Masanori Sawahata

Title: **The Innovations of Masanori Sawahata: A Pioneer in Electric Systems**

Introduction

Masanori Sawahata, a distinguished inventor based in Tokyo, Japan, has made significant contributions to the field of electric systems, particularly in the automotive and industrial sectors. With a total of seven patents to his name, he has consistently demonstrated a commitment to improving efficiency and reliability through innovative designs and solutions.

Latest Patents

Among his latest innovations is an electric system for cooling a motor and inverter unit. The primary goal of this invention is to enhance the cooling capability of a bus bar using a simple system. This innovative electric system encompasses a motor unit, consisting of a stator and a rotor, which is cooled by a refrigerant. The system also includes an inverter unit responsible for supplying electric power to the winding of the stator, a wiring portion for transmitting electric power, and a pipe for supplying or discharging refrigerant. This design allows for efficient heat exchange between the wiring portion and the cooled oily medium.

Another remarkable patent is for a rotary electric machine and vehicle, aimed at providing a highly efficient and reliable rotary electric machine. This design features a stator with a plurality of coils wound around it and a rotor that rotates freely with a predetermined gap between the stator and rotor. A unique aspect of the invention involves connection portions in the stator's slots that enhance electrical conduction between coils, thereby ensuring higher efficiency. This machine also incorporates a thermally expandable sheet to apply pressure to the coil radially, further optimizing performance.

Career Highlights

Masanori Sawahata has worked with some of the leading companies in the field, such as Hitachi and Hitachi Industrial Products. These experiences have significantly shaped his innovative thinking and technical prowess, allowing him to contribute effectively to the advancement of electric systems.

Collaborations

Throughout his career, he has collaborated with other notable engineers and researchers, including Kazuo Nishihama and Takayuki Koyama. These collaborations have likely facilitated the exchange of ideas and fostered an environment conducive to innovation.

Conclusion

Masanori Sawahata stands out as a prominent figure in the realm of inventions related to electric systems. His latest patents showcase his dedication to enhancing efficiency and reliability. With a strong foundation in esteemed companies and fruitful collaborations, Sawahata continues to lead the way for future innovations in the industry.