Abstract: A laser cutting method for metal foil includes: cutting a processing target by laser by intermittently applying a pulse of laser beam to a surface of a metal foil serving as the processing target at a frequency of 1 [MHz] or less.

Abstract: A welding method includes: emitting a laser beam to a workpiece including a metal; and welding a portion of the workpiece to which the laser beam is emitted by melting. The laser beam includes a main power region and at least one auxiliary power region, power in the main power region is equal to or higher than power in each of the at least one auxiliary power region, and a power ratio of the power in the main power region and a total of the power in the at least one auxiliary power region is within a range of 144:1 to 1:1.

Abstract: A welding method includes: irradiating a surface of a workpiece with a laser light that moves relatively to the workpiece in a sweep direction; and performing welding by melting a part of the workpiece irradiated with the laser light. The laser light includes a plurality of beams, the plurality of beams include at least one main beam and at least one sub beam smaller in power than the main beam, a main power region including the at least one main beam and a sub power region including the at least one sub beam are formed on the surface, and a minimum distance between centers of adjacent ones of the plurality of beams on the surface is 75 ?m or less.

Abstract: A welding method includes: placing a workpiece including aluminum in a region to which laser light is emitted; and irradiating the laser light to the workpiece to melt an irradiated portion of the work piece to perform welding. Further, the laser light is formed of a main beam and plural auxiliary beams, and the plural auxiliary beams are positioned so as to surround a periphery of the main beam.

Abstract: A welding method includes: emitting laser beam toward a workpiece including a metal to melt and weld a part of the workpiece, the part being where the laser beam has been emitted to. Further, the laser beam includes a main power region and at least one auxiliary power region, a power of the main power region is larger than a power of each of the at least one auxiliary power region, and a ratio between the power of the main power region and the total of powers of the at least one auxiliary power region is in a range of 144:1 to 1:9.

Abstract: A welding method includes a step of, while irradiating laser beam toward a workpiece, relatively moving the laser beam and the workpiece and, while sweeping the laser beam on the workpiece, melting the workpiece in an irradiated portion to perform welding. Further, the laser beam is configured by a main power region and a sub-power region, at least a part of the sub-power region is present on a sweeping direction side of the main power region, a power density of the main power region is equal to or higher than a power density of the sub-power region, and the power density of the main power region is at least power density that can generate a keyhole.

Abstract: A welding method includes: layering two or more plate materials each including a plating plate material having a preform on a surface of which a plating layer is formed to form a workpiece; disposing the workpiece in a region to be irradiated with a processing laser beam; generating the processing laser beam having a power distribution shape in which two or more power regions are disposed along a predetermined direction in a plane perpendicular to a light traveling direction; irradiating a surface of the workpiece with the processing laser beam; and moving the processing laser beam and the workpiece relatively while performing the irradiation, and melting an irradiated area of the workpiece to perform welding while sweeping the processing laser beam in the predetermined direction on the workpiece during a swing of the processing laser beam.

Abstract: A welding method includes: disposing a workpiece formed by stacking a plurality of metal foils in an area to be irradiated with laser light that contains a plurality of beams; irradiating a surface of the workpiece with the beams of the laser light by dispersing positions of the beams such that centers of the beams do not overlap with each other within a prescribed area on the surface; melting an irradiated part of the workpiece and performing welding; and setting each of the beams to have a power density with which no hole opens in the metal foils, and setting the power density of the beams and dispersing irradiating positions to be emitted so as to form a weld pool penetrating the workpiece by the beams.

Abstract: A welding method includes: arranging a workpiece containing copper in a region to be irradiated with laser light; and irradiating the workpiece with the laser light to melt and weld an irradiated portion of the workpiece. Further, the laser light is formed of a main beam and a plurality of sub beams, and a ratio of power of the main beam to total power of the plurality of sub beams is 72:1 to 3:7.

Abstract: A welding method includes: forming a workpiece by stacking plated sheet members having a plating layer formed on a surface of a base material; disposing the workpiece in an area to be irradiated with laser light; irradiating a surface of the workpiece with a plurality of beams by dispersing positions such that centers of the beams do not overlap with each other within a prescribed area on the surface; while continuing the irradiation, relatively moving the beams and the workpiece and sweeping the beams on the workpiece so as to melt an irradiated part of the workpiece for performing welding; and setting a distance between the beams to be emitted such that weld pools formed in the workpiece by irradiation of each of the beams overlap with each other.

Abstract: A method of welding a workpiece by using a laser is provided which includes disposing a workpiece in a region to be irradiated with laser light from a laser oscillator; and irradiating the workpiece with the laser light from the laser oscillator such that an irradiated portion of the workpiece is melted and welded while sweeping the laser light over the workpiece by relatively moving the laser light and the workpiece. The laser light is formed of a main beam and an auxiliary beam, at least part of the auxiliary beam being disposed anteriorly in a sweep direction, and the main beam has a power density equal to or greater than a power density of the auxiliary beam.

Abstract: In a female crimp terminal including a pressure-bonding section for permitting pressure-bonding and connection to an aluminum core wire of an insulated wire, the pressure-bonding section is configured in a hollow sectional shape by a plate material, and a long length direction weld portion in a long length direction is welded, a forward part in the hollow sectional shape is caused to take an almost flat plate-shaped sealing shape and a width direction weld portion in a width direction is welded.

Abstract: In a female crimp terminal including a pressure-bonding section for permitting pressure-bonding and connection to an aluminum core wire of an insulated wire, the pressure-bonding section is configured in a hollow sectional shape by a plate material, and a long length direction weld portion in a long length direction is welded, a forward part in the hollow sectional shape is caused to take an almost flat plate-shaped sealing shape and a width direction weld portion in a width direction is welded.

Abstract: Benzamidine derivatives of the following formulae or analogs thereof, i.e., pharmaceutically acceptable salts thereof, are provided.

Abstract: It is provided a method for producing a subunit peptide originating from an oligomeric protein having disulfide bonds within a subunit and between subunits. The method comprises producing a subunit originating from an oligomeric protein having disulfide bonds within a subunit and between subunits by the following steps: (a) a step of refolding the subunit by denaturing the oligomeric protein or its subunit in a solution with a protein-denaturing agent and removing the denaturing agent from the solution in the presence of polyoxyalkyl polyether having a functional group that reacts with a thiol group; and (b) a step of isolating the subunit bonded to the polyoxyalkyl polyether from the solution.

Abstract: A method for producing a protein having an antithrombotic activity, which comprises replacing, in a protein that has an amino acid sequence having a homology of not less than 30% to the amino acid sequence of SEQ ID NO: 1 and forms a higher order structure composed of a first ? strand (?1), a first a helix (?1), a second ? helix (?2), a second ? strand (?2), a loop, a third ? strand (?3), a fourth ? strand (?4) and a fifth ? strand (?5) in this order from the amino terminus, at least one amino acid residue in a region from ?2 to ?2 and/or a region from ?3 to ?4 so that electric charge of the amino acid residue is changed towards positive direction.

Abstract: The present invention provides benzodiazepine derivatives of the following formula, analogs thereof and pharmaceutically acceptable salts thereof. The compounds of the present invention have an excellent effect of inhibiting activated blood-coagulation factor X. These compounds are usable as agents for treating various diseases concerned with the activated blood-coagulation factor X.

Abstract: Aminoisoquinoline derivatives of the following formulae or analogs thereof and pharmaceutically acceptable salts thereof are provided. These compounds have an excellent effect of inhibiting activated blood-coagulation factor X, and they are useful as anticoagulants or agents for preventing or treating thrombi or emboli.

Abstract: Benzamidine derivatives of the following formula, analogs thereof and pharmaceutically acceptable salts thereof are provided. These compounds have an effect of inhibiting activated blood-coagulation factor X, and they are useful as agents for preventing or treating various diseases caused by thrombi or emboli.

Abstract: A benzamidine derivative of the following formula, analogs thereof and pharmaceutically acceptable salts thereof have an effect of inhibiting the blood coagulation based on their excellent effect of inhibiting activated blood-coagulation factor X. Thus, a blood-coagulation inhibitor or an agent for preventing or treating thrombosis or embolism, containing one of those compounds as the active ingredient, is provided.