Shigehiro Tanaka

Title: Shigehiro Tanaka: Innovator in Polyurethane Resin Technology

Introduction

Shigehiro Tanaka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of polyurethane resin technology, holding a total of four patents. His work focuses on enhancing the properties of pigments used in various applications, particularly in ink formulations.

Latest Patents

Tanaka's latest patents include innovations such as a polyurethane resin addition pigment, a process for producing this pigment, a pigment dispersion composition, and a jet printing ink composition. These inventions are designed to provide pigments that exhibit excellent image density, dispersibility, storage stability, and resolubility. The polyurethane resin-bonded pigments he developed are capable of forming ink films that demonstrate marker resistance and rubfastness. The production process involves bringing a pigment with a surface acidic group into contact with a basic compound containing amino groups in an aqueous medium, resulting in a pigment with unreacted surface amino groups. This pigment is then bonded with a water-dispersible polyurethane resin through a urea bond, enhancing its performance in various applications.

Career Highlights

Shigehiro Tanaka is associated with Tokai Carbon Company, Ltd., where he has been instrumental in advancing the company's research and development efforts in polymer technology. His innovative approach has led to the creation of high-performance materials that are widely used in the industry.

Collaborations

Tanaka has collaborated with notable colleagues, including Yukari Ishibashi and Asami Takenaka. Their combined expertise has contributed to the successful development of advanced pigment technologies.

Conclusion

Shigehiro Tanaka's work in polyurethane resin technology exemplifies the impact of innovation in material science. His patents reflect a commitment to enhancing the performance of pigments, which are crucial in various applications.