Abstract: With conventional device, the quantity of complex defects differs with each semiconductor device because the concentration of impurities intrinsically contained differs for each silicon wafer. Consequently, there is an undesirable variation in characteristics among the semiconductor devices. The invention provides a method for manufacturing PIN type diode which comprises an intermediate semiconductor region in which complex defects are formed. The method comprises introducing impurities (for example, carbon), which are the sane kind of impurities intrinsically contained in the intermediate semiconductor region, into the intermediate semiconductor region, and irradiating the intermediate semiconductor region with helium ions to form point defects.

Abstract: There is constructed a constitution including an exhaust heat fired regenerator constituting a heat source by exhaust heat from external machine generating the exhaust heat, a heat fluid flow path for making a fluid having the exhaust heat constituting the heat source or a fluid recovering the exhaust heat flow to the exhaust heat fired regenerator, flow path open/close device provided at the heat fluid flow path for controlling to make the heat fluid flow to the exhaust heat fired regenerator 1 and cut off the fluid therefrom by opening and closing the exhaust fluid flow path, first regenerator temperature detector for detecting temperature of the exhaust heat fired regenerator, a directly fired regenerator constituting a heat source by combustion heat of a burner, second regenerator temperature detector for detecting temperature of the directly fired regenerator, heat medium temperature detector for detecting temperature of a heat medium cooled or heated by an evaporator and controller for controlling to op

Abstract: An engine generator can have an engine duct for releasing to the outside a cooling air which is used to cool an engine and a muffler, and a generator duct for releasing to the outside a cooling air which is sued to cool a generator. The engine duct and the generator duct can be formed in one body as an exhaust duct. The muffler and the generator can be laterally aligned in parallel with each other, and the engine duct and the generator duct can be located in a manner such that the directions of release of the cooling winds from the engine duct and the generator duct are parallel to each other. The exhaust duct can be located with the generator duct secured to a crankcase. An opening of the engine duct, and an opening of the generator duct can be laterally aligned with each other, and the opening of the generator duct can be positioned above the generator.

Abstract: A framework of an engine generator can be made up of a front frame and a rear frame which can be made from aluminum die castings. Securing frames can be configured to removeably connect the opposing bottom edges of the front frame and the rear frame, on their both sides through bolts and nuts. Handles can be configured to removeably connect the opposing top edges of the front frame and the rear frame, on their both sides through bolts and nuts. The front frame and the rear frame can be formed integral with rib portions for mounting panels respectively, and handle mounting portions and respectively, for mounting the handles.

Abstract: An enclosure of the engine generator can be configured such that a front panel, top panel, intake cover, exhaust cover, rear panel, and bottom panel are attached to a framework made up of a front frame, a rear frame, handles and securing frames. Handholds can be provided in one piece in the undersurface of the bottom panel. The portions in the upper surface of the bottom panel corresponding to the handholds can be used as a pedestal for placing a controller. The pedestal can include two rests, spaced at a constant interval, between which an air guide passage can be formed. The handle and the handholds can be arranged in parallel.

Abstract: Mounts can be provided at the four corners of a bottom portion of an engine generator. Projections for mounting handles can be provided at a top portion of the engine generator in vertical alignment above the mounts. The bottom face of each mount can be formed with a fitting groove having an open end. Fitting the projections in the fitting grooves allows stacking plural engine generators. The mount can be constituted with a bottom portion, a side portion, and a reinforcing metal fitting. The projections can be disposed on a front frame and a rear frame, respectively, each formed in one body. The mounts can also be attached to the front frame and the rear frame.

Abstract: A power generator system incorporates a generator driven by an engine. A case houses the generator and the engine. A controller communicates with the engine so as to control the speed at which the engine drives the generator. A temperature sensor is disposed so as to sense a temperature within the case and to send a temperature signal to the controller. The controller controls the speed of the engine depending upon at least the temperature signal received from the temperature sensor.

Abstract: A power generator incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. A fan draws in cooling air through one or more cooling air vents to cool a battery, a DC/DC converter, an electronic module, the engine, the generator, and the muffler. The insulation cover provides quiet operation and efficient cooling of the engine-driven generator.

Abstract: A power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. An engine crankcase cover mounts the generator close to the engine to promote a compact construction while allowing sufficient cooling of the engine, the generator, and a muffler. A fan draws in cooling air through one or more cooling air vents to cool a battery, an electronic control unit, the engine, the generator, and the muffler. The insulation cover provides quiet operation and efficient cooling of the power generator unit.

Abstract: There is constructed a constitution including an exhaust heat fired regenerator constituting a heat source by exhaust heat from external machine generating the exhaust heat, a heat fluid flow path for making a fluid having the exhaust heat constituting the heat source or a fluid recovering the exhaust heat flow to the exhaust heat fired regenerator, flow path open/close device provided at the heat fluid flow path for controlling to make the heat fluid flow to the exhaust heat fired regenerator 1 and cut off the fluid therefrom by opening and closing the exhaust fluid flow path, first regenerator temperature detector for detecting temperature of the exhaust heat fired regenerator, a directly fired regenerator constituting a heat source by combustion heat of a burner, second regenerator temperature detector for detecting temperature of the directly fired regenerator, heat medium temperature detector for detecting temperature of a heat medium cooled or heated by an evaporator and controller for controlling to op

Abstract: There is provided an absorption chiller-heater comprising an exhaust gas flow path in which an exhaust gas flows; an exhaust gas fired regenerator provided on the exhaust gas flow path so as to be heated by the exhaust gas; a cooling medium solution passage supplying a first solution of a cooling medium which is collected by an absorber to the exhaust gas fired regenerator; and an exhaust gas heat collector provided on the cooling medium solution passage for carrying out heat exchange between the first solution and the exhaust gas.

Abstract: A power generator incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. A fan draws in cooling air through one or more cooling air vents to cool a battery, a DC/DC converter, an electronic module, the engine, the generator, and the muffler. The insulation cover provides quiet operation and efficient cooling of the engine-driven generator.

Abstract: A power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. An engine crankcase cover mounts the generator close to the engine to promote a compact construction while allowing sufficient cooling of the engine, the generator, and a muffler. A fan draws in cooling air through one or more cooling air vents to cool a battery, an electronic control unit, the engine, the generator, and the muffler. The insulation cover provides quiet operation and efficient cooling of the power generator unit.

Abstract: A power generator system incorporates a generator driven by an engine. A case houses the generator and the engine. A controller communicates with the engine so as to control the speed at which the engine drives the generator. A temperature sensor is disposed so as to sense a temperature within the case and to send a temperature signal to the controller. The controller controls the speed of the engine depending upon at least the temperature signal received from the temperature sensor.

Abstract: A semiconductor laser having a plurality of semiconductor laser chips laminated by solder layers which cause no interference with laser beams is provided. To this end, each of the semiconductor laser chips has a solder sump recess formed in the surface to be soldered at an end adjacent to a laser beam radiating surface and extending through portions of the chip except an active layer.

Abstract: An invert rectifier is provided in which: cooling medium vapor sent from the evaporator is contacted with a weak solution sent from the regeneration unit, and the temperature of cooling medium vapor and the vapor component of absorbent are increased by the action of invert rectification, so that the enthalpy of cooling medium vapor supplied to the vapor-liquid mixer is enhanced. In this invert rectifier, cooling medium vapor is introduced to a lower portion of the container and a residual portion of the weak solution or all weak solution is introduced to an upper portion of the vapor-liquid mixer 16, so that the introduced cooling medium vapor and weak solution are subjected to vapor-liquid contact by the action of an opposed flow. Due to the foregoing, cooling medium vapor is generated, the temperature of which is high, and the amount of the vapor component of absorbent of which is large, so that the enthalpy of cooling medium vapor is enhanced.

Abstract: A point of sale-data processing apparatus has a handy type optical scanner for reading a bar code attached or marked on a product. The apparatus performs a predetermined process of sales with regard to the product in accordance with product information previously recorded and corresponding to the read bar code. A scanner holding recess for detachably holding the optical scanner is provided at the outer surface of a main body housing of the apparatus, on which various enter keys and a display panel are provided. The scanner held in the recess orients a bar code read window thereof toward the outside of the recess.