Satoru Terashima

Title: Satoru Terashima: Innovator in Abnormality Diagnosis and Motor Control Technologies

Introduction

Satoru Terashima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of abnormality diagnosis and motor control technologies. With a total of 7 patents to his name, Terashima's work has had a substantial impact on the industry.

Latest Patents

Terashima's latest patents include an abnormality diagnosis device, an abnormality diagnosis method, and an abnormality diagnosis system. The abnormality diagnosis device features a data acquirer that captures the current waveform and driving frequency of an electric motor. It also includes a storage component that retains a combination of the current value and driving frequency at the same time. A data determiner assesses whether the current value and driving frequency match the stored combination. An analyzer performs frequency analysis on the matched current waveform to extract sideband waves and calculate their spectrum intensity. The abnormality diagnosis processor then determines if an abnormality has occurred based on the spectrum intensity exceeding a certain threshold.

Additionally, Terashima has developed a motor control apparatus designed for structures with multiple synchronous motors connected in parallel. This apparatus utilizes a vector control unit that divides the current flowing in and out of the motors into q-axis and d-axis currents. It controls these currents based on command values. The abnormality detection unit identifies any issues, such as incorrect wiring or disconnection, by analyzing various parameters including q-axis inductance and rotation speed.

Career Highlights

Satoru Terashima is currently employed at Mitsubishi Electric Corporation, where he continues to innovate and develop advanced technologies. His work has been instrumental in enhancing the efficiency and reliability of motor control systems.

Collaborations

Throughout his career, Terashima has collaborated with notable colleagues, including Yoshiyuki Amemiya and Masato Ito. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Satoru Terashima is a distinguished inventor whose contributions to abnormality diagnosis and motor control technologies have made a lasting impact. His innovative patents and collaborative efforts continue to advance the field and inspire future developments.