Abstract: A pulse transformer 1 is provided with a drum core 2 including a winding core 3 and first and second flanges 4A and 4B, and wires S1 to S4 wound around the winding core 3. Terminal electrodes P1 and N1 and a center tap CT2 are provided on the flange 4A, and terminal electrodes P2 and N2 and a center tap CT1 are provided on the flange 4B. Each end of the wires S1 to S4 is connected to a corresponding one of the terminal electrodes P1 and N1, the center tap CT2, the terminal electrodes P2 and N2, and the center tap CT1. A length of the drum core 2 in X direction is equal to a length of the drum core 2 in Y direction, so that the shape of the mounting region on the printed circuit board is not changed even after being rotated by 90°.

Abstract: A pulse transformer is provided with a drum core 2 including a winding core 3 and first and second flanges 4A and 4B, and wires S1 to S4 wound around a winding core 3 of the drum core 2. Terminal electrodes 6a and 6b and a center tap 6c are provided on the flange 4A, and terminal electrodes 6d and 6e and a center tap 6f are provided on the flange 4B. Each end of the wires S1 to S4 is connected to a corresponding one of the terminal electrodes P1 and N1, the center tap CT2, the terminal electrodes P2 and N2, and the center tap CT1. A front end of the terminal electrode 6b is setback toward an outer side surface of the flange 4A, and a front end of the terminal electrode 6e is setback toward an outer side surface of the first flange 4B.

Abstract: Disclosed is an aqueous solution of a chromium salt, in which the oxalic acid content is 8% by weight or less relative to chromium. In the aqueous solution of the chromium salt, the total organic carbon content is 4% by weight or less relative to chromium. The chromium salt is preferably a chromium chloride, a chromium phosphate, or a chromium nitrate. The chromium chloride preferably contains a basic chromium chloride represented by the composition formula Cr(OH)xCly (wherein 0<x?2, 1?y<3, and x+y=3). The chromium phosphate is preferably one represented by the composition formula Cr(H3-3/nPO4)n (wherein n is a number satisfying 2?n?3). The chromium nitrate is preferably a basic chromium nitrate represented by the composition formula Cr(OH)x(NO3)y (wherein 0<x?2, 1?y<3, and x+y=3).

Abstract: Disclosed is an aqueous solution of a chromium salt, in which the oxalic acid content is 8% by weight or less relative to chromium. In the aqueous solution of the chromium salt, the total organic carbon content is 4% by weight or less relative to chromium. The chromium salt is preferably a chromium chloride, a chromium phosphate, or a chromium nitrate. The chromium chloride preferably contains a basic chromium chloride represented by the composition formula Cr(OH)xCly (wherein 0<x?2, 1?y<3, and x+y=3). The chromium phosphate is preferably one represented by the composition formula Cr(H3?3/nPO4)n (wherein n is a number satisfying 2?n?3). The chromium nitrate is preferably a basic chromium nitrate represented by the composition formula Cr(OH)x(NO3)y (wherein 0<x?2, 1?y<3, and x+y=3).

Abstract: A downsized modular jack with high surface-mounting performance. The modular jack has a housing and a terminal holder assembled thereto. The housing has a rear wall formed with a terminal insertion through-hole extending through a thickness of the rear wall, and a latch section insertion through-hole positioned beside the terminal insertion through-hole. The latch section insertion through-hole has an engaged portion positioned within the thickness of the rear wall. The terminal holder has a connector terminal extending through the terminal insertion through-hole and a latch section engaged with the engaged portion and positioned within the thickness of the rear wall upon assembly of the terminal holder into the housing.

Abstract: A downsized modular jack with high surface-mounting performance. The modular jack has a housing and a terminal holder assembled thereto. The housing has a rear wall formed with a terminal insertion through-hole extending through a thickness of the rear wall, and a latch section insertion through-hole positioned beside the terminal insertion through-hole. The latch section insertion through-hole has an engaged portion positioned within the thickness of the rear wall. The terminal holder has a connector terminal extending through the terminal insertion through-hole and a latch section engaged with the engaged portion and positioned within the thickness of the rear wall upon assembly of the terminal holder into the housing.

Abstract: Disclosed is an aqueous solution of a chromium salt, in which the oxalic acid content is 8% by weight or less relative to chromium. In the aqueous solution of the chromium salt, the total organic carbon content is 4% by weight or less relative to chromium. The chromium salt is preferably a chromium chloride, a chromium phosphate, or a chromium nitrate. The chromium chloride preferably contains a basic chromium chloride represented by the composition formula Cr(OH)xCly (wherein 0<x?2, 1?y<3, and x+y=3). The chromium phosphate is preferably one represented by the composition formula Cr(H3-3/nPO4)n (wherein n is a number satisfying 2?n?3). The chromium nitrate is preferably a basic chromium nitrate represented by the composition formula Cr(OH)x(NO3)y (wherein 0<x?2, 1?y<3, and x+y=3).

Abstract: Disclosed is an aqueous solution of a chromium salt, in which the oxalic acid content is 8% by weight or less relative to chromium. In the aqueous solution of the chromium salt, the total organic carbon content is 4% by weight or less relative to chromium. The chromium salt is preferably a chromium chloride, a chromium phosphate, or a chromium nitrate. The chromium chloride preferably contains a basic chromium chloride represented by the composition formula Cr(OH)xCly (wherein 0<x?2, 1?y<3, and x+y=3). The chromium phosphate is preferably one represented by the composition formula Cr(H3-3/nPO4)n (wherein n is a number satisfying 2?n?3). The chromium nitrate is preferably a basic chromium nitrate represented by the composition formula Cr(OH)x(NO3)y (wherein 0<x?2, 1?y<3, and x+y=3).

Abstract: There is provided a safety indwelling needle comprising an inner needle unit 1 having an inner needle 11, an inner needle hub 13 provided on a proximal end of the inner needle 11 and a needle protecting member disposed at a distal side of the inner needle hub 13, and an outer needle unit 2 having an outer needle 21, characterized in that the needle protecting member includes an extendable housing unit 31 and the housing unit 31 can partly store the inner needle 11 therein in a state where the housing unit 31 is extended.

Abstract: A safety indwelling needle including an inner needle unit 1 having an inner needle 8, an inner needle hub 14 and a housing member 13 disposed at a distal side of the inner needle hub 14, and an outer needle unit 2 having an outer needle 4, an outer needle hub 5 and an outer needle cap 9, characterized in that the housing member 13 includes openings for allowing penetration of the inner needle 8 at a distal end and a proximal end thereof, an internal space for storing only a distal end portion of the inner needle 8 including a needlepoint 3 thereof when the inner needle 8 is drawn out from the outer needle 4, and a shielding member which automatically closes the opening at the proximal end of the housing member 13 by a magnetic force.

Abstract: Disclosed is an aqueous solution of a chromium salt, in which the oxalic acid content is 8% by weight or less relative to chromium. In the aqueous solution of the chromium salt, the total organic carbon content is 4% by weight or less relative to chromium. The chromium salt is preferably a chromium chloride, a chromium phosphate, or a chromium nitrate. The chromium chloride preferably contains a basic chromium chloride represented by the composition formula Cr(OH)xCly (wherein 0<x?2, 1?y<3, and x+y=3). The chromium phosphate is preferably one represented by the composition formula Cr(H3?3/nPO4)n (wherein n is a number satisfying 2?n?3). The chromium nitrate is preferably a basic chromium nitrate represented by the composition formula Cr(OH)x(NO3)y (wherein 0<x?2, 1?y<3, and x+y=3).

Abstract: There is provided a safety indwelling needle comprising an inner needle unit 1 having an inner needle 11, an inner needle hub 13 provided on a proximal end of the inner needle 11 and a needle protecting member disposed at a distal side of the inner needle hub 13, and an outer needle unit 2 having an outer needle 21, characterized in that the needle protecting member includes an extendable housing unit 31 and the housing unit 31 can partly store the inner needle 11 therein in a state where the housing unit 31 is extended.

Abstract: A pin for forming a hole for inserting an indwelling needle for minimize a load exerted to a living body, and a jig for installing the hole-forming pin from a skin surface are provided.

Abstract: A fired spinel complex oxide is produced by firing a mixture containing a slag by-produced in chromium refining, a reducer, and a silica-containing material, and is essentially composed of: 29 to 40 percent by weight of Fe2O3; 15 to 20 percent by weight of Al2O3; 9 to 14 percent by weight of MgO; 0 to 4 percent by weight of Na2O; 9 to 17 percent by weight of Cr2O3; 14 to 20 percent by weight of SiO2; and 2 percent by weight or less of CaO. The fired spinel complex oxide shows a Cu—K? X-ray diffraction pattern in which the ratio (b/a) of the diffraction peak intensity of the silica-containing material (b) in the vicinity of 2?=26.7° to the {113} plane diffraction peak intensity (a) in the vicinity of 2?=36° is 0.1 or less.

Abstract: There is provided a safety indwelling needle comprising an inner needle unit 1 having an inner needle 11, an inner needle hub 13 provided on a proximal end of the inner needle 11 and a needle protecting member disposed at a distal side of the inner needle hub 13, and an outer needle unit 2 having an outer needle 21, characterized in that the needle protecting member includes an extendable housing unit 31 and the housing unit 31 can partly store the inner needle 11 therein in a state where the housing unit 31 is extended.

Abstract: A safety indwelling needle including an inner needle unit 1 having an inner needle 8, an inner needle hub 14 and a housing member 13 disposed at a distal side of the inner needle hub 14, and an outer needle unit 2 having an outer needle 4, an outer needle hub 5 and an outer needle cap 9, characterized in that the housing member 13 includes openings for allowing penetration of the inner needle 8 at a distal end and a proximal end thereof, an internal space for storing only a distal end portion of the inner needle 8 including a needlepoint 3 thereof when the inner needle 8 is drawn out from the outer needle 4, and a shielding member which automatically closes the opening at the proximal end of the housing member 13 by a magnetic force.

Abstract: A catheter for artificial insemination which is a hollow cylindrical catheter having open ends at both ends, the catheter comprising a small diameter portion forming a distal end portion, a large diameter portion forming a proximal end portion and a tapered portion connecting the small diameter portion and the large diameter portion, a total inner volume of the catheter being from 0.2 to 1.0 ml.

Abstract: A fired spinel complex oxide is produced by firing a mixture containing a slag by-produced in chromium refining, a reducer, and a silica-containing material, and is essentially composed of: 29 to 40 percent by weight of Fe2O3; 15 to 20 percent by weight of Al2O3; 9 to 14 percent by weight of MgO; 0 to 4 percent by weight of Na2O; 9 to 17 percent by weight of Cr2O3; 14 to 20 percent by weight of SiO2; and 2 percent by weight or less of CaO. The fired spinel complex oxide shows a Cu—K&agr; X-ray diffraction pattern in which the ratio (b/a) of the diffraction peak intensity of the silica-containing material (b) in the vicinity of 2&thgr;=26.7° to the {113} plane diffraction peak intensity (a) in the vicinity of 2&thgr;=36° is 0.1 or less.

Abstract: An infusion container comprising a communication port capable of being connected with a syringe, a container main body, a communication channel for providing communication between the inside of the container main body and the inner lumen of the communication port, and a sterilization filter provided in the communication channel, wherein the communication port is closed with a rubber stopper provided with a slit allowing the top end tip of the syringe to pass therethrough and the communication channel is closed with a closing means capable of being easily opened.