Ryoji Nishihara

Title: Ryoji Nishihara: Innovator in Plasma Technology

Introduction

Ryoji Nishihara is a notable inventor based in Kitakyushu, Japan. He has made significant contributions to the field of plasma technology, particularly in the heating of molten steel. His innovative approach has led to advancements that enhance the efficiency and quality of steel production.

Latest Patents

Nishihara holds a patent for a plasma torch used for heating molten steel. This plasma torch features an outer cylinder and a double tube, with a bottom that is blocked annularly. The design includes a bottomed cylindrical anode electrode installed within the outer cylinder, maintaining a gap between the anode electrode and the inside of the double tube. Notably, the plasma torch avoids using pure copper for the anode electrode material, opting for a substance with a softening point exceeding 150°C. The invention ensures that the ratio of the electric conductivity of the anode electrode to that of the outer cylinder adheres to the formula: 0.2 ≤ D/N < 1.0. This innovative design prevents melting loss and wear of the anode electrode, suppresses side arc generation, extends the life of the torch, stabilizes casting operations, and improves the quality of the slab.

Career Highlights

Ryoji Nishihara is associated with Nippon Steel Corporation, where he has applied his expertise in plasma technology to enhance steel production processes. His work has been instrumental in developing solutions that address common challenges in the industry.

Collaborations

Nishihara has collaborated with notable colleagues, including Shinichi Fukunaga and Kazuhisa Tanaka. Their combined efforts have contributed to advancements in the field of plasma technology and steel production.

Conclusion

Ryoji Nishihara's contributions to plasma technology, particularly through his patented plasma torch, have significantly impacted the steel industry. His innovative designs and collaborative efforts continue to drive advancements in manufacturing processes.