To provide a superconducting motor generator of a superconducting type which can minimize the use of input by overcoming big problems involved in a conventional electric motor and generator, such as weight and power supply quantity, through minimization of these quantities. 器具類を超電導にする為に超電導用の軽量で小型で強力な電動機発電機に取りかえることである。 - 特許庁