Eizi Morimoto

Title: Eizi Morimoto: Innovator in Electrophotography Toner Technology

Introduction

Eizi Morimoto is a notable inventor based in Wakayama, Japan. He has made significant contributions to the field of electrophotography, particularly in the development of advanced toner technologies. With a total of four patents to his name, Morimoto's work has had a substantial impact on image quality and environmental stability in printing processes.

Latest Patents

Morimoto's latest patents include a process for producing a toner for electrophotography. This innovative toner contains a binder resin that features both a condensation polymerization-type resin for forming a matrix and an addition polymerization-type resin for creating a dispersed domain. The dispersed domain, with a cross-sectional diameter of not more than 2 micrometers, comprises an areal proportion of not less than 90% of the total cross-sectional area. This toner is designed to be stable and capable of maintaining a suitable tribo electric charge, ensuring high image quality even under severe environmental conditions. Additionally, it allows for fixing at low temperatures without the need for an offset inhibiting liquid.

Another significant patent involves a method for producing binder resin and toner for electrophotography. This method includes blending a starting material monomer mixture for two polymerization reaction types, along with a compound that can react with both starting material monomers and a tricarboxylic or higher polycarboxylic acid. The concurrent polymerization reactions occur in a single reaction vessel, resulting in a binder resin that exhibits excellent environmental stability, pulverizability, and transparency. This innovation further enhances the performance of toners and developers used in electrophotography.

Career Highlights

Eizi Morimoto is currently associated with Kao Corporation, a leading company in the field of consumer products and advanced materials. His work at Kao has allowed him to focus on developing innovative solutions that improve the quality and efficiency of electrophotographic processes.

Collaborations

Morimoto has collaborated with notable colleagues, including Kuniyasu Kawabe and Tetuhiro Semura. Their combined expertise has contributed to the advancement of toner technology and the development of high-performance materials.

Conclusion

Eizi Morimoto's contributions to the field of electrophotography through his innovative patents have significantly enhanced the quality and stability of printing technologies. His work continues to influence the industry, making him a key figure in