Eiji Uenishi

Title: Eiji Uenishi: Innovator in Compact DC Motor Technology

Introduction

Eiji Uenishi is a notable inventor based in Yonago, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of compact DC motors. His innovative approach has led to advancements that enhance motor performance and efficiency.

Latest Patents

Uenishi holds a patent for a "Method of making a permanent magnet field-type compact DC motor." This invention focuses on creating a permanent magnet field-type compact DC motor that boasts high output and low cogging torque. The design involves fixing a pair of rare earth magnets, primarily composed of rare earth-iron-based rapidly quenched and solidified flakes, to a soft magnetic frame. These magnets are strategically positioned to extend along the inner peripheral surface of the frame. Additionally, the rare earth magnets are unsaturation-magnetized to ensure that the demagnetization curves at the circumferentially opposite end portions are smaller than those at the central portion of each magnetic pole.

Career Highlights

Eiji Uenishi is associated with Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work at this organization has allowed him to focus on innovative motor technologies that have practical applications in various electronic devices.

Collaborations

Uenishi has collaborated with notable coworkers, including Fumitoshi Yamashita and Shinji Toda. Their combined expertise has contributed to the successful development of advanced motor technologies.

Conclusion

Eiji Uenishi's contributions to the field of compact DC motors exemplify the impact of innovative thinking in engineering. His patent reflects a commitment to enhancing motor performance, which is crucial for the advancement of modern electronics.