Tohru Nagasawa

Title: Tohru Nagasawa: Innovator in Brazing Technology

Introduction

Tohru Nagasawa is a notable inventor based in Kusatsu, Japan. He has made significant contributions to the field of brazing technology, particularly through his innovative methods that enhance the brazability of sheet materials.

Latest Patents

Nagasawa holds a patent for a "Method for brazing sheet material and heat exchanger." This method involves brazing a sheet material without the use of flux. An inert gas is introduced into an oxygen pump to reduce the oxygen partial pressure in the inert gas to 1×10 Pa or less. The sheet material is then heated in a brazing furnace in an atmosphere of the inert gas discharged from the oxygen pump. The core alloy of the sheet material or a brazing filler alloy cladded to a surface of the core alloy contains magnesium (Mg). Both the core alloy and the brazing filler alloy may contain Mg, which significantly improves the brazability of the sheet material.

Career Highlights

Throughout his career, Tohru Nagasawa has worked with prominent organizations such as Denso Corporation and Chiba Institute of Technology. His experience in these institutions has allowed him to refine his skills and contribute to advancements in brazing technology.

Collaborations

Nagasawa has collaborated with notable colleagues, including Shin Takewaka and Shogo Yamada. Their combined expertise has furthered the development of innovative solutions in their respective fields.

Conclusion

Tohru Nagasawa's contributions to brazing technology exemplify the impact of innovation in engineering. His patented methods and collaborations highlight the importance of continuous improvement in industrial processes.