Location History:
- Aichi, JP (1997)
- Tokyo, JP (1999 - 2001)
Company Filing History:
3 out of 21,351 
1 out of 177 
Years Active: 1997-2001
Title: Fumio Kumazaki: Innovator in Electric Motor Control Technology
Introduction
Fumio Kumazaki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electric motor control technology. With a total of 3 patents to his name, his work has advanced the efficiency and functionality of electric motors.
Latest Patents
Kumazaki's latest patents include a "Controller for AC Motor" and a "Position Control Unit for Electric Motor." The controller for AC motor features a sophisticated design that allows for the detection of a three-phase brushless DC motor's current. This design enables the separate control of torque split current and exciting split current, ensuring smooth motor operation even in the presence of current detector offset errors. The position control unit provides a torque command computing device that outputs a torque command signal based on external positional command signals. This innovation allows for precise control of the electric motor's torque, enhancing its performance.
Career Highlights
Throughout his career, Kumazaki has worked with prominent companies such as Mitsubishi Denki and Mitsubishi Electric Engineering Company. His experience in these organizations has contributed to his expertise in electric motor technologies.
Collaborations
Kumazaki has collaborated with notable colleagues, including Tetsuaki Nagano and Masanori Ozaki. Their joint efforts have furthered advancements in electric motor control systems.
Conclusion
Fumio Kumazaki's contributions to electric motor control technology through his patents and collaborations highlight his role as an influential inventor in the field. His innovations continue to impact the efficiency and functionality of electric motors.