PROBLEM TO BE SOLVED: To enable coil which can generate desired thrust to be designed in a short time.;SOLUTION: A coil design method for generating thrust in cooperation with magnet at the time of energization has: a design step of designing the coil on the basis of a design target value of the thrust; a thrust calculation step of calculating the thrust from a design coil designed at the design step; a map preparation step of preparing a magnetic force distribution map indicating a distribution of magnetic force working from the magnet with respect to the design coil; a determination step of determining whether or not a thrust calculation value calculated by the thrust calculation step reaches the design target value; and a redesign step of specifying a thrust contributing area contributing to the thrust on the basis of the magnetic force distribution map when a determination result of the determination step is negative, and redesigning the coil so that a part included in the thrust contribution area becomes larger than the design coil.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2019,JPO&INPIT
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