Japan Superconductor Technology Inc.

Sumitomo Rubber Industries Limited

Kobe Steel, Ltd.

Satoshi Ito

Kiyoto Maruoka

Koji Inoue

Kenichi Inoue

Kyoji Zaitsu

Masashi Hamakubo

Ryosuke Fujii

Hitoshi Miyata

Kazuyoshi Saitou

Tsuyoshi Ito

Hirochika Watanabe

A sheet transport roller having a high friction coefficient and a rubber composition for forming a roller main body thereof. The rubber composition of the present disclosure, which is a rubber composition for forming the roller main body of the sheet transport roller, contains a rubber component containing an ethylene-α-olefin copolymer and a rosin component.

Sheet transport roller rubber composition and sheet transport roller

Provided is a helium recondensation apparatus for a cryostat, which can stably recondense vapor of helium in the cryostat while preventing a pipeline for the recondensation from being clogged. A recondensation apparatus includes a freezer, a first heat exchanger, a first recondensing chamber, and a first connection part. The first heat exchanger stores heat-exchanging helium in a helium tank included in an NMR apparatus, and permits the heat-exchanging helium to evaporate owing to heat of vaporization taken from vapor of coolant helium in the helium tank, thereby permitting the coolant helium to recondense through heat exchange with the heat-exchanging helium. The first connection part is separated from the coolant helium in the helium tank and permits the heat-exchanging helium to flow between the first heat exchanger and the first recondensing chamber therethrough.

Apparatus for recondensing helium for cryostat

Provided is a cooling container, that includes a container body, a first cooling target terminal, a second cooling target terminal, a cylinder holder raised and lowered while holding a cylinder in a posture where first and second lower surfaces of first-stage and second-stage cold heads of the refrigerator are opposed to first and second cooling target surfaces of the first and the second-stage cold heads, respectively, a second raising and lowering mechanism raising and lowering the cylinder holder between a position where the second lower surface contacts the second cooling target surface and a position thereabove, and a first raising and lowering mechanism raising and lowering the first cooling target terminal between a position where the first lower surface contacts the first cooling target surface and a position therebelow.

Cooling container to which refrigerator is attachable

Provided is a superconducting coil pre-cooling method for cooling a superconducting coil in a superconducting magnet apparatus including: the superconducting coil; a helium tank; a radiation shield; a vacuum case; and a refrigerator including a first cooling stage and a second cooling stage, a passage being disposed between the refrigerator and the radiation shield. The method includes: a supplying step of supplying a working medium in a gaseous state having a condensation point lower than a condensation point of nitrogen into a refrigerator surrounding tube; a cooling step of cooling the superconducting coil in a tank body by the working medium in the gaseous state that is cooled in the first cooling stage and further cooled in the second cooling stage after passing through the passage; and a discharging step of discharging the working medium that has cooled the superconducting coil in the tank body, out of the vacuum case.

Superconducting coil pre-cooling method and superconducting magnet apparatus

Liquefier includes first compression section which is driven by a superconducting motor and which compresses a substance in a gaseous state. Cooling circuit includes: second compression section which is driven by the motor when first compression section is being driven by the motor and which compresses a refrigerant; first heat exchange section which cools the refrigerant by causing heat exchange between a substance in a tank and the compressed refrigerant; second expansion section which brings the refrigerant down to or below a critical temperature of a superconducting material by expanding the cooled refrigerant; and second heat exchange section which imparts cold heat of the refrigerant to the substance by causing heat exchange between the substance in the tank and the refrigerant after cooling a superconducting magnet, and supplies the refrigerant brought down to or below the critical temperature by second expansion section to the motor and cools the superconducting magnet.

Liquefaction system and power generation system

To accurately measure a tread radius of a rotating tire. A method for measuring a tread radius has a tread radius measuring process which comprises a measurement step, an averaging step, and a calculation step. In the measurement step, the radial distances from three laser displacement meters to the tread surface of the rotating tire are measured to obtain radial distance data yyywhose number is m per the entire circumference of the tire. In the averaging step, an averaged value yN, yN, yN is obtained by averaging the remaining radial distance data from which noise data have been removed by performing a smoothing process on the number m of the radial distance data yyyIn the calculation step, a tread radius TR is calculated from the averaged values yN, yN, yN and the distances xxxof the laser displacement meters in the axial direction of the tire.

Growing community of inventors

Kobe, Japan

Satoshi Ito