Susumu Nishiwaki

Title: **Innovative Contributions of Susumu Nishiwaki**

Introduction

Susumu Nishiwaki, an accomplished inventor based in Yokohama, Japan, has made significant strides in the field of electrical engineering with his 12 patented innovations. His expertise has contributed to advancements in transformers and nonlinear resistors, showcasing his commitment to enhancing electrical systems.

Latest Patents

One of Nishiwaki's latest patents is the "Magnetizing Inrush Current Suppression Device and Method for Transformer." This innovation addresses the challenge of suppressing magnetizing inrush currents that occur when power is supplied to a three-phase transformer. The method employs three single-phase circuit breakers or a non-phase segregated circuit breaker, eliminating the need for additional resistors or equipment. By integrating phase and line-to-line voltages during steady-state operation, the method effectively calculates steady-state magnetic flux for each phase, enabling simultaneous closing of the circuit breakers in overlapping regions.

Another notable patent is the "Nonlinear Resistor and Method of Manufacturing the Same." This invention consists of a sintered body with zinc oxide as the primary component. The design includes a side-surface high-resistance layer and electrodes positioned on the upper and lower surfaces of the sintered body. The precise arrangement between the electrode and the nonlinear resistor's side-surface layer enhances its performance significantly.

Career Highlights

Throughout his career, Nishiwaki has worked for prominent companies, including Tokyo Shibaura Denki Kabushiki Kaisha (now known as Toshiba Corporation) and Kabushiki Kaisha Toshiba. His experience in these organizations has undoubtedly influenced his innovative approach and technical expertise in developing cutting-edge technologies.

Collaborations

Nishiwaki has collaborated with notable professionals in his field, including Satoru Yanabu and Toshikazu Satoh. These collaborations have likely fostered a creative environment where ideas could flourish and lead to impactful advancements in electrical engineering.

Conclusion

Susumu Nishiwaki's dedication to innovation and expertise in electrical engineering is evident through his numerous patents and career achievements. His work, particularly in magnetizing inrush current suppression and nonlinear resistors, is shaping the future of technology and improving the efficiency of electrical systems globally. His contributions not only highlight his inventiveness but also serve to inspire future generations of engineers and inventors.