Toyokazu Yagii is a prominent inventor based in Hiroshima, Japan. He has made significant contributions to the field of chemical engineering, particularly in the preparation of isocyanate compounds. With a total of five patents to his name, Yagii's work has had a notable impact on the industry.

Latest Patents

Yagii's latest patents include a process for the preparation of isocyanate compounds. This innovative method involves reacting dimethyl carbonate with an aliphatic diamine in the presence of an alkali catalyst to produce a corresponding urethane compound. Within 48 hours after the completion of this preparation, the urethane compound is thermally decomposed under reduced pressure in a high-boiling-point solvent. Another significant patent focuses on the preparation of aliphatic diisocyanate compounds, utilizing a similar approach to achieve high yields.

Career Highlights

Toyokazu Yagii is currently associated with Daicel Chemical Industries, Ltd., where he continues to advance his research and development efforts. His work has been instrumental in enhancing the efficiency and effectiveness of chemical processes within the company.

Collaborations

Yagii has collaborated with notable colleagues, including Teruo Itokazu and Kiyokazu Murata. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Toyokazu Yagii's contributions to the field of chemical engineering through his patents and collaborations highlight his role as a key innovator. His work continues to influence the industry and pave the way for future advancements.

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