Abstract: A coil component is capable of suppressing permeation of liquid or gas into a magnetic portion and increasing mechanical strength of the magnetic portion. A coil component includes a magnetic portion including soft magnetic metal particles having an insulating oxide layer on a surface thereof, with the soft magnetic metal particles being bonded to each other with the insulating oxide layer interposed therebetween; and a coil portion provided inside or on the surface of the magnetic portion. A mixture containing a resin and inorganic particles is disposed between the soft magnetic metal particles.

Abstract: A cover for covering an oral device that includes a first sheet member made of a first resin, and a second sheet member made of a second resin and facing the first sheet member, wherein when a first direction is a direction along a surface of the first sheet member and a second direction is a direction along the surface of the first sheet member and orthogonal to the first direction, the first sheet member and the second sheet member are joined to each other in a bag shape so as to define an opening at a first side in the first direction. A protruding portion protrudes from the second sheet member and past an outer edge of the first sheet member at the opening in the first direction.

Abstract: In a coil device, a first coil includes a common terminal side first coil conductor connected to a ground terminal, an intermediate first coil conductor, and an input/output terminal side first coil conductor connected to a first input/output terminal, and a second coil includes a common terminal side second coil conductor connected to the ground terminal, an intermediate second coil conductor, and an input/output terminal side second coil conductor connected to a second input/output terminal. The input/output terminal side first coil conductor is located between the intermediate second coil conductor and the input/output terminal side second coil conductor, and the input/output terminal side second coil conductor is located between the intermediate first coil conductor and the input/output terminal side first coil conductor.

Abstract: A battery includes a positive electrode, a negative electrode, and an electrolyte, and the positive electrode includes a substituted barium titanate.

Abstract: A pump device includes a piezoelectric pump, a piezoelectric pump, and a driving circuit. The piezoelectric pump is driven at a first frequency when singly driven. The piezoelectric pump is driven at a second frequency when singly driven. The driving circuit drives the piezoelectric pump and the piezoelectric pump at the same driving frequency.

Abstract: A vibrating device includes a translucent cover, an ejector to eject a liquid onto the surface of the translucent cover, and a first vibrating portion to vibrate the translucent cover at a vibration acceleration of larger than about 8.0×105 m/s2 and equal to or smaller than about 21.0×105 m/s2.

Abstract: An antenna module includes an antenna substrate and a feed circuit. The antenna substrate has an upper surface and a lower surface, and a radiating element having a flat plate shape is arranged in the antenna substrate. The feed circuit 105 is mounted on the lower surface of the antenna substrate and supplies a radio frequency signal to the radiating element. The antenna substrate includes a dielectric substrate on which the radiating element is arranged, a ground electrode, a feed wiring, and carbides. The ground electrode is arranged between the radiating element and the lower surface in the dielectric substrate. The feed wiring transmits the radio frequency signal supplied from the feed circuit to the radiating element. The carbides are disposed on at least a part of a side surface connecting the upper surface and the lower surface in the dielectric substrate.

Abstract: An inductor including an element body containing metal magnetic powder and resin and having a coil conductor that has a winding portion, an extended portion extended from the winding portion, and an outer electrode connection portion leading to the extended portion and connected to an outer electrode and is embedded in the element body; and an element body coat covering a surface of the element body. The outer electrode is formed on a surface of the element body and connected to the outer electrode connection portion, in which the outer electrode connection portion has a region covered with the element body coat and a region connected to the outer electrode on the surface of the element body.

Abstract: Filter devices. A first chip includes a first base, a first piezoelectric membrane having a first thickness, and a first acoustic Bragg reflector sandwiched between the first piezoelectric membrane and the first base. A first interdigital transducer (IDT) of a first solidly-mounted membrane resonator is formed on a surface of the first piezoelectric membrane. A second chip includes a second base, a second piezoelectric membrane having a second thickness less than the first thickness, and a second acoustic Bragg reflector sandwiched between the second piezoelectric membrane and the second base. A second IDT of a second solidly-mounted membrane resonator is formed on a surface of the second piezoelectric membrane. A circuit card is coupled to the first chip and the second chip, the circuit card including at least one conductor for making an electrical connection between the first IDT and the second IDT.

Abstract: A transmission line includes a first structure including a first flexible resin base material, and a first ground conductor thereon, a second structure including a second flexible resin base material, and a first signal line and an interlayer connection conductor in or on the second resin base material, a first spacer between the first and second structures, and a first metal joining material joining the first and second structures with the first spacer interposed therebetween. A first hollow portion is between the first and second structures with the first spacer interposed therebetween. The first signal line and the first ground conductor face each other in a joining direction with the first hollow portion interposed therebetween. The first resin base material and the second resin base material are not in contact with each other. The first metal joining material has a melting point lower than that of the interlayer connection conductor.

Abstract: An electronic component conveying tape includes an elongated carrier tape including recessed storage portions at regular intervals in a length direction, and each storing an electronic component, and an elongated cover tape attached to one surface in a thickness direction of the carrier tape to cover openings of the storage portions. The carrier tape is made of paper, and fibers included in the carrier tape are sloped toward the thickness direction relative to the length direction.

Abstract: A pump includes a pump housing, a vibrating plate, a driving element, and a power-feeding plate including a first conductive portion and a second conductive portion electrically insulated from the first conductive portion. The driving element has a first surface and a second surface. The first conductive portion includes a first outer terminal part, a first connecting terminal part electrically connected to the second surface of the driving element, and a first coupling part coupling the first outer terminal part and the first connecting terminal part to each other. The second conductive portion includes a second outer terminal part and a second connecting terminal part electrically connected to the second outer terminal part and to the first surface of the driving element.

Abstract: A solid electrolyte that includes a lithium ion conductive material having a garnet-type structure, a lithium ion conductive material having a LISICON-type structure, and a compound containing Li and B.

Abstract: A filtration filter having a tubular shape, defining a first opening and a second opening facing the first opening, and including a filter base that defines a plurality of through holes arranged in a square grid array. The filter base includes a continuous portion having a first set of through holes of the plurality of through holes, and a non-continuous portion having a second set of through holes of the plurality of through holes. The continuous portion extends in a first direction from the first opening of the filtration filter toward the second opening and extends in a second direction along at least a first portion of a circumference of the filtration filter orthogonal to the first direction. The non-continuous portion has the second set of through holes shifted relative to the first set of through holes of the continuous portion and extends in the first direction.

Abstract: A tactile and proximity sensor includes a light source, a light receiver, an elastic structure, and a reflecting mirror. The light source emits light. The light receiver receives light and generates a signal indicating a result of reception of the light. The elastic structure includes an elastic body deformable in response to an external force and includes a reflecting portion to reflect light and transmitting portions to transmit light. The reflecting mirror faces the light source to guide the light from the light source to the reflecting portion and the transmitting portion.

Abstract: A coil component includes an element and a coil disposed in the element. The element includes a plurality of first magnetic layers and second magnetic layers laminated. The coil includes a plurality of coil conductive layers laminated. Each of the coil conductive layers is disposed between a corresponding one of the first magnetic layers and a corresponding one of the second magnetic layers. A pore area proportion in the second magnetic layers is smaller than a pore area proportion in the first magnetic layers. A void is present between the coil conductive layer and the corresponding one of the second magnetic layers.

Abstract: A composite capacitor that includes a first capacitor and a second capacitor. Each of plural first columnar conductors and each of plural second columnar conductors have a nano-size outer diameter. The composite capacitor includes a connecting conductor layer and a reinforcement conductor. The reinforcement conductor is located between a first counter electrode layer and a second counter electrode layer of the first capacitor and the second capacitor, respectively, and is connected to each of the first counter electrode layer, the second counter electrode layer, and the connecting conductor layer. The material forming the reinforcement conductor is the same as each of the first counter electrode layer and the second counter electrode layer and is different from the material forming the connecting conductor layer.

Abstract: A multiplexer (1) used in a communication device (5) includes an antenna (21) for a first frequency band group including 5GNR and an antenna (22) for a second frequency band group and includes a filter (12) for a first communication band and a filter (13) for a second communication band. The second frequency band group is higher than the first communication band, the second communication band is lower than the first communication band, the filter (12) includes a resonant circuit (31), an inductor (L1) connected to a node (n1) in a series arm path, and an inductor (L2) magnetically coupled with the inductor (L1).

Abstract: A power amplifier unit includes a power amplifier circuit that amplifies a radio-frequency input signal, a first impedance matching circuit that performs impedance matching for an output signal of the power amplifier circuit, a second-order harmonic termination circuit on an output side of the first impedance matching circuit and that reflects at least part of even-ordered and odd-ordered harmonics contained in a signal input from the first impedance matching circuit to output the at least part of the harmonics from an input terminal as a radio-frequency signal and outputs a radio-frequency signal containing a fundamental and the remainder of the harmonics from an output terminal, and a filter that is on a subsequent stage of the second-order harmonic termination circuit, that attenuates at least part of the even-ordered and odd-ordered harmonics, and that outputs a radio-frequency signal including the fundamental and the remainder of the even-ordered and odd-ordered harmonics.

Abstract: A capacitor structure that includes a silicon substrate having a trench structure formed therein; a dielectric disposed over a surface of the trench structure, conformal to the surface of the trench structure; and a filling layer disposed over the dielectric layer and into the trench structure, the filling layer including a conductive layer and a polymer layer.