Abstract: A sealing device that is adapted to be disposed between a reciprocating shaft and an inner peripheral surface of a shaft hole in which the reciprocating shaft is disposed, and that separates an oil side from an atmosphere side, includes an annular oil seal made of a resin, an oil-side rigid ring made of a metal, an elastomeric annular dust seal, and an atmospheric-side rigid ring made of a metal. The oil seal has an oil lip adapted to be in slidable contact with the reciprocating shaft and is formed of a resin having a glass transition temperature of 80 degrees Celsius or higher. The oil-side rigid ring is disposed around the oil seal and supports the oil seal. The dust seal is disposed on the atmosphere side of the oil seal and has a dust lip adapted to be in slidable contact with the reciprocating shaft.

Abstract: A sealing device that is adapted to be disposed between a reciprocating shaft and an inner peripheral surface of a shaft hole in which the reciprocating shaft is disposed, and that separates an oil side from an atmosphere side, includes an annular oil seal made of a resin, an oil-side rigid ring made of a metal, an elastomeric annular dust seal, and an atmospheric-side rigid ring made of a metal. The oil seal has an oil lip adapted to be in slidable contact with the reciprocating shaft and is formed of a resin having a glass transition temperature of 80 degrees Celsius or higher. The oil-side rigid ring is disposed around the oil seal and supports the oil seal. The dust seal is disposed on the atmosphere side of the oil seal and has a dust lip adapted to be in slidable contact with the reciprocating shaft.

Abstract: [Problem] To provide a method for manufacturing a sealing device having high pressure-resistance and high durability.

Abstract: A valve stem seal with significantly improved sealing performance while improving workability when fitting the valve stem seal to a valve stem guide. An inner peripheral surface of a fitting section 20B is provided with a plurality of annular seal protrusions which respectively include first inclined surfaces 25a and 26a each having a diameter that increases from a radially inward tip toward a seal section 20A side, and second inclined surfaces 25b and 26b each having a diameter that increases from a radially inward tip toward a side opposite to the seal section 20A. The first seal protrusion 25 which is closest to the seal section 20A is configured so that an inclination of the second inclined surface 25b is smaller than that of the first inclined surface 25a, and the second seal protrusion 26 which is farthest from the seal section 20A is configured so that an inclination of the first inclined surface 26a is smaller than that of the second inclined surface 26b.

Abstract: A flange portion in an annular shape extending toward the axis is formed at an end portion of a reinforcement ring on the cam side, and the flange portion is positioned between a seal lip and a back pressure lip of an elastic body part in the axis direction. An interval in the axis direction between an inner-periphery end portion of the flange portion and a root portion of the back pressure lip in the elastic body part is larger than an interval in the axis direction between the root portion of the back pressure lip and a tip end portion of the back pressure lip, and the outline of a cylinder-side corner portion of the inner-periphery end portion of the flange portion on the cylinder side is a curved line in a cross section.

Abstract: Provided is a graft material capable of securing a sufficient space for regenerated tissue in the implantation site, and thereby promoting the regeneration of a blood vessel. Specifically, the present invention provides a revascularization graft material including an outer tube and an inner tube each being formed by knitting twisted yarns of biodegradable single yarns into a hollow tubular structure, wherein there is provided, in the lumen of the outer tube, at least one inner tube having an outer diameter smaller than the lumen diameter of the outer tube. The inner tube functions as a core material for the outer tube, and accordingly the revascularization graft material is excellent in kinking resistance, and the occlusion of the lumen hardly occurs.

Abstract: [Problem] To provide a method for manufacturing a sealing device having high pressure-resistance and high durability.

Abstract: A valve stem seal with significantly improved sealing performance while improving workability when fitting the valve stem seal to a valve stem guide. An inner peripheral surface of a fitting section 20B is provided with a plurality of annular seal protrusions which respectively include first inclined surfaces 25a and 26a each having a diameter that increases from a radially inward tip toward a seal section 20A side, and second inclined surfaces 25b and 26b each having a diameter that increases from a radially inward tip toward a side opposite to the seal section 20A. The first seal protrusion 25 which is closest to the seal section 20A is configured so that an inclination of the second inclined surface 25b is smaller than that of the first inclined surface 25a, and the second seal protrusion 26 which is farthest from the seal section 20A is configured so that an inclination of the first inclined surface 26a is smaller than that of the second inclined surface 26b.

Abstract: A workpiece cutting method is provided. The workpiece cutting method includes an attaching step of attaching an adhesive tape to the front side or back side of a workpiece, an applying step of applying a liquid resin to the front side or back side of a support member, a pressing step of superimposing the workpiece on the support member in the condition where the liquid resin and the adhesive tape come into contact with each other, and then pressing the workpiece or the support member, a fixing step of curing the liquid resin to thereby fix the workpiece to the support member, and a cutting step of cutting the workpiece fixed to the support member by using a cutting blade.

Abstract: Provided is a graft material capable of securing a sufficient space for regenerated tissue in the implantation site, and thereby promoting the regeneration of a blood vessel. Specifically, the present invention provides a revascularization graft material including an outer tube and an inner tube each being formed by knitting twisted yarns of biodegradable single yarns into a hollow tubular structure, wherein there is provided, in the lumen of the outer tube, at least one inner tube having an outer diameter smaller than the lumen diameter of the outer tube. The inner tube functions as a core material for the outer tube, and accordingly the revascularization graft material is excellent in kinking resistance, and the occlusion of the lumen hardly occurs.

Abstract: A method for rendering tissue transparent, comprising a procedure of immersing the tissue in a water-soluble solvent comprising 2,2?-thiodiethanol and at least one of glycerol and a nonionic organoiodine compound is provided as a technique capable of sufficiently rendering various organs transparent without causing their changes by a simple operation without using any poisonous or dangerous organic solvent. In the method for rendering tissue transparent, a mixed solvent of 2,2?-thiodiethanol, glycerol, and a nonionic organoiodine compound aqueous solution is preferably used as the water-soluble solvent.

Abstract: In one embodiment, a light source device comprises an arc tube having a first sealing portion extending from a light emission portion. A reflection mirror is attached to neighbor the first sealing portion and has a concave reflection surface. A container accommodates the arc tube and the reflection mirror. A branch portion has a first opening which branches a part of a cooling air flowing within the container to guide the cooling air to the arc tube. First and second duct portions are each connected to the branch portion. The first and second duct portions extend along a center axis of a light reflected by the reflection mirror such that the air flows in a direction opposite to a traveling direction of the light reflected by the reflection surface. A guiding member directs the air toward the first or second duct portion by moving by its own weight.

Abstract: A laser processing machine includes a work head, a plate-like work working table for processing a plate-like work, a rod-like work working table including a rod-like work holder for processing a rod-like work, and a work area in which the work head is movably provided. The plate-like work working table is provided movably from one side of the work area into the work area. The rod-like work working table is provided movably from another side of the work area into the work area that is opposite side of the one side. According to the laser processing machine, when switching over between a processing of a plate-like work and a processing of a rod-like work, it is needed only to move/evacuate the plate-like work working table and the rod-like work working table to/from the work area, so that the switching-over operation can be easily done.

Abstract: The present invention provides; a novel gene introduction method which enables a gene to be introduced more safely and more freely, particularly a method for introducing a gene into a specified site in the brain safely and freely; a carrier for gene introduction use, which comprises a nano-particle and a substance capable of binding to a vector for gene introduction and has functional groups involved in the induction of phagocytosis by cells, wherein the substance capable of binding to a vector for gene introduction can bind to the surface of the nano-particle through some of the functional groups and another some of the functional groups remain unbound to the substance capable of binding to a vector for gene introduction; and a gene introduction agent, in which a vector for gene introduction is bound to the substance capable of binding to a vector for gene introduction in the carrier for gene introduction.

Abstract: A wafer attaching method of attaching a wafer having a warp to a sheet includes a wafer warp detecting step of detecting a surface shape of the wafer, a wafer positioning step of applying a photocuring liquid resin to the sheet and positioning the wafer so that a predetermined surface of the wafer corresponding to attaching conditions preset in a resin bonding apparatus is opposed to the sheet and the liquid resin according to the preset attaching conditions and the surface shape detected above, and a wafer attaching step of pressing the wafer against the liquid resin to thereby spread the liquid resin over the entire area where the wafer and the sheet are superimposed, next removing the pressure applied to the wafer, and next applying light to the liquid resin to cure the liquid resin, thereby attaching the predetermined surface of the wafer to the sheet.

Abstract: A light source device includes: an arc tube having a light emission portion containing a pair of electrodes and configured to emit light by discharges induced between the pair of the electrodes; and a container body that accommodates the arc tube, the container body has a space in which the arc tube is accommodated, and a plurality of openings through that cooling fluids introduced from the outside of the container body are supplied into the space, the plural openings are formed at positions that allow the cooling fluids passing through the openings to collide with each other at a collision position above the light emission portion.

Abstract: A wafer attaching method of attaching a wafer having a warp to a sheet includes a wafer warp detecting step of detecting a surface shape of the wafer, a wafer positioning step of applying a photocuring liquid resin to the sheet and positioning the wafer so that a predetermined surface of the wafer corresponding to attaching conditions preset in a resin bonding apparatus is opposed to the sheet and the liquid resin according to the preset attaching conditions and the surface shape detected above, and a wafer attaching step of pressing the wafer against the liquid resin to thereby spread the liquid resin over the entire area where the wafer and the sheet are superimposed, next removing the pressure applied to the wafer, and next applying light to the liquid resin to cure the liquid resin, thereby attaching the predetermined surface of the wafer to the sheet.

Abstract: In one embodiment, a light source device comprises an arc tube having a first sealing portion extending from a light emission portion. A reflection mirror is attached to neighbor the first sealing portion and has a concave reflection surface. A container accommodates the arc tube and the reflection mirror. A branch portion has a first opening which branches a part of a cooling air flowing within the container to guide the cooling air to the arc tube. First and second duct portions are each connected to the branch portion. The first and second duct portions extend along a center axis of a light reflected by the reflection mirror such that the air flows in a direction opposite to a traveling direction of the light reflected by the reflection surface. A guiding member directs the air toward the first or second duct portion by moving by its own weight.