Daisuke Hirasawa

Title: Daisuke Hirasawa: Innovator in Fluid Contact Technology

Introduction

Daisuke Hirasawa is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of fluid contact technology, holding a total of 2 patents. His work focuses on improving the reliability and efficiency of fluid contact members and water injection devices.

Latest Patents

Hirasawa's latest patents include a fluid contact member and a water injection device. The fluid contact member is designed to enhance corrosion resistance compared to existing technologies. It features a cobalt-based alloy phase with a dendrite structure and a compound phase containing chromium carbide. The average interval between adjacent secondary arms in the dendrite is maintained at 5 μm or less, ideally 3 μm or less, to optimize performance. The water injection device is engineered to inject water into a reactor containment vessel reliably. It operates without external power during emergencies, ensuring quick and effective cooling.

Career Highlights

Throughout his career, Hirasawa has worked with prominent companies such as Hitachi GE Nuclear Energy, Ltd. and Okano Valve Manufacturing Co., Ltd. His experience in these organizations has allowed him to develop innovative solutions that address critical challenges in fluid dynamics and reactor safety.

Collaborations

Hirasawa has collaborated with esteemed colleagues, including Yoshihisa Kiyotoki and Hirotsugu Kawanaka. These partnerships have fostered a creative environment that has led to the advancement of technology in their respective fields.

Conclusion

Daisuke Hirasawa's contributions to fluid contact technology and reactor safety demonstrate his commitment to innovation. His patents reflect a deep understanding of material science and engineering principles, making him a valuable figure in the industry.