Abstract: A heater including: a base body; a high frequency electrode and a heating element arranged inside the base body; and a support body, the base body including a first surface on which a heating target is mounted, a second surface to which a first end portion of the support body is attached, a first flow path having an gas intake provided on the first surface, a second flow path having an gas exhaust provided in a region inside the support body on the second surface, and a third flow path connecting the first flow path and the second flow path, each of the high frequency electrode, the heating element, and the third flow path being arranged in a plane parallel to the first surface, the heating element and the third flow path being arranged closer to the second surface than the high frequency electrode.

Abstract: A method of manufacturing a compact includes filling a space defined by a die hole in a die and a lower punch with powder, and compressing the powder in the space with the lower punch and an upper punch to form a compact. The compact includes a body, the body being prism-shaped and having a first bottom surface, a second bottom surface opposite to the first bottom surface, and a plurality of side surfaces, a first plate portion provided on the first bottom surface, and a second plate portion provided on the second bottom surface.

Abstract: A harmonic processing circuit includes: a feeder line configured to feed power to an amplifying device; and a harmonic processing unit connected to the feeder line, and configured to perform harmonic processing to a harmonic of a signal outputted from the amplifying device. The feeder line is connected to a fundamental wave matching circuit that is connected to the amplifying device and performs matching at a fundamental wave frequency of the signal.

Abstract: Provided is a relay device including: a relay unit configured to perform a relay process for a frame transmitted and received between the function units; and a relay management unit. The relay unit receives, from a function unit, a target frame which is transmitted and received according to a predetermined communication protocol and includes information with which a request source of a service is identifiable and information with which a content of the requested service is identifiable, duplicates target data which is at least a part of the received target frame, outputs the duplicated target data to the relay management unit, and relays the received target frame to another function unit. The relay management unit performs determination regarding setting change in the relay process of the relay unit, on the basis of the target data received from the relay unit.

Abstract: A semiconductor device includes a substrate, a semiconductor layer provided on the substrate and having a plurality of GaN channel layers and a plurality of AlGaN barrier layers which are alternately laminated from a substrate side, a source electrode and a drain electrode electrically connected to the GaN channel layers, and a gate electrode provided between the source electrode and the drain electrode to control a potential of the semiconductor layer, wherein an Al composition ratio of an AlGaN barrier layer closest to the substrate is smaller than that of an AlGaN barrier layer second closest to the substrate.

Abstract: A package for an optical module includes a substrate provided through a side wall in a first direction. The substrate includes a first wiring layer including a first signal terminal, a second signal terminal, and a first ground terminal. The package includes a second wiring layer disposed under the first wiring layer. The second wiring layer includes a first ground pattern and a first insulating layer disposed between the first wiring layer and the second wiring layer, and includes a groove extending along the first direction, the groove being filled with a metal. The groove is provided within the first ground terminal, in a plan view, and the first insulating layer is free of the groove. The first ground terminal is electrically coupled to the first ground pattern through the metal of the groove.

Abstract: A resin composition for secondary coating of an optical fiber is a resin composition comprising: a photopolymerizable compound comprising a urethane (meth)acrylate having a number average molecular weight of 10000 or more and 40000 or less; and a photopolymerization initiator, the content of the urethane (meth)acrylate is 0.05 parts by mass or more and 15 parts by mass or less based on the total amount of the resin composition of 100 parts by mass, and the urethane (meth)acrylate is a reaction product of a polyol having a number average molecular weight of 1800 or more and 4500 or less, a diisocyanate, and a hydroxyl group-containing (meth)acrylate.

Abstract: A semiconductor optical device includes a first n-type III-V group compound semiconductor layer, an active layer, a tunnel junction structure including a p-type III-V group compound semiconductor layer and a second n-type III-V group compound semiconductor layer, and a third n-type III-V group compound semiconductor layer. The first n-type III-V group compound semiconductor layer, the active layer, the p-type III-V group compound semiconductor layer, the second n-type III-V group compound semiconductor layer, and the third n-type III-V group compound semiconductor layer are stacked in this order. The second n-type III-V group compound semiconductor layer has an n-type dopant concentration higher than an n-type dopant concentration of the third n-type III-V group compound semiconductor layer. The p-type III-V group compound semiconductor layer has a strain.

Abstract: A porous membrane according to the present disclosure includes polytetrafluoroethylene as a main component, wherein a melting curve obtained in a first run of differential scanning calorimetry at a rate of temperature increase of 10° C./min has an endothermic peak in a range of 300° C. to 360° C., and a difference between an onset temperature and an endset temperature of the endothermic peak is 20° C. or less.

Abstract: An electrical connection system includes a plug and a receptacle. The plug includes a plurality of first conductors and a plug housing including an inclined first end surface. The receptacle includes a plurality of second conductors and a receptacle housing including an inclined second end surface. The plug and the receptacle are configured to be coupled with each other, such that a first direction in which the first conductor extends intersects with a second direction in which the second conductor extends as a first connection mode. When the plug is coupled to the receptacle in the first connection mode, the first end surface faces the second end surface and each distal end portion of the plurality of the first conductors is electrically connected to the distal end portion of a corresponding second conductor among the plurality of the second conductors.

Abstract: A cutting tool, including: a base; and a coating disposed on the base, wherein the coating includes a first layer, the first layer is composed of an alternate layer in which a first unit layer and a second unit layer are alternately stacked, the first unit layer has a hexagonal crystal structure, the first unit layer is composed of W(C1-aNa)x, a represents 0.3 or more and 0.8 or less, x represents 0.8 or more and 1.2 or less, the second unit layer is composed of AlcTi1-cN, and c represents 0.30 or more and 0.75 or less.

Abstract: A resin composition for secondary coating of an optical fiber is a resin composition comprising: a non-reactive urethane compound having a number average molecular weight of 10000 or more and 40000 or less, a photopolymerizable compound, and a photopolymerization initiator, wherein the content of the non-reactive urethane compound is 0.05 parts by mass or more and 10 parts by mass or less based on the total amount of the resin composition of 100 parts by mass, and the non-reactive urethane compound is a reaction product of a polyol having a number average molecular weight of 1800 or more and 4500 or less, a diisocyanate, and a compound having active hydrogen.

Abstract: A flexible printed wiring board according to an aspect includes a base film, a conductive pattern disposed on one surface of the base film, and an extra length absorbing portion protruding from the base film and disposed in a direction of a plane, the extra length absorbing portion including a pattern connected portion connected to the conductive pattern, a coupling portion having a first linear wiring portion, a first arcuate wiring portion, and a second linear wiring portion coupled in this order continuously from the pattern connected portion, and a connecting terminal connected to the coupling portion, the pattern connected portion and the connecting terminal being opposite to each other in a direction in which the extra length absorbing portion protrudes.

Abstract: This on-vehicle communication system is an on-vehicle communication system including one or a plurality of switch devices each configured to relay data between a plurality of function units mounted to a vehicle. The on-vehicle communication system includes: a detection unit configured to detect an abnormality regarding a function unit; and a change unit configured to, when an abnormality has been detected by the detection unit, perform a protocol change process of causing the function unit for which the abnormality has been detected, to change a protocol that is used.

Abstract: A flexible printed wiring board according to an aspect of the present disclosure is a flexible printed wiring board including a base film and a plurality of wiring lines disposed on a front surface of the base film. Each of the wiring lines has a front end surface extending in a longitudinal direction of the wiring line and two side surfaces extending in the longitudinal direction, and the side surfaces have an arithmetical mean roughness Ra of 0.05 ?m to 2.0 ?m. The wiring lines have an average height of 40 ?m to 120 ?m. The wiring lines have an average spacing of 1 ?m to 30 ?m.

Abstract: A cemented carbide comprising a plurality of tungsten carbide particles and a binder phase, wherein the cemented carbide comprises a total of 80% by volume or more of the tungsten carbide particles and the binder phase, the cemented carbide comprises 0.1% by volume or more and 20% by volume or less of the binder phase, the cemented carbide comprises at least one first element selected from the group consisting of titanium, tantalum, niobium, zirconium, hafnium, and molybdenum, the cemented carbide comprises a total of 0.01 atomic % or more and 10.0 atomic % or less of the first element, the binder phase comprises 50% by mass or more of cobalt, and the first element is not segregated in a first interface region between the tungsten carbide particles adjacent to each other.

Abstract: Provided is a cemented carbide comprising a plurality of tungsten carbide grains and a binder phase, wherein the cemented carbide comprises the tungsten carbide grains and the binder phase in a total of 89% by volume or more, the cemented carbide comprises 1.8% by volume or more and 20.0% by volume or less of the binder phase, the binder phase contains cobalt, the cemented carbide contains 1.0% by mass or more of cobalt, and a percentage (H2/H1)×100 of a hardness of the binder phase at 600° C., H2 GPa, to a hardness at 25° C., H1 GPa, as measured by a nanoindenter method is 25% or more.

Abstract: A detection device includes: a signal output unit configured to output a measurement signal having a frequency component to a target line; a measurement unit configured to receive, from the target line, a response signal including a signal in which the measurement signal is reflected, and measure at least one of an amplitude and a phase of the received response signal; and a detection unit configured to calculate an evaluation value based on a measurement result obtained by the measurement unit, and detect a change in a level of bending of the target line, based on a change over time in the calculated evaluation value.

Abstract: Provided is a cemented carbide comprising a plurality of tungsten carbide grains and a binder phase, wherein the cemented carbide comprises the tungsten carbide grains and the binder phase in a total of 89% by volume or more, the cemented carbide comprises 1.8% by volume or more and 20.0% by volume or less of the binder phase, the binder phase contains cobalt, the cemented carbide contains 1.0% by mass or more of cobalt, and a Young's modulus of the binder phase at 25° C. is 170 GPa or more, as measured by a nanoindenter method.

Abstract: An in-vehicle device mounted to a vehicle includes: a storage unit configured to store characteristic data indicating a characteristic of a transmission path in an in-vehicle network mounted to the vehicle; a measurement unit configured to measure the characteristic of the transmission path; and an authentication unit configured to perform an authentication process for the transmission path by using a comparison result between the characteristic data in the storage unit and a measurement result by the measurement unit.