Toshiaki Kishimoto

Title: The Innovations of Toshiaki Kishimoto: Pioneer of Color Pigments

Introduction

Toshiaki Kishimoto is an esteemed inventor based in Osaka, Japan. With a total of four patents to his name, Kishimoto has made significant contributions to the field of chemical engineering, particularly in the production of advanced pigments.

Latest Patents

Kishimoto's latest patents focus on the innovative processing of 4,4'-Diamino-1,1'-dianthraquinonyl pigments. He developed a method for producing these pigments which are characterized by their fine particle size, making them easy to agglomerate. The process involves heating an aqueous suspension containing the 4,4'-diamino-1,1'-dianthraquinonyl compound, and either using mineral acids or alkalis. The resultant pigments find applications in paints, printing inks, and the coloring of plastics. Additionally, Kishimoto has patented a process for purifying crude 4,4'-diamino-1,1'-dianthraquinonyl-3,3'-disulfonic acids or salts. This purification method utilizes salting-out techniques with inorganic salts, producing high yields of pigments with excellent properties.

Career Highlights

Toshiaki Kishimoto's work is primarily affiliated with Sumitomo Chemical Company, Limited, where he has engaged in pioneering projects in pigment production. His innovations have not only advanced scientific knowledge but have also significantly impacted various industrial applications.

Collaborations

Throughout his career, Kishimoto has collaborated with talented colleagues such as Iwao Sakaguchi and Hiroki Inoue. Their teamwork has fostered an environment of innovation and creativity, leading to groundbreaking advancements in their field.

Conclusion

Toshiaki Kishimoto is a prominent figure in the world of pigment technology, with a keen focus on creating efficient production processes. His contributions, recognized through his patents, continue to influence the chemical engineering landscape, marking him as a key innovator in his industry.