Abstract: The present invention provides a layer forming composition used to form an adhesion layer that brings a base material and a curable composition into tight contact with each other, comprising a surfactant (D) whose HLB value is 1 to 5.

Abstract: An antenna device includes a ground portion including a linear portion connecting a first point and a second point to each other along a first direction parallel to a surface of a substrate, on one side in a second direction orthogonal to the first direction, a power feeding portion provided in a first range including the first point, and an element portion configured to receive power from the power feeding portion and formed in a conductor portion of the substrate that is insulated from the ground portion in a state in which the element portion protrudes from the first range toward the other side in the second direction. The element portion includes a first element portion protruding in the first range toward the other side in the second direction, and a second element portion extending along the first direction from the first element portion toward the second point.

Abstract: Disclosed herein is an antenna device that includes a substrate; and a first coil pattern, a second coil pattern, and a first capacitor which are provided on a surface of the substrate. An opening region of the first coil pattern is smaller in area than an opening region of the second coil pattern. The first coil pattern is disposed so as to overlap the opening region of the second coil pattern. One of the first and second coil patterns is connected to the first capacitor to constitute a closed circuit.

Abstract: Disclosed herein is a coil component that includes a first coil pattern, a second coil pattern connected to the first coil pattern, and a magnetic member covering the first and second coil patterns in an axial direction of the first and second coil patterns. The first and second coil patterns are arranged side by side in a first direction perpendicular to the axial direction. The first coil pattern has a first protrusion protruding in a second direction perpendicular to the axial direction and the first direction from a first outer peripheral end of the magnetic member in the second direction.

Abstract: Disclosed herein is a coil component that includes a substrate having a first surface, and first and second coil patterns coaxially formed on the first surface of the substrate and electrically isolated from each other. The first coil pattern has a plurality of turns including a first turn and a second turn. A predetermined turn of the second coil pattern is disposed between the first and second turns of the first coil pattern.

Abstract: Disclosed herein is a coil component that includes a substrate, a coil pattern formed on one surface of the substrate, and a magnetic layer comprising a composite material obtained by dispersing magnetic particles in resin and formed on the one surface of the substrate so as to cover the coil pattern. The coil pattern has a flat shape in which a thickness thereof is smaller than a radial width. Each of the magnetic particles has a flat shape in which a thickness thereof in a direction perpendicular to the one surface of the substrate is smaller than a diameter in a direction parallel to the one surface of the substrate. Some of the magnetic particles exist within a height range of the coil pattern with respect to the one surface of the substrate.

Abstract: An antenna device includes a ground portion including a linear portion connecting a first point and a second point to each other along a first direction parallel to a surface of a substrate, on one side in a second direction orthogonal to the first direction, a power feeding portion provided in a first range including the first point, and an element portion configured to receive power from the power feeding portion and formed in a conductor portion of the substrate that is insulated from the ground portion in a state in which the element portion protrudes from the first range toward the other side in the second direction. The element portion includes a first element portion protruding in the first range toward the other side in the second direction, and a second element portion extending along the first direction from the first element portion toward the second point.

Abstract: Disclosed herein is an antenna device that includes a substrate, a conductor pattern formed on the substrate, and a magnetic sheet formed on the substrate. The conductor pattern includes a spiral or loop-shaped antenna coil and a spiral or loop-shaped coupling coil connected to the antenna coil and having a diameter smaller than that of the antenna coil. The antenna coil overlaps the magnetic sheet. The magnetic sheet has a first opening at a position overlapping the coupling coil such that an inner diameter area of the coupling coil completely overlaps the first opening in a plan view.

Abstract: Disclosed herein is an antenna device that includes a substrate; and a first coil pattern, a second coil pattern, and a first capacitor which are provided on a surface of the substrate. An opening region of the first coil pattern is smaller in area than an opening region of the second coil pattern. The first coil pattern is disposed so as to overlap the opening region of the second coil pattern. One of the first and second coil patterns is connected to the first capacitor to constitute a closed circuit.

Abstract: Disclosed herein is a coil component that includes a first coil pattern, a second coil pattern connected to the first coil pattern, and a magnetic member covering the first and second coil patterns in an axial direction of the first and second coil patterns. The first and second coil patterns are arranged side by side in a first direction perpendicular to the axial direction. The first coil pattern has a first protrusion protruding in a second direction perpendicular to the axial direction and the first direction from a first outer peripheral end of the magnetic member in the second direction.

Abstract: Disclosed herein is an antenna device that includes a substrate; a conductor pattern formed on the substrate and including a spiral or loop-shaped antenna coil, a spiral or loop-shaped coupling coil being connected to the antenna coil and having a diameter smaller than that of the antenna coil, and a spiral-shaped booster coil at least partially overlapping the antenna coil through the substrate without being connected thereto; and a resonance capacitor connected to the booster coil. The number of turns of the booster coil is larger than that of the antenna coil.

Abstract: Disclosed herein is a coil component that includes a substrate, a coil pattern formed on one surface of the substrate, and a magnetic layer comprising a composite material obtained by dispersing magnetic particles in resin and formed on the one surface of the substrate so as to cover the coil pattern. The coil pattern has a flat shape in which a thickness thereof is smaller than a radial width. Each of the magnetic particles has a flat shape in which a thickness thereof in a direction perpendicular to the one surface of the substrate is smaller than a diameter in a direction parallel to the one surface of the substrate. Some of the magnetic particles exist within a height range of the coil pattern with respect to the one surface of the substrate.

Abstract: Disclosed herein is a coil component that includes a substrate having a first surface, and first and second coil patterns coaxially formed on the first surface of the substrate and electrically isolated from each other. The first coil pattern has a plurality of turns including a first turn and a second turn. A predetermined turn of the second coil pattern is disposed between the first and second turns of the first coil pattern.

Abstract: Disclosed herein is an antenna device that includes a substrate, a conductor pattern formed on the substrate, and a magnetic sheet formed on the substrate. The conductor pattern includes a spiral or loop-shaped antenna coil and a spiral or loop-shaped coupling coil connected to the antenna coil and having a diameter smaller than that of the antenna coil. The antenna coil overlaps the magnetic sheet. The magnetic sheet has a first opening at a position overlapping the coupling coil such that an inner diameter area of the coupling coil completely overlaps the first opening in a plan view.

Abstract: Disclosed herein is an antenna device that includes a substrate; a conductor pattern formed on the substrate and including a spiral or loop-shaped antenna coil, a spiral or loop-shaped coupling coil being connected to the antenna coil and having a diameter smaller than that of the antenna coil, and a spiral-shaped booster coil at least partially overlapping the antenna coil through the substrate without being connected thereto; and a resonance capacitor connected to the booster coil. The number of turns of the booster coil is larger than that of the antenna coil.

Abstract: An antenna device includes an antenna element 10 and a printed circuit board 20 on which the antenna element 10 is mounted. The antenna element 10 includes a base 11 which is made of a dielectric material and a radiation conductor formed on at least one surface of the base 11. The printed circuit board 20 includes ground clearance region 23a having substantially a rectangular shape and having one side contacting an edge of the printed circuit board and other three sides surrounded by an edge line of a ground pattern, an antenna mounting region 27 provided within the ground clearance region 23a, and at least one frequency adjusting element 30 provided within the ground clearance region 27. The frequency adjusting element 30 is provided on the far side of the antenna mounting region 27 as viewed from an edge 20e of the printed circuit board 20.

Abstract: A radiation electrode 132 is printed on the upper surface of the dielectric body, side surface thereof, and bottom surface thereof in a folded configuration. A feeding electrode 130 and ground electrode 134 are printed on the bottom surface of the antenna elements 124. The feeding electrode 130 and radiation electrode 132 on the upper surface are opposed to each other as parallel planes. The ground electrode 134 and radiation electrode 132 are also opposite to each other as parallel planes. No electrode is formed on one of the side surfaces of the antenna element 124 that is opposed to the side surface at the side of which the radiation electrode 132 is folded.

Abstract: An antenna device includes an antenna element and a printed circuit board on which the antenna element is mounted. The antenna element includes a base, a radiation conductor formed on an upper surface of the substrate and one end of the radiation conductor being an open end, a plurality of terminal electrodes formed on a bottom surface of the substrate, and a loop conductor of a substantially U-shape. The loop conductor is arranged to face one of the terminal electrodes via a gap having a predetermined width. An antenna mounting region is provided on a upper surface of the printed circuit board to be adjacent to an edge of a long side of the printed circuit board. A feed line is led in the antenna mounting region along the edge. One and the other end of the loop conductor are connected to the feed line and a ground pattern, respectively.

Abstract: An antenna device includes an antenna element 10 and a printed circuit board 20 on which the antenna element 10 is mounted. The antenna element 10 includes a base 11 which is made of a dielectric material and a radiation conductor formed on at least one surface of the base 11. The printed circuit board 20 includes ground clearance region 23a having substantially a rectangular shape and having one side contacting an edge of the printed circuit board and other three sides surrounded by an edge line of a ground pattern, an antenna mounting region 27 provided within the ground clearance region 23a, and at least one frequency adjusting element 30 provided within the ground clearance region 27. The frequency adjusting element 30 is provided on the far side of the antenna mounting region 27 as viewed from an edge 20e of the printed circuit board 20.

Abstract: A surface-mounted antenna has a base having a substantially rectangular parallelepiped shape, an antenna element formed on the surface of the base and having a first radiation electrode subjected to direct power supply, and an antenna element formed on the surface of the base and having a radiation electrode subjected to capacitive coupling power supply. With this, the smaller surface-mounted antenna of a combo antenna type can be provided.