Seiki Amikura

Title: Seiki Amikura: Innovator in Electric Vehicle and Induction Motor Control Technologies

Introduction

Seiki Amikura is a notable inventor based in Katsuta, Japan. He has made significant contributions to the field of electric vehicle and induction motor control technologies. With a total of 2 patents to his name, Amikura's work reflects his commitment to advancing engineering solutions.

Latest Patents

Amikura's latest patents include a "Control apparatus for electric vehicles" and a "Control apparatus for an induction motor." The control apparatus for electric vehicles features a first chopper connected in parallel with the armatures of main motors, which operates during braking mode, and a second chopper that operates during powering mode. This innovative design allows for a more economical control apparatus by reducing the number of choppers needed, thus simplifying the main circuit arrangement.

The control apparatus for an induction motor utilizes a variable voltage, variable frequency inverter that is controlled by PWM (Pulse Width Modulation). This system calculates the secondary current component and exciting current component based on the motor's current and actual slip frequency. By accurately determining the actual torque produced by the motor, the system can maintain high precision in torque control.

Career Highlights

Seiki Amikura is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies in the field of electrical engineering. His work has been instrumental in enhancing the efficiency and performance of electric vehicles and induction motors.

Collaborations

Amikura has collaborated with esteemed colleagues such as Yoshiji Jimbo and Akira Horie. Their combined expertise has contributed to the successful development of innovative technologies in their respective fields.

Conclusion

Seiki Amikura's contributions to electric vehicle and induction motor control technologies highlight his role as a leading inventor in Japan. His patents reflect a deep understanding of engineering principles and a commitment to innovation.