Yoshihiro Okumatsu

Title: Innovations by Yoshihiro Okumatsu

Introduction

Yoshihiro Okumatsu is a notable inventor based in Miyazaki, Japan. He has made significant contributions to the field of motor control systems and stepping motor drivers. With a total of 3 patents to his name, Okumatsu's work has advanced the technology used in motor control applications.

Latest Patents

One of his latest patents is a motor control system that includes a magnetic encoder with a magnetic drum fixed to the output shaft of a motor. This system features a magnetic sensor positioned against the periphery of the magnetic drum, an angle calculating unit, and an error correction mechanism. The motor operation controlling unit outputs a voltage command value that corresponds to the calculated correction angle or speed.

Another significant patent is a stepping motor driver designed for position and speed control. This driver incorporates a current control means, current sensors for detecting phase currents, and a magnetic pole position estimation unit. The estimation unit calculates the magnetic pole position based on applied voltages and detected phase current values.

Career Highlights

Yoshihiro Okumatsu is currently employed at Japan Servo Co., Ltd., where he continues to innovate in the field of motor control technology. His work has been instrumental in enhancing the efficiency and performance of motor systems.

Collaborations

Okumatsu has collaborated with notable coworkers such as Yasuo Matsuda and Yoshifumi Kuwano. Their combined expertise has contributed to the development of advanced motor control solutions.

Conclusion

Yoshihiro Okumatsu's contributions to motor control systems and stepping motor drivers highlight his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology in this critical field.