Abstract: The disclosure is inputting a first image obtained by capturing an object of authentication moving in a specific direction; inputting a second image at least for one eye obtained by capturing a right eye or a left eye of the object; determining whether the second image is of the left eye or the right eye of the object, based on information including the first image, and outputting a determination result associated with the second image as left/right information; comparing characteristic information relevant to the left/right information, the characteristic information being acquired from a memory that stores the characteristic information of a right eye and a left eye pertaining to object to be authenticated, with characteristic information associated with the left/right information, and calculating a verification score; and authenticating the object captured in the first image and the second image, based on the verification score, and outputting an authentication result.

Abstract: A first-aid information provision system of the example embodiments includes: an information display device that includes first capture means for capturing an iris image, code acquisition means for acquiring a code associated with the captured iris image, and code display means for displaying the acquired code; and an information output device that includes second capture means for imaging the code displayed by the information display device, first-aid information acquisition means for acquiring first-aid information about an individual associated with the iris image by using the imaged code, and first-aid information output means for outputting the first-aid information.

Abstract: A fuel supply device can have a low pressure fuel pump that supplies fuel to a vapor separator tank positioned adjacent to an engine from a main fuel tank disposed in a hull. An electrically operated primary fuel pump (e.g., a primer pump) and a check valve can both be positioned parallel to each other and between the main fuel tank and the low pressure fuel pump. A control device can be connected to the primary fuel pump for operating the primary fuel pump only for a preset fuel supply time when starting the engine is attempted and prior to the start of the engine.

Abstract: A fuel supply device can have a low pressure fuel pump that supplies fuel to a vapor separator tank positioned adjacent to an engine from a main fuel tank disposed in a hull. An electrically operated primary fuel pump (e.g., a primer pump) and a check valve can both be positioned parallel to each other and between the main fuel tank and the low pressure fuel pump. A control device can be connected to the primary fuel pump for operating the primary fuel pump only for a preset fuel supply time when starting the engine is attempted and prior to the start of the engine.

Abstract: An outboard motor includes an engine and a housing unit mounted on an associated watercraft. An intermediate unit is coupled with the housing unit to support the engine above the housing unit. An exhaust conduit discharging exhaust gases from the engine depends from the intermediate unit to extend generally vertically within the housing unit. The intermediate unit defines a coolant passage having a discharge port spaced apart from an outer surface of the exhaust conduit. A guide member is arranged to guide the coolant discharged from the discharge port toward the outer surface of the exhaust conduit.

Abstract: An exhaust system for an outboard motor includes an internal combustion engine. An intermediate member supports the engine. A housing unit depends from the intermediate member. An exhaust system guides exhaust gases from the engine. The exhaust system includes a main exhaust passage and an idle exhaust passage. The main exhaust passage discharges the exhaust gases that are produced above idle to the body of water through the housing unit. The idle exhaust passage discharges the exhaust gases that are produced during idle to the atmosphere. The intermediate member defines a portion of the main exhaust passage and a portion of the idle exhaust passage. The intermediate member forms a recessed area in the main exhaust passage portion. The idle exhaust passage communicates with the main exhaust passage portion at the recessed area.

Abstract: A shaft coupling for an outboard motor includes an improved construction that can be held under a good lubricative condition. The outboard motor includes an engine. An engine body defines a first aperture through which a crankshaft extends and is journaled. A recessed portion of the crankshaft defines inner spline grooves. A support member that supports the engine body has a second aperture. A driveshaft extends through the second aperture toward the recessed portion. The driveshaft has a tip portion defining outer spline grooves that are coupled with the inner spline grooves. A first seal member is disposed between an outer surface of the output shaft and an inner surface of the first aperture. A second seal member is disposed between an outer surface of the driveshaft and an inner surface the second aperture. The engine body, the support member, the output shaft, the driveshaft and the first and second seal members together define a lubricant chamber to enclose lubricant.

Abstract: An outboard motor includes a housing unit and an engine. The engine defines a first exhaust passage and a first lubricant passage. The first exhaust passage generally extends on a first side of the outboard motor. The first lubricant passage generally extends on a second side of the outboard motor opposite to the first side. An exhaust guide member is coupled with the housing unit to support the engine above the housing unit. An exhaust conduit depends from the exhaust guide member within the housing unit. The exhaust guide member defines a second exhaust passage connecting the exhaust conduit with the first exhaust passage. The second exhaust passage generally extends on the first side. A lubricant reservoir depends from the exhaust guide member within the housing unit. The exhaust guide member defines a second lubricant passage connecting the lubricant reservoir with the first lubricant passage. The second lubricant passage generally extends on the second side.

Abstract: A cooling system for an outboard motor includes an improved construction that can inhibit a housing unit of the outboard motor from absorbing heat that causes discoloring of the unit. The outboard motor includes a power head that has an engine. The housing unit depends from the power head. An exhaust conduit is arranged to discharge exhaust gases from the engine. At least a portion of the exhaust conduit extends through the housing unit. A cooling system is arranged to cool at least the portion of the exhaust conduit by coolant. The cooling system includes an inner coolant pool surrounding the portion of the exhaust conduit and an outer coolant pool surrounding the inner coolant pool. The cooling system supplies the coolant to the inner and outer pools. The coolant supplied to the outer pool is cooler than the coolant supplied to the inner pool.

Abstract: A starting fuel supplying apparatus improves restarting performance of an engine in a warm-up state. In the engine in which a carburetor is disposed on the side of the cylinder, the starting fuel supplying apparatus and a thermo-sensitive member attached to the carburetor are disposed on the side of the carburetor close to the engine.

Abstract: An outboard motor includes a housing unit and an engine. The engine defines a first exhaust passage and a first lubricant passage. The first exhaust passage generally extends on a first side of the outboard motor. The first lubricant passage generally extends on a second side of the outboard motor opposite to the first side. An exhaust guide member is coupled with the housing unit to support the engine above the housing unit. An exhaust conduit depends from the exhaust guide member within the housing unit. The exhaust guide member defines a second exhaust passage connecting the exhaust conduit with the first exhaust passage. The second exhaust passage generally extends on the first side. A lubricant reservoir depends from the exhaust guide member within the housing unit. The exhaust guide member defines a second lubricant passage connecting the lubricant reservoir with the first lubricant passage. The second lubricant passage generally extends on the second side.

Abstract: An outboard motor includes an engine and a housing unit mounted on an associated watercraft. An intermediate unit is coupled with the housing unit to support the engine above the housing unit. An exhaust conduit discharging exhaust gases from the engine depends from the intermediate unit to extend generally vertically within the housing unit. The intermediate unit defines a coolant passage having a discharge port spaced apart from an outer surface of the exhaust conduit. A guide member is arranged to guide the coolant discharged from the discharge port toward the outer surface of the exhaust conduit.

Abstract: An outboard motor has an exhaust pipe assembly extending through a driveshaft housing. The exhaust pipe is separated into an upstream exhaust pipe and a downstream exhaust pipe which are formed separately from each other. The upstream exhaust pipe depends into the driveshaft housing and has a lower end connected to a pipe support member. An upper end of the downstream exhaust pipe connects to the pipe support member in a manner to communicate with the upstream exhaust pipe. The downstream pipe depends through an opening in a bottom wall of the driveshaft housing, and a mount at the lower end of the pipe is connected to the driveshaft housing in order to secure the pipe in place. The upper end of the downstream exhaust pipe is fit into the pipe support member without the use of fasteners. In this configuration, the downstream exhaust pipe can be removed independently of the upstream exhaust pipe, and can be drawn downwardly through the opening during removal.

Abstract: A valve cam mechanism for a four-cycle engine includes an improved construction. The engine includes at least one camshaft having cam lobes to actuate intake and exhaust valves. A decompression actuator is affixed to the camshaft for pivotal movement. A holder section of the actuator is arranged to hold the intake or exhaust valve in an open position when the actuator exists in an initial position. A weight section is disposed opposite to the holder section relative to the pivot axis to place the holder section in the initial position. The actuator pivots when the weight section moves by centrifugal force to release the holder section from the initial position. The camshaft further has a projection extending radially and defining a first surface on which the stopper section abuts to inhibit the actuator from pivoting beyond a preset range. The cam lobe includes a base circle portion and a nose portion protruding from the base circle of the cam lobe.

Abstract: A cooling system for an outboard motor includes an improved construction that can inhibit a housing unit of the outboard motor from absorbing heat that causes discoloring of the unit. The outboard motor includes a power head that has an engine. The housing unit depends from the power head. An exhaust conduit is arranged to discharge exhaust gases from the engine. At least a portion of the exhaust conduit extends through the housing unit. A cooling system is arranged to cool at least the portion of the exhaust conduit by coolant. The cooling system includes an inner coolant pool surrounding the portion of the exhaust conduit and an outer coolant pool surrounding the inner coolant pool. The cooling system supplies the coolant to the inner and outer pools. The coolant supplied to the outer pool is cooler than the coolant supplied to the inner pool.

Abstract: A shaft coupling for an outboard motor includes an improved construction that can be held under a good lubricative condition. The outboard motor includes an engine. An engine body defines a first aperture through which a crankshaft extends and is journaled. A recessed portion of the crankshaft defines inner spline grooves. A support member that supports the engine body has a second aperture. A driveshaft extends through the second aperture toward the recessed portion. The driveshaft has a tip portion defining outer spline grooves that are coupled with the inner spline grooves. A first seal member is disposed between an outer surface of the output shaft and an inner surface of the first aperture. A second seal member is disposed between an outer surface of the driveshaft and an inner surface the second aperture. The engine body, the support member, the output shaft, the driveshaft and the first and second seal members together define a lubricant chamber to enclose lubricant.

Abstract: An exhaust system for an outboard motor includes an internal combustion engine. An intermediate member supports the engine. A housing unit depends from the intermediate member. An exhaust system guides exhaust gases from the engine. The exhaust system includes a main exhaust passage and an idle exhaust passage. The main exhaust passage discharges the exhaust gases that are produced above idle to the body of water through the housing unit. The idle exhaust passage discharges the exhaust gases that are produced during idle to the atmosphere. The intermediate member defines a portion of the main exhaust passage and a portion of the idle exhaust passage. The intermediate member forms a recessed area in the main exhaust passage portion. The idle exhaust passage communicates with the main exhaust passage portion at the recessed area.

Abstract: A starting fuel supplying apparatus improves restarting performance of an engine in a warm-up state. In the engine in which a carburetor is disposed on the side of the cylinder, the starting fuel supplying apparatus and a thermo-sensitive member attached to the carburetor are disposed on the side of the carburetor close to the engine.

Abstract: A valve cam mechanism for a four-cycle engine includes an improved construction. The engine includes at least one camshaft having cam lobes to actuate intake and exhaust valves. A decompression actuator is affixed to the camshaft for pivotal movement. A holder section of the actuator is arranged to hold the intake or exhaust valve in an open position when the actuator exists in an initial position. A weight section is disposed opposite to the holder section relative to the pivot axis to place the holder section in the initial position. The actuator pivots when the weight section moves by centrifugal force to release the holder section from the initial position. The camshaft further has a projection extending radially and defining a first surface on which the stopper section abuts to inhibit the actuator from pivoting beyond a preset range. The cam lobe includes a base circle portion and a nose portion protruding from the base circle of the cam lobe.

Abstract: An outboard motor has an exhaust pipe assembly extending through a driveshaft housing. The exhaust pipe is separated into an upstream exhaust pipe and a downstream exhaust pipe which are formed separately from each other. The upstream exhaust pipe depends into the driveshaft housing and has a lower end connected to a pipe support member. An upper end of the downstream exhaust pipe connects to the pipe support member in a manner to communicate with the upstream exhaust pipe. The downstream pipe depends through an opening in a bottom wall of the driveshaft housing, and a mount at the lower end of the pipe is connected to the driveshaft housing in order to secure the pipe in place. The upper end of the downstream exhaust pipe is fit into the pipe support member without the use of fasteners. In this configuration, the downstream exhaust pipe can be removed independently of the upstream exhaust pipe, and can be drawn downwardly through the opening during removal.