Abstract: One embodiment of the present invention is composite particles containing silicon and carbon, which are characterized as follows. When the cross-sectional diameter and the silicon content rate of the composite particles are measured by cross-sectional SEM-EDS and composite particles having a cross-sectional diameter of half or less than the number average of the cross-sectional diameter are defined as small diameter composite particles, the proportion of the number of the small diameter composite particles in the number of the composite particles measured is 5% or more and 50% or less, the ratio of the average silicon content rate (% by mass) of particles other than the small diameter composite particles to the average silicon content rate (% by mass) of the small diameter composite particles is 0.90 or less, and the silicon content rate of the entire composite particles is 45% by mass or more.

Abstract: Provided is a seat having an improved appearance by hiding a section where a trim cover is attached to a backboard from an outside. A seat includes: a seat pad; a backboard disposed on a back surface of the seat pad; a trim cover covering a front surface of the seat pad; a terminal member attached to the trim cover along an end thereof, and a connection member attached to an end of the backboard for connecting the terminal member thereto. The terminal member is connected to the connection member in a state where the terminal member and the connection member are covered with the trim cover from an outside, so that the end of the trim cover is fastened to the end of the backboard.

Abstract: A gas generator includes a housing main body made of metal, a holder assembly, and an igniter. The holder assembly includes a holder portion made of metal and a connector portion made of resin. The holder portion includes a first barrel portion and an annular projection. The connector portion includes a second barrel portion and a cylindrical portion. The cylindrical portion is inserted in the housing main body and externally attached to the first barrel portion. As a portion of the housing main body corresponding to the cylindrical portion is decreased in diameter, the cylindrical portion is compressed by being sandwiched between the portion of the housing main body decreased in diameter and the first barrel portion so as to seal a gap between the housing main body and the first barrel portion.

Abstract: A gas generator includes an igniter assembled to one end portion of a housing, a gastight container arranged in the inside of the housing, and a coil spring interposed between the one end portion of the housing and the gastight container. The gastight container melts or bursts as a result of activation of the igniter. A gas generating agent is accommodated in the gastight container. The coil spring serves to fix the gastight container in the inside of the housing. The coil spring is arranged substantially coaxially with an ignition portion to surround the ignition portion without interposition of another member between the coil spring and the ignition portion, so as to restrict a degree of opening of a cup body included in the ignition portion of the igniter at the time of cleavage of the cup body.

Abstract: A method disclosed herewith is a method for producing a first seamless metal tube with a first wall thickness and a second seamless metal tube with a second wall thickness by using a three-roll-type inclined rolling mill, and the method includes a first inclination rolling step (#5), a setting changing step (#10), and a second inclination rolling step (#15). At the first inclination rolling step, a first workpiece is rolled by the inclined rolling mill. At the setting changing step, a setup condition of the inclined rolling mill is changed in a manner (a) or (b) as described below. At the second inclined rolling step, a second workpiece is rolled by the inclined rolling mill under the changed condition. (a) When the second wall thickness is smaller than the first wall thickness, the cross angle of each of the inclined rolls is made greater than the cross angle set for the first inclination rolling step.

Abstract: A travel assistance device for assisting traveling of a subsequent vehicle following a vehicle group in the form of vehicle platooning, the travel assistance device being located in a last vehicle of a plurality of vehicles included in the vehicle group, the travel assistance device including: an information acquiring unit for acquiring information indicating right/left turning vehicles that turn right or left at an intersection among the vehicles and information indicating deceleration timing of a first vehicle from front among the right/left turning vehicles; and a direction indicator controlling unit for turning on a direction indicator of the last vehicle at the deceleration timing of the foremost right/left turning vehicle.

Abstract: A method for producing a seamless metal pipe includes the steps of: preparing a billet having a diameter (B); heating the billet; forming, in a center part of a rear end of the heated billet, a hole including four grooves extending in an axial direction of the billet, the grooves each having a groove width (D) satisfying Formula (1), a groove height (H) satisfying Formula (2), and a groove depth (L1) satisfying Formula (3); and subjecting the billet provided with the hole to piercing-rolling from a front end thereof by means of a piercing machine. By this means, the generation of burrs and internal defects at the rear end of a hollow shell after piercing-rolling can be suppressed. 0.12?D/B?0.25??(1) 0.10?H/B?0.20??(2) 0.05?L1/B?0.

Abstract: Efficiency of producing polycrystalline silicon is improved. A silicon filament (11) is constituted by a rod-shaped member made of polycrystalline silicon. The polycrystalline silicon has an interstitial oxygen concentration of not less than 10 ppma and not more than 40 ppma. On a side surface, in a lengthwise direction, of the rod-shaped member, crystal grains each having a crystal grain size of not less than 1 mm are observed.

Abstract: A control unit (3) determines whether a host vehicle has deviated from the lane of a scheduled travel route using information acquired by an information acquiring unit (2). A notification unit (4) notifies a driver of the host vehicle of the lane deviation of the host vehicle. A wireless communication unit (5) transmits lane deviation information indicating the lane deviation of the host vehicle to another vehicle.

Abstract: A vehicle power transmission device includes: a differential mechanism and provided with a through-hole in an outer circumferential surface, a pair of pinion gears respectively fitted to both ends of a pinion shaft, and a pair of side gears rotatably supported by the differential case and meshed with the pinion gears; and a baffle plate that includes an oil passage component functioning as an oil passage for supplying a lubricating oil for lubricating the pinion gears and the side gears and that is fixedly disposed to cover an outer circumference of the differential case. The oil passage component is provided with an opening portion allowing the lubricating oil in the oil passage to flow out downward, and the opening portion is disposed above the pinion shaft and between a pair of inner-circumferential-side end surfaces of the pair of the pinion gears when the pinion shaft is horizontal.

Abstract: A die casting apparatus according to an aspect of the present disclosure includes a sleeve 30 to which molten metal is supplied, and dies 10 and 20 configured to form a cavity C, in which the molten metal supplied to the sleeve 30 is injected into the cavity C through a runner R linking the sleeve 30 with the cavity C. A plurality of protrusions 22 are provided in the runner R, the plurality of protrusions 22 extending in a direction in which the molten metal flows and being arranged in a comb-teeth arrangement in a width direction of the runner R.

Abstract: A method for producing a seamless metal pipe includes the steps of: preparing a billet having a diameter (B); heating the billet; forming, in a center part of a rear end of the heated billet, a hole including four grooves extending in an axial direction of the billet, the grooves each having a groove width (D) satisfying Formula (1), a groove height (H) satisfying Formula (2), and a groove depth (L1) satisfying Formula (3); and subjecting the billet provided with the hole to piercing-rolling from a front end thereof by means of a piercing machine. By this means, the generation of burrs and internal defects at the rear end of a hollow shell after piercing-rolling can be suppressed. 0.12?D/B?0.25 ??(1) 0.10?H/B?0.20 ??(2) 0.05?L1/B?0.

Abstract: A travel assistance device is a travel assistance device for assisting traveling of a subsequent vehicle following a vehicle group in the form of vehicle platooning in a last vehicle of a plurality of vehicles included in the vehicle group, including: an information acquiring unit for acquiring information indicating right/left turning vehicles that turn right or left at an intersection among the vehicles and information indicating deceleration timing of a first vehicle from front among the right/left turning vehicles; and a direction indicator controlling unit for turning on a direction indicator of the last vehicle at the deceleration timing of the foremost right/left turning vehicle.

Abstract: A control unit (3) determines whether a host vehicle has deviated from the lane of a scheduled travel route using information acquired by an information acquiring unit (2). A notification unit (4) notifies a driver of the host vehicle of the lane deviation of the host vehicle. A wireless communication unit (5) transmits lane deviation information indicating the lane deviation of the host vehicle to another vehicle.

Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.

Abstract: Efficiency of producing polycrystalline silicon is improved. A silicon filament (11) is constituted by a rod-shaped member made of polycrystalline silicon. The polycrystalline silicon has an interstitial oxygen concentration of not less than 10 ppma and not more than 40 ppma. On a side surface, in a lengthwise direction, of the rod-shaped member, crystal grains each having a crystal grain size of not less than 1 mm are observed.

Abstract: A die casting apparatus according to an aspect of the present disclosure includes a sleeve 30 to which molten metal is supplied, and dies 10 and 20 configured to form a cavity C, in which the molten metal supplied to the sleeve 30 is injected into the cavity C through a runner R linking the sleeve 30 with the cavity C. A plurality of protrusions 22 are provided in the runner R, the plurality of protrusions 22 extending in a direction in which the molten metal flows and being arranged in a comb-teeth arrangement in a width direction of the runner R.

Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.

Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.

Abstract: A vehicle power transmission device includes: a differential mechanism and provided with a through-hole in an outer circumferential surface, a pair of pinion gears respectively fitted to both ends of a pinion shaft, and a pair of side gears rotatably supported by the differential case and meshed with the pinion gears; and a baffle plate that includes an oil passage component functioning as an oil passage for supplying a lubricating oil for lubricating the pinion gears and the side gears and that is fixedly disposed to cover an outer circumference of the differential case. The oil passage component is provided with an opening portion allowing the lubricating oil in the oil passage to flow out downward, and the opening portion is disposed above the pinion shaft and between a pair of inner-circumferential-side end surfaces of the pair of the pinion gears when the pinion shaft is horizontal.