Abstract: A filter for filtering nucleated cells that includes a body containing at least either a metal or a metal oxide as its main component; and plural through holes, each of which have a shape other than a square shape, formed therein. An arithmetic average roughness of a first side of the filter part is smaller than a size of a nucleus of the nucleated cells to be filtered.

Abstract: A core body thermometer includes a substrate, a heat receiving terminal with which heat from a subject is received and which divides the heat into first heat flow and second heat flow and causes the first heat flow and the second heat flow to flow out, a first heat flow measurement system that measures the first heat flow using a first input-side temperature sensor and a first output-side temperature sensor, a second heat flow measurement system that measures the second heat flow using a second input-side temperature sensor and a second output-side temperature sensor, a first thermal resistance body provided between the heat receiving terminal and the first input-side temperature sensor, and a second thermal resistance body provided between the heat receiving terminal and the second input-side temperature sensor.

Abstract: A resonator includes a base, at least one vibration arm, a frame, and a holding arm. The vibration arm includes a piezoelectric film, an upper electrode, and a lower electrode. The inequality Fs/Fm<1.9 or the inequality 2.1<Fs/Fm holds, where Fm is a frequency of a main or primary mode in the vibration arm, and Fs is a frequency of a spurious mode in the holding arm.

Abstract: A multilayer coil component includes an insulator portion, a coil embedded in the insulator portion and including a plurality of coil conductor layers electrically connected together, and an outer electrode disposed on a surface of the insulator portion and electrically connected to the coil. The coil conductor layers have a thickness of 30 ?m to 60 ?m. The coil conductor layers are rectangular and include a corner portion with a radius of curvature of 0.08 mm to 0.24 mm.

Abstract: A multilayer coil component includes an insulator portion, a coil embedded in the insulator portion and including a plurality of coil conductor layers electrically connected together, and an outer electrode disposed on a surface of the insulator portion and electrically connected to the coil. At least one of the coil conductor layers includes an extended portion and a winding portion, and is connected to the outer electrode via the extended portion. The area S of an exposed portion of the extended portion exposed from the insulator portion is 0.018 mm2 or more.

Abstract: An electronic component includes a composite body made of a composite material of resin and magnetic metal particles, an inner electrode which is provided in the composite body and which has an end surface exposed from an outer surface of the composite body, and a metal film provided on the outer surface of the composite body and on the end surface of the inner electrode. The metal film includes a first region provided on the end surface of the inner electrode and a second region which is in contact with the magnetic metal particles exposed at the outer surface of the composite body and which is provided on the outer surface of the composite body. The thickness of the first region is less than the thickness of the second region.

Abstract: A circuit includes a bias-tee circuit including a signal line, a constant-voltage power supply, an inductor, and a capacitor. The signal line includes a first signal line and a second signal line. The inductor includes a first inductor and a second inductor. The first inductor is connected to the first signal line and the constant-voltage power supply. The second inductor is connected to the second signal line and the constant-voltage power supply. The shortest distance between the first inductor and the second inductor is not less than 0.05 mm and not more than 1 mm (i.e., from 0.05 mm to 1 mm). The direction of a coil axis of the first inductor and the direction of a coil axis of the second inductor are parallel with a mounting surface and form an angle of approximately 90 degrees.

Abstract: A ceramic electronic component that includes an electronic component body having a superficial base ceramic layer and a surface electrode on a surface of the electronic component body. The surface electrode includes a first sintered layer on the base ceramic layer, a second sintered layer on the first sintered layer, and a plating layer on the second sintered layer. A peripheral section of the first sintered layer has an exposed surface which is not overlaid with the second sintered layer or the plating layer.

Abstract: A vibration device includes a first vibration plate having a length direction, the first vibration plate including a first end portion at one end in the length direction and a second end portion at another end in the length direction, a first piezoelectric element provided on the first vibration plate, a first conductive wiring line joined to the first piezoelectric element at a position closer to the first end portion in the length direction than a center of the first vibration plate, a first fixed component connected to the first conductive wiring line, and a case component to which the first fixed component is fixed. The second end portion is a free end, and the first conductive wiring line includes a bent portion.

Abstract: An acoustic resonator is fabricated by bonding a first piezoelectric plate to a substrate and spans locations for a first and second cavity in the substrate. A top surface of the first plate is planarized to a first thickness. A bonding layer is formed on the first piezoelectric plate and spans the first and second cavity locations. A second piezoelectric plate is bonded to the bonding layer and spans the first and second cavity locations. A top surface of the second plate is planarized to a second thickness. A portion of the second piezoelectric plate spanning the second cavity location is etched away to form a first membrane over the first cavity location and a second membrane over the second cavity location. Interdigital transducers are formed on the first and second membranes over the first and second cavity location to form a first and second resonator on the same die.

Abstract: An inductor component includes a main body, a first inductor wiring located inside the main body and extending on a virtual plane, and a second inductor wiring located inside the main body and extending in parallel to the virtual plane. The inductor component includes a third inductor wiring located between the first inductor wiring and the second inductor wiring inside the main body and extending in parallel to the virtual plane. The inductor component includes vertical wirings passing through the inside of the main body from each of the first to third inductor wirings to a surface of the main body in a direction perpendicular to the virtual plane. The third inductor wiring is a low-resistance inductor wiring having a DC electrical resistance smaller than those of the first inductor wiring and the second inductor wiring.

Abstract: An inductor component includes an element body, a coil provided in the element body, and an outer electrode provided to the element body and electrically connected to the coil. The outer electrode includes an underlying layer embedded in the element body in which part of the underlying layer protrudes from a surface of the element body, and a coating film that covers a portion of the underlying layer exposed at the element body.

Abstract: A radio-frequency module includes: a module substrate; multiple external connection terminals that are arranged on a main surface of the module substrate; an integrated circuit that is arranged on a main surface of the module substrate; a shield layer that is arranged above the main surface of the integrated circuit; and a metal member that is arranged between the main surface of the integrated circuit and the shield layer. The integrated circuit includes transistors arranged on the main surface and constituting a power amplifier and via conductors connecting the transistors to the metal member. The metal member at least partially overlaps the via conductors and at least partially overlaps the shield layer in a plan view of the module substrate.

Abstract: An inductor component includes an element body, a coil inside the element body and spirally wound along a coil axial direction, a first outer electrode electrically connected to one end portion of the coil and exposed on a surface of the element body, and a second outer electrode electrically connected to the other end portion of the coil and exposed on the surface of the element body. The element body includes an insulator. The coil is formed by electrically connecting a plurality of coil wires laminated in the coil axial direction. The coil wires include a first coil wire electrically connected to the first outer electrode with at least one first extended wire interposed therebetween, and a dimension of each of the at least one first extended wire in the coil axial direction is smaller than a dimension of the first coil wire in the coil axial direction.

Abstract: A collector layer, a base layer, and an emitter layer that are disposed on a substrate form a bipolar transistor. An emitter electrode is in ohmic contact with the emitter layer. The emitter layer has a shape that is long in one direction in plan view. A difference in dimension with respect to a longitudinal direction of the emitter layer between the emitter layer and an ohmic contact interface at which the emitter layer and the emitter electrode are in ohmic contact with each other is larger than a difference in dimension with respect to a width direction of the emitter layer between the emitter layer and the ohmic contact interface.

Abstract: A radio frequency circuit includes a carrier amplifier, a peaking amplifier, an input-side coil, an output-side coil, harmonic reduction circuits, and a phase shift line. One end of the input-side coil is connected to the carrier amplifier, and the other end thereof is connected to the peaking amplifier. In the harmonic reduction circuit, an inductor and a capacitor that are connected in series are disposed in series on a path connecting the carrier amplifier and the ground. The harmonic reduction circuit has an inductor and a capacitor that are connected in series and an inductor connected in parallel to the capacitor. The inductor and the capacitor are disposed in series on a path connecting the peaking amplifier and the ground.

Abstract: An antenna module including dielectric electrodes whose normal directions are different from each other, emitting elements and a ground electrode disposed on the dielectric substrate, and emitting elements disposed on the dielectric substrate. The emitting element is capable of emitting radio waves of a first frequency band. The emitting element is disposed adjacent to the emitting element and is capable of emitting radio waves of a second frequency band higher than the first frequency band. On the dielectric substrate, the emitting element is disposed at a position that is closer to the dielectric substrate than the emitting element is. The distance from the center of the emitting element to an end surface of the ground electrode that is closer to the dielectric substrate is shorter than the distance from the center of the emitting element to an end surface of the ground electrode that is farther from the dielectric substrate.

Abstract: A wireless power transfer system includes a power transmission device and a power reception device. The power transmission device includes a power transmission circuit and a power transmission coil. The power reception device includes a power reception circuit and a power reception coil. The power reception device is arranged relative to the power transmission device such that the power reception coil electromagnetically couples with the power transmission coil. The power transmission circuit and the power reception circuit each set a power exclusive-use period and a signal insertion period. The power exclusive-use period is set as a main part of a repetition cycle of power transmission and reception, during which an interrupt signal for power transmission authentication is not used. The signal insertion period is set as a localized part of the repetition cycle of power transmission and reception, during which the interrupt signal for power transmission authentication is inserted.

Abstract: A radio frequency module includes a filter having plural serial arm resonators and one or more parallel arm resonators, an inductor connected to a second path connecting an input/output terminal to the filter, and a parallel arm circuit connected between the ground and a first parallel arm resonator among the one or more parallel arm resonators. The parallel arm circuit includes inductors and a switch having a common terminal, selection terminals. The selection terminal is connected to a first end of the inductor. The selection terminal is connected to a first end of the inductor. The common terminal is connected to the first parallel arm resonator. The inductor and the inductor are connected, at their second ends, to the ground.

Abstract: A switching power supply device includes a circuit board on which plural inductor windings are formed, and a common magnetic body incorporated into the circuit board from both sides. The circuit board has a common wiring line electrically connected to one end of each of the plural inductor windings in common. The common magnetic body has inner legs inserted through inside the plural inductor windings and an outer leg inserted through outside the plural inductor windings. A smoothing capacitor connected between a common wiring line and ground wiring is mounted on the circuit board to constitute a smoothing filter with the inductance of the common wiring line and the smoothing capacitor. The plural inductor windings are magnetically coupled to each other, and the common wiring line and the plural inductor windings are substantially not magnetically coupled.