Abstract: The printed wiring board substrate includes an insulating layer, a first copper foil, and a second copper foil. The insulating layer has a first main surface and a second main surface opposite to the first main surface. The insulating layer includes a plurality of polyimide layers and a plurality of fluororesin layers. The total number of the plurality of polyimide layers and the plurality of fluororesin layers is 5 or more. Each of the plurality of polyimide layers and each of the plurality of fluororesin layers are alternately stacked along a thickness direction of the insulating layer. One of the plurality of fluororesin layers constitutes a first outermost layer which is an outermost layer on the side of the first main surface. Another one of the plurality of fluororesin layers constitutes a second outermost layer which is an outermost layer on the side of the second main surface.

Abstract: A secondary battery includes: a positive electrode current collector; a negative electrode current collector; a positive electrode electrolytic solution part provided so as to be in contact with the positive electrode current collector, the positive electrode electrolytic solution part containing a positive electrode electrolytic solution; and a negative electrode electrolytic solution part provided so as to be in contact with the negative electrode current collector, the negative electrode electrolytic solution part containing a negative electrode electrolytic solution. The positive electrode electrolytic solution contains a positive electrode active material, an electrolyte salt, and a non-aqueous solvent containing a first solvent. The negative electrode electrolytic solution contains a negative electrode active material, an electrolyte salt, and a non-aqueous solvent containing a second solvent.

Abstract: A turbocharger includes: a shaft; a rolling bearing including an inner ring mounted on the shaft and an outer ring arranged around the inner ring; a housing including a bearing hole accommodating the rolling bearing; a compressor impeller provided on the shaft at an outside the bearing hole; and an annular bearing retainer plate arranged between the bearing hole and the compressor impeller in the central axis direction of the shaft and including an end face facing a side face of the outer ring, the end face including an annular circumferential oil groove continuously extending along the entire circumferential direction of the shaft and a protrusion located inside the circumferential oil groove in a radial direction of the shaft and protruding in a central axis direction of the shaft.

Abstract: A conductor wire insulating film separating method disclosed includes: a preparing step involving preparing rectangular cross-section coil pieces each of which is a conductor wire coated with insulating film and used to provide a stator coil of rotary electric machine; a delivering-in step involving, after the preparing step, delivering coil pieces into a laser separator, with coil pieces aligned such that extremities thereof are adjacent to each other; an applying step involving, after the delivering-in step, continuously applying film removing laser to the extremities of the aligned coil pieces such that the laser is applied to one extremity and then to another extremity, thus removing at least portions of the insulating film from the extremities of the coil pieces; and a delivering-out step involving delivering the coil pieces, from which the at least portions of the insulating film have been removed by the applying step, out of the laser separator.

Abstract: A measurement system in which an object that moves toward a processing position serves as a measurement target. In the processing position a processing device is capable of applying processing to the object. The measurement system includes: a mark detection device that has an irradiation system to irradiate a mark provided at the object that is moving with a measurement beam while moving the measurement beam; and a beam receiving system to receive a beam from the mark. The irradiation system irradiates the object with the measurement beam while moving the measurement beam, during a period when the object moves toward the processing position.

Abstract: In a beam irradiation apparatus in which a movable body holds an object, a mark detection system detects a first mark on the movable body while moving the movable body in a first direction and changing an irradiation position of a measurement beam in the first direction, the mark detection system detects a second mark while moving the movable body in the first direction and changing the irradiation position of the measurement beam in the first direction, a controller controls a position of the movable body in a second direction intersecting the first direction during a time period between the detection of the first mark and the detection of the second mark, and the controller controls the movement of the movable body to adjust a positional relation between the object on the movable body and a processing beam, based on results of the detection of the first and second marks.

Abstract: A bearing includes: an annular main body through which a shaft is inserted; a plurality of oil supply grooves included on an inner curved surface of the main body and extending in an axial direction of the main body; a thrust bearing surface included on an end surface of the main body; a plurality of tapered portions included on the thrust bearing surface separated from an outer peripheral edge of the thrust bearing surface at intervals in a circumferential direction of the main body and communicating with the oil supply grooves, the tapered portions each becoming shallower as it extends in the circumferential direction; and an oil discharge groove included on the thrust bearing surface, passing through one tapered portion among the plurality of tapered portions, and connecting an oil supply groove and the outer peripheral edge.

Abstract: A turbocharger includes: a shaft; a rolling bearing including an inner ring mounted on the shaft and an outer ring arranged around the inner ring; a housing including a bearing hole accommodating the rolling bearing; a compressor impeller provided on the shaft at an outside the bearing hole; and an annular bearing retainer plate arranged between the bearing hole and the compressor impeller in the central axis direction of the shaft and including an end face facing a side face of the outer ring, the end face including an annular circumferential oil groove continuously extending along the entire circumferential direction of the shaft and a protrusion located inside the circumferential oil groove in a radial direction of the shaft and protruding in a central axis direction of the shaft.

Abstract: A bearing includes: an annular main body through which a shaft is inserted; a plurality of oil supply grooves included on an inner curved surface of the main body and extending in an axial direction of the main body; a thrust bearing surface included on an end surface of the main body; a plurality of tapered portions included on the thrust bearing surface separated from an outer peripheral edge of the thrust bearing surface at intervals in a circumferential direction of the main body and communicating with the oil supply grooves, the tapered portions each becoming shallower as it extends in the circumferential direction; and an oil discharge groove included on the thrust bearing surface, passing through one tapered portion among the plurality of tapered portions, and connecting an oil supply groove and the outer peripheral edge.

Abstract: In a beam irradiation apparatus in which a movable body holds an object, a mark detection system detects a first mark on the movable body while moving the movable body in a first direction and changing an irradiation position of a measurement beam in the first direction, the mark detection system detects a second mark while moving the movable body in the first direction and changing the irradiation position of the measurement beam in the first direction, a controller controls a position of the movable body in a second direction intersecting the first direction during a time period between the detection of the first mark and the detection of the second mark, and the controller controls the movement of the movable body to adjust a positional relation between the object on the movable body and a processing beam, based on results of the detection of the first and second marks.

Abstract: In a beam irradiation apparatus in which a movable body holds an object, a mark detection system detects a first mark on the movable body while moving the movable body in a first direction and changing an irradiation position of a measurement beam in the first direction, the mark detection system detects a second mark while moving the movable body in the first direction and changing the irradiation position of the measurement beam in the first direction, a controller controls a position of the movable body in a second direction intersecting the first direction during a time period between the detection of the first mark and the detection of the second mark, and the controller controls the movement of the movable body to adjust a positional relation between the object on the movable body and a processing beam, based on results of the detection of the first and second marks.

Abstract: A conductor wire insulating film separating method disclosed includes: a preparing step involving preparing rectangular cross-section coil pieces each of which is a conductor wire coated with insulating film and used to provide a stator coil of rotary electric machine; a delivering-in step involving, after the preparing step, delivering coil pieces into a laser separator, with coil pieces aligned such that extremities thereof are adjacent to each other; an applying step involving, after the delivering-in step, continuously applying film removing laser to the extremities of the aligned coil pieces such that the laser is applied to one extremity and then to another extremity, thus removing at least portions of the insulating film from the extremities of the coil pieces; and a delivering-out step involving delivering the coil pieces, from which the at least portions of the insulating film have been removed by the applying step, out of the laser separator.

Abstract: In a beam irradiation apparatus in which a movable body holds an object, a mark detection system detects a first mark on the movable body while moving the movable body in a first direction and changing an irradiation position of a measurement beam in the first direction, the mark detection system detects a second mark while moving the movable body in the first direction and changing the irradiation position of the measurement beam in the first direction, a controller controls a position of the movable body in a second direction intersecting the first direction during a time period between the detection of the first mark and the detection of the second mark, and the controller controls the movement of the movable body to adjust a positional relation between the object on the movable body and a processing beam, based on results of the detection of the first and second marks.

Abstract: A measurement system in which an object that moves toward a processing position serves as a measurement target. In the processing position a processing device is capable of applying processing to the object. The measurement system includes: a mark detection device that has an irradiation system to irradiate a mark provided at the object that is moving with a measurement beam while moving the measurement beam; and a beam receiving system to receive a beam from the mark. The irradiation system irradiates the object with the measurement beam while moving the measurement beam, during a period when the object moves toward the processing position.

Abstract: The bearing structure includes an insertion member, which is inserted through a pin hole (insertion hole) of a bearing housing (housing) in a direction intersecting an axial direction of a shaft, has one end side inserted between a pair of radial bearing surfaces of a main body portion and another end side inserted through the insertion hole, and has a through hole passing from one end to another end.

Abstract: An insulation film peeling method which radiates laser light onto a front end portion of an insulation film-coated conducting wire including a conducting wire and an insulation film in a longitudinal direction, and which peels a part of the insulation film up to a peeling boundary of a predetermined regulated peeling length, includes performing a rectilinear scan of a first region, in which a radiation position of the laser light moves from one side toward the other side and then moves from the other side toward the one side upon reaching the other side, and performing a unidirectional scan of a second region, in which the radiation of the laser light is performed from one side toward the other side and then the radiation position returns to the one side in a state in which the radiation of the laser light stops upon reaching the other side.

Abstract: A method of producing a drill has a step of preparing a workpiece to be processed to produce a drill, and a step of forming a ground groove. The workpiece has a cutting blade, a chip discharge flute helically extending, and a rake surface which have been formed therein. The drill is rotated around a drill axial center. The formation step rotates a rotary whetstone around its whetstone axial center, and grinds the rake surface to form the ground groove along the chip discharge flute. The formation step uses the rotary whetstone so that the whetstone axial center intersects a longitudinal direction of the chip discharge flute. The rotary whetstone has a rotating body shape projecting in a radial outward direction of the rotary whetstone axial center and around the rotary whetstone axial center.

Abstract: A power converter includes: a plurality of power modules that houses semiconductor elements for electric power conversion; a pair of holding plates sandwiching a stacked body of the plurality of power modules in the first direction; a pair of connecting beams that connects the pair of holding plates respectively on both side ends of the stacked body in the second direction intersecting the first direction; and a substrate connected to control terminals of the power modules. At least one of the pair of holding plates is provided with a positioner to position the substrate.

Abstract: A power converter includes: a plurality of power modules that houses semiconductor elements for electric power conversion; a pair of holding plates sandwiching a stacked body of the plurality of power modules in the first direction; a pair of connecting beams that connects the pair of holding plates respectively on both side ends of the stacked body in the second direction intersecting the first direction; and a substrate connected to control terminals of the power modules. At least one of the pair of holding plates is provided with a positioner to position the substrate.

Abstract: In a beam irradiation apparatus in which a movable body holds an object, a mark detection system detects a first mark on the movable body while moving the movable body in a first direction and changing an irradiation position of a measurement beam in the first direction, the mark detection system detects a second mark while moving the movable body in the first direction and changing the irradiation position of the measurement beam in the first direction, a controller controls a position of the movable body in a second direction intersecting the first direction during a time period between the detection of the first mark and the detection of the second mark, and the controller controls the movement of the movable body to adjust a positional relation between the object on the movable body and a processing beam, based on results of the detection of the first and second marks.