Abstract: An object of the present invention is to sufficiently reduce a switching loss. A control device causes a positive electrode of a first voltage to appear at a second connection point by switching second and third switching elements to an ON state. Next, the control device causes the positive electrode of the first voltage to appear at a first connection point by switching the second and third switching elements to an OFF state. After that, fifth and eighth switching elements are switched to the OFF state, and sixth and seventh switching elements are switched to the ON state.

Abstract: When a slurry s obtained by dispersing a rare-earth-compound powder in a solvent is applied to sintered magnet bodies m, and dried to remove the solvent in the slurry and cause the surfaces of the sintered magnet bodies to be coated with the powder, and the sintered magnet bodies coated with the powder are heat treated to cause the rare-earth element to be absorbed by the sintered magnet bodies, the sintered magnet bodies m are warmed or heated before the slurry s is applied. As a result, the rare-earth-compound powder can be efficiently and uniformly applied to the surfaces of the sintered magnet bodies.

Abstract: [Problem] To reduce a setting burden on a media path in a media gateway. [Solution] A MG (1) includes a first interface for connecting to a first network among a plurality of communication networks, a second interface for connecting to a second network among a plurality of communication networks, and a test command issuing unit (13) configured to establish, when a mapping between the first interface and the second interface is set by first setting data for associating a media path ID in the first interface with a termination ID in the first interface and second setting data for associating a media path ID in the second interface with a termination ID in the second interface, a test call for a media path passing through the first interface and the second interface based on the mapping and test, by assigning a resource to the media path that is established, whether data transmission and reception are possible on the media path that is established.

Abstract: An object of the present invention is to sufficiently reduce a switching loss. A control device causes a positive electrode of a first voltage to appear at a second connection point by switching second and third switching elements to an ON state. Next, the control device causes the positive electrode of the first voltage to appear at a first connection point by switching the second and third switching elements to an OFF state. After that, fifth and eighth switching elements are switched to the OFF state, and sixth and seventh switching elements are switched to the ON state.

Abstract: A power semiconductor apparatus includes a power semiconductor element having low and high potential side electrodes and a sense electrode, high and low potential side conductors electrically connected with the high potential side electrodes, respectively, a sense wiring electrically connected with the sense electrode, and a first metal portion facing the low potential side conductor or the low potential side conductor across the sense wiring. When viewed from an array direction of the sense wiring and the first metal portion, the sense wiring has a facing portion facing the high or low potential side conductor, the first metal portion forms a recess in a part overlapping the facing portion, and a depth of the recess is formed such that a distance between a bottom of the recess and the sense wiring is larger than a distance between the sense wiring and the high or low potential side conductor.

Abstract: A switching loss of a power conversion device is sufficiently reduced. A DC-DC converter includes a switching circuit that converts input first DC power into AC power, a transformer that performs voltage conversion of the AC power, and an output circuit that converts the AC power subjected to the voltage conversion by the transformer into second DC power. The control circuit that controls the DC-DC converter calculates a magnetic flux density value B of the transformer and controls a drive frequency of the switching circuit based on the calculated magnetic flux density value B.

Abstract: A resin frame equipped membrane electrode assembly includes an MEA having different sizes of components, and a resin frame member. A resin melt portion is provided for the resin frame member. The inside of a first gas diffusion layer is impregnated with resin as a part of the resin melt portion. A thin portion is provided at an outermost peripheral portion of the resin frame member through a step at an outermost peripheral portion of the resin melt portion, and the thin portion is thinner in a thickness direction than the resin melt portion.

Abstract: A sintered magnet body is held in a grounded jig exhibiting excellent electrical conductivity, a rare-earth-compound powder is charged and sprayed on the sintered magnet body to electrostatically coat the sintered magnet body with the powder, and thus apply the powder to the sintered magnet body. The sintered magnet body having the powder applied thereto is heat treated to produce a rare-earth magnet. As a result, the rare-earth-compound powder can be uniformly applied to the surface of the sintered magnet body, and the application operating can be performed extremely efficiently.

Abstract: A switching loss of a power conversion device is sufficiently reduced. A DC-DC converter includes a switching circuit that converts input first DC power into AC power, a transformer that performs voltage conversion of the AC power, and an output circuit that converts the AC power subjected to the voltage conversion by the transformer into second DC power. The control circuit that controls the DC-DC converter calculates a magnetic flux density value B of the transformer and controls a drive frequency of the switching circuit based on the calculated magnetic flux density value B.

Abstract: When sintered magnet bodies 1 are held in a jig 2 having a rotational axis in the vertical direction, immersed in a slurry 41 to apply the slurry thereto, rotated in conjunction with the jig to remove the surplus slurry on the surface of each of the sintered magnet bodies by centrifugal force, and subsequently dried to cause the surfaces of the sintered magnet bodies to be coated with a powder, the slurry is applied while the sintered magnet bodies are held such that no portion of any of the outer surfaces forming the contours of the sintered magnet bodies is orthogonal to the direction of the centrifugal force. As a result, the rare-earth-compound powder can be uniformly applied to the surfaces of the sintered magnet bodies.

Abstract: When a slurry 41 obtained by dispersing a rare-earth-compound powder in a solvent is applied to sintered magnet bodies 1, and dried to remove the solvent in the slurry and cause the surfaces of the sintered magnet bodies to be coated with the powder, and the sintered magnet bodies coated with the powder are heat treated to cause the rare-earth element to be absorbed by the sintered magnet bodies, the sintered magnet bodies having had the slurry applied thereto are dried by being irradiated with near infrared radiation having a wavelength of 0.8-5 ?m, to remove the solvent in the slurry, and cause the surfaces of the sintered magnet bodies to be coated with the powder. As a result, the rare-earth-compound powder can be uniformly and efficiently applied to the surfaces of the sintered magnet bodies.

Abstract: A coating tank 1 provided with a net belt passage opening is prepared, a slurry obtained by dispersing a rare-earth-compound powder in a solvent is continuously supplied to the coating tank 1 to cause the coating tank 1 to overflow, and a plurality of sintered magnet bodies 10 are arranged on a net belt conveyor 5, continuously conveyed horizontally thereon, and passed through the slurry in the coating tank 1 via the net belt passage opening, to apply the slurry to the sintered magnet bodies. The slurry is subsequently dried to continuously apply the powder to the plurality of sintered magnet bodies. As a result, the rare-earth-compound powder can be uniformly applied to the surfaces of the sintered magnet bodies, and the application operation can be performed extremely efficiently.

Abstract: A method for producing rare-earth magnets is provided in which, when a slurry 2 having a rare-earth-compound powder dispersed therein is applied to sintered magnet bodies 1 and dried to apply the powder thereto, the magnet bodies 1 are accommodated and conveyed in holding pockets 42 of a conveyance drum 4 which rotates in a state of being partially immersed in the slurry 2, and, as a result, the magnet bodies 1 are immersed in the slurry 2, withdrawn from the slurry 2, and dried to apply the powder to the sintered magnet bodies 1. According to this production method, the powder can be uniformly and efficiently applied, wastage of the rare-earth compound can be effectively suppressed, and a reduction in the surface area of equipment for performing an application step can also be achieved.

Abstract: When a slurry in which a rare-earth-compound powder is dispersed is applied to sintered magnet bodies 1 and dried to apply the powder thereto, the sintered magnet bodies 1 are conveyed by a conveyer 2 and made to pass through the slurry 4 to apply the slurry to the sintered magnet bodies 1. Furthermore, a plurality of push-up members 51, which pass through insertion holes 22 provided in a conveyor belt 21, and protrude above the conveyor belt, are used to temporarily push up the sintered magnet bodies 1, and temporarily separate the conveyor belt 21 and the sintered magnet bodies 1. As a result, the slurry can be efficiently applied, even mass production can be suitably dealt with, and the slurry can be uniformly and reliably applied to the entire surface of each of the sintered magnet bodies.

Abstract: A coating tank 1 provided with a net belt passage opening is prepared, a slurry obtained by dispersing a rare-earth-compound powder in a solvent is continuously supplied to the coating tank 1 to cause the coating tank 1 to overflow, and a plurality of sintered magnet bodies 10 are arranged on a net belt conveyor 5, continuously conveyed horizontally thereon, and passed through the slurry in the coating tank 1 via the net belt passage opening, to apply the slurry to the sintered magnet bodies. The slurry is subsequently dried to continuously apply the powder to the plurality of sintered magnet bodies. As a result, the rare-earth-compound powder can be uniformly applied to the surfaces of the sintered magnet bodies, and the application operation can be performed extremely efficiently.

Abstract: A fixed beam 2 along which magnet-body holding sections 22 are consecutively provided is disposed so as to pass through a slurry 1. Sintered magnet bodies m placed in the magnet-body holding sections 22 by movable beams 3 are conveyed by repeating an operation in which the sintered magnet bodies m are moved to the following magnet-body holding sections 22. While being conveyed, the sintered magnet bodies m are passed through the slurry 1 to apply the slurry thereto, and are subsequently dried to remove a solvent in the slurry and affix a powder in the slurry thereto, and, as a result, the powder is continuously applied to the plurality of sintered magnet bodies. Accordingly, a rare-earth-compound powder can be uniformly applied to the surfaces of the sintered magnet bodies, and the amount of the slurry taken from a coating tank can be reduced to effectively decrease wasteful consumption.

Abstract: A power conversion device includes: a first low voltage side circuit and a first high voltage side circuit which are connected via a first transformer; and a second low voltage side circuit and a second high voltage side circuit which are connected via a second transformer, wherein switching timings of the first high voltage side circuit and the second high voltage side circuit are controlled such that a current difference of an input current to the first low voltage side circuit and an input current to the second low voltage side circuit during a step-up operation becomes smaller than a predetermined value. A driver circuit to output a drive signal of a switching element may be included in at least one of the first low voltage side circuit and the second low voltage side circuit.

Abstract: An object of the present invention is to provide a highly efficient power supply device. A power supply device 1 according to the present invention includes a bidirectional DC-DC converter 3 and an insulated DC-DC converter 4. The bidirectional DC-DC converter 3 receives a main battery 5 and outputs a direct-current link voltage Vlink. The insulated DC-DC converter 4 receives the link voltage Vlink and supplies power to a load 7. The link voltage Vlink, which is an output of the bidirectional DC-DC converter 3, changes according to the output voltage of the insulated DC-DC converter 4.

Abstract: A resin frame equipped membrane electrode assembly includes an MEA having different sizes of components, and a resin frame member. A resin melt portion is provided for the resin frame member. The inside of a first gas diffusion layer is impregnated with resin as a part of the resin melt portion. A thin portion is provided at an outermost peripheral portion of the resin frame member through a step at an outermost peripheral portion of the resin melt portion, and the thin portion is thinner in a thickness direction than the resin melt portion.

Abstract: A resin frame equipped membrane electrode assembly includes an MEA having different sizes of components, and a resin frame member. A resin melt portion is provided for the resin frame member. The inside of a first gas diffusion layer is impregnated with resin as a part of the resin melt portion. A thin portion is provided at an outermost peripheral portion of the resin frame member through a step at an outermost peripheral portion of the resin melt portion, and the thin portion is thinner in a thickness direction than the resin melt portion.