Abstract: A computer for a manufacturer includes: a storage device storing amount-of-change determination values specified for respective amount-of-change indexes indicative of tendencies of temporal changes in pieces of sensor data A, B, and C, about a plurality of oil properties including a viscosity, a density, and a dielectric constant of oil; an abnormality determining section determining abnormality of the oil on the basis of the pieces of sensor data A, B, and C about the plurality of oil properties and abnormality determination values SAh, SAl, SBh, and SCh prescribed for the respective pieces of sensor data A, B, and C about the plurality of oil properties; a cause identifying section identifying, when the abnormality determining section determines the oil to be abnormal, the cause of the abnormality on the basis of the type of the oil property determined to be abnormal and the amount-of-change determination value of the oil property.

Abstract: A left suspension unit supports a left wheel. A right suspension unit supports a right wheel. A steering actuator imparts a force causing the left suspension unit and the right suspension unit to turn about a left steering axis and a right steering axis respectively to a steering force transmission mechanism. A leaning actuator imparts a force causing a body frame to lean leftward or rightward of a leaning vehicle to a link mechanism. A control unit is capable of selecting a first mode wherein both of the steering actuator and the leaning actuator are employed, and a second mode wherein the steering actuator is employed without employing the leaning actuator, in order to control a leaning angle of the body frame in cooperation with a steering mechanism.

Abstract: An autonomous vehicle that moves automatically without any driver's manipulation. The autonomous vehicle includes a vehicle body including a deck, and an action-inducing device for inducing an action of a person who is a user of the autonomous vehicle or a non-user around the autonomous vehicle. The action-inducing device including an image-capturing device for capturing the person, and an information presentation device for presenting action-inducing information, to thereby induce the person to take the action.

Abstract: A computer for a manufacturer includes: a storage device storing amount-of-change determination values specified for respective amount-of-change indexes indicative of tendencies of temporal changes in pieces of sensor data A, B, and C, about a plurality of oil properties including a viscosity, a density, and a dielectric constant of oil; an abnormality determining section determining abnormality of the oil on the basis of the pieces of sensor data A, B, and C about the plurality of oil properties and abnormality determination values SAh, SAI, SBh, and SCh prescribed for the respective pieces of sensor data A, B, and C about the plurality of oil properties; a cause identifying section identifying, when the abnormality determining section determines the oil to be abnormal, the cause of the abnormality on the basis of the type of the oil property determined to be abnormal and the amount-of-change determination value of the oil property.

Abstract: A left suspension unit supports a left wheel. A right suspension unit supports a right wheel. A steering actuator imparts a force causing the left suspension unit and the right suspension unit to turn about a left steering axis and a right steering axis respectively to a steering force transmission mechanism. A leaning actuator imparts a force causing a body frame to lean leftward or rightward of a leaning vehicle to a link mechanism. A control unit is capable of selecting a first mode wherein both of the steering actuator and the leaning actuator are employed, and a second mode wherein the steering actuator is employed without employing the leaning actuator, in order to control a leaning angle of the body frame in cooperation with a steering mechanism.

Abstract: A snowmobile includes an engine including a crankshaft, a driving shaft rotatable together with the crankshaft, an endless track belt drivable by the driving shaft, and a vehicle body frame including a wall portion defining an engine room accommodating the engine and engine support portions and supporting the engine. At least a portion of the wall portion is made of a carbon fiber-reinforced plastic material and overlaps the engine as seen in a side view.

Abstract: A diagnostic system for a work machine includes a data storage device (210) in which sensor information (A) input from a sensor (101A) that senses an oil property of oil used for operation of the work machine and an abnormality degree determination value defined for each kind of the sensor information (A) are stored, and an arithmetic processing device (104) that executes first processing of discriminating the degree of abnormality level of the oil based on the sensor information (A) and the abnormality degree determination value, second processing of determining whether or not necessity to carry out oil analysis involving oil extraction exists based on the degree of abnormality level of the oil discriminated in the first processing, and third processing of outputting information indicating that the oil analysis is necessary to other terminal if it is determined that the oil analysis is necessary in the second processing.

Abstract: A diagnostic system for a work machine includes a data storage device (210) in which sensor information (A) input from a sensor (101A) that senses an oil property of oil used for operation of the work machine and an abnormality degree determination value defined for each kind of the sensor information (A) are stored, and an arithmetic processing device (104) that executes first processing of discriminating the degree of abnormality level of the oil based on the sensor information (A) and the abnormality degree determination value, second processing of determining whether or not necessity to carry out oil analysis involving oil extraction exists based on the degree of abnormality level of the oil discriminated in the first processing, and third processing of outputting information indicating that the oil analysis is necessary to other terminal if it is determined that the oil analysis is necessary in the second processing.

Abstract: A snowmobile includes a vehicle body frame including a left engine support portion that supports an engine. The left engine support portion includes a first layer made of a carbon fiber-reinforced plastic material, a second layer made of a carbon fiber-reinforced plastic material, and an intermediate layer located between the first layer and the second layer. The first layer, the intermediate layer and the second layer are provided with a through-hole into which a securing member that secures the engine and the vehicle body frame to each other is inserted.

Abstract: A snowmobile includes an engine including a crankshaft, a driving shaft rotatable together with the crankshaft, an endless track belt drivable by the driving shaft, and a vehicle body frame including a wall portion defining an engine room accommodating the engine and engine support portions and supporting the engine. At least a portion of the wall portion is made of a carbon fiber-reinforced plastic material and overlaps the engine as seen in a side view.

Abstract: A snowmobile includes a vehicle body frame including a tunnel portion extending in a vehicle front-rear direction. The tunnel portion includes a top wall made of a carbon fiber-reinforced plastic material, a left side wall made of a carbon fiber-reinforced plastic material, aright side wall made of a carbon fiber-reinforced plastic material, a left reinforcing member reinforcing the left side wall and made of a carbon fiber-reinforced plastic material, and a right reinforcing member reinforcing the right side wall and made of a carbon fiber-reinforced plastic material. A first closed cross-section is defined by the top wall, the left side wall and the left reinforcing member, and a second closed cross-section is defined by the top wall, the right side wall and the right reinforcing member.

Abstract: A snowmobile includes a vehicle body frame including a left engine support portion that supports an engine. The left engine support portion includes a first layer made of a carbon fiber-reinforced plastic material, a second layer made of a carbon fiber-reinforced plastic material, and an intermediate layer located between the first layer and the second layer. The first layer, the intermediate layer and the second layer are provided with a through-hole into which a securing member that secures the engine and the vehicle body frame to each other is inserted.

Abstract: A snowmobile includes a vehicle body frame including a tunnel portion extending in a vehicle front-rear direction. The tunnel portion includes a top wall made of a carbon fiber-reinforced plastic material, a left side wall made of a carbon fiber-reinforced plastic material, a right side wall made of a carbon fiber-reinforced plastic material, a left reinforcing member reinforcing the left side wall and made of a carbon fiber-reinforced plastic material, and a right reinforcing member reinforcing the right side wall and made of a carbon fiber-reinforced plastic material. A first closed cross-section is defined by the top wall, the left side wall and the left reinforcing member, and a second closed cross-section is defined by the top wall, the right side wall and the right reinforcing member.

Abstract: A saddle riding vehicle that allows the amount of roll to be reduced includes a vehicle body, a handle, and a suspension mechanism. The suspension mechanism is provided at a front portion of the vehicle body and supports a pair of left and right front wheels or a pair of left and right skis. The suspension mechanism includes a pair of left and right arm members and a pair of left and right air shock absorbers. The pair of left and right arm members supports the pair of front wheels or the pair of skis in a vertically movable manner. The pair of left and right air shock absorbers is coupled to the pair of arm members. The pair of left and right air shock absorbers each includes a cylinder, a piston, a piston rod, a first gas chamber, and a second gas chamber.

Abstract: A snowmobile includes a vehicle body, a track belt, an engine, a left-and-right pair of skis, a suspension mechanism, and a steering mechanism. The track belt is located on a lower portion of the vehicle body. The engine drives the track belt. The suspension mechanism is a mechanism arranged to support the pair of skis so as to move in a vertical direction with respect to the vehicle body, and to support the pair of skis in an associated manner so that one of the skis moves downwards relative to the vehicle body when the other ski moves upwards relative to the vehicle body. The steering mechanism is a mechanism arranged to steer the pair of skis.

Abstract: A saddle riding type vehicle that allows the amount of roll to be reduced is provided. The saddle riding type vehicle includes a vehicle body, a handle, and a suspension mechanism. The suspension mechanism is provided at a front portion of the vehicle body and supports a pair of left and right front wheels or a pair of left and right skis. The suspension mechanism includes a pair of left and right arm members and a pair of left and right air shock absorbers. The pair of left and right arm members supports the pair of front wheels or the pair of skis in a vertically movable manner. The pair of left and right air shock absorbers is coupled to the pair of arm members. The pair of left and right air shock absorbers each includes a cylinder, a piston, a piston rod, a first gas chamber, and a second gas chamber. The cylinder stores gas. The piston is stored in the cylinder and has a front surface and a back surface. The piston rod is coupled to the back surface of the piston.

Abstract: A snowmobile includes a vehicle body, a track belt, an engine, a left-and-right pair of skis, a suspension mechanism, and a steering mechanism. The track belt is located on a lower portion of the vehicle body. The engine drives the track belt. The suspension mechanism is a mechanism arranged to support the pair of skis so as to move in a vertical direction with respect to the vehicle body, and to support the pair of skis in an associated manner so that one of the skis moves downwards relative to the vehicle body when the other ski moves upwards relative to the vehicle body. The steering mechanism is a mechanism arranged to steer the pair of skis.

Abstract: Semiconductor light-emitting elements are produced by providing a wafer substrate of GaP, epitaxially growing on this substrate a semiconductor layered structure including an n-type layer and a p-type layer of GaP for providing a light-emitting layer, forming top electrodes on the semiconductor layered structure each over a portion of the area corresponding to one of the chips into which the substrate is to be later divided, forming a bottom electrode on the bottom surface of the substrate, dicing the wafer substrate into the individual chips, and thereafter carrying out a surface-roughening process on externally exposed portions of the semiconductor structure by means of hydrochloric acid. Each of the top electrodes is of a three-layer structure with a contact metal layer which may be of an alloy of Au and makes an ohmic contact with the GaP of the semiconductor layered structure, a Mo layer on the contact metal layer and an Au layer on the Mo layer.

Abstract: Semiconductor light-emitting elements are produced by providing a wafer substrate of GaP, epitaxially growing on this substrate a semiconductor layered structure including an n-type layer and a p-type layer of GaP for providing a light-emitting layer, forming top electrodes on the semiconductor layered structure each over a portion of the area corresponding to one of the chips into which the substrate is to be later divided, forming a bottom electrode on the bottom surface of the substrate, dicing the wafer substrate into the individual chips, and thereafter carrying out a surface-roughening process on externally exposed portions of the semiconductor structure by means of hydrochloric acid. Each of the top electrodes is of a three-layer structure with a contact metal layer which may be of an alloy of Au and makes an ohmic contact with the GaP of the semiconductor layered structure, a Mo layer on the contact metal layer and an Au layer on the Mo layer.

Abstract: The multilayer ceramic chip capacitor includes a multilayer ceramic capacitor chip having internal electrodes and an external electrode that is formed of a sintered layer of a paste containing both an electroconductive metal powder and a glass frit on both end faces of the multilayer ceramic capacitor chip and having an electric connection to the internal electrodes. A coating of plated metal is deposited on the surface of the external electrode. The multilayer ceramic capacitor chip is chamfered to a radius of curvature (R) of 0.10 mm or more on the periphery of each of the end faces at which the internal electrodes are to be connected to the external electrode and/or the external electrode has a dual structure consisting of an undercoat in contact with the internal electrodes and a topcoat in superposition on the surface of the undercoat.