Abstract: The invention provides a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific guanidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan ?. The invention also provides a pneumatic tire using the rubber composition.

Abstract: An object of the present invention is to provide a crystal of a cyclic phosphonic acid sodium salt (2ccPA) with high purity and excellent storage stability and a method for producing the crystal.

Abstract: A power receiving device includes a power receiving coil formed to surround space around a coil central axis extending in a front-back direction of a vehicle body, for receiving electric power from a power transmitting coil in a non-contact manner while facing the power transmitting coil, a capacitor arranged adjacent to the power receiving coil in the direction in which the coil central axis extends, and a shield arranged between the power receiving coil and the capacitor. The effect on the capacitor during electric power transmission can be reduced.

Abstract: A coil unit includes ferrite cores; and a coil disposed to face the ferrite cores, the coil including a plurality of curve portions. Each curve portion is wound across a virtual straight line extending through a curvature center of the curve portion. The ferrite cores include curve portion ferrite cores disposed to face the curve portions, respectively. Each of the curve portion ferrite cores is provided such that a width of a region with a highest magnetic flux density is larger than a width of a region other than the region with the highest magnetic flux density, in a region that faces the coil, in a case where a length direction is defined as a direction in which the virtual straight line extends, and a width direction is defined as a direction perpendicular to the virtual straight line.

Abstract: A vehicle capable of receiving an electric power in a contactless manner includes a vehicle body and a power reception apparatus. A first region made of aluminum or formed so that a magnetic permeability and an electric resistance thereof are lower than a magnetic permeability and an electric resistance of aluminum, respectively, is provided at a position on one side in a reference direction relative to the power reception apparatus. A space and/or a second region formed so that a magnetic permeability and an electric resistance thereof are higher than the magnetic permeability and the electric resistance of the first region, respectively, is provided at a position on the other side in the reference direction. A winding axis of a power receiving coil is placed at a position deviating toward the one side in the reference direction from a central position in a vehicle width direction.

Abstract: In a power reception device, a ferrite includes an annular coil mount on which a power reception coil is disposed at the facing surface side, and a projection projecting in a power reception direction from a portion of the coil mount located on an inner side of the power reception coil, a back surface of the ferrite is provided with a hollow portion formed of the projection and the coil mount, the power reception coil is provided at the outer peripheral surface side of the projection, and a filter coil is provided along an inner peripheral surface of the hollow portion.

Abstract: A vehicle includes a power reception device which receives electric power from a power transmission device in a non-contact manner. The power reception device can be mounted on a bottom surface side of the vehicle. An accommodation space of the power reception device is defined between a base and a protective cover. Within the apparatus accommodation space of the power reception device is a frame that has a plurality of radial ribs extending radially from a center of the frame toward an outer peripheral portion of the frame. In addition, a side of an apparatus within the accommodation space closer to the vehicle abuts on the base, and a side of the apparatus opposite to the vehicle abuts on the protective cover.

Abstract: An object of the present invention is to provide a crystal of a cyclic phosphonic acid sodium salt (2ccPA) with high purity and excellent storage stability and a method for producing the crystal.

Abstract: A power receiving unit adopted for this power receiving device includes a core unit having a plate-like shape and including a side surface, an upper surface and a lower surface, and a power receiving coil helically wound about a coil winding axis to surround the core unit including the upper and lower surfaces, the shield including a first shield disposed on the side of one end of the power receiving unit in an axial direction of the coil winding axis, and a second shield disposed on the side of the other end of the power receiving unit in the axial direction of the coil winding axis, the shield being absent at least at a location directly above a center portion of the power receiving unit.

Abstract: A power supply ECU controls a converter to have a first control region in which a voltage is raised as a coupling coefficient is larger, and a second control region in which the voltage is maintained at a rating irrespective of a coupling coefficient. An ECU controls a converter such that an input impedance of the converter attains a prescribed value in the first control region and controls the converter such that received electric power becomes close to a target by changing the input impedance in the second control region.

Abstract: A power reception apparatus to which power is transferred from a power transmission apparatus in a contactless manner includes: a ferrite provided in a plate shape and having a first principal face and a second principal face; an annular coil provided on the first principal face of the ferrite; and a shield provided on the second principal face of the ferrite, wherein an outer peripheral portion of the coil is placed on an inner side relative to an outer peripheral portion of the ferrite, such that part of the first principal face is exposed on an outer-peripheral-portion side of the ferrite, and an outer peripheral side of the shield includes a stepped portion provided at a position away from the second principal face of the ferrite, such that part of the second principal face is exposed on the outer-peripheral -portion side of the ferrite.

Abstract: In this power transfer system, a power receiving coil and a power transmission coil are wound such that a first power transmission winding portion and a second power receiving winding portion do not overlap with each other when the first power transmission winding portion and the first power receiving winding portion overlap with each other at a position where a power transmission winding axis and a power receiving winding axis are positionally displaced when viewed in a plan view.

Abstract: An object of the present invention is to provide a crystal of a cyclic phosphonic acid sodium salt (2ccPA) with high purity and excellent storage stability and a method for producing the crystal.

Abstract: A power transmission device that transmits electric power to a power reception device in a contactless manner includes a power transmission coil unit, an electrical device connected to the power transmission coil unit, and an enclosure storing the power transmission coil unit and the electrical device. The enclosure includes an installation wall, an outer wall, a partitioning wall, and a cover portion closing an opening formed in a power transmission surface of the outer wall and allowing transmission of electric power by the power transmission coil unit. The partitioning wall is provided to partition the space in the enclosure into a coil-unit storing portion in which the cover portion is located and the power transmission coil unit is stored, and an electrical-device storing portion in which the electrical device is stored. The outer wall and the partitioning wall are made of metal.

Abstract: A power transmission device for transmitting power to a power receiving device in a noncontact manner, including: a power transmission unit for transmitting power to the power receiving device in a noncontact manner; a power supply unit, connected to an external power supply, for supplying power to the power transmission unit, and a housing housing the power transmission unit and the power supply unit, wherein the power supply unit includes first devices disposed around the power transmission unit, and a second device disposed between the power transmission unit and a bottom surface, in a state where the power transmission unit and the power supply unit are mounted on the bottom surface of the housing, and a height of each of the first devices from the bottom surface is higher than a height of the second device from the bottom surface.

Abstract: An electric power receiving device includes a ferrite, and a power receiving coil in which a hollow portion is formed. The power receiving coil is formed so as to surround a winding axis that extends in the thickness direction. When the power receiving coil and the ferrite are viewed from an observation position spaced apart from the power receiving coil in a direction in which the winding axis extends, notch portions are formed in an outer peripheral portion of the ferrite such that the notch portions overlap side portions of the coil. The width of each notch portion as measured in a circumferential direction of the power receiving coil increases in a direction away from the hollow portion of the power receiving coil.

Abstract: A power reception device includes a core unit having a plate-like shape, a plate-like fixing member having the core unit housed therein, a power reception coil, and a temperature measuring unit. Assuming that a side surface wound portion refers to a portion of a side surface of core unit around which the power reception coil is wound, and a center portion refers to a portion located at the center of the side surface wound portion in an extending direction of a coil winding axis and at the center of the core unit in a thickness direction, temperature measuring unit is provided in at least one of a high-temperature region including the center portion of the core unit and a portion around the center portion, and a position on a surface of the fixing member that faces the high-temperature region.

Abstract: A coil unit includes a ferrite including a coil base in a form of a frame, on which a coil is arranged, and formed from a plurality of divided ferrites. The plurality of divided ferrites include a first divided ferrite and a second divided ferrite which form a corner piece and a third divided ferrite and a fourth divided ferrite which form a side piece.

Abstract: In a power reception device, a ferrite includes an annular coil mount on which a power reception coil is disposed at the facing surface side, and a projection projecting in a power reception direction from a portion of the coil mount located on an inner side of the power reception coil, a back surface of the ferrite is provided with a hollow portion formed of the projection and the coil mount, the power reception coil is provided at the outer peripheral surface side of the projection, and a filter coil is provided along an inner peripheral surface of the hollow portion.

Abstract: A bottom portion of a vehicle includes a metal member formed of a metal having a higher magnetic permeability than aluminum, and a power reception coil including a low-turn-count portion with a smaller number of turns and a high-turn-count portion with a larger number of turns than the low-turn-count portion. In plan view as seen from below the metal member and the power reception coil, the low-turn-count-portion is located in at least a part of a facing portion of the power reception coil, the facing portion facing the metal member.