Shigekazu Okumura

Title: Shigekazu Okumura: Innovator in Vehicle Control Technologies

Introduction

Shigekazu Okumura is a prominent inventor based in Sakurai, Japan. He has made significant contributions to the field of vehicle control technologies, holding a total of four patents. His innovative work focuses on enhancing the safety and efficiency of vehicle steering systems and motor control devices.

Latest Patents

One of Okumura's latest patents is a vehicle steering system. This system identifies short-circuited FETs among low-side FETs by detecting maximum phase voltages during steering operations. The system compares these voltages to identify any short-circuit phases. Additionally, when high-side FETs are short-circuited, the system detects minimum phase voltages and performs a similar comparison to identify faults. Another notable patent is a motor control device that halts the driving of an electric motor when a short-circuit fault is detected in one of the six FETs. This device identifies the position of the faulted FET based on phase voltages and categorizes the controllable region accordingly.

Career Highlights

Shigekazu Okumura is currently employed at Jtekt Corporation, where he continues to develop innovative technologies in vehicle control. His work has significantly impacted the automotive industry, particularly in enhancing the reliability of electric motor systems.

Collaborations

Okumura has collaborated with notable coworkers, including Fumihiko Satou and Hiroshi Sumasu. Their combined expertise has contributed to the advancement of vehicle control technologies.

Conclusion

Shigekazu Okumura's contributions to vehicle control technologies through his patents demonstrate his commitment to innovation and safety in the automotive industry. His work continues to influence the development of advanced vehicle systems.