Abstract: The present invention aims to provide an additive for a non-aqueous electrolyte solution which has excellent storage stability and which, when used in an electrical storage device, can form a stable SEI on the surface of an electrode to improve battery characteristics such as the cycle characteristics, the charge/discharge capacity, the high-temperature storage characteristics, suppression of gas generation, and reduction in the internal resistance. The present invention also aims to provide a non-aqueous electrolyte solution containing the additive for a non-aqueous electrolyte solution and an electrical storage device containing the non-aqueous electrolyte solution. The present invention relates to an additive for a non-aqueous electrolyte solution, the additive containing a cyclic imide compound represented by Formula (1-1), Formula (1-2), Formula (1-3), Formula (1-4), Formula (1-5), or Formula (1-6).

Abstract: A circuit board includes a circuit board pattern forming a part of an electronic circuit and including a mounting pattern group on which a receiving means for receiving an operation can be mounted. The electronic circuit is established even when the receiving means is mounted on any mounting pattern of the mounting pattern group.

Abstract: A continuous gas carburizing furnace includes a gas carburizing processing chamber (a preheating chamber 2, a heating chamber 3, a carburizing chamber 4, a diffusion chamber 5 and a temperature decrease chamber 6) in which a gas carburizing process is performed on a workpiece 50, an oil quenching chamber 8 in which oil quenching is performed on the workpiece 50, and a gas quenching chamber 7 in which gas quenching is performed on the workpiece 50. The gas carburizing processing chamber includes a temperature decrease chamber 6 in which the temperature of the workpiece heated by a gas carburizing process is lowered. The temperature decrease chamber 6, the gas quenching chamber 7 and the oil quenching chamber 8 are arranged in that order from the upstream side to the downstream side in the conveying direction of the workpiece 50, and are adjacent to each other.

Abstract: A continuous gas carburizing furnace includes a gas carburizing processing chamber (a preheating chamber 2, a heating chamber 3, a carburizing chamber 4, a diffusion chamber 5 and a temperature decrease chamber 6) in which a gas carburizing process is performed on a workpiece 50, an oil quenching chamber 8 in which oil quenching is performed on the workpiece 50, and a gas quenching chamber 7 in which gas quenching is performed on the workpiece 50. The gas carburizing processing chamber includes a temperature decrease chamber 6 in which the temperature of the workpiece heated by a gas carburizing process is lowered. The temperature decrease chamber 6, the gas quenching chamber 7 and the oil quenching chamber 8 are arranged in that order from the upstream side to the downstream side in the conveying direction of the workpiece 50, and are adjacent to each other.

Abstract: A fiber-reinforced ceramic green body containing fine ceramic fibers uniformly dispersed in a ceramic matrix. The green body is composed of 50 weight % or more of a ceramic main component such as Si.sub.3 N.sub.4 and 50 weight % or less of at least one ceramic additive such as Al.sub.2 O.sub.3 and Y.sub.2 O.sub.3, at least part of one or both of said ceramic main component and said ceramic additive being in the form of fine fibers. This green body is produced by a slip casting method.