Abstract: A parking assistance device includes an obstacle detection unit configured to detect an obstacle around a vehicle, a boundary detection unit configured to detect a boundary of a parking section, and a target position determination unit configured to determine a target position of a movement route of the vehicle based on the detected boundary. The target position determination unit recognizes, as a wheel stopper, the obstacle detected in a detection area that is set at a position in the parking section on a back side of an entrance and exit of the parking section based on the detected boundary, regardless of a height of the obstacle.

Abstract: An ultraviolet light fluid treatment device that can enhance treatment effects is provided. The ultraviolet light fluid treatment device includes an inlet and an outlet of fluid; a flow channel connecting the inlet and the outlet and including a plurality of branch flow channels branching from the inlet, and a merged flow channel connected to a downstream side of each of the branch flow channels; a first light source configured to emit ultraviolet light to the merged flow channel; and a plurality of second light sources configured to emit the ultraviolet light to the plurality of respective branch flow channels.

Abstract: A V-ribbed belt in which a friction transmission surface of a compression rubber layer is coated with a knit fabric is provided. The compression rubber layer is formed of the cured product of a rubber composition containing an ethylene-?-olefin elastomer and carbon black wherein the carbon black contains a soft carbon having a primary particle diameter of at least 40 nm and a hard carbon having a primary particle diameter of less than 40 nm. The ratio between the number of particles of the soft carbon and hard carbon is former/latter=3/97 to 25/75.

Abstract: Provided is a separation and recovery method that is method of separating and recovering, from a mixture containing at least a resin layer 1 containing a hydrolyzable polymer A as a main component and a resin layer 2 containing a nonhydrolyzable polymer B as a main component, a hydrolytic component a of the hydrolyzable polymer A and the nonhydrolyzable polymer B, the method including a decomposition and separation step of subjecting the mixture to a hydrothermal reaction treatment to hydrolyze and separate the hydrolyzable polymer A, and to separate the nonhydrolyzable polymer B while a molecular weight of thereof is maintained.

Abstract: An in-wheel motor having a case including a motor case, a motor cover, and a reduction gear case, wherein the oil pump includes a pump chamber formed in the motor cover, a pump cover attached to the motor cover and closing the pump chamber, It has a pump shaft that penetrates the pump cover, a drive gear that is attached to the pump shaft and arranged inside the pump chamber, and a driven gear that meshes with the drive gear and is arranged inside the pump chamber, the pump shaft is attached to the input shaft of the reduction gear, the pump cover is bolted to the motor cover from the inside of the case, and the pump cover is integrally formed with a positioning structure for determining the position of the pump shaft.

Abstract: An in-wheel motor including: a motor disposed inside a wheel; and a case that accommodates the motor, characterized in that: a lower arm mounting portion to which the case and a lower arm are connected, is included; the lower arm mounting portion is disposed at a position facing a surface of the wheel; and the case includes a drain plug disposed at a position between the surface of the wheel and the lower arm mounting portion.

Abstract: A motor unit includes a first rotating shaft driven by a motor and including a first gear, a pair of first bearings, each of which is located on each side of the first gear, and that supports the first rotating shaft to the casing such that the first rotating shaft is rotatable, a second rotating shaft being parallel to the first rotating shaft and including a second gear meshing with the first gear, and a pair of second bearings, each of which is located on each side of the second gear, and that supports the second rotating shaft to the casing such that the second rotating shaft is rotatable. The second bearings are located between the first bearings in an axial direction parallel to the first rotating shaft and the second rotating shaft, and each of the second bearings includes an outer ring, an inner ring, and a rolling element.

Abstract: A gear case of an in-wheel motor drive device houses first and second helical gears, has a first opening in its inner wall through which a motor main shaft passes, and has a second opening in its outer wall through which an axle passes. The in-wheel motor drive device further includes a first thrust bearing attached to the outer wall and supporting the first helical gear, and a second thrust bearing attached to the inner wall and supporting the second helical gear. The directions of helical teeth of the first and second helical gears are set so that when a motor vehicle travels forward, a thrust load directed outward in the vehicle width direction is applied to the first helical gear, and a thrust load directed toward the middle in the vehicle width direction is applied to the second helical gear.

Abstract: In a V-ribbed belt provided with a compressed rubber layer having V-ribbed portions extending parallel to one another in a belt longitudinal direction, and having a friction transmission surface at least a portion of which is capable of coming into contact with a V-ribbed groove portion of a pulley, the friction transmission surface of the compressed rubber layer is formed from a rubber composition vulcanizate including a rubber component and a sound generation resistance improving agent. A difference between a radius of curvature of a rib distal end portion of the pulley and a radius of curvature of a rib bottom portion of the belt is adjusted to be ?0.08-0.08 mm. The radius of curvature of the rib bottom portion may be approximately 0.1-0.5 mm. The radius of curvature difference may be ?0.05-0.05 mm. The pulley may include a pulley having an outer diameter at most equal to 65 mm.

Abstract: A piezoelectric material includes: an oxide containing Na, Ba, Nb, Ti, and Mn, in which the oxide has a perovskite-type structure, a total amount of metal elements other than Na, Ba, Nb, Ti, and Mn contained in the piezoelectric material is 0.5 mol % or less with respect to a total amount of Na, Ba, Nb, Ti, and Mn, a molar ratio x of Ti to a total molar amount of Nb and Ti is 0.05?x?0.12, a molar ratio y of Na to Nb is 0.93?y?0.98, a molar ratio z of Ba to Ti is 1.09?z?1.60, a molar ratio m of Mn to the total molar amount of Nb and Ti is 0.0006?m?0.0030, and 1.07?y×z?1.50 is satisfied.

Abstract: A V-ribbed belt has a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another. The V-ribbed belt includes a compression rubber layer including a frictional power transmission face at least a part of which is configured to come in contact with a V-rib groove portion of pulleys. The frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver. A V-rib angle of the V-rib portions is larger than a V-rib groove angle of the pulleys by 5° to 9°.

Abstract: The problem of the present invention is to provide a patch preparation superior in the skin permeability of drugs and having good adhesive property. The present invention relates to a patch preparation containing a drug (excluding tandospirone and a pharmaceutically acceptable salt thereof), levulinic acid, and propylene glycol fatty acid ester in the adhesive layer, which is superior in the practical adhesive property and skin permeability of drugs.

Abstract: A lead-free piezoelectric material includes perovskite-type metal oxide containing Na, Nb, Ba, Ti, and Mg and indicates excellent piezoelectric properties. The piezoelectric material satisfies the following relational expression (1): 0.430?a?0.460, 0.433?b?0.479, 0.040?c?0.070, 0.0125?d?0.0650, 0.0015?e?0.0092, 0.9×3e?c?d?1.1×3e, a+b+c+d+e=1, where a, b, c, d, and e denote the relative numbers of Na, Nb, Ba, Ti, and Mg atoms, respectively.

Abstract: Provided is a lead-free piezoelectric material reduced in dielectric loss tangent, and achieving both a large piezoelectric constant and a large mechanical quality factor. A piezoelectric material according to at least one embodiment of the present disclosure is a piezoelectric material including a main component formed of a perovskite-type metal oxide represented by the general formula (1): Nax+s(1?y)(BiwBa1?s?w)1?yNbyTi1?yO3 (where 0.84?x?0.92, 0.84?y?0.92, 0.002?(w+s)(1?y)?0.035, and 0.9?w/s?1.1), and a Mn component, wherein the content of the Mn is 0.01 mol % or more and 1.00 mol % or less with respect to the perovskite-type metal oxide.

Abstract: A molded resin product includes a design layer including a decorative layer having a first color, a shielding layer having a second color different from the first color, and a resin base layer. A cover layer formed of a polymer film is disposed close to one end of the design layer. Part of the decorative layer exposed from the shielding layer serves as an exposed region. The exposed region and part of the shielding layer constitute a pattern portion presenting a predetermined figure or character when viewed in plan through the cover layer. The rest of the shielding layer constitutes a base portion. The layer thickness of the base portion is set smaller than the layer thickness of the pattern portion in a region thereof where the shielding layer is formed.

Abstract: A V-ribbed belt includes a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another, and a compression rubber layer including a frictional power transmission face at least a part of which can come into contact with a V-rib groove portion of a pulley. The frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver. A difference (Rp?Rb) between a curvature radius Rp of a rib top end of the pulley and a curvature radius Rb of a rib bottom portion of the V-ribbed belt is ?0.08 to 0.08 mm.

Abstract: The present invention relates to a V-ribbed belt in which a friction transmission surface of a compression rubber layer is coated with a knit fabric. The compression rubber layer is formed of the cured product of a rubber composition containing an ethylene-?-olefin elastomer and carbon black wherein the carbon black contains a soft carbon having a primary particle diameter of at least 40 nm and a hard carbon having a primary particle diameter of less than 40 nm. The ratio between the number of particles of the soft carbon and hard carbon is former/latter=3/97 to 25/75.

Abstract: A molded resin product includes a design layer including a decorative layer having a first color, a shielding layer having a second color different from the first color, and a resin base layer. A cover layer formed of a polymer film is disposed close to one end of the design layer. Part of the decorative layer exposed from the shielding layer serves as an exposed region. The exposed region and part of the shielding layer constitute a pattern portion presenting a predetermined figure or character when viewed in plan through the cover layer. The rest of the shielding layer constitutes a base portion. The layer thickness of the base portion is set smaller than the layer thickness of the pattern portion in a region thereof where the shielding layer is formed.

Abstract: A piezoelectric material includes: an oxide containing Na, Ba, Nb, Ti, and Mn, in which the oxide has a perovskite-type structure, a total amount of metal elements other than Na, Ba, Nb, Ti, and Mn contained in the piezoelectric material is 0.5 mol % or less with respect to a total amount of Na, Ba, Nb, Ti, and Mn, a molar ratio x of Ti to a total molar amount of Nb and Ti is 0.05?x?0.12, a molar ratio y of Na to Nb is 0.93?y?0.98, a molar ratio z of Ba to Ti is 1.09?z?1.60, a molar ratio m of Mn to the total molar amount of Nb and Ti is 0.0006?m?0.0030, and 1.07?y×z?1.50 is satisfied.

Abstract: Provided is a lead-free piezoelectric material reduced in dielectric loss tangent, and achieving both a large piezoelectric constant and a large mechanical quality factor. A piezoelectric material according to at least one embodiment of the present disclosure is a piezoelectric material including a main component formed of a perovskite-type metal oxide represented by the general formula (1): Nax+s(1?y)(BiwBa1?s?w)1?yNbyTi1?yO3 (where 0.84?x?0.92, 0.84?y?0.92, 0.002?(w+s)(1?y)?0.035, and 0.9?w/s?1.1), and a Mn component, wherein the content of the Mn is 0.01 mol % or more and 1.00 mol % or less with respect to the perovskite-type metal oxide.