Ikuo Ioka

Title: Ikuo Ioka: Innovator in Welding Materials and Corrosion Resistance

Introduction

Ikuo Ioka is a notable inventor based in Naka-gun, Japan. He has made significant contributions to the field of welding materials and corrosion resistance, holding a total of 3 patents. His work focuses on developing innovative materials that enhance performance in challenging environments.

Latest Patents

Ioka's latest patents include an austenitic welding material and preventive maintenance methods for stress corrosion cracking and intergranular corrosion. The austenitic welding material is characterized by its specific composition, which includes C: 0.01 wt % or less, Si: 0.5 wt % or less, Mn: 0.5 wt % or less, P: 0.005 wt % or less, S: 0.005 wt % or less, Ni: 15 to 40 wt %, Cr: 20 to 30 wt %, N: 0.01 wt % or less, O: 0.01 wt % or less, and the balance of Fe and inevitable impurities. Notably, the content of B as an inevitable impurity is limited to 3 wt ppm or less, ensuring high quality and performance.

Additionally, he has developed a Si-SiC material and a SiC fiber-reinforced Si-SiC composite material, both of which exhibit a concentration gradient of Si. These materials demonstrate improved corrosion resistance, strength, and the ability to heal defects in highly oxidative and corrosive environments.

Career Highlights

Ioka has worked with prominent organizations such as NGK Insulators, Inc. and the Japan Atomic Energy Agency. His experience in these institutions has allowed him to refine his expertise in materials science and engineering.

Collaborations

Ioka has collaborated with notable colleagues, including Shigeru Hanzawa and Masatoshi Futakawa. These partnerships have contributed to the advancement of his research and innovations in the field.

Conclusion

Ikuo Ioka's contributions to welding materials and corrosion resistance highlight his role as an influential inventor. His innovative patents and collaborations reflect his commitment to advancing technology in challenging environments.