Abstract: This power conversion device includes: a power conversion portion including a power conversion circuit, and a first connection portion and a second connection portion; a first wiring portion connected to the first connection portion; a second wiring portion connected to the second connection portion; a first supply portion connected to the first wiring portion; a second supply portion connected to the second wiring portion; and a housing. The first connection portion is provided at an end on the first peripheral wall side, the second connection portion is provided at an end on the second peripheral wall side, the first supply portion is located adjacently to an end on the first peripheral wall side, the second supply portion is located adjacently to an end on the second peripheral wall side, the first wiring portion extends along the first peripheral wall, and the second wiring portion extends along the second peripheral wall.

Abstract: Heat emitted from a plurality of stacked coils forming a coil body can be dissipated from the coils on all the layers. A coil device includes a core mounted on a mounting surface of a cooler, a coil body formed by stacking, on the mounting surface, a lower-layer coil and an upper-layer coil having winding portions wound about a winding axis of the core, and heat dissipation members provided on the cooler. The upper-layer coil positioned on a layer other than the lowermost layer has extending portions extending in directions away from the winding axis. The extending portions, and the winding portion of the lower-layer coil positioned on the lowermost layer abut on the heat dissipation members.

Abstract: A coil device includes a core portion whose longitudinal direction is along a winding axis of a conductive wire and a core portion other than the core portion. In a core, the core portion is provided on an attachment surface of a housing 3, the core portion is stacked on the core portion, and the combined surfaces where the core portions are combined with each other are parallel to the winding axis.

Abstract: To obtain a transformer that can easily cope with various input voltage specifications and that has improved productivity. A transformer includes: a core portion for forming a magnetic circuit; a primary winding and a secondary winding wound at the core portion; and a first connection portion having a plurality of first conductive parts arranged with an insulation interval therebetween. One or both of the primary winding and the secondary winding are divided into a plurality of division windings, and each of the plurality of division windings of the at least one divided winding has a wound part wound at the core portion, and two extending members extending from both ends of the wound part. The first connection portion is connected to one of the two extending members of each of the plurality of division windings of the at least one divided winding.

Abstract: In a power conversion device, a casing main body has a component mounting surface, on which electrical components are mounted, and a refrigerant flow passage surface, which is a back side of the component mounting surface. The refrigerant flow passage surface has a refrigerant flow passage groove. The component mounting surface has a first facing portion, which faces a lid, a second facing portion, which is adjacent to the first facing portion, and faces the lid farther away from the lid than the first facing portion, and aside surface portion, which is formed between the first facing portion and the second facing portion. The refrigerant flow passage groove has a first flow passage portion located on back sides of the first facing portion and the side surface portion, and a second flow passage portion located on a back side of the second facing portion.

Abstract: In a power conversion device, a casing main body has a component mounting surface, on which electrical components are mounted, and a refrigerant flow passage surface, which is a back side of the component mounting surface. The refrigerant flow passage surface has a refrigerant flow passage groove. The component mounting surface has a first facing portion, which faces a lid, a second facing portion, which is adjacent to the first facing portion, and faces the lid farther away from the lid than the first facing portion, and aside surface portion, which is formed between the first facing portion and the second facing portion. The refrigerant flow passage groove has a first flow passage portion located on back sides of the first facing portion and the side surface portion, and a second flow passage portion located on a back side of the second facing portion.

Abstract: There has been a demand for an aspiration catheter which has a sufficient amount of aspiration, which is sufficiently flexible to satisfactorily track tortuous blood vessels, in which the possibility of kinking of a catheter shaft is decreased when the aspiration catheter is inserted into a guiding catheter from outside of the body, and in which good operationality is achieved. An aspiration catheter of the present invention includes an aspiration lumen for removing a substance by aspiration, the aspiration lumen extending to a hub provided at the proximal end of the catheter; and a detachable core wire disposed in the aspiration lumen.

Abstract: A catheter enabling an increase in operability when the catheter is inserted from the outside to the inside of a body and capable of remarkably reducing the risk of damage to shafts even in an unforeseen accident without complicating steps and increasing production cost. The catheter comprises at least the distal side shaft formed of a resin tube, the rear end side shaft with a higher rigidity than that of the distal side shaft, and a guide wire lumen. The catheter is characterized in that a core wire is disposed therein to adjust a flexibility so that the rear end portion of the distal side shaft is harder than the distal end portion of the distal side shaft and softer than the rear end side shaft, and the core wire is fixed to the distal side shaft near the rear end side opening part of the guide wire lumen and at a part of the rear end side portion of the distal end shaft.

Abstract: A catheter enabling an increase in operability when the catheter is inserted from the outside to the inside of a body and capable of remarkably reducing the risk of damage to shafts even in an unforeseen accident without complicating steps and increasing production cost. The catheter comprises at least the distal side shaft formed of a resin tube, the rear end side shaft with a higher rigidity than that of the distal side shaft, and a guide wire lumen. The catheter is characterized in that a core wire is disposed therein to adjust a flexibility so that the rear end portion of the distal side shaft is harder than the distal end portion of the distal side shaft and softer than the rear end side shaft, and the core wire is fixed to the distal side shaft near the rear end side opening part of the guide wire lumen and at a part of the rear end side portion of the distal end shaft.

Abstract: There has been a demand for an aspiration catheter which has a sufficient amount of aspiration, which is sufficiently flexible to satisfactorily track tortuous blood vessels, in which the possibility of kinking of a catheter shaft is decreased when the aspiration catheter is inserted into a guiding catheter from outside of the body, and in which good operationality is achieved. An aspiration catheter of the present invention includes an aspiration lumen for removing a substance by aspiration, the aspiration lumen extending to a hub provided at the proximal end of the catheter; and a detachable core wire disposed in the aspiration lumen.

Abstract: Provided is an aspiration catheter which does not require a large-scale device, has a largest possible aspiration lumen, and is sufficiently flexible to track tortuous blood vessels following a guidewire, thereby being easily advanced to a target site to be treated. In the aspiration catheter, the tip of the main shaft is obliquely cut, the distal end of the guidewire shaft is positioned at the distal end of the main shaft or protrudes from the distal end of the main shaft in the distal direction, and the relationships 0.5?L2/L1 and L2?L1?5 mm are satisfied, wherein L1 is the length of the obliquely cut portion of the main shaft in the longitudinal direction of the catheter, and L2 is the length from the proximal end of the guidewire shaft to the distal end of the main shaft.

Abstract: The present invention is a balloon catheter used primarily in treatment and surgery for the purpose of dilating lesion sites such as strictures or blockages in passages in the human body. The balloon catheter of the present invention has a structure wherein a guide wire passing tubular member is deployed passing through the interior of the expansion body, and the outer surface of the tubular member and the expansion body are concentrically fused near the distal end of the catheter. This is a balloon catheter that is characterized by the fact that the Shore hardness of the material configuring the outermost surface of the tubular member is smaller than the Shore hardness of the material configuring the expansion body. It is therefore possible to flexibly adjust the tip portion formed by securing the expansion body and the guide wire passing tubular member.

Abstract: Provided is an aspiration catheter which does not require a large-scale device, has a largest possible aspiration lumen, and is sufficiently flexible to track tortuous blood vessels following a guidewire, thereby being easily advanced to a target site to be treated. In the aspiration catheter, the tip of the main shaft is obliquely cut, the distal end of the guidewire shaft is positioned at the distal end of the main shaft or protrudes from the distal end of the main shaft in the distal direction, and the relationships 0.5?L2/L1 and L2?L1?5 mm are satisfied, wherein L1 is the length of the obliquely cut portion of the main shaft in the longitudinal direction of the catheter, and L2 is the length from the proximal end of the guidewire shaft to the distal end of the main shaft.

Abstract: The present invention aims to provide an intravascular temporary occlusion balloon catheter that can itself function as a guidewire, has superior maneuverability suitable for highly tortuous or branched blood vessels such as coronary or cerebral arteries, can be inserted into the blood vessel over the guidewire, and can be sufficiently inserted into the peripheral region of the blood vessel. The present invention includes a balloon composed of a highly tensile material having an elongation at break of 300% to 1,100% and a shaft composed of a highly elastic material and having an outer diameter in the range of 0.014 in. to 0.018 in. and a bending modulus of at least 1 GPa, wherein a lumen for tracking the guidewire is provided at a catheter distal-end portion only.

Abstract: The present invention provides a stent delivery catheter that can place a stent in a tortuous narrowed area with good maneuverability while preventing falling or displacement of the stent.

Abstract: The present invention provides a stent which is flexible in the axial direction prior to the expansion of the stent, which shows no contraction in the axial length of the stent during expansion of the stent, which has an extremely large resistance to forces exerted by contracting blood vessels after expansion, which can cause uniform expansion of the struts of the stent, and in which there is no problem of the end portions of the stent warping to a greater diameter than the central portion of the stent at the time of expansion, furthermore a stent in which the size of the basic cells that constitute the stent is reduced so that bulging of endothelial cells of vascular tissues into the inside of the stent is suppressed, furthermore a stent which allows Y stenting into branched blood vessels while maintaining a high radial force and superior scaffold properties.

Abstract: It is an object of the present invention to provide a balloon catheter in which the inner tube is prevented from slackening after balloon inflation, improving the rewrapping of the balloon, discontinuity in the rigidity of the joined portions of the outer tube and the balloon is lessened, which prevents breakage, and the catheter advances through blood vessels better and passes more easily through narrow segments, preventing the catheter from “accordioning” and enhancing insertion force transmission. The balloon catheter pertaining to the present invention has a catheter shaft (1) with a double-tube structure comprising an outer tube (4) and an inner tube (5), and a balloon (3) disposed at the distal end portion of this catheter shaft (1).

Abstract: A balloon catheter 1 is configured so as to comprise a catheter shaft 2 formed by joining a proximal-side tubular member 3 and a distal-side tubular member 4, an adapter member 6 connected to the base end of the catheter shaft 2, and a balloon 5 joined to the distal end of the catheter shaft 2. A metal coiled elastic member 10 is deployed in the internal space in the adapter member 6, so that it can move toward the distal end. This coiled elastic body 10 abuts on a ring-shaped wall part 11a formed on the outer circumferential surface of the base end of an elastic force transmitting member 11 and supports the elastic force transmitting member 11 to the distal side. The leading end of a linear member 12 that is one of the components of the elastic force transmitting member 11 reaches to an internal space 5f in the balloon and is bonded to the outer circumferential surface of a guide wire passing tube 7.

Abstract: A machine part used as a magnet roll for developing and a process for producing the same. The machine part constitutes a member of a developing machine for an electrophotographic process such as a copier and facsimile, and a laser printer as well. The machine part comprises a shaft having a resin-bonded magnet layer provided on the outer periphery thereof. The composite molding of a resin-bonded magnet is produced by molding and establishing a composition for a thermoplastic resin-bonded magnet comprising from 35 to 60 % by volume of a thermoplastic resin and from 40 to 65 % by volume of a hard ferrite powder into a cylinder of uniform thickness on the outer periphery of a shaft, obtained is a thin resin-bonded magnet layer having a surface roughness of 5 .mu.m or less and free of seams which have generated during molding, the thin resin-bonded magnet layer further having provided on the surface a plurality of magnetic poles at a small spacing.

Abstract: Disclosed is a magnet which is composed mainly of magnetic powders expressed by R-T-B (R is Nd or that partially replaced with rare earth elements and T is Fe or that partially replaced with transition metal.) and a chelate resin or a chelate resin in admixture with other synthetic resins. The magnetic has markedly improved resistance to deterioration caused by oxidation and corrosion.