Abstract: According to one embodiment, a rotary electric machine includes a rotor and a stator. The rotor includes a rotary shaft, a first core, a permanent magnet, and an intermediate member. The rotary shaft extends in a first direction. The first core is provided around the rotary shaft in a first plane perpendicular to the first direction. The permanent magnet is provided around the first core in the first plane. The intermediate member is provided between the rotary shaft and the first core. The intermediate member includes a first portion containing a carbon fiber, and a second portion aligned with the first portion in the first direction and containing a metal. The stator is provided around the rotor in the first plane.

Abstract: A welding apparatus according to one embodiment includes an irradiation device and nozzle. The irradiation device irradiates a surface of an object with an energy beam. The nozzle is provided with a first channel through which a shield gas flows and a second channel apart from the first channel and through which a gas flows, and the nozzle moves in an irradiation direction. The nozzle includes an end facing the surface and an outer face connected to the end and located in the irradiation direction with respect to the first channel. The end is provided with a first opening that communicates with the first channel and allows discharge of the shield gas toward the surface. The outer face is provided with a second opening that communicates with the second channel and allows the gas to be discharged away from the outer face in the irradiation direction.

Abstract: A battery of one embodiment includes an electrode group, a current collecting tab, a terminal and a lead. The current collecting tab protrudes outwardly in a lateral direction in the electrode group, and the terminal is deviated from the electrode group in a height direction. The lead includes a top plate portion to which the terminal is connected, and a leg portion bent to the top plate portion toward a side of the electrode group in the height direction. A bending line of the leg portion to the top plate portion is along a depth direction, and the leg portion extends straight from a bending position to a far side end. A leg edge surface facing one side in the depth direction is joined to the current collecting tab in an outer surface of the leg portion.

Abstract: An electrochemical cell according to one embodiment includes a solid electrolyte layer having insulating property, a first electrode, and a second electrode. The solid electrolyte layer has a first face and a second face, and allows ions to move therethrough. The first electrode is one of an anode and a cathode and provided on the first face. The first electrode includes an inside channel that allows gas to flow, a third face into which a first open end of the channel opens, a fourth face into which a second open end of the channel opens, and an inner wall face that defines the channel. The second electrode is the other of the anode and the cathode and provided on the second face.

Abstract: A stereoilithography apparatus includes a first optical system, a second optical system, an area setter and a moving mechanism. The first optical system emits a first light to a photocurable material. The second optical system emits a second light to the photocurable material such that a target area is formed in the photocurable material. The target area linearly intersects the first light in a first direction. The area setter sets a first area and a second area for at least one of the first light and the second light in the first direction at the target area. The first area and the second areas have different optical properties from each other. The moving mechanism moves the target area. The stereolithography apparatus cures the photocurable material at the target area.

Abstract: A welding apparatus according to one embodiment includes an irradiation device and nozzle. The irradiation device irradiates a surface of an object with an energy beam. The nozzle is provided with a first channel through which a shield gas flows and a second channel apart from the first channel and through which a gas flows, and the nozzle moves in an irradiation direction. The nozzle includes an end facing the surface and an outer face connected to the end and located in the irradiation direction with respect to the first channel. The end is provided with a first opening that communicates with the first channel and allows discharge of the shield gas toward the surface. The outer face is provided with a second opening that communicates with the second channel and allows the gas to be discharged away from the outer face in the irradiation direction.

Abstract: An electrochemical cell according to one embodiment includes a solid electrolyte layer having insulating property, a first electrode, and a second electrode. The solid electrolyte layer has a first face and a second face, and allows ions to move therethrough. The first electrode is one of an anode and a cathode and provided on the first face. The first electrode includes an inside channel that allows gas to flow, a third face into which a first open end of the channel opens, a fourth face into which a second open end of the channel opens, and an inner wall face that defines the channel. The second electrode is the other of the anode and the cathode and provided on the second face.

Abstract: In a stereolithography apparatus according to an embodiment, for example, a first optical system emits a first light to a photocurable material. A second optical system emits a second light to the photocurable material such that the second light linearly intersects the first light in a first direction in the photocurable material. An area setter sets, for at least one of the first light and the second light, a first area and a second area having different optical properties from each other, at an intersection of the first light and the second light in the first direction. A moving mechanism moves the intersection of the first light and the second light. The stereolithography apparatus cures the photocurable material at the intersection of the first light and the second light.

Abstract: According to one embodiment, a lens driving device includes a fixed member, a movable member, a support part, and a coil. The movable member is configured to retain a lens and a magnet. The supporting part is configured such that a guide member placed substantially in parallel with a lens optical axis supports the movable member at plural positions symmetric with respect to the lens optical axis while the movable member is movable in a direction of the lens optical axis with respect to the fixed member. The coil is configured such that a driving force is generated for the movable member by interaction with the magnet provided in the fixed member.