Abstract: A wire electric discharge machine includes a wire electrode; a machining power supply that supplies a machining current to between the wire electrode and a workpiece. The machine further includes a first power feed contact and a second power feed contact that respectively feed power to the wire electrode; a first machining-current loop in which a first machining current flows from the first power feed contact toward the workpiece; a second machining-current loop in which a second machining current flow from the second power feed contact toward the workpiece; an impedance switching circuit that is provided in at least any one of the first machining-current loop and the second machining-current loop; and a control unit that controls a flow ratio of the first machining current and the second machining current by changing an impedance of the impedance switching circuit.

Abstract: A ceramic heater is provided that has a heat generating resistor and a lead member which supplies electric power to the heat generating resistor buried in a ceramic body, and exhibits excellent durability by controlling the cross sectional shape and plan configuration of the heat generating resistor.

Abstract: The invention concerns a vehicle outside mirror module with a heatable mirror glass assembly group, whereby the mirror glass assembly group exhibits at least one mirror glass and an at least one layered, foil-like heating foil, flexibly configured on the back side of said mirror glass, provided with power supply points. To this end, there are configured or integrated, on or in the heating foil, at least one means of lighting and at least one additional power supply point. On or in the heating foil, between the one or the several lighting means and the one or the additional power supply points, are configured or integrated conductive tracks providing current which contact said power supply points. Each lighting means has at least one main light exit surface whose spectral centroid lies above the mirror back surface.

Abstract: An apparatus for improving surface smoothness and internal firmness of cylindrical food products is provided. The apparatus includes a conveyor belt for conveying cylindrical food products to a concave rolling zone below an output end, such that each of the cylindrical food products rolls in the rolling zone for an appropriate amount of time. Thus, surface smoothness and internal firmness of each of the cylindrical food products are improved.

Abstract: There are provided a heater unit and a battery structure with heater, which are capable of heating the battery structure appropriately and preventing a heater (part or whole of the heater) itself from excessively increasing in temperature. A first heater unit is provided with a first sheet heater, a first holding member holding it, and a first sheet placed between a lower surface of a first heater and the first holding member in such a manner as to be deformable in at least a direction of thickness of the first heater. The first heater is deformed when the first heater unit is fixed to the battery pack 50, thereby pressing the lower surface of the first heater to bring an upper surface of the first heater into close contact with an outer surface (a surface to be heated) of a spaced part of the battery pack.

Abstract: A heating cooking device includes a top plate, a heating unit, a touch key including a first electrode and a second electrode, an input unit for applying an alternating current (AC) voltage to the second electrode and for outputting a voltage changing according to a change of the AC voltage when the first electrode is pushed, a detector for outputting a first signal if the voltage output from the input unit changes from the reference value to the first value, an operation judging unit for outputting a second signal according to a rate of change of the voltage output from the input unit, and a controller operable to perform control of the heating unit based on the first and second signals. The controller is operable to perform control of energization of the heating unit if the controller does not receive the second signal after receiving the first signal, and not to perform the control of the energization of the heating unit if the controller receives the second signal after receiving the first signal.

Abstract: A laser machine tool for carrying out cutting or welding operations includes a laser head carried by a moving member which is displaceable with respect to a workpiece along two horizontal cartesian axes in a relatively wide space with movements involving relatively low accelerations. The laser head is displaceable on the moving member, along a pair of horizontal cartesian axes in a relatively restricted space with high speeds and accelerations, via a pair of slides to which respective balancing weights are operatively associated.

Abstract: The present invention makes a proposal of a heating component for a pipe joint which can be easily mounted on a pipe joint and also can stabilize the assembly quality to the pipe joint. The heating component for a pipe joint is characterized in that the heating component for a pipe joint has partially thereon fitting portions each having an inner face shape fitted with a part of an outer shape of the pipe joint, and also, a holding recess portion for holding therein a heating wire is formed on an inner face portion other than the fitting portions; when the heating wire is held in the holding recess portion, and then, the heating component for piping joint is mounted to the joint by fitting the fitting portions with the parts of the outer shape of the joint, the heating wire held in the holding recess portion comes in contact with the pipe joint.

Abstract: A method for positioning a dicing line includes the steps of: bonding an adhesive tape on a semiconductor layer of a wafer; detecting an image of the wafer by an imaging device on the basis of a light transmitted through the wafer; and determining the dicing line of the wafer on the basis of a position of an image of a marker, which is disposed on the semiconductor layer of the wafer. The image of the marker is obtained by image recognition from the detected image of the wafer.

Abstract: There is provided a laser processing apparatus, a multilayer printed wiring board manufacturing apparatus, and a manufacturing method to form via holes of ultra-fine diameter. The laser beam from the CO2 laser oscillator (60) is converted to the shortened wavelength beam by a tellurium crystal (94) to control diffraction of the laser beam. Simultaneously, when the laser beam is condensed, a limit value of the condensation limit is reduced. Thereby, the spot diameter of laser beam is reduced and a hole for via hole is bored on the interlayer insulation resin on a substrate (10). Therefore, even when the laser beam output is raised to form a deeper hole, the hole diameter is not widened and thereby a hole for a small diameter via hole can be formed.

Abstract: A work station for an electrical discharge machining apparatus, including a first mechanism for retaining a workpiece in a predetermined position, at least one electrode for forming a feature on the workpiece, and a second mechanism for positioning the electrode in a manner that is movable into and out of engagement with a designated portion of the workpiece. A portion of the second mechanism is connected to the first mechanism so as to automatically align the electrode with the designated portion of the workpiece. The second mechanism is configured so that the electrode is electrically insulated from the workpiece.

Abstract: A wire electric discharge machine capable of taper machining with an improved accuracy. A reference wire correction amount d set in advance is determined to be a proper value for a wire-diameter correction amount for a speed control plane, and adjustment amounts for adjusting the reference wire correction amount for the upper and lower surfaces of a workpiece are determined to be proportional to (1-Lu/Lm) and (1-Ll/Lm), respectively, where Lu, Lm and Ll are machining distances at the upper surface, speed control plane and lower surface, respectively. As a proportionality coefficient, a reference adjustment amount e is set in advance. Using adjustment amounts e(1-Lu/Lm) and e(1-Ll/Lm), wire-diameter correction amounts for the workpiece upper and lower surfaces are determined to be d+e(1-Lu/Lm) and d+e(1-Ll/Lm).

Abstract: A method of laser micro-machining a work piece, with a laser, including the steps of: locating the workpiece on a carrier forming a part of a transport system, the carrier can be displaced along a path parallel to an X-axis of the workpiece, a Y-axis lying transverse the path, and a Z-axis lying transverse the path; focusing an image generated by an output beam from the laser at a working datum position defined relative to the path which path is established by the transport system to traverse the first datum position; a plane defined by the X- and Y-axis lying substantially perpendicular to the output beam; and displacing the workpiece along the path by way of the transport system so as to enable the work-piece to be subject to micro-machining by way of the laser.

Abstract: A processing apparatus contains a holding member for holding a workpiece, and a laser beam shining member for shining a laser beam at the workpiece held on the holding member. The holding member has a holding plate and the workpiece is placed on the holding plate. The holding plate is composed of a plate-shaped body formed from polychlorotrifluoroethylene, and a film formed from polytetrafluoroethylene is superposed on an upper surface of the plate-shaped body.

Abstract: A device for the simultaneous welding of work pieces and containing a plurality of laser light sources. The laser light sources are positioned on at least one circle in such a manner that the partial beams emitted by the laser light sources produce at least one region that lies radially further inwards. The region, in some areas, has a substantially constant luminosity and the work pieces are introduced into the region.

Abstract: A laser annealing system and apparatus, which includes a laser light source, which emits a laser beam through an a-Si layer on a substrate, an optical unit which forms an optical path along which the laser beam is transmitted through a subject to be annealed, and a first reflecting component, which reflects the laser beam that has been transmitted through the subject so that a direction of the laser beam is reversed along the optical path along which the laser beam is transmitted through the subject, to irradiate the subject. Since an operation in which energy is absorbed is repeated plural times when the laser beam is transmitted through the a-Si layer, input energy of the laser beam can be utilized without waste.

Abstract: Methods, apparatuses, devices, and/or systems for laser net shape manufacturing may make use of a nozzle that includes a main body with a thermal channel, a conducting channel and a gas distribution head. The thermal channel is at least partially within the main body and includes an aperture for passing thermal energy therethrough. The conducting channel includes a conducting outlet aperture that is a located adjacent to the thermal outlet aperture, and powder material can be passed through the conducting outlet aperture. The gas distribution head is capable of distributing shielding gas in a distribution path surrounding the conducting outlet aperture.

Abstract: A laser cutting apparatus capable of properly cutting a workpiece having a large thickness with a laser beam. The laser cutting apparatus includes a gas laser oscillator; and an optical system including a collective lens and transmitting and collecting a laser beam generated in the gas laser oscillator to irradiate a workpiece with the laser beam. An index M2 for evaluating a beam quality of the laser beam emerging from the optical system, with which the workpiece is irradiated, is in a range of 2.8 to 4.

Abstract: A beam welding apparatus for welding a housing and transparent cover of a vehicular lighting device via beam welding has a cover fixing jig having a beam transmitting part, configured to fix a position of a transparent cover and configured to press the transparent cover toward a housing with a welding part of the transparent cover overlaid on a welding part of the housing while it is arranged on the transparent cover. The beam welding apparatus also has a beam irradiating part configured to irradiate beams onto the welding part of the housing through the beam transmitting part and the transparent cover to excite and heat the welding part of the housing. The beam transmitting part has a shielding part configured to shield unnecessary luminous flux among the beams irradiated toward the welding part of the housing from the beam irradiating part.

Abstract: A process for producing a die for forming a honeycomb structure having slits having hexagonal honeycomb cell shape 5 at one of surfaces 7 of a plate-like base material for die 2, and backside holes 4 each communicating with respective slits 5 at the other surface 8, which comprises the steps of forming holes 3 for dielectric fluid each having an opening diameter smaller than the width of the slit 5 in a predetermined depth at the one of surfaces 7 thereof, and holes 4 communicating with holes 3 at the rest surface 8; and then passing a dielectric fluid 10 for electrical discharge machining from the surface 8 to the surface 7 via holes 3 and 4 until the machining proceeds to a position communicating with each hole 4; thereby, the slits 5 are formed at the surface 7 of the base material 2.