising a magnetic core and a coil, wherein the coil is formed by winding a flat wire, and the flat surface of the wire is perpendicular to the axis around which the coil is wound. The coil is wrapped with an insulating adhesive tape and the tape is wound on the wire around an axis which is substantially in line with the direction along which the wire forming the coil extends, so as to form an isolation layer on the surface of the coil. Additionally, the present invention provides an electromagnetic device including the above inductance coil.

The present invention provides an inductance coil comprising a magnetic core and a coil, wherein the coil is formed by winding a flat wire, and the flat surface of the wire is perpendicular to the axis around which the coil is wound. The coil is wrapped with an insulating adhesive tape and the tape is wound on the wire around an axis which is substantially in line with the direction along which the wire forming the coil extends, so as to form an isolation layer on the surface of the coil. Additionally, the present invention provides an electromagnetic device including the above inductance coil.