Sadahiro Kumamoto

Title: The Innovative Contributions of Sadahiro Kumamoto

Introduction

Sadahiro Kumamoto is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of engineering, particularly in the design of submersible motor components. His innovative approach has led to the development of a unique patent that addresses critical challenges in motor functionality.

Latest Patents

Kumamoto holds a patent for a "Shaft seal device for submersible motor." This invention comprises a seal box located at the end part of the motor's case. It features a pair of lip-type shaft sealing members positioned between the inner surface of the seal box and the motor's rotary shaft. These sealing members are designed with inward-facing lips that create a spacing between them. The device also includes a lubricant stored in the interspace defined by the sealing members. Additionally, an auxiliary refuse remover is snugly inserted between the inner surface of the seal box and the rotary shaft, composed of a fitting and a soft material member. Another refuse remover is positioned adjacent to the auxiliary refuse remover, enhancing the device's efficiency.

Career Highlights

Sadahiro Kumamoto is associated with Mitsubishi Electric Corporation, where he has contributed to various engineering projects. His work has been instrumental in advancing the technology used in submersible motors, showcasing his expertise and innovative thinking.

Collaborations

Kumamoto has collaborated with notable colleagues, including Sakuei Yamamoto and Hiroshi Inao. Their teamwork has fostered an environment of creativity and innovation, leading to the successful development of new technologies.

Conclusion

Sadahiro Kumamoto's contributions to the field of engineering, particularly through his patent for a shaft seal device for submersible motors, highlight his innovative spirit and dedication to improving motor technology. His work continues to influence the industry and inspire future innovations.