Toyoshi Onitsuka

Title: Toyoshi Onitsuka: Innovator in Electric Motor Control Technology

Introduction

Toyoshi Onitsuka is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of electric motor control systems. His innovative approach has led to the development of a unique patent that enhances the efficiency of electric motor controllers.

Latest Patents

Onitsuka holds a patent for an "Electric motor controller resonance frequency detection apparatus." This invention provides a resonance frequency detector for electric motor controllers, allowing for high-speed measurement of resonance frequency through simple calculations. The system utilizes an inexpensive computer to detect resonance frequency effectively. The electric motor control system includes a detecting unit that measures the operation amount of the machine and a controller that receives commands to drive the electric motor. A command generator produces a sweep sine wave signal, which is input into the control system. The frequency information from the command generator and the detecting unit's signal are processed to determine the resonance frequency when the signal's absolute value reaches its maximum.

Career Highlights

Onitsuka is associated with Kabushiki Kaisha Yaskawa Denki, a prominent company in the field of electric motor technology. His work has been instrumental in advancing the capabilities of electric motor controllers, making them more efficient and cost-effective.

Collaborations

He has collaborated with notable coworkers, including Takehiko Komiya and Kazuhiro Hamasuna. Their combined expertise has contributed to the successful development of innovative technologies in the electric motor sector.

Conclusion

Toyoshi Onitsuka's contributions to electric motor control technology exemplify the impact of innovation in engineering. His patent for a resonance frequency detection apparatus showcases his commitment to enhancing the efficiency of electric motor systems.