JMAG-Studio is an electromagnetic field analysis software package developed by JRI Solutions, Ltd. that supports the design and development of motors, actuators, circuit components, antennas and other electric and electronic products. It has been supported and used by many companies and universities since 1983. JMAG has a long track record of use for analyzing motors and other rotating devices. JRI Solutions is constantly improving JMAG-Studio by incorporating features suggested in from our users and by using the latest technology developed through our research and accumulated analysis expertise.