Syuzou Iwaasa

Title: Syuzou Iwaasa and His Submerged Motor Stator Patent

Introduction

Syuzou Iwaasa is an inventor associated with Hitachi, Ltd. in Hitachi, Japan. His patent work includes an engineering design for a submerged motor stator that balances electrical efficiency with mechanical strength.

Latest Patents

The available information identifies one patent associated with Iwaasa: “Stator of Submerged Motor.” The invention uses high-precision cylinders made from carbon fiber reinforced plastics. It adds increased-thickness portions at opposite ends of the inner cylinder, near its joints with the end covers. One portion is on the outer surface, and the other is on the inner surface. This arrangement keeps the cylinder thinner at its center to reduce eddy current loss while strengthening its ends and facilitating reliable joints with the end covers. The record lists 1 patent.

Career Highlights

Iwaasa’s documented patent contribution addresses a practical challenge in submerged motor construction: joining composite cylinders to end covers without compromising performance. The design combines material selection and carefully positioned changes in wall thickness to support both electrical and mechanical requirements.

Collaborations

The provided information names Kenzo Kadotani and Yutaka Higashimura as Iwaasa’s coworkers. It does not specify their roles in developing or patenting the submerged motor stator.

Conclusion

Syuzou Iwaasa’s patent reflects an engineering approach that reduces eddy current loss while reinforcing the stator’s joints, contributing a focused innovation to submerged motor design.