Abstract: A compound according to any one of formula (Ia) to (Ic), or its pharmaceutically acceptable salt: wherein R1, R2, R3, R4a, R4c, R5 are as defined in the description.

Abstract: A compound according to any one of formula (Ia) to (Ic), or its pharmaceutically acceptable salt: wherein R1, R2, R3, R4a, R4c, R5 are as defined in the description.

Abstract: A spray nozzle assembly for directing thin, straight line, high pressure liquid spray onto moving steel slabs for penetrating and removing scale buildup in steel processing operations. The spray nozzle assembly includes a high impact attachment tube for accelerating liquid flow, a tungsten carbide spray tip at a discharge end of the high impact attachment tube for directing a flat spray pattern, an inlet defined by a strainer at an upstream end of the high impact attachment tube, and a staged vane section intermediate the inlet and spray tip for reducing liquid turbulence in the flow passageway. The vane section comprises a pair of axially spaced vanes each having a plurality of radial vane elements that define a plurality of laminar flow passageways, with the laminar flow passageways of one vane being circumferentially offset to the laminar flow passageways of the other vane.

Abstract: A spray nozzle assembly for directing thin, straight line, high pressure liquid spray onto moving steel slabs for penetrating and removing scale buildup in steel processing operations. The spray nozzle assembly includes a high impact attachment tube for accelerating liquid flow, a tungsten carbide spray tip at a discharge end of the high impact attachment tube for directing a flat spray pattern, an inlet defined by a strainer at an upstream end of the high impact attachment tube, and a staged vane section intermediate the inlet and spray tip for reducing liquid turbulence in the flow passageway. The vane section comprises a pair of axially spaced vanes each having a plurality of radial vane elements that define a plurality of laminar flow passageways, with the laminar flow passageways of one vane being circumferentially offset to the laminar flow passageways of the other vane.

Abstract: A cleaning water jetting device 40 formed so as to rotate a nozzle by a fluid pressure and capable of reducing the size of the drive part of a pump for feeding fluid to a chamber and an operation cost, comprising an upper side through-hole 6A recessedly formed in edge shape provided in the ceiling of the chamber 2 and a bottomed concave part 43 formed in round hole shape provided in the bottom surface thereof, wherein the nozzle 4 is installed by inserting a reduced diameter part 7 on a nozzle tip side at the nozzle tip side into the upper side through-hole 6A and the bottom portion 44 into the concave part 43, and kept in such a state in the upper side through-hole 6A as to face a cleaning fluid jetting port 5 toward the outside of the through-hole, to be rotated, and to allow the position thereof to be changed in a nozzle axis O direction, and can be revolved around the center axis thereof in the tilted attitude relative to the center axis P of the upper side through-hole 6A.

Abstract: A cleaning water jetting device 40 formed so as to rotate a nozzle by a fluid pressure and capable of reducing the size of the drive part of a pump for feeding fluid to a chamber and an operation cost, comprising an upper side through-hole 6A recessedly formed in edge shape provided in the ceiling of the chamber 2 and a bottomed concave part 43 formed in round hole shape provided in the bottom surface thereof, wherein the nozzle 4 is installed by inserting a reduced diameter part 7 on a nozzle tip side at the nozzle tip side into the upper side through-hole 6A and the bottom portion 44 into the concave part 43, and kept in such a state in the upper side through-hole 6A as to face a cleaning fluid jetting port 5 toward the outside of the through-hole, to be rotated, and to allow the position thereof to be changed in a nozzle axis O direction, and can be revolved around the center axis thereof in the tilted attitude relative to the center axis P of the upper side through-hole 6A.

Abstract: A fluid jet nozzle apparatus includes a fluid passage communicated with a fluid jet opening, a valve member for opening/closing the fluid passage, and an elastic member for biasing and moving the valve member to a passage closing position. The valve member includes a pressure receiving face for moving the valve member to a passage opening position against the biasing force of the elastic member in response to application thereto of a fluid pressure exceeding a predetermined pressure. The valve member and the elastic member are interposed between an entrance opening of the fluid passage and a strainer surrounding the entrance opening.