Toshihiko Sumida

Title: Toshihiko Sumida: Innovator in Catalysis and Carbon Management

Introduction

Toshihiko Sumida is a prominent inventor based in Yamaguchi, Japan. He has made significant contributions to the field of catalysis, particularly in processes that involve carbon management. With a total of 3 patents to his name, Sumida's work is recognized for its innovative approaches to chemical reactions.

Latest Patents

Sumida's latest patents include a catalyst for decarbonylation reactions and a process for the preparation of diaryl carbonate. The catalyst he developed is composed of an organic phosphorus compound that contains a trivalent or pentavalent phosphorus atom. This catalyst is effective in releasing carbon monoxide from compounds that contain a moiety of --CO--CO--O-- in their molecular structure. Additionally, his process for preparing diaryl carbonate achieves high yield and selectivity by heating a diaryl oxalate in the presence of an organic phosphorus compound, which also facilitates the release of carbon monoxide.

Career Highlights

Toshihiko Sumida is currently associated with Ube Industries, Inc., where he continues to advance his research and development efforts. His work has been instrumental in enhancing the efficiency of chemical processes, particularly those related to carbon management.

Collaborations

Throughout his career, Sumida has collaborated with notable colleagues, including Katsumasa Harada and Yoichi Imbe. These collaborations have further enriched his research and contributed to the success of his innovative projects.

Conclusion

Toshihiko Sumida stands out as a key figure in the field of catalysis, with a focus on sustainable chemical processes. His contributions are paving the way for advancements in carbon management and chemical efficiency.