Toru Imokawa

Title: Toru Imokawa: Innovating Surface Treatment Technologies in Steel Manufacturing

Introduction

Toru Imokawa is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of surface treatment technologies, particularly in steel manufacturing. With 8 patents to his name, his work focuses on enhancing the properties of zinc and zinc alloy coated steel sheets, thereby improving their performance and durability.

Latest Patents

Imokawa's latest patents feature innovative solutions in surface treatment agents for zinc or zinc alloy coated steel sheets. One notable patent presents a chromium-free surface treatment agent that includes a resin compound with a specific bisphenol skeleton, a cationic urethane resin emulsion, a silane coupling agent, an organic titanium chelate compound, a quadrivalent vanadyl compound, a molybdic acid compound, and water. This formulation achieves a pH value between 4 and 5, resulting in a stable agent capable of forming a coating film that exhibits excellent corrosion resistance, solvent resistance, and enhanced paintability.

Another key invention is a chromium-free surface treatment liquid designed for zinc or zinc alloy coated steel sheets. This liquid also targets improving corrosion resistance at bent portions of steel sheets while ensuring compatibility with later processes like alkaline degreasing. The composition includes similar components to the aforementioned agent, adhering to specific ratios to maintain its effectiveness.

Career Highlights

Throughout his professional journey, Toru Imokawa has made impactful strides while working for well-respected companies such as NKK Corporation and JFE Steel Corporation. His role in these organizations has been instrumental in pushing forward advancements in steel surface treatment technologies.

Collaborations

Imokawa’s success is complemented by fruitful collaborations with notable colleagues, including Takayuki Urakawa and Michitaka Sakurai. Together, they have contributed to the research and development of innovative solutions, furthering the capabilities of steel coatings in various applications.

Conclusion

Toru Imokawa stands out as a significant figure in the field of surface treatment technologies, especially in the steel industry. His array of patents and commitment to innovation not only enhance product performance but also contribute to the advancement of manufacturing processes. As the industry continues to evolve, Imokawa's inventions promise to provide lasting benefits and improvements in material science.