Location History:
- Saitama, JP (1988)
- Tokyo, JP (1985 - 2020)
Company Filing History:
2 out of 77 
2 out of 15,863 
1 out of 52,722 
Years Active: 1985-2020
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.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.