Abstract: A device is provided that includes a core having a first end and a second end, and first and second wires wound around the core so as to cross each other on the core to form a cross point. The a winding structure of an ith turn of the first and second wires counting from the cross point toward the first end, and a winding structure of an ith turn of the first and second wires counting from the cross point toward the second end, are substantially symmetrical about the cross point.

Abstract: Disclosed herein is a common mode filter that comprises a drum core including a winding core portion and a pair of flange portions provided at both ends of the winding core portion, and first and second wires wound around the winding core portion so as to form a pair-wire for each turn. The first and second wires includes one or a plurality of sparsely-wound portions in which the first and second wires are wound with adjacent pair-wires spaced from each other, and one or a plurality of closely-wound portions in which the first and second wires are wound with adjacent pair-wires in close contact with each other.

Abstract: A spark plug includes a ground electrode and a center electrode, at least one of which includes an electrode body, an electrode tip, and a weld part formed therebetween. The weld part has an orthogonal projection on a virtual plane perpendicular to a layering direction of the electrode body and the electrode tip. The orthogonal projection includes projecting portions extending in a specific direction. The weld part satisfies a condition that a first line segment is shorter than a second line segment, wherein: the first line segment is a virtual line segment connecting peaks of adjacent two projecting portions; and the second line segment is a virtual line segment that is perpendicular to the first line segment and connects the first line segment to an outer periphery of the weld part at a point farthest from the first line segment.

Abstract: A common mode filter includes a core, and first and second wires wound around the core. Each of the first and second wires includes at least i?1th turn, ith turn, and i+1th turn. The ith turn of the first wire intersects with the ith turn of the second wire without intersecting each of the i?1th and i+1th turns of the second wire.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects a liquid, a discharge portion which discharges a waste liquid discharged from the liquid ejecting head, and a mounting unit which is provided with the discharge portion and in which is mounted a waste liquid container capable of storing the waste liquid which is discharged from the discharge portion, in which the mounting unit includes a liquid holding portion capable of holding the waste liquid in a periphery of the discharge portion.

Abstract: Disclosed herein is a differential mode filter including a core including a winding core part, a first wire wound around the winding core part in a first winding direction, and a second wire wound around the winding core part in a second winding direction opposite to the first winding direction. The winding core part includes first and second winding surfaces. A first crossing angle between the first and second wires that cross a plurality of times on the first winding surface is smaller than that a second crossing angle between the first and second wires that cross a plurality of times on the second winding surface.

Abstract: Disclosed herein is a differential mode filter that includes first and second terminal electrodes provided on a first flange part of a core, and first and second wires wound around a winding core part of the core in an opposite direction to each other and connected respectively to the first and second terminal electrodes. The first and second wires cross each other on the winding core part to form a plurality of crossing portions that include first, second, and third crossing portions that are first, second, and third occurrences counting from the one end of the first and second wires, respectively. A first crossing angle between the first and second wires at the first crossing portion is larger than at least one of second and third crossing angles between the first and second wires at the second and third portions, respectively.

Abstract: A spark plug includes a ground electrode and a center electrode, at least one of which includes an electrode body, an electrode tip, and a weld part formed therebetween. The weld part has an orthogonal projection on a virtual plane perpendicular to a layering direction of the electrode body and the electrode tip. The orthogonal projection includes projecting portions extending in a specific direction. The weld part satisfies a condition that a first line segment is shorter than a second line segment, wherein: the first line segment is a virtual line segment connecting peaks of adjacent two projecting portions; and the second line segment is a virtual line segment that is perpendicular to the first line segment and connects the first line segment to an outer periphery of the weld part at a point farthest from the first line segment.

Abstract: Disclosed herein is a common mode filter that includes first and second terminal electrodes provided on the first flange part, third and fourth terminal electrodes provided on the second flange part, a first wire wound around the winding core part and having one end connected to the first terminal electrode and other end connected to the third terminal electrode, and a second wire wound around the winding core part and having one end connected to the second terminal electrode and other end connected to the fourth terminal electrode. The winding core part includes a first winding region, a second winding region, and a third winding region positioned between the first and second winding regions in the axial direction. The first and second wires are bifilar-wound in the first and second winding regions and layer-wound in the third winding region.

Abstract: Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. A predetermined one turn of the first wire crosses a predetermined one turn of the second wire a plurality of times.

Abstract: Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block on one endmost side in an axial direction of the winding core part, a second winding block on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks. The second winding block is a winding block at an odd-numbered position counted from the first winding block. The first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks.

Abstract: Disclosed herein is a common mode filter that includes: a winding core part including first and second winding areas and a third winding area positioned between the first and second winding areas; and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block wound in the first winding area and a second winding block wound in the second winding area. The first and second wires cross each other in the third winding area. Each of the first and second winding blocks has first and second winding layers. The difference in a number of turns between the first winding layer and the second winding layer is larger in the first winding block than in the second winding block.

Abstract: A coil device having excellent mode conversion property which can be suitably used as a common mode filter. The coil device has a core, a first collar part and a second collar part provided to both sides of the core in axis direction, a coil part at least having a first wire and a second wire which are wound around the core, and terminals provided to the collar parts. One lead part of the wire heading towards the coil part from the terminals, and one lead part of the wire heading towards the coil part from the second terminal are placed in close proximity at least between an inner face of the collar part and the coil part.

Abstract: Disclosed herein is an electronic circuit module that includes a circuit board and a common mode filter mounted on the circuit board. The common mode filter includes first and second terminal electrodes constituting a first pair of terminal electrodes and third and fourth electrodes constituting a second pair of terminal electrodes. The circuit board includes: a first wiring layer having first, second, third, and fourth land patterns connected to the first, second, third, and fourth terminal electrodes, respectively, and first, second, third, and fourth wiring patterns connected to the first, second, third, and fourth land patterns, respectively; and a second wiring layer having a ground pattern that overlaps the first, second, third, and fourth wiring patterns without overlapping the first and second land patterns.

Abstract: A spark plug includes a tubular metal shell that includes a metal-shell step portion extending in an inner circumferential direction, an insulator that is inserted in the metal shell, that includes a facing portion that faces the metal-shell step portion with an annular packing interposed therebetween, a center electrode that extends in the axial direction, that has a flange portion extending in an outer circumferential direction, and a seal body seals the insulator and the center electrode. In a section that contains the axial line and that is along the axial line, a distance L along the axial line from a rear end of the facing portion of the insulator to a rear end of a portion at which the flange portion is in contact with the insulator satisfies L?1.1 (mm).

Abstract: Disclosed is a spark plug capable of preventing electrode wear while ensuring impact resistance. In the spark plug, a conductive seal is arranged between a rear end portion of a center electrode and a resistor within an axial hole of an insulator. The conductive seal includes a side-surface seal layer brought into contact with the whole of a side surface of the rear end portion of the center electrode and having a thickness of 10 ?m or larger in an axis perpendicular direction. Assuming that a projection area is defined by projecting the center electrode onto the axial hole in the axis perpendicular direction around a center axis of the spark plug, a contact surface of the resistor brought into contact with the axial hole overlaps at last a part of the projection area.

Abstract: An imaging device includes a photoelectric converter including a pixel electrode, a counter electrode, and a photoelectric conversion layer between the pixel electrode and the counter electrode, the photoelectric conversion layer converting incident light into an electric charge; and a voltage application circuit that applies a first voltage between the pixel electrode and the counter electrode in a first frame and that applies a second voltage between the pixel electrode and the counter electrode in a second frame different from the first frame, the first voltage being a constant voltage, the second voltage being a pulse-shaped voltage.

Abstract: Disclosed herein is a common mode filter that includes first and second terminal electrodes provided on the first flange part, third and fourth terminal electrodes provided on the second flange part, a first wire wound around the winding core part and having one end connected to the first terminal electrode and other end connected to the third terminal electrode, and a second wire wound around the winding core part and having one end connected to the second terminal electrode and other end connected to the fourth terminal electrode. The winding core part includes a first winding region, a second winding region, and a third winding region positioned between the first and second winding regions in the axial direction. The first and second wires are bifilar-wound in the first and second winding regions and layer-wound in the third winding region.