Abstract: A steel pipe for a fuel injection pipe has a chemical composition consisting of, by mass %: C: 0.17 to 0.27%, Si: 0.05 to 0.40%, Mn: 0.30 to 2.00%, P: 0.020% or less, S: 0.0100% or less, O: 0.0040% or less, Ca: 0.0010% or less, Al: 0.005 to 0.060%, N: 0.0020 to 0.0080%, Ti: 0.005 to 0.015%, Nb: 0.015 to 0.045%, Cr: 0 to 1.00%, Mo: 0 to 1.00%, Cu: 0 to 0.50%, Ni: 0 to 0.50%, V: 0 to 0.15%, and the balance: Fe and impurities. The metal micro-structure consists substantially of tempered martensite, or tempered martensite and tempered bainite. The hardness is within the range of 350 to 460 HV1. A lattice spacing of a (211) diffraction plane measured by CoK? characteristic X-ray diffraction is 1.1716 ? or less, and a half-value width of the (211) diffraction plane is 1.200° or less. The number density of cementite having a diameter of 50 nm or more is 20/?m2 or less.

Abstract: A steel pipe for a fuel injection pipe has a chemical composition consisting of, by mass %: C: 0.17 to 0.27%, Si: 0.05 to 0.40%, Mn: 0.30 to 2.00%, P: 0.020% or less, S: 0.0100% or less, O: 0.0040% or less, Ca: 0.0010% or less, Al: 0.005 to 0.060%, N: 0.0020 to 0.0080%, Ti: 0.005 to 0.015%, Nb: 0.015 to 0.045%, Cr: 0 to 1.00%, Mo: 0 to 1.00%, Cu: 0 to 0.50%, Ni: 0 to 0.50%, V: 0 to 0.15%, and the balance: Fe and impurities. The metal micro-structure consists substantially of tempered martensite, or tempered martensite and tempered bainite. A prior-austenite grain size number is 9.0 or more. The hardness is within the range of 350 to 460 HV1. When a maximum value of a square root of an area of inclusions observed in a cross section perpendicular to a longitudinal direction of the steel pipe is taken as an (n=1 to 20), a maximum value amax of an is 30.0 ?m or less, and an average value aav of an is 40% or more of amax.

Abstract: A traveling vehicle provided with a starting device for starting a power generation part, the traveling vehicle being capable of restart the power generation part quickly. In a traveling vehicle including a power generation part mounted on a vehicle body, a starting device for starting the power generation part, and an operation part of the starting device, the operation part includes a handlebar side operation switch provided on a handlebar to permit a rider to steer the vehicle, and an auxiliary start switch provided on the vehicle body side, and the auxiliary start switch is disposed at an inner position of the vehicle body.

Abstract: An optical laminate includes a translucent substrate, and at least one optical functional layer provided on the translucent substrate. The optical functional layer has a concave-convex shape on at least one surface. The optical functional layer contains two types of inorganic fine particles, and resin particles. The optical laminate has an internal haze X and a total haze Y satisfying (1) Y>X, (2) Y?X+25, (3) Y?50, and (4) 7?X?25. The optical laminate has a transmitted image clarity of 15% to 55% as measured using a 0.5-mm width optical comb. The number of projections having a height of not smaller than 0.1 ?m is not less than 900 per mm2 of measurement area in the concave-convex shape as measured by optical interferometry at an outermost surface of the optical functional layer.

Abstract: An optical laminate includes a translucent substrate, and at least one optical functional layer provided on of the translucent substrate. The optical functional layer has a concave-convex shape on at least one surface. The optical functional layer contains two types of inorganic fine particles, and resin particles. The optical laminate has an internal haze X and a total haze Y satisfying (1) Y>X, (2) Y?X+17, (3) Y?57, and (4) 19?X?40. The optical laminate has a transmitted image clarity of 30% to 70% as measured using a 0.5-mm width optical comb. The number of projections having a height of not smaller than 0.1 ?m is not less than 600 per mm2 of measurement area in the concave-convex shape as measured by optical interferometry at an outermost surface of the optical functional layer.

Abstract: A traveling vehicle provided with a starting device for starting a power generation part, the traveling vehicle being capable of restart the power generation part quickly. In a traveling vehicle including a power generation part mounted on a vehicle body, a starting device for starting the power generation part, and an operation part of the starting device, the operation part includes a handlebar side operation switch provided on a handlebar to permit a rider to steer the vehicle, and an auxiliary start switch provided on the vehicle body side, and the auxiliary start switch is disposed at an inner position of the vehicle body.

Abstract: An optical laminate includes a translucent substrate, and at least one optical functional layer provided on the translucent substrate. The optical functional layer has a concave-convex shape on at least one surface. The optical functional layer contains two types of inorganic fine particles, and resin particles. The optical laminate has an internal haze X and a total haze Y satisfying (1) Y>X, (2) Y?X+25, (3) Y?50, and (4) 7?X?25. The optical laminate has a transmitted image clarity of 15% to 55% as measured using a 0.5-mm width optical comb. The number of projections having a height of not smaller than 0.1 ?m is not less than 900 per mm2 of measurement area in the concave-convex shape as measured by optical interferometry at an outermost surface of the optical functional layer.

Abstract: An optical laminate includes a translucent substrate, and at least one optical functional layer provided on of the translucent substrate. The optical functional layer has a concave-convex shape on at least one surface. The optical functional layer contains two types of inorganic fine particles, and resin particles. The optical laminate has an internal haze X and a total haze Y satisfying (1) Y>X, (2) Y?X+17, (3) Y?57, and (4) 19?X?40. The optical laminate has a transmitted image clarity of 30% to 70% as measured using a 0.5-mm width optical comb. The number of projections having a height of not smaller than 0.1 ?m is not less than 600 per mm2 of measurement area in the concave-convex shape as measured by optical interferometry at an outeimost surface of the optical functional layer.

Abstract: An air intake system for a saddle-ride vehicle for facilitating the intake of fresh air and for enabling a discharge of excess pressure in an air cleaner box. The system includes an air cleaner box with an air cleaner element housed in an air cleaner case and an intake duct connected to the air cleaner box with an intake port open toward a vehicle front side, in which the intake duct has a duct opening oriented outward of the duct between the intake port and the air cleaner box. The air cleaner box includes parts for connecting the intake duct, a connecting tube and also case openings oriented outward of the case.

Abstract: An air intake system for a saddle-ride vehicle for facilitating the intake of fresh air and for enabling a discharge of excess pressure in an air cleaner box. The system includes an air cleaner box with an air cleaner element housed in an air cleaner case and an intake duct connected to the air cleaner box with an intake port open toward a vehicle front side, in which the intake duct has a duct opening oriented outward of the duct between the intake port and the air cleaner box. The air cleaner box includes parts for connecting the intake duct, a connecting tube and also case openings oriented outward of the case.