Masahiko Akamatsu

Inductor type synchronous motor driving system for minute control of the position and the rotation angle of the motor

Semiconductor switch device

Induction motor control system

Voltage source type power converting apparatus

Semiconductor power converter and its applied apparatus

Homopolar synchronous machine

AC output power control system

Shunt circuit for an insulation type current transformer to adapt to a wide-band of frequency

Compensation control device for a power system

AC current control system for AC power supply