Kiyoshi Wagatsuma

Title: Kiyoshi Wagatsuma: Innovator in Power Control Technology

Introduction

Kiyoshi Wagatsuma is a notable inventor from Tagajo, Japan, recognized for his contributions to power control technology. His innovative approach has led to the development of a unique power control apparatus that utilizes static induction thyristors.

Latest Patents

Wagatsuma holds a patent for a power control apparatus that features a pair of static induction thyristors. These thyristors are coupled in parallel in opposite bias directions between an AC power source and a load. The apparatus is designed to be turned on by a light signal and turned off by natural commutation, a light signal, or an electric signal. The turn-off light signal is generated within a phase angle of 90 degrees in the time axis around the zero-cross point of the AC voltage from the AC power source.

Career Highlights

Throughout his career, Kiyoshi Wagatsuma has worked with prominent companies, including Tohoku Electric Manufacturing Co., Ltd. and Zaidan Hojin Handotai Kenkyu Sinkokai. His work in these organizations has significantly contributed to advancements in electrical engineering and power control systems.

Collaborations

Wagatsuma has collaborated with esteemed colleagues such as Jun-ichi Nishizawa and Takashige Tamamushi. Their combined expertise has fostered innovation in the field of power electronics.

Conclusion

Kiyoshi Wagatsuma's contributions to power control technology exemplify the impact of innovative thinking in engineering. His patent and collaborations highlight the importance of teamwork in advancing technological solutions.