Makio Gunji

Title: The Innovations of Makio Gunji

Introduction

Makio Gunji is a notable inventor based in Isehara, Japan. He has made significant contributions to the field of materials engineering, particularly in the development of electric resistance welded steel pipes and tubes. With a total of 4 patents to his name, Gunji's work has had a considerable impact on the industry.

Latest Patents

Gunji's latest patents focus on electric resistance welded steel pipes or tubes. One of his inventions describes a steel pipe that includes a base metal made from a steel sheet with a specific chemical composition. This pipe features an electric resistance weld portion with a bond width ranging from 40×10m to 120×10m. The invention also specifies that the carbon content difference (C-C) must be 0.05 mass % or less. Additionally, the total decarburized layer depth in both the inner and outer surface layers of the pipe is limited to 50×10m or less. Another patent emphasizes the excellent fatigue durability of the steel pipe after a rapid and short-time heating quenching treatment, further enhancing its performance.

Career Highlights

Throughout his career, Makio Gunji has worked with prominent companies in the industry. He has been associated with JFE Steel Corporation and JFE Welded Pipe Manufacturing Co., Ltd. His experience in these organizations has allowed him to refine his expertise in steel manufacturing and welding technologies.

Collaborations

Gunji has collaborated with several talented individuals in his field, including Yoshikazu Kawabata and Manabu Nishino. These collaborations have contributed to the advancement of innovative solutions in steel pipe technology.

Conclusion

Makio Gunji's contributions to the field of electric resistance welded steel pipes and tubes demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of materials engineering and a dedication to improving industrial processes.