Hirofumi Fujii

Title: Hirofumi Fujii: Innovator in Electric Machine Control

Introduction

Hirofumi Fujii is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electric machine control, holding a total of 5 patents. His work focuses on enhancing the efficiency and functionality of rotary electric machines.

Latest Patents

Fujii's latest patents include a "Rotating-electric-machine control apparatus" and a "Method of controlling rotary electric machine." The rotating-electric-machine control apparatus features multiple torque compensation amount maps that store torque compensation amounts based on detection rotation speed and torque commands. It also includes a selector that chooses the appropriate map based on control information. The method of controlling a rotary electric machine involves supplying an electric control amount to a power conversion unit, which converts DC voltage into drive current. This method utilizes a conversion map to calculate the electric control amount based on the rotation speed and required command value.

Career Highlights

Throughout his career, Hirofumi Fujii has worked with prominent companies such as Nittan Company Limited and Mitsubishi Electric Corporation. His experience in these organizations has allowed him to develop innovative solutions in electric machine technology.

Collaborations

Fujii has collaborated with notable coworkers, including Tetsuo Kimura and Daiki Matsuura. Their combined expertise has contributed to advancements in the field of electric machine control.

Conclusion

Hirofumi Fujii's contributions to electric machine control through his patents and collaborations highlight his role as an influential inventor in the industry. His work continues to impact the efficiency of rotary electric machines.