Abstract: [Problem] To provide a magnetic resonance wireless power transfer device which allows constant transmission power and high transmission efficiency to be maintained over a long transmission distance even when the distance (transmission distance) between a transmitter coil and a receiver coil changes.

Abstract: Pieces of information on multiple file management systems are managed by one contract in a distributed ledger. An administrator terminal includes: a file management system generation unit that issues a contract generation transaction for generating, in blockchain data, a contract in which a network identifier that identifies a file management system is associated with an identifier of a participant terminal in a blockchain system, and notifying the participant terminal of the network identifier and an identifier of the contract; and a file management control unit that issues a registration transaction for registering, in the contract, connection information of the administrator terminal in the file management system, acquires connection information of the participant terminal in the file management system from the contract, and establishes a P2P connection with the participant terminal based on the acquired connection information.

Abstract: An electrodeposit formed by using a tin or tin alloy plating bath containing a prescribed branched polyoxyalkylene compound, such as an alkylene oxide adduct of aliphatic monoamine or polyamine in which a plurality of oxyalkylene chains are bonded to a nitrogen atom of an amine structure in a molecule, or an alkylene oxide adduct of glycerin or polyglycerin in which oxyalkylene chains are respectively bonded to a plurality of oxygen atoms of an alcohol structure in a molecule, suppresses formation defect such as abnormal growth of the electrodeposit. The electrodeposit also improves yield from the viewpoint of quality control.

Abstract: A biopsy forceps includes: a forceps part having a forceps cup that may open and close; a bending part that is configured to be bendable and includes the forceps part at the front end thereof; an operation part for operating opening and closing of the forceps cup and bending of the bending part; a shaft part coupled to the bending part and the operation part; a first operating member that is inserted through the shaft part, the first operating member being for opening and closing the forceps cup in conjunction with the operation of the operation part; a second operating member that is inserted through the shaft part, the second operating member being for bending the bending part in conjunction with the operation of the operation part; and a contrast agent supply tube that is inserted through the shaft part, the contrast agent supply tube having a distal end open to the forceps part and a proximal end open to the operation part.

Abstract: A stent system according to the present invention is for use in retrieving a blood clot from the brain region and includes a wire; a first stent connected to a distal portion of the wire; a first outer sheath that covers and is fixed to a portion of the wire proximal to the first stent; and a second stent disposed on a portion of the wire proximal to the first stent, in which the second stent is configured to be movable toward or away from the first stent.

Abstract: A foreign substance removing device includes a tubular member and a retriever configured to be expandable to and contractible from a predetermined shape. The retriever includes main wires disposed to be centered around a tube axis of the tubular member, and sub wires each connecting adjacent ones of the main wires to each other. Each of the main wires is configured to curve when the retriever is expanded such that a space having a predetermined size is provided by the main wires. Each of the sub wires is configured to be foldable at at least one point between the adjacent ones of the main wires. When the retriever is expanded, the folding points of the sub wires are positioned inside the space such that the sub wires do not protrude out of the main wires.

Abstract: A stent according to the invention includes: a strut extending in a predetermined direction; a first protrusion provided on the strut, the first protrusion being substantially L-shaped and extending in a direction away from the strut and in a direction toward a distal side in the predetermined direction; a second protrusion that is provided on the strut and located distal to the first protrusion, the second protrusion being substantially L-shaped, extending in a direction away from the strut and in a direction toward a proximal side in the predetermined direction, and having a tip spaced apart from a tip of the first protrusion; and an opaque member being substantially tubular and highly opaque to radiation, the opaque member having two end portions in which the first and second protrusions are inserted, respectively.

Abstract: A fluid heating component including: a pillar-shaped member made of ceramics and formed with through channels through which a fluid passes, and a conductive coating layer disposed on at least a part of a circumferential surface of the pillar-shaped member, wherein the conductive coating layer is disposed on coats the whole circumference of a cut surface of the pillar-shaped member in a state where the conducive coating layer is electrically connected, in the cut surface of the pillar-shaped member which is perpendicular to a passing direction of the fluid.

Abstract: A fluid heating component including: a porous body made of ceramics and formed with through channels through which a fluid passes, and a conductive coating layer disposed on a through channel surface of at least a part of each through channel, wherein the conductive coating layer is electrically connected, and is continuous.

Abstract: A method for producing a silicon carbide sintered body, comprising adding water to a raw material mixture containing silicon carbide powder, at least one binder, and optionally at least one carbon source other than the silicon carbide and the at least one binder, and subjecting the raw material mixture to kneading, molding, and drying in this order, to obtain a dried body; heating the dried body to remove organic substances from the dried body to obtain a degreased body; and firing the degreased body in an inert atmosphere to obtain a silicon carbide sintered body. The method comprises controlling an expansion/shrinkage rate of the sintered body by adjusting at least one of (1) an amount of the at least one carbon source in the raw material mixture, (2) an amount of the at least one binder in the raw material mixture, and (3) a degreasing rate.

Abstract: A stent according to the invention includes: a strut extending in a predetermined direction; a first protrusion provided on the strut, the first protrusion being substantially L-shaped and extending in a direction away from the strut and in a direction toward a distal side in the predetermined direction; a second protrusion that is provided on the strut and located distal to the first protrusion, the second protrusion being substantially L-shaped, extending in a direction away from the strut and in a direction toward a proximal side in the predetermined direction, and having a tip spaced apart from a tip of the first protrusion; and an opaque member being substantially tubular and highly opaque to radiation, the opaque member having two end portions in which the first and second protrusions are inserted, respectively.

Abstract: A stent system according to the present invention is for use in retrieving a blood clot from the brain region and includes a wire; a first stent connected to a distal portion of the wire; a first outer sheath that covers and is fixed to a portion of the wire proximal to the first stent; and a second stent disposed on a portion of the wire proximal to the first stent, in which the second stent is configured to be movable toward or away from the first stent.

Abstract: A foreign substance removing device includes a tubular member and a retriever configured to be expandable to and contractible from a predetermined shape. The retriever includes main wires disposed to be centered around a tube axis of the tubular member, and sub wires each connecting adjacent ones of the main wires to each other. Each of the main wires is configured to curve when the retriever is expanded such that a space having a predetermined size is provided by the main wires. Each of the sub wires is configured to be foldable at at least one point between the adjacent ones of the main wires. When the retriever is expanded, the folding points of the sub wires are positioned inside the space such that the sub wires do not protrude out of the main wires.

Abstract: An electrodeposit formed by using a tin or tin alloy plating bath containing a prescribed branched polyoxyalkylene compound, such as an alkylene oxide adduct of aliphatic monoamine or polyamine in which a plurality of oxyalkylene chains are bonded to a nitrogen atom of an amine structure in a molecule, or an alkylene oxide adduct of glycerin or polyglycerin in which oxyalkylene chains are respectively bonded to a plurality of oxygen atoms of an alcohol structure in a molecule, suppresses formation defect such as abnormal growth of the electrodeposit. The electrodeposit also improves yield from the viewpoint of quality control.

Abstract: A fluid heating component including: a porous body made of ceramics and formed with through channels through which a fluid passes, and a conductive coating layer disposed on a through channel surface of at least a part of each through channel, wherein the conductive coating layer is electrically connected, and is continuous.

Abstract: A fluid heating component including: a pillar-shaped member made of ceramics and formed with through channels through which a fluid passes, and a conductive coating layer disposed on at least a part of a circumferential surface of the pillar-shaped member, wherein the conductive coating layer is disposed on coats the whole circumference of a cut surface of the pillar-shaped member in a state where the conducive coating layer is electrically connected, in the cut surface of the pillar-shaped member which is perpendicular to a passing direction of the fluid.

Abstract: A battery includes a battery case; an outside member that is arranged on an outer portion of the battery case, and is made of an Al—Mg alloy or Al—Mg—Si alloy; a collector member made of pure aluminum, which has i) an extending portion that extends from within the battery case, passes through a first through-hole provided in the battery case and a second through-hole in the outside member, and protrudes out of the battery case, and ii) a crimped portion that spreads out toward an outside of the second through-hole from the extending portion, and circularly covers a periphery of the second through-hole in the outside member; as well as a bead that electrically connects an outer peripheral edge portion of the crimped portion to the outside member; and an additional bead that is positioned farther toward a radial inside of the crimped portion than the bead.

Abstract: A method for producing a silicon carbide sintered body, comprising: a step 1 of adding water to a raw material mixture containing silicon carbide powder, at least one binder, and optionally at least one carbon source other than the silicon carbide and the at least one binder, and subjecting the raw material mixture with water to kneading, molding, and drying in this order, to obtain a dried body; a step 2 of heating the dried body obtained in the step 1 to remove organic substances from the dried body to obtain a degreased body; and a step 3 of firing the degreased body obtained in the step 2 in an inert atmosphere to obtain a silicon carbide sintered body, wherein the method comprises controlling an expansion/shrinkage rate of the sintered body in the step 3 by adjusting one or two or three selected from the group consisting of (1) an amount of the at least one carbon source other than the silicon carbide and the at least one binder in the raw material mixture, (2) an amount of the at least one binder in the

Abstract: The invention provides a chain and a chain guide plate that suppress occurrence of noise during chain traveling while attaining a reduction in costs and also attaining space saving. A chain includes first plate rows and second late rows. Each of the first plate rows includes a guide plate including a guide slide contact section for coming into slide contact with an inner side guide. The guide slide contact section extends in a chain longitudinal direction to be asymmetrical relative to an imaginary center line. During guiding by the inner side guide, lines drawn by the guide slide contact sections of a plurality of the guide plates are continuous in the chain longitudinal direction.

Abstract: A specific nitrogen-containing heterocyclic compound having a urea structure, an electron transporting material containing the nitrogen-containing heterocyclic compound, and an organic electroluminescence device including a light emitting layer and an electron transporting layer between a cathode and an anode in which the electron transporting layer includes the electron transporting material or the nitrogen-containing heterocyclic derivative. An organic EL device exhibiting high emission efficiency even at low voltage and a material for organic EL devices are described.