Shigeaki Terashita

Title: Shigeaki Terashita: Innovator in Rotary Electric Machines

Introduction

Shigeaki Terashita is a notable inventor based in Gumma, Japan. He has made significant contributions to the field of rotary electric machines, holding three patents to his name. His innovative designs focus on enhancing motor efficiency and reducing costs.

Latest Patents

One of Terashita's latest patents involves a rotary electric machine that features a stator with windings arranged around multiple main poles of a stator core. This machine incorporates a hybrid type rotor with a step angle of approximately 4.09 degrees. The unique design allows for a larger rotation angle of the rotor when excited by an input pulse signal, compared to typical motors with a step angle of about 1.8 degrees. This arrangement enables the rotor to achieve higher speeds, thereby increasing motor efficiency. As a result, the output of this motor can match that of conventional motors without requiring high precision in maintaining the air gap. The use of inexpensive metal bearings to support the rotor further ensures performance that meets or exceeds that of traditional motors, leading to significant cost reductions.

Career Highlights

Shigeaki Terashita is currently employed at Nidec Servo Corporation, where he continues to develop innovative solutions in the field of electric machinery. His work has been instrumental in advancing the technology used in rotary electric machines.

Collaborations

Terashita collaborates with Yoji Unoki, contributing to the development of cutting-edge technologies in their field.

Conclusion

Shigeaki Terashita's contributions to rotary electric machines exemplify innovation and efficiency in engineering. His patents reflect a commitment to improving motor performance while reducing costs, making a significant impact in the industry.