Toshiaki Kozaki

Title: Toshiaki Kozaki: Innovator in Carboxypolysaccharide Production

Introduction

Toshiaki Kozaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of polysaccharide chemistry, particularly in the production and purification of carboxypolysaccharides. With a total of 3 patents to his name, Kozaki's work is recognized for its innovative approaches and practical applications.

Latest Patents

Kozaki's latest patents include a process for preparing carboxypolysaccharide and a process for producing carboxypolysaccharide. The first patent discloses a method for preparing carboxypolysaccharide by oxidizing a polysaccharide using a combination of a transition metal compound and an oxidizing agent. This process involves separating the transition metal from the reaction mixture with a chelating agent, allowing for the removal of the metal to a low concentration of less than 100 ppm. This innovation is crucial for reducing the loss of transition metal catalysts, such as ruthenium, and for the industrial manufacture of purified tricarboxypolysaccharide.

The second patent focuses on the production of carboxypolysaccharide by oxidizing a polysaccharide in the presence of a ruthenium compound and an oxidizing agent. This method allows for the efficient recovery of the expensive ruthenium catalyst, which can be converted to a high oxidation state and extracted using a water-insoluble organic solvent. The recovered ruthenium can then be reduced to a low oxidation state and reused in subsequent production processes.

Career Highlights

Kozaki is currently employed at Mitsubishi Gas Chemical Company, Inc., where he continues to advance his research in polysaccharide chemistry. His work has not only contributed to the scientific community but has also had practical implications in various industrial applications.

Collaborations

Throughout his career, Kozaki has collaborated with notable colleagues, including Hisashi Sakaitani and Hidechika Wakabayashi. These collaborations have further enriched his research and have led to significant advancements in the field.

Conclusion

Toshiaki Kozaki is a distinguished inventor whose innovative processes for carboxypolysaccharide production have made a lasting impact in the field of polysaccharide chemistry. His contributions continue to influence both academic research