Megumu Onishi

Title: Megumu Onishi: Innovator in Miniature Motor Technology

Introduction

Megumu Onishi is a notable inventor based in Matsudo, Japan. He has made significant contributions to the field of miniature motor technology. His innovative designs have led to the development of a unique miniature motor that showcases his expertise and creativity.

Latest Patents

Onishi holds a patent for a miniature motor that features a two-pole stator and a rotor with three or more salient poles. Each pole has a core with flanges extending toward both sides, along with a winding. This design allows the rotor to simulate a two-pole construction by cutting off at least the tip of a flange on either side of the salient rotor pole cores. This innovation limits the spontaneous-stop angular positions of the rotor to two. Additionally, an insulating spacer is positioned between the commutator segments to ensure proper contact with the brushes at spontaneous-stop angular positions. This design prevents the motor from burning and restarting suddenly after a stop, as it incorporates a self-inactivating function that interrupts current supply while maintaining motor torque.

Career Highlights

Megumu Onishi is currently employed at Mabuchi Motor Co., Ltd., where he continues to develop and refine miniature motor technologies. His work has garnered attention for its practical applications and innovative approach to motor design.

Collaborations

Onishi has collaborated with notable colleagues, including Fumiyoshi Itou and Ikuo Matsushita. Their combined expertise has contributed to advancements in the field of miniature motors.

Conclusion

Megumu Onishi's contributions to miniature motor technology exemplify his innovative spirit and dedication to engineering. His patent for a unique miniature motor highlights his ability to solve complex problems in motor design. Onishi's work continues to influence the industry and inspire future innovations.