Abstract: A method for manufacturing a rotor capable of efficiently cooling down a magnet inserted into a magnet insertion hole of a rotor core is provided. The method for manufacturing the rotor includes: fixing a first end plate in which a slit is formed to one end part of the rotor core in an axial direction and causing a magnet insertion hole of the rotor core and the slit of the first end plate to be continuous; fixing a second end plate to another end part of the rotor core in the axial direction; and holding the magnet inserted into the magnet insertion hole of the rotor core by a convex part that is formed in a position of the first end plate overlapping the magnet in the axial direction of the rotor core and the second end plate and fixing the magnet therein.

Abstract: A rotor includes: a rotor core in a shape of a shaft; a permanent magnet; and a connecting member interposed between the rotor core and the permanent magnet and connecting the permanent magnet to the rotor core. The connecting member contains a thermally conductive filler made of a non-magnetic material. Only ends of the filler have magnetism, and the ends are in contact with either or both of the rotor core and the permanent magnet.

Abstract: A vehicle antitheft apparatus that is difficult to cut and fuse is provided. A vehicle antitheft apparatus according to the present disclosure includes an arm part attached to a predetermined place of a vehicle, the arm part being configured to restrict a predetermined movement of the vehicle, and a fixing part configured to fix the arm part. The arm part includes a first layer made of a mixture of alumina and a resin material, and a second layer disposed on an inner side of the first layer, the second layer containing stainless steel. At least a part of an outer surface of the second layer is coated with chromium; the outer surface of the second layer has unevenness; and a linear material containing titanium or iron is provided between the first and second layers.

Abstract: A traffic signal system and a traffic signal deployment method that enable a traffic signal to be disposed quickly are provided. A traffic signal system includes multiple drones each of which can hold a traffic signal, and a server that can communicate with the multiple drones, in which the server includes a position information acquisition unit that acquires position information of a target point, the target point being a place where it is necessary to dispose the traffic signal, and the drone includes: a flight control unit that controls flight of the drone holding the traffic signal so that it moves to the target point and hovers at the target point based on the position information; and a light control unit that controls lighting of the traffic signal so that timings of the lighting of the multiple traffic signals are synchronized with each other.

Abstract: A technique for improving durability of a frame is provided. A method for manufacturing a honeycomb structure from a triangular hollow pipe composed of a first flat plate, a second flat plate, and a third flat plate includes forming a first slit in the hollow pipe so as to cut all the flat plates except the first plate and forming a second slit in the hollow pipe at a position different from a position of the first slit position in a longitudinal direction of the hollow pipe so as to cut all the flat plates except the second flat plate and folding back the first plate at the first slit position and folding back the second flat plate at the position of the second slit position.

Abstract: A rotor includes: a rotor core in a shape of a shaft; a permanent magnet; and a connecting member interposed between the rotor core and the permanent magnet and connecting the permanent magnet to the rotor core. The connecting member contains a thermally conductive filler made of a non-magnetic material. Only ends of the filler have magnetism, and the ends are in contact with either or both of the rotor core and the permanent magnet.