Yoshifumi Okitsu

Title: **Yoshifumi Okitsu: Innovator in Positioning Control Systems**

Introduction: **Yoshifumi Okitsu** is an accomplished inventor based in **Azumino, Japan**, known for his significant contributions to the field of positioning control systems. With a total of **8 patents** to his name, he has developed innovative solutions that enhance the performance and reliability of actuators equipped with strain wave gearing.

Latest Patents: **Okitsu's latest patents** include two groundbreaking technologies focused on improving positioning control. The first patent is a **positioning control device of an actuator provided with strain wave gearing using H-∞ control**. This invention features a full-closed control system designed to feedback the position of a load shaft, effectively driving and controlling the motor to achieve precise positioning. By employing an H-∞ compensator, the system can minimize mechanical vibration during positioning responses caused by angular transmission errors in strain wave gearing.

The second patent details a **positioning control device for an actuator provided with strain wave gearing using a full-closed control system with a state observer**. This patent introduces a state-feedback control system that utilizes a state observer to estimate motor shaft positions and velocities. This technology successfully suppresses resonant vibrations related to angular transmission errors, enabling highly accurate positioning for the load shaft.

Career Highlights: **Yoshifumi Okitsu's career** has been marked by his work with leading organizations in the engineering and technology sectors. He has served at **Harmonic Drive Systems, Inc.**, where he developed innovative technologies related to motion control systems. Additionally, he has worked with the **Nagoya Institute of Technology**, contributing to academic advancements in the field of engineering.

Collaborations: Throughout his career, **Okitsu has collaborated with notable colleagues**, including **Makoto Iwasaki** and **Kozo Sasaki**. Their combined expertise has contributed to furthering research and development in positioning technologies.

Conclusion: In conclusion, **Yoshifumi Okitsu** stands out as a pioneering inventor dedicated to advancing the field of actuator control systems. His innovative patents and collaborative efforts have not only enhanced the capabilities of strain wave gearing technologies but have also made significant contributions to the engineering industry. Okitsu's work continues to inspire others in the field of innovation and invention.