Abstract: A wire-wound type inductor includes a core containing magnetic powder flakes and including a central portion and an outside portion, and a winding coil disposed in the core and wound around the central portion of the core, wherein the core has a coupling structure including first and second bodies, and the first and second bodies contain magnetic powder flakes having shape magnetic anisotropy, and long axes of the magnetic powder flakes are arranged in parallel with a direction in which a magnetic field of the winding coil is formed.

Abstract: A wireless communication antenna includes: a magnetic body including a plurality of bar-shaped unit ribbons arranged in columns, wherein the unit ribbons have shape anisotropy and a radiation direction on a side of the wireless communication antenna; and a solenoid coil including conductive patterns disposed around the magnetic body.

Abstract: An antenna device includes: an antenna wiring including a spiral wiring having a ring shape, wherein the spiral wiring includes a linear part formed as a straight line or a curved line, and a bent part formed as a meandering line.

Abstract: A coil electronic component includes a body, a coil unit disposed in the body and having a multilayer structure. The coil unit includes a first coil pattern forming an upward turn with respect to a bottom surface of the body and a second coil pattern forming a downward turn with respect to the bottom surface of the body. The first and second coil patterns are disposed on at least two layers of the multilayer structure. The component additionally includes a first external electrode and a second external electrode disposed on the bottom surface of the body.

Abstract: A multilayer electronic component includes a body and a coil. The body includes a plurality of sheets each containing magnetic powder particles. The coil includes an uppermost coil pattern disposed on a top surface of an uppermost sheet among the plurality of sheets, a lowermost coil pattern disposed on a bottom surface of a lowermost sheet among the plurality of sheets, and side coil patterns disposed on edges of central sheets disposed between the uppermost sheet and the lowermost sheet in a central portion of the body. The magnetic powder particles have shape anisotropy, and a major axes of the magnetic powder particles are aligned with each other within the body. A multilayer chip antenna can include the multilayer electronic component.

Abstract: A coil electronic component includes a body including ferrite, a coil portion embedded in the body, external electrodes electrically connected to the coil portion, and a magnetic permeability adjusting layer disposed in the body and including ferrite having a Curie temperature lower than that of the ferrite included in the body.

Abstract: A coil component includes a body having a winding type coil and a core in which the winding type coil is embedded, and external electrodes disposed on external surfaces of the body. The core includes first and second cores, and the first and second cores are coupled to each other with a bonding surface interposed therebetween. The bonding surface is formed of a same type of resin as the first and second cores. The first and second cores each include a resin directly covering surfaces of magnetic powder particles, such that adjacent particles are separated only by the resin. A method of manufacturing the coil component includes applying a solvent to dissolve a resin on a bonding surface of the first core, and mounting the second core to the bonding surface having the solvent applied thereto.

Abstract: An antenna device includes: an antenna wiring including a spiral wiring having a ring shape, wherein the spiral wiring includes a linear part formed as a straight line or a curved line, and a bent part formed as a meandering line.

Abstract: A hybrid coil component in which a magnetic core generally included in a wire-wound type inductor and a core included in a multilayer type inductor are combined with each other. A winding coil may be wound around a magnetic core manufactured in advance and an encapsulant having a stacked structure of a plurality of magnetic sheets may encapsulate the winding coil wound around the magnetic core. In this case, a magnetic flux generated in the winding coil is arranged to be parallel to long axes of magnetic particles contained in the magnetic core and the encapsulant.

Abstract: A wire-wound type inductor includes a core containing magnetic powder flakes and including a central portion and an outside portion, and a winding coil disposed in the core and wound around the central portion of the core, wherein the core has a coupling structure including first and second bodies, and the first and second bodies contain magnetic powder flakes having shape magnetic anisotropy, and long axes of the magnetic powder flakes are arranged in parallel with a direction in which a magnetic field of the winding coil is formed.

Abstract: A magnetic powder includes an insulating layer formed of a polymer material which is directly coated on a powder particle core having magnetic properties. An inductor containing the same is also provided. The magnetic powder does not include a separate inorganic insulating layer between the powder particle core and the insulating layer, the insulating layer has a relatively uniform thickness, and a body formed using the magnetic powder does not contain a separate binder or curing agent, such that a high permeability and an excellent Q factor may be implemented.

Abstract: A wireless communication antenna includes: a magnetic body including a plurality of bar-shaped unit ribbons arranged in columns, wherein the unit ribbons have shape anisotropy and a radiation direction on a side of the wireless communication antenna; and a solenoid coil including conductive patterns disposed around the magnetic body.

Abstract: A multilayer electronic component includes a body and a coil. The body includes a plurality of sheets each containing magnetic powder particles. The coil includes an uppermost coil pattern disposed on a top surface of an uppermost sheet among the plurality of sheets, a lowermost coil pattern disposed on a bottom surface of a lowermost sheet among the plurality of sheets, and side coil patterns disposed on edges of central sheets disposed between the uppermost sheet and the lowermost sheet in a central portion of the body. The magnetic powder particles have shape anisotropy, and a major axes of the magnetic powder particles are aligned with each other within the body. A multilayer chip antenna can include the multilayer electronic component.

Abstract: A wire wound inductor includes a winding coil, a magnetic core disposed in a central portion of the winding coil, and a body part filling a space around the winding coil and the magnetic core. The magnetic core has different characteristics from those of the body part, for example a higher permeability and higher magnetic flux density. In a method of manufacturing a wire wound inductor, a magnetic core is inserted in a central portion of a winding coil, wherein the magnetic core has different characteristics from those of a magnetic metal powder that is filled on the winding coil and the magnetic core. In one example, the filled magnetic metal powder is compressed at a pressure lower than a high pressure applied in the formation of the magnetic core.

Abstract: A flow path switching valve includes a tube body including one or more inlets opened to communicate with a fluid supplying source and supplying fluid into an inside of the tube body, outlets opened at opposite sides to the respective inlets and selectively alternately discharging fluid from the inside of the tube body, drains opened at opposite ends and discharging operating fluid introduced through the outlet, and seat units respectively protrude on an inner circumference of the tube body between the inlet(s), outlets and drains. An operating rod, coaxially mounted in the tube body, includes spaced apart projection units and is connected to an operating unit at one end so as to reciprocate axially within the tube body responsive to the operating unit. Valve bodies are movably disposed on an outer circumference of the operating rod and are arranged between the respective projection units to face respective seat units.

Abstract: A flow path switching valve includes a tube body including one or more inlets opened to communicate with a fluid supplying source and supplying fluid into an inside of the tube body, outlets opened at opposite sides to the respective inlets and selectively alternately discharging fluid from the inside of the tube body, drains opened at opposite ends and discharging operating fluid introduced through the outlet, and seat units respectively protrude on an inner circumference of the tube body between the inlet(s), outlets and drains. An operating rod, coaxially mounted in the tube body, includes spaced apart projection units and is connected to an operating unit at one end so as to reciprocate axially within the tube body responsive to the operating unit. Valve bodies are movably disposed on an outer circumference of the operating rod and are arranged between the respective projection units to face respective seat units.

Abstract: Device and method for controlling supply of current and static capacitance to compressors, the device including a control signal providing part for providing control signals for controlling currents and static capacitances to be supplied to main windings and supplementary winding of the compressors, a current controlling part for limiting a current of the utility voltage supply in supplying the current to the main windings during starting in response to the control signals and releasing the limiting of the current in the supplying to the main windings after the starting, and a static capacitance controlling part for supplying respective starting static capacitances to the supplementary windings in a sequence in starting, and respective operative static capacitances to the supplementary windings in starting, and supplying only the respective operative static capacitances to the supplementary windings after the starting, in response to the control signals.

Abstract: Device and method for controlling supply of current and static capacitance to a compressor, the device including a control signal generating part for providing control signals for controlling a current and a static capacitance to a main winding and a supplementary winding of the compressor, a current controlling part for limiting the current of the utility voltage to the main winding in the starting and supplying the current to the main winding regularly after the starting in response to the control signal, and a static capacitance controlling part for supplying both a starting static capacitance and an operative static capacitance to a supplementary winding in starting, and for supplying only the operative static capacitance after the starting, in response to the control signal.

Abstract: A device and method for controlling a supply of a current and a static capacitance to a compressor are disclosed. The device includes a control signal generating part for controlling a current and a static capacitance provided to the compressor, such that the current and static capacitance differ in a starting period of the compressor versus an operative period of the compressor, after the starting period.