Hikoji Ueda

Title: Hikoji Ueda: Innovator in Toner Technology

Introduction

Hikoji Ueda is a notable inventor based in Kitakatsushika-gun, Japan. He has made significant contributions to the field of polymer technology, particularly in the development of innovative toner resins. With a total of four patents to his name, Ueda's work has had a substantial impact on the efficiency and quality of toner production.

Latest Patents

Ueda's latest patents include a method for decreasing unreacted monomer in vinyl polymer and a negatively chargable toner for electrophotography. The method of decreasing unreacted monomer involves adding a water-soluble inorganic salt to an aqueous dispersion of vinyl polymer particles. This process effectively solubilizes and removes unreacted monomers, leading to a reduction in foul odors during toner production and improving toner characteristics. The negatively chargable toner comprises a binder, a coloring agent, and a charge control agent, which ensures stable toner properties even under high temperatures and humidities. This toner can produce high-quality images without issues such as scattering or fogging.

Career Highlights

Ueda is currently employed at Fujikura Kasei Co., Ltd., where he continues to innovate in the field of toner technology. His work has not only advanced the production processes but has also enhanced the performance of toner products in various applications.

Collaborations

Ueda has collaborated with notable colleagues, including Masao Watanabe and Kozo Suzuki, contributing to the advancement of their shared goals in polymer and toner technology.

Conclusion

Hikoji Ueda's contributions to the field of toner technology through his innovative patents have significantly improved the efficiency and quality of toner production. His work continues to influence the industry positively.