Abstract: An object detection apparatus includes an irradiator configured to irradiate a detection wave, a detector configured to detect a reflected wave of the detection wave, and a controller configured to estimate an arrival direction and a flight distance of the reflected wave. The controller is configured to perform an object detection process on a detection result of the reflected wave only when the arrival direction and the flight distance are included in a detection target range.

Abstract: A printed circuit board which improves the peel strength of a wiring pattern formed at a cavity bottom portion while enabling connection between an electronic component inside a cavity and a circuit outside the cavity to be performed at the cavity bottom portion, includes a cavity in a partial region of a multilayer substrate laminated with an insulating resin layer and an electrical conductor layer on a bottom layer of an insulating resin substrate. The cavity opens on a side of the insulating resin substrate, penetrates the insulating resin substrate, and includes a surface of the insulating resin layer as a bottom surface. The electrical conductor layer has a surface, the surface having a height equivalent to a height of the surface of the insulating resin layer and being embedded in the insulating resin layer in a manner to form a portion of the bottom surface.

Abstract: An image display module includes a display that displays a parallax image projected to eyes of a user, a barrier that causes parallax between the eyes by defining a traveling direction of image light for the parallax image, and a controller that controls the display. The controller divides the display into a plurality of display control areas based on distortion of the parallax image projected, and controls, for each of the plurality of display control areas, a minimum repeat unit and an index for the parallax image.

Abstract: An imaging lens may be a retrofocus type imaging optical system including, in order from an object side, a first lens group, an aperture and a second lens group. The first lens group may include, from the object side, a meniscus as a first lens in which a convex surface is formed on the object side, and a meniscus lens as a second lens in which a convex surface is formed on the object side. The second lens group may include a convex lens as a third lens, a biconvex lens as a fourth lens, a biconvex lens as a fifth lens and a sixth lens, and the fifth lens and the sixth lens may be joined to each other. The imaging lens may be constructed with 6 elements and 5 groups including the first lens group and the second lens group.

Abstract: An electronic device includes a transmission antenna, a reception antenna, and a signal processor. The transmission antenna is configured to transmit a transmission wave. The reception antenna is configured to receive a reflection wave resulting from reflection of the transmission wave. The signal processor is configured to detect an object based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflection wave. The signal processor classifies a point group representing the object in accordance with a prescribed parameter when performing clustering on detection results of the object.

Abstract: A piezoelectric element includes a vibration portion, a holding portion, excitation electrodes, mounted electrodes, and wiring electrodes. A vibration main surface and a holding main surface are on the same plane. A holding main surface includes a fixing portion configured to be in contact with an element mounting member. The mounted electrodes are located side by side on the fixing portion. An inner side edge of the mounted electrode and an inner side edge of the wiring electrode are connected in a straight line. An inner side edge of the mounted electrode and an inner side edge of the wiring electrode are connected in a straight line.

Abstract: A wiring board includes an insulation substrate, a through-conductor, and a wiring conductor. The insulation substrate includes a first surface, a second surface opposite to the first surface, and a through-hole extending from the first surface to the second surface. The through-conductor is located in the through-hole and on an opening of the through-hole on a first surface side. The wiring conductor is located on the first surface and connected to the through-conductor. The through-conductor and the wiring conductor contain copper as a main component. The average size of Cu crystal grains in the through-conductor is larger than the average size of Cu crystal grains in the wiring conductor.

Abstract: A head-up display system includes a three-dimensional display device, an optical member, and an accelerometer. The three-dimensional display device includes a display panel, an optical element, and a controller. The display panel displays an image. The optical element defines a traveling direction of image light emitted from the display panel. The optical member reflects the image light from the three-dimensional display device toward a user's eye. The optical member is at a fixed position relative to the three-dimensional display device. The accelerometer detects acceleration of the three-dimensional display device. The controller controls a position of the image on the display panel based on the acceleration.

Abstract: An insulating substrate has a sample holding surface. A support is bonded to the insulating substrate. A first through-hole in the insulating substrate and a second through-hole in the support are continuous with each other to serve as a gas inlet. A porous member is located in the second through-hole. The second through-hole has, at its opening adjacent to the insulating substrate (opening adjacent to the substrate), a larger diameter than the first through-hole. The opening of the second through-hole and an electrostatic attraction electrode are at different positions in a direction parallel to the sample holding surface. The electrostatic attraction electrode and the second through-hole avoid overlapping each other as viewed from above.

Abstract: A coated tool may include a base member having a first surface and a coating layer located on the first surface. The coating layer may have a first layer and a second layer. The first layer may be located on the first surface, and the first layer may include aluminum oxide. The second layer may be contactedly located on the first layer, and the second layer may include a titanium compound. In a cross section orthogonal to the first surface, the first layer may include a first projection protruding toward the second layer and a first recess located on the first projection. The second layer may include a second recess engaged with the first projection and a second projection engaged with the first recess.

Abstract: An antenna element includes an antenna and a filter. The antenna includes a conductor part, a ground conductor, three or more first connection conductors, a first feeding line, and a second feeding line. The conductor part extends along a first plane and includes a plurality of first conductors. The ground conductor is positioned separately from the conductor part and extends along the first plane. The connection conductors extend from the ground conductor toward the conductor part. The first feeding line is electromagnetically connected to the conductor part. The second feeding line is configured to be electromagnetically connected to the conductor part at a position different from a position of the first feeding line. The filter is configured to be electrically connected to at least one of the first feeding line and the second feeding line. The filter is positioned to be overlapped with the ground conductor.

Abstract: A channel member of a liquid ejection head includes an ejection surface, an outer peripheral surface that is connected to an outer edge of the ejection surface and that faces outside of the ejection surface in a direction along the ejection surface, and a plurality of ejection holes that open in the ejection surface. The channel member includes a plurality of concave portions in the outer edge of the ejection surface, the plurality of concave portions being recessed in the ejection surface and being recessed in the outer peripheral surface. With the configuration, it is possible to collect, in the concave portions, a liquid (such as ink mist) that has leaked out from the ejection holes.

Abstract: A fuel cell apparatus includes a fuel cell module including a housing and a fuel cell housed in the housing, the fuel cell generating electric power with use of a fuel gas and an oxygen-containing gas; and a heat exchanger which carries out heat exchange between a medium and exhaust gas from the fuel cell module, the heat exchanger being arranged laterally to the housing.

Abstract: A voltage-controlled oscillator includes a piezoelectric element, a first package, an electronic element, and a second package. The first package contains the piezoelectric element. The second package contains the electronic element and the first package. The second package includes a base, and a lid. The electronic element and the first package are mounted in the base. The lid hermetically seals the electronic element and the first package together with the base. The base includes a substrate part, a first frame part, and a second frame part. The substrate part includes a first major face and a second major face opposite to the first face. The electronic element is mounted on the first major face. The first frame part includes a first frame face on which the first package is mounted. The first frame part is located on a peripheral edge of the first major face.

Abstract: User equipment, an apparatus configured to control user equipment, and a method. The method may include receiving by a user equipment from a base station, a synchronization signal and a master information block, the master information block transmitted at a same transmission cycle as a transmission cycle of the synchronization signal. The method may further include receiving by the user equipment from the base station, first information indicating time domain positions at which the synchronization signal and the master information block are to be transmitted. In addition, the method may include receiving by the user equipment from the base station, second information indicating a periodicity of transmission of the synchronization signal and the master information block. The periodicity indicated by the second information may be different from 40 ms.

Abstract: A circular polarized array antenna includes an antenna layer and a ground layer. The antenna layer includes a plurality of antenna elements disposed at different positions in plan view. Each of the antenna elements is composed of a circular polarized antenna. The ground layer faces the antenna layer. The ground layer includes a plurality of ground patterns separated from each other. Each of the ground patterns faces one or more of the antenna elements.

Abstract: An antenna substrate according to the present disclosure includes a first insulation layer including a first surface, a second surface located opposite the first surface, and a first through-hole conductor extending from the first surface to the second surface, a ground conductor located at the first surface, the ground conductor including a slot, a second insulation layer including a second through-hole conductor connected to the first through-hole conductor, the second insulation layer covering the ground conductor located at the first surface, and a first antenna conductor located at a surface located on the opposite side to the other surface of the second insulation layer, the other surface covering the ground conductor.

Abstract: A wavelength converter emits light in response to laser light emitted from a light emitter. The wavelength converter includes a surface including a first area to directly receive the laser light from the light emitter, and a second area located on a member. The light emitted from the wavelength converter includes a first component emitted directly from the wavelength converter and input directly into the light receiver, and a second component emitted from the second area, reflected from the member, and input into the light receiver. The member includes a surface including a third area to receive the second component. The third area has a reflectance for the light greater than a reflectance of the wavelength converter for the light in the second area.

Abstract: A piezoelectric actuator includes a body portion including a layered piezoelectric element layered in a Y-axis direction of an orthogonal coordinate system XYZ, the body portion extending along a Z-axis direction. The body portion includes a first piezoelectric element that displaces a tip portion in an X-axis direction, a second piezoelectric element that displaces the tip portion in the Y-axis direction, and a third piezoelectric element that displaces the tip portion in the Z-axis direction.

Abstract: A grease composition contains: a liquid resin (A), poly(methacrylic acid)-based organic particles (B), and an inorganic filler (C). The liquid resin (A) contains at least one type selected from the group consisting of polyols, polyethers, and diamine resins. The poly(methacrylic acid)-based organic particles (B) are dissoluble in an organic solvent having a solubility parameter (SP value) of 7.-8 to 10.1.