Sumio Furukawa

Title: The Innovations of Sumio Furukawa

Introduction

Sumio Furukawa is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of electric motors, holding a total of three patents. His work focuses on enhancing the efficiency and functionality of electric motor systems.

Latest Patents

One of Furukawa's latest patents is a geared electric motor designed for power window apparatuses. This motor features an armature shaft connected to an output shaft through a worm gear pair and two friction plates. The design prevents the armature shaft from rotating due to the frictional resistance generated between the friction plates and the armature shaft, even when the output shaft is subjected to rotational force. Another significant patent is for an electric motor that incorporates brushes with rear ends cut diagonally to form acute angles. This innovative design minimizes vibration and effectively prevents noise caused by the 'stick-slip' phenomenon, all while maintaining a straightforward structure.

Career Highlights

Furukawa's career is marked by his dedication to advancing electric motor technology. His patents reflect a deep understanding of mechanical engineering and a commitment to improving the user experience in various applications.

Collaborations

Throughout his career, Furukawa has collaborated with notable coworkers such as Fumio Nakajima and Takeo Furuya. These partnerships have likely contributed to the innovative designs and successful patents he has developed.

Conclusion

Sumio Furukawa's contributions to electric motor technology demonstrate his expertise and innovative spirit. His patents not only enhance the functionality of electric motors but also pave the way for future advancements in the field.