Naofumi Ezaki

Title: Naofumi Ezaki: A Pioneer in Oil-Based Ink Technologies

Introduction: Naofumi Ezaki is a notable inventor based in Ibaraki, Japan, with a remarkable portfolio of 12 patents. His innovations primarily focus on oil-based ink technologies, contributing significantly to the field of printing and ink formulation.

Latest Patents: Among Naofumi Ezaki's latest inventions are two notable patents. The first is an oil-based inkjet ink that consists of a pigment, a dispersant formed with an acidic resin, a low-molecular weight amine compound, a basic polymer, and a non-aqueous solvent. This formulation enhances the ink's quality and applicability in various printing technologies. The second patent presents an oil-based magnetic ink, characterized by low viscosity and improved storage stability. This ink comprises a magnetic pigment with ferrite, a specific pigment dispersant that possesses an acid value without a base value, another dispersant with both acid and base values, along with a non-aqueous solvent. Notably, one of the pigment dispersants he highlights is derived from hydroxystearic acid.

Career Highlights: Naofumi Ezaki has made significant contributions through his work at Riso Kagaku Corporation and the Tokyo University of Science Educational Foundation Administrative Organization. His expertise in ink technology has propelled advancements in printing processes and materials.

Collaborations: Throughout his career, Naofumi has collaborated with esteemed colleagues like Shinichiro Shimura and Yoshifumi Watanabe, which has further enriched his research and innovation capabilities.

Conclusion: With a strong commitment to advancing ink technologies, Naofumi Ezaki stands out as an influential inventor. His contributions not only reflect his inventive spirit but also pave the way for future innovations in the realm of oil-based ink applications.