Abstract: Disclosed herein is a coil component that includes a coil conductor embedded in the element body; a first bump conductor exposed to the mounting surface and the first and side surfaces; a second bump conductor exposed to the mounting surface and the second and fourth side surfaces; a first dummy bump conductor exposed to the mounting surface and the first and fourth side surfaces; a second dummy bump conductor exposed to the mounting surface and the second and third side surfaces; a first conductive resin layer connecting the first bump conductor and first dummy bump conductor; and a second conductive resin layer connecting the second bump conductor and the second dummy bump conductor. The first and bump conductors and the first and second dummy bump conductors are not covered at least partly with the first conductive resin layer.

Abstract: Disclosed herein is a coil component that includes a conductor layer including a coil pattern and a terminal pattern provided independently of the coil pattern and exposed from the magnetic element body. The terminal pattern includes a linear part having a substantially constant pattern width in a direction perpendicular to the side surface of the magnetic element body, a widened part positioned at one end side in a second direction. The outermost turn of the coil pattern includes a first section provided along the linear part, a second section provided along the widened part, and a fourth section provided along the magnetic element body and positioned on a side opposite to the first section with respect to the second section. The pattern width of the coil pattern is larger in the second sections than in the first and fourth sections.

Abstract: Disclosed herein is a coil component that includes a first conductor layer, one or more third conductor layers, and a second conductor layer stacked one another in this order. One end of the coil pattern in the first conductor layer is connected to first terminal patterns in the second and third conductor layers. The first terminal pattern in the second conductor layer is connected to a first terminal electrode. One end of the coil pattern in the second conductor layer is connected to a second terminal electrode. The width in a radial direction of the first terminal pattern positioned in the third conductor layer is larger than the width in the radial direction of the second terminal pattern positioned in the third conductor layer.

Abstract: A high frequency electronic component includes a switch and a balun. The switch performs switching between a first transmission signal in the form of an unbalanced signal received at a first input port and a second transmission signal in the form of an unbalanced signal received at a second input port, and outputs one of the first and second transmission signals from an output port. The balun converts the transmission signal in the form of an unbalanced signal outputted form the output port of the switch to a transmission signal in the form of a balanced signal, and outputs this signal to a balanced input power amplifier.

Abstract: A high frequency electronic component includes: a first input terminal that receives a first transmission signal in the form of an unbalanced signal; a second input terminal that receives a second transmission signal in the form of a balanced signal; a balun that converts the second transmission signal in the form of a balanced signal received at the second input terminal to a second transmission signal in the form of an unbalanced signal and outputs this signal; and a switch. The switch performs switching between a signal received at a first input port and a signal received at a second input port, and outputs one of the signals from an output port. The first input port receives the first transmission signal received at the first input terminal. The second input port receives the second transmission signal in the form of an unbalanced signal outputted from the balun. The output port is connected to a power amplifier.

Abstract: A UOE steel pipe for use in linepipe having an ultrahigh strength in the circumferential direction of the pipe of at least 750 MPa and at most 900 MPa and having improved toughness in the base metal and weld heat affected zone along with improved joint fracture properties and good circumferential weldability is manufactured from a hot-rolled steel plate having a composition comprising, in mass percent, C: 0.03-0.08%, Mn: 1.70-2.2%, S: at most 0.0020%, Ti: 0.005-0.025%, N: at most 0.0050% and having a carbon equivalent (Ceq) as defined below of at least 0.50% and a weld cracking parameter (Pcm) as defined below of at most 0.24% wherein the temperature at the completion of water cooling after hot rolling is 350° C. or higher: Ceq=C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15, Pcm=C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+B.

Abstract: A method for adjusting the characteristics of multi-layer electronic components according to the present invention includes a determination process S21 for determining the characteristics of a multi-layer electronic component, a calculation process S22 for calculating the required amount of trimming on the basis of the result of determination obtained in the determination process S21, and a trimming process S23 for applying trimming to a trimming pattern provided in the multi-layer electronic component, in accordance with the amount of trimming obtained in the calculation process. The present invention enables performing the determination process S21 and the trimming process S23 in parallel for different multi-layer electronic components instead of performing trimming concurrently with real time determination of characteristics, thus enabling efficiently adjusting the characteristics of plural multi-layer electronic components on aggregate boards.

Abstract: A vibration member of a vibration motor and a method of machining the vibration member to form grooves therein. The bottom of each groove has the shape of an arc of a circle whose center is located on the side of a contact member, e.g., a rotor, so that burrs formed when the vibration member is machined are curved in a direction away from the base portion of the vibration member, i.e., toward the contact member side, and so that the burrs can be easily removed by barrel finishing.