Abstract: An antenna array includes: an electrically conductive member having an electrically conductive surface in which a plurality of slots are open; a plurality of electrically-conductive ridge pairs on the electrically conductive surface, each pair protruding from edges of the central portion of a corresponding one of the plurality of slots. As viewed along a direction that the central portion of each slot extends, at least a portion of the first gap between the first ridge pair and at least a portion of the second gap between the second ridge pair overlap each other, with no other intervening electrically-conductive member therebetween; or at least a portion of the first ridge pair and at least a portion of the second ridge pair overlap each other, with no other intervening electrically-conductive member therebetween.

Abstract: A motor includes a fixed shaft, a first rotor supported by the fixed shaft in a rotatable manner relative to the fixed shaft, a first stator fixed to the fixed shaft and applying rotation torque that rotates the first rotor toward one side in a circumferential direction of the fixed shaft, a second rotor provided at a position different from a position of the first rotor in an axial direction in a rotatable manner relative to the fixed shaft, and a second stator fixed to the fixed shaft and applying rotation torque that rotates the second rotor toward another side in a circumferential direction of the fixed shaft.

Abstract: A directional coupler includes: a first waffle-iron ridge waveguide extending from one end to other end; a second waffle-iron ridge waveguide extending from one end to the other end; a first bypass waveguide connecting a first site of the first waffle-iron ridge waveguide and a first site of the second waffle-iron ridge waveguide; and a second bypass waveguide connecting a second site of the first waffle-iron ridge waveguide and a second site of the second waffle-iron ridge waveguide.

Abstract: A slot array antenna includes: a first electrically conductive member having a first electrically conductive surface; a second electrically conductive member having a second electrically conductive surface opposed to the first electrically conductive surface; a waveguide member located between the first and second electrically conductive members; and an artificial magnetic conductor extending on both sides of the waveguide member in between the first and second electrically conductive members. The first or second electrically conductive member has a plurality of slots. The waveguide member includes an electrically-conductive waveguide face of a stripe shape opposed to the first electrically conductive surface. The plurality of slots include at least two slots that couple to the waveguide face. In between two positions respectively coupled to the two slots, the waveguide face includes at least one deflecting portion at which the direction that the waveguide face extends changes.

Abstract: Under a reduced-pressure environment, stopping at will liquid that flows out from a nozzle tip, or dispensing liquid with the level of energy at which it will not splatter has proven difficult. To address such difficulties, parameters including nozzle bore, and surface tension and viscosity of, and delivery pressure on, a liquid are selected so that the surface tension that acts on the liquid when flowing out from the nozzle tip will be greater than the momentum of the liquid. By dispensing liquid under such conditions, outflow of the liquid is reliably controlled, and rapid infusion work is realized.

Abstract: To effectively prevent uneven wear of a moving mover 70 and to stabilize the control characteristics by a valve. Rotation force is exerted to the mover 70 by the fluid flowing from the first chamber to the second chamber, or vice versa, which are formed at the opposite ends of the mover 70. With respect to a flow passageway 110 formed within an anchor 72 and for allowing passage of the fluid therethrough, there are provided a passageway portion 111 which is disposed along the axial direction and another passageway portion 112 which crosses the axial direction. By this, rotation force is generated at the time the fluid passes from the former passageway portion 111 to the latter passageway portion 112 (or vice versa) which crosses the axial direction.

Abstract: Under a reduced-pressure environment, stopping at will liquid that flows out from a nozzle tip, or dispensing liquid with the level of energy at which it will not splatter has proven difficult. To address such difficulties, parameters including nozzle bore, and surface tension and viscosity of, and delivery pressure on, a liquid are selected so that the surface tension that acts on the liquid when flowing out from the nozzle tip will be greater than the momentum of the liquid. By dispensing liquid under such conditions, outflow of the liquid is reliably controlled, and rapid infusion work is realized.

Abstract: A high flow rate fuel valve suitable for an accumulator fuel injection device by which a large amount of fuel is amplified using a piston and used and a fuel supply pump using the high flow rate fuel valve are provided. For this purpose, in a fuel supply pump with a fuel inlet valve and fuel outlet valve, the fuel inlet valve has a valve main body, a valve body received in the valve main body, an inlet chamber provided inside the valve main body, inlet holes, a seat portion where the valve body and part of valve main body are in contact with each other. The inlet holes are arranged in a non-radial pattern relative to the inlet chamber.

Abstract: To effectively prevent uneven wear of a moving mover 70 and to stabilize the control characteristics by a valve. Rotation force is exerted to the mover 70 by the fluid flowing from the first chamber to the second chamber, or vice versa, which are formed at the opposite ends of the mover 70. With respect to a flow passageway 110 formed within an anchor 72 and for allowing passage of the fluid therethrough, there are provided a passageway portion 111 which is disposed along the axial direction and another passageway portion 112 which crosses the axial direction. By this, rotation force is generated at the time the fluid passes from the former passageway portion 111 to the latter passageway portion 112 (or vice versa) which crosses the axial direction.