Shigemichi Matsuka

Title: Shigemichi Matsuka: Innovator in Motor Control and Rolling Mill Technology

Introduction

Shigemichi Matsuka is a notable inventor based in Hitachi, Japan. He has made significant contributions to the fields of motor control and rolling mill technology. With a total of 3 patents to his name, Matsuka's work has had a considerable impact on industrial processes.

Latest Patents

Matsuka's latest patents include a "Motor speed control apparatus" and a "Gauge control method and system for rolling mill." The motor speed control apparatus involves controlling a motor using pulse signals applied to the gates of thyristors in a thyristor switching circuit. The speed of the motor is detected by a speed detector, and the instantaneous speed is calculated based on current detection and prior speed data. This allows for precise control of the motor's speed based on deviations from a desired output signal.

The gauge control method and system for rolling mills focuses on controlling strip thickness during the rolling process. It calculates changes in strip thickness based on sampling values at the entrance side of a mill stand. By determining the press-down speed and workpiece tension, the system minimizes changes in thickness during the sampling period, ensuring consistent quality in rolled materials.

Career Highlights

Matsuka is associated with Hitachi, Ltd., a leading company in technology and innovation. His work has contributed to advancements in motor control systems and rolling mill operations, showcasing his expertise in engineering and technology.

Collaborations

Matsuka has collaborated with notable coworkers such as Shinya Tanifuji and Ken Ichiryu. Their combined efforts have furthered the development of innovative solutions in their respective fields.

Conclusion

Shigemichi Matsuka's contributions to motor control and rolling mill technology highlight his role as an influential inventor. His patents reflect a commitment to improving industrial processes and enhancing efficiency.