Tomokichi Okawara

Title: Tomokichi Okawara: Innovator in Rotary Electric Machines

Introduction

Tomokichi Okawara is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of rotary electric machines, particularly through his innovative designs and patents. His work has had a lasting impact on the efficiency and functionality of electric machinery.

Latest Patents

One of Okawara's key patents is for a liquid cooled stator winding for a rotary electric machine. This invention features a stator bar composed of a plurality of hollow conductive elements, which is strategically disposed within a slot of a stator core. The design includes a liquid coolant header that is fixedly mounted on one end of the stator bar by heat welding. Notably, the stator bar is bent adjacent its end in a direction generally normal to its longitudinal direction, ensuring trouble-free operation over many years.

Career Highlights

Okawara has dedicated his career to advancing technology in electric machines. He is associated with Hitachi, Ltd., a leading company in the field of electrical equipment and machinery. His innovative approach has led to improvements in the performance and reliability of rotary electric machines.

Collaborations

Throughout his career, Okawara has collaborated with esteemed colleagues such as Masatosi Taniguchi and Seiji Watanabe. These partnerships have fostered a creative environment that has contributed to the development of groundbreaking technologies.

Conclusion

Tomokichi Okawara's contributions to the field of rotary electric machines exemplify the spirit of innovation. His patent for a liquid cooled stator winding showcases his commitment to enhancing machine performance and reliability. His work continues to influence the industry and inspire future advancements.