Abstract: A laser welding device includes: an irradiator configured to overlap laser light and measurement light coaxially with each other and apply the laser light and the measurement light to a weld part, a wavelength of the measurement light being different from a wavelength of the laser light; a measuring instrument configured to repeatedly measure a weld penetration depth of the weld part based on the measurement light that is emitted from the irradiator and reflected on the weld part so as to generate measured values; and a determiner configured to determine the weld penetration depth of the weld part based on (i) one or more measured values; or (ii) an average value of the one or more measured values, the one or more measured values being included within a predetermined range with reference to a greatest side measured value of the plurality of measured values.

Abstract: A first electrical device includes: a second radio signal receiver that receives target device information; a second processor that determines whether or not the first electrical device is included in the target device information and the first electrical device is connected to a network or whether or not a second electrical device capable of communicating with the first electrical device is included in the target device information and the second electrical device capable of communicating with the first electrical device is connected to the network; and a transmitter that, when a result of the determination by the second processor indicates that the first electrical device or the second electrical device is included in the target device information, transmits information indicating that the first electrical device or the second electrical device is the search-target device, as a response using a communication method based on the result of the determination.

Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus.

Abstract: An imaging apparatus includes: an imaging device that has variable sensitivity and that acquires images with a sampling cycle; and a control circuit that controls the imaging device. The control circuit changes a sensitivity of the imaging device with a first cycle shorter than the sampling cycle. Based on control of the control circuit, the imaging device acquires a plurality of images of a subject with the sampling cycle. The subject includes a first component that changes with a second cycle different from the first cycle.

Abstract: A powder layer composite includes a base and a powder layer having a thickness of 100 ?m or less and disposed on the base. An average of a total value of a number of powder aggregates having a long diameter of 500 ?m or greater and a number of pinholes having a long diameter of 500 ?m or greater, in any of a plurality of different regions of 20 mm×20 mm on a surface of the powder layer, is 0.2 pieces/cm2 or less.

Abstract: A positioning terminal includes: a reception unit which receives a first signal from a satellite and a second signal from a signal generator installed in a structure; and a control unit which, on the basis of a comparison result between a distance between a first positioning result acquired from the first signal and a second positioning result acquired from the second signal and the positioning accuracy of the second positioning result, outputs either the first positioning result or the second positioning result.

Abstract: A film material according to the present disclosure includes an amorphous polymer (A) including a reversible bond which is reversibly dissociated and recombined in response to a temperature change. The polymer (A) has a glass transition temperature of higher than or equal to 40° C. The polymer (A) has a storage elastic modulus of greater than or equal to 0.2 MPa at a temperature higher than the glass transition temperature by 100° C. and a storage elastic modulus of less than or equal to 100 MPa at a temperature higher than the glass transition temperature by 50° C.

Abstract: Provided is a wavelength converter including a phosphor ceramic containing a first phosphor that emits fluorescence due to a parity-forbidden transition, and a phosphor part containing a second phosphor that emits fluorescence due to a parity-allowed transition. A main surface of the phosphor ceramic has a concave and convex structure including a plurality of convex parts and a plurality of concave parts. The phosphor part is arranged inside the plurality of concave parts in the phosphor ceramic. Also provided is a light emitting device including the wavelength converter, and a solid-state light source that emits light with which the wavelength converter is irradiated and which has a light emission peak within a wavelength range of 400 nm or more and less than 500 nm.

Abstract: A display apparatus includes a housing and at least one mirror. The housing can be detachably mounted on a display and includes an entrance that allows light emitted from the display to enter the interior of the housing with the housing mounted on the display and an exit that allows the light having entered the interior of the housing through the entrance to exit to the exterior of the housing. The at least one mirror reflects the light having entered the interior of the housing through the entrance to the exit.

Abstract: An electronic device of the present disclosure includes: a housing including a recess; a battery disposed inside the recess; and one or a plurality of flame extinguishing plates that are disposed in an opening of the recess and each include a plurality of through-holes allowing an inside and an outside of the recess to communicate with each other.

Abstract: This negative electrode for a lithium ion secondary battery is characterized by comprising a negative electrode mixture layer containing a carbon-based negative electrode active material, a Si-based negative electrode active material, and carbon nanotubes, wherein when 100 is the ratio at which the carbon nanotubes coat the surface of the Si-based negative electrode active material, the ratio at which the carbon nanotubes coat the surface of the carbon-based negative electrode active material is at least 20 but no higher than 50.

Abstract: A stator includes: a plurality of stator blocks; a plurality of coils; and a supporter supporting the plurality of stator blocks. Each of the plurality of stator blocks includes: a yoke portion located at its outermost perimeter; and a teeth portion protruding from an inner peripheral surface of the yoke portion. The yoke portion has a width dimension along the circumferential direction, and the width dimension of the yoke portion is greater than a width dimension of the teeth portion along the circumferential direction. The supporter is closed in the circumferential direction. The supporter holds the plurality of stator blocks such that the plurality of stator blocks are housed in an interior of the supporter. The supporter has an inner peripheral surface in contact with at least an outer peripheral surface of the yoke portion of each of the plurality of stator blocks.

Abstract: An electrode mixture for batteries according to one embodiment contains a binder and an active material which is capable of absorbing and desorbing lithium ions. This electrode mixture additionally contains a layered silicate salt compound; and the content of the layered silicate salt compound is more than 0.1% by mass, and preferably less than 0.9% by mass relative to the mass of the active material. One example of the layered silicate salt compound is at least one kind of smectite. In addition, it is preferable that this electrode mixture additionally contains carbon nanotubes.

Abstract: A lithium secondary battery includes a positive electrode, a negative electrode disposed opposed to the positive electrode, a separator interposed between the positive electrode and the negative electrode, a non-aqueous electrolyte having a lithium ion conductivity, and a spacer interposed between the negative electrode and the separator. A lithium metal deposits on the negative electrode during charging, and the lithium metal dissolves from the negative electrode during discharging. The spacer has a net structure formed with a plurality of lined projected portions.

Abstract: Provided is a composite member including an inorganic matrix part that is made from an inorganic substance including a metal oxide hydroxide; and an electrically conductive material part that is present in a dispersed state inside the inorganic matrix part and has electric conductivity. In the composite member, a porosity in a cross section of the inorganic matrix part is 20% or less.

Abstract: A battery includes: an electrode layer; a counter electrode layer, which is a counter electrode for the electrode layer; a solid electrolyte layer between the electrode layer and the counter electrode layer; and an electrode current collector electrically coupled to the electrode layer. The solid electrolyte layer includes a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is positioned within a region where the electrode layer and the counter electrode layer face each other. Moreover, a second density, which is of the second solid electrolyte material in the second region, is higher than a first density, which is of the first solid electrolyte material in the first region.

Abstract: A lithium primary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode mixture including manganese dioxide, the negative electrode includes at least one of a metal lithium and a lithium alloy, the non-aqueous electrolyte includes an isocyanate compound as a first component, and at least one of a cyclic imide compound and a phthalic acid ester compound as a second component, the non-aqueous electrolyte has an isocyanate compound concentration of 5 mass % or less.

Abstract: A method of charging a secondary battery, the battery including a positive electrode in which a lithium ion is stored during discharging and released during charging, a negative electrode in which a lithium metal deposits during charging and dissolves during discharging, and a non-aqueous electrolyte having a lithium ion conductivity, wherein the method includes a step of charging the secondary battery according to a first charging profile. In the secondary battery, a surface of the negative electrode is covered with a protection layer. In the first charging profile, charging starts from a first charging step in which charging is performed at a constant current with a first electric current density I1, and following the first charging step, a second charging step is performed in which charging is performed at a constant current with a second electric current density I2 that is larger than the first electric current density I1.

Abstract: An electronic device includes a battery pack, a charging circuit that charges the battery pack, a load device that operates with a power of the battery pack, a voltage sensor that detects a charge voltage and a discharge voltage of the battery pack, a current sensor that detects a charge current and a discharge current of the battery pack, and a control circuit. The control circuit calculates an internal resistance of the battery pack based on the charge voltage and the charge current, calculates an allowable power indicating a maximum power that is able to be acquired from the battery pack by the load device based on the discharge voltage, the discharge current, and the internal resistance, and sends a control signal to the load device to cause the load device to operate with a power less than or equal to the allowable power.

Abstract: A transmission method includes: generating a frame for transfer which stores one or more first internet protocol (IP) packets storing content, and one or more second IP packets each including reference clock information which indicates a time for a playback of the content; and transmitting the generated frame through broadcasting. In the generating, header compression is performed on the one or more first IP packets and the header compression is not performed on the one or more second IP packets.