Abstract: A vehicle sound output device includes a sound generation unit configured to generate a sound having a predetermined frequency, a double wall disposed on a vehicle outer side with respect to the sound generation unit, and including an inner wall portion and an outer wall portion which are separated from each other in a vehicle inner-outer direction, and an intermediate layer which is formed in a closed space between the inner wall portion and the outer wall portion and through which the sound is transmitted.

Abstract: A method of producing a sealing member for a fuel cell includes: setting a base material made of a modified polypropylene in a mold; bringing a hydrosilicone crosslinked ethylene/?-olefin/non-conjugated diene copolymer into contact with the base material and performing molding in the mold; and vulcanizing the hydrosilicone crosslinked ethylene/?-olefin/non-conjugated diene copolymer and at the same time, bonding the hydrosilicone crosslinked ethylene/?-olefin/non-conjugated diene copolymer and the base material by vulcanization, in the mold with a molding temperature set to a temperature that is higher than a vulcanization start temperature of the hydrosilicone crosslinked ethylene/?-olefin/non-conjugated diene copolymer and lower than a melting point of the modified polypropylene.

Abstract: A vehicle sensor unit includes an infrared sensor configured to transmit an infrared ray to an outside of the vehicle, and receive an infrared ray reflected by a detection target object outside the vehicle, and a cover which is located in front of the infrared sensor in a transmission direction of the infrared ray to cover the infrared sensor and through which the infrared ray passes. A plurality of fine projection portions are formed on a surface of the cover on an opposite side of a surface on an infrared sensor side, at least in a region through which the infrared ray passes, and an interval between the projection portions that are adjacent to each other is equal to or smaller than a wavelength of the infrared ray.

Abstract: A weather strip includes an ethylene-?-olefin-nonconjugated diene copolymer rubber composition having a volume resistivity of no less than 1.0E+6 ?·cm and having a specific gravity of less than 1.30, the rubber composition including: carbon black in an amount of 40 parts by mass to 140 parts by mass; and at least one polymer having a specific gravity of no more than 1.8 and an ethylene content of no more than 70 wt % and at least one polymer having a specific gravity of no more than 1.8 and an ethylene content of no less than 70 wt % in a collective amount of 5 parts by mass to 50 parts by mass, per 100 parts by mass of an EPDM polymer. At least a mount base of the weather strip, which is to be mounted to a car body, is formed of the rubber composition.

Abstract: A target recognition method includes setting different identifiers for different types of targets according to the types, setting, for each of the targets, a corresponding one of the identifiers such that the identifier is detectable using infrared light, providing an infrared-penetrable concealing layer so as to conceal the identifier from above the identifier, emitting the infrared light to the identifier arranged on the target, and recognizing the target based on the identifier that has been detected through the emitting.

Abstract: A method of producing a sealing member for a fuel cell includes: setting a base material made of a modified polypropylene in a mold; bringing a hydrosilicone crosslinked ethylene/?-olefin/non-conjugated diene copolymer into contact with the base material and performing molding in the mold; and vulcanizing the hydrosilicone crosslinked ethylene/?-olefin/non-conjugated diene copolymer and at the same time, bonding the hydrosilicone crosslinked ethylene/?-olefin/non-conjugated diene copolymer and the base material by vulcanization, in the mold with a molding temperature set to a temperature that is higher than a vulcanization start temperature of the hydrosilicone crosslinked ethylene/?-olefin/non-conjugated diene copolymer and lower than a melting point of the modified polypropylene.

Abstract: A weather strip includes an ethylene-?-olefin-nonconjugated diene copolymer rubber composition having a volume resistivity of no less than 1.0E+6 ?·cm and having a specific gravity of less than 1.30, the rubber composition including: carbon black in an amount of 40 parts by mass to 140 parts by mass; and at least one polymer having a specific gravity of no more than 1.8 and an ethylene content of no more than 70 wt % and at least one polymer having a specific gravity of no more than 1.8 and an ethylene content of no less than 70 wt % in a collective amount of 5 parts by mass to 50 parts by mass, per 100 parts by mass of an EPDM polymer. At least a mount base of the weather strip, which is to be mounted to a car body, is formed of the rubber composition.

Abstract: A heat-expandable rubber layer is provided to an inner all of a pneumatic tire when the tire is in an uncured state. The rubber layer is expanded when the tire is in a vulcanized state. Once expanded, the rubber layer is capable of reducing rolling noises of the tire. The rubber layer includes an elastomer composition based on at least an elastomer, e.g., natural rubber or butyl rubber; a reinforcing filler, e.g., silica and/or carbon black; between 10 and 80 phr of a blowing agent, e.g., an azodicarbonamide compound; and between 10 and 50 phr of a hot-melt compound with a melting point between 70° C. and 150° C., e.g., urea. The combination of the blowing agent and the hot-melt compound, at recommended high contents, makes it possible to very greatly reduce an expansion ratio and therefore a thickness of the rubber layer once the pneumatic tire is vulcanized, without affecting noise absorption properties provided by the blowing agent.

Abstract: A heat-expandable rubber layer is provided to an inner all of a pneumatic tire when the tire is in an uncured state. The rubber layer is expanded when the tire is in a vulcanized state. Once expanded, the rubber layer is capable of reducing rolling noises of the tire. The rubber layer includes an elastomer composition based on at least an elastomer, e.g., natural rubber or butyl rubber; a reinforcing filler, e.g., silica and/or carbon black; between 10 and 80 phr of a blowing agent, e.g., an azodicarbonamide compound; and between 10 and 50 phr of a hot-melt compound with a melting point between 70° C. and 150° C., e.g., urea. The combination of the blowing agent and the hot-melt compound, at recommended high contents, makes it possible to very greatly reduce an expansion ratio and therefore a thickness of the rubber layer once the pneumatic tire is vulcanized, without affecting noise absorption properties provided by the blowing agent.

Abstract: A radial tyre for a motor vehicle includes a crown, two beads, a crown reinforcement, and an inner crown layer. A tread of the crown includes a contact part located at a radially outer position and intended to make contact with a road surface. The inner crown layer is located at a radially inner position and is formed of an elastomeric material having a different formulation from that of the contact part of the tread. The inner crown layer is arranged circumferentially between the contact part of the tread and the crown reinforcement or between the crown reinforcement and a carcass reinforcement, and functions to reduce rolling noises of the tyre. The elastomeric material includes a rubber composition with at least: 50 to 100 phr of a copolymer based on styrene and butadiene with a Tg greater than ?40° C., a reinforcing filler, a hydrocarbon-based plasticizing resin, and a crosslinking system.

Abstract: A radial tyre for reducing rolling noise includes a tread with a contact part located at a radially outer position to make contact with the road, two inextensible beads, two sidewalls connecting the beads to the tread, a carcass reinforcement, a belt arranged circumferentially between the radially outer part of the tread and the carcass reinforcement, and an inner crown layer located at a radially inner position. A formulation of the inner crown layer is different from a formulation of the contact part of the tread, and includes: 50 to 100 phr (parts by weight per hundred parts of elastomer) of a copolymer based on styrene and butadiene with a glass transition temperature of greater than ?10° C., a reinforcing filler, and a crosslinking system.

Abstract: A radial tyre for motor vehicle includes: a crown with at least a tread and a crown reinforcement or belt, two inextensible beads, two sidewalls connecting the two inextensible beads to the tread, and a carcass reinforcement passing into the two sidewalls and anchored in the two inextensible beads. The belt is positioned circumferentially between the tread and the carcass reinforcement, and includes textile or metallic reinforcers coated with a rubber composition referred to as a “belt-coating rubber.” The belt-coating rubber, which is capable of reducing the tyre's rolling noise, includes a diene elastomer and more than 50 phr of a filler of high-density particles having a density of greater than 4 g/cm3.

Abstract: A heat-expandable rubber layer is provided to an inner all of a pneumatic tyre when the tyre is in an uncured state. The rubber layer is expanded when the tyre is in a vulcanized state. Once expanded, the rubber layer is capable of reducing rolling noises of the tyre. The rubber layer includes an elastomer composition based on at least an elastomer, e.g., natural rubber or butyl rubber; a reinforcing filler, e.g., silica and/or carbon black; between 10 and 80 phr of a blowing agent, e.g., an azodicarbonamide compound; and between 10 and 50 phr of a hot-melt compound with a melting point between 70° C. and 150° C., e.g., urea. The combination of the blowing agent and the hot-melt compound, at recommended high contents, makes it possible to very greatly reduce an expansion ratio and therefore a thickness of the rubber layer once the pneumatic tyre is vulcanized, without affecting noise absorption properties provided by the blowing agent.

Abstract: Radial tire for motor vehicle, comprising: a crown comprising a tread provided with at least one radially outer part intended to come into contact with the road; two beads, two sidewalls connecting the beads to the tread, a carcass reinforcement passing into the two sidewalls and anchored in the beads; the crown being reinforced by a crown reinforcement or belt placed circumferentially between the carcass reinforcement and the tread; a radially inner elastomer layer known as a “sublayer”, having a formulation different from the formulation of the radially outer elastomer layer, this sublayer being placed between the radially outer layer of the tread and the belt, wherein said sublayer comprises at least one diene elastomer and, as a high-density filler, more than 50 phr of particles having a density of greater than 4 g/cm3. This sublayer of specific formulation has the ability to reduce the rolling noise emitted by the tire without compromising its usage properties.