Abstract: A magnetic shielding sheet and an antenna device including a magnetic shielding sheet. The magnetic shielding sheet includes a first hole disposed in a position corresponding to a position of a second hole formed in a substrate to which the magnetic shielding sheet is attached, and a groove extending from the first hole to an edge of the magnetic shielding sheet.

Abstract: A coil module includes a coil part including a coil substrate and a coil pattern formed on the coil substrate; and a magnetic body part comprising, in a first part of the coil module, a first thickness which overlaps the coil substrate and comprising, in a second part of the coil module, a second thickness, thicker than the first thickness, which does not overlap the coil substrate.

Abstract: A wireless power charging device includes a coil configured to transmit or receive a wireless power signal; an electromagnetic wave shielding sheet disposed proximate the coil; and, a heat radiation layer disposed on the electromagnetic wave shielding sheet.

Abstract: A sheet is provided to shield against electromagnetic waves. The sheet includes a magnetic layer, and a heat radiation coating layer coating at least a portion of a surface of the magnetic layer.

Abstract: A device for transmitting data includes a transmitting coil configured to receive and transmit the data signal and to generate a magnetic field, and a magnetic material provided on one surface of the transmitting coil. A ratio of a residual magnetic flux density and a saturation magnetic flux density of the magnetic material is greater in a direction that the material is magnetized than in a direction the material is not magnetized.

Abstract: A device for transmitting data includes a transmitting coil configured to receive and transmit the data signal and to generate a magnetic field, and a magnetic material provided on one surface of the transmitting coil. A ratio of a residual magnetic flux density and a saturation magnetic flux density of the magnetic material is greater in a direction that the material is magnetized than in a direction the material is not magnetized.

Abstract: A magnetic field shielding sheet and a wireless power charging apparatus including the same are provided. A magnetic field shielding sheet includes a magnetic field shielding area including magnetic field shielding layers disposed on a surface of a coil part configured to provide a wireless power charging function to shield a magnetic field generated from the coil part and an adhesive layer bonding the magnetic field shielding layers to each other, and heat radiation fillers disposed within the adhesive layer.

Abstract: A magnetic field shielding sheet and a wireless power charging apparatus including the same are provided. A magnetic field shielding sheet includes a magnetic field shielding area including magnetic field shielding layers disposed on a surface of a coil part configured to provide a wireless power charging function to shield a magnetic field generated from the coil part and an adhesive layer bonding the magnetic field shielding layers to each other, and heat radiation fillers disposed within the adhesive layer.

Abstract: A wireless power charging device includes a coil configured to transmit or receive a wireless power signal; an electromagnetic wave shielding sheet disposed proximate the coil; and, a heat radiation layer disposed on the electromagnetic wave shielding sheet.

Abstract: A sheet is provided to shield against electromagnetic waves. The sheet includes a magnetic layer, and a heat radiation coating layer coating at least a portion of a surface of the magnetic layer.

Abstract: There are provided a spindle motor and an assembling method of a sleeve and a base in the same. The spindle motor includes: a shaft; a sleeve formed in a hollow cylindrical shape so as to rotatably support the shaft and having a plated layer coated on an outer peripheral surface thereof; and a base including a support part having a hollow part formed at the center thereof so that the sleeve is inserted thereinto and fixed thereto and coated with a plated layer, wherein an inner peripheral surface of the base and an outer peripheral surface of the sleeve are bonded to each other by an adhesive.