Masanari Umeda

Title: The Innovations of Masanari Umeda

Introduction

Masanari Umeda is a notable inventor based in Kasugai, Japan. He has made significant contributions to the field of electrophotographic equipment, holding a total of six patents. His work showcases a blend of creativity and technical expertise, particularly in the development of innovative rolls used in various applications.

Latest Patents

Umeda's latest patents include a development roll for electrophotographic equipment. This development roll features a shaft body with a rubber elastic layer molded on its outer circumference. The layer has numerous convex portions formed by transfer molding, enhancing its functionality. Additionally, a coating layer is applied, composed of a cured body of a coating material that includes thermoplastic urethane, polyol, and a curing agent, with specific mass percentages for optimal performance. Another significant patent is for an electrically conductive roll, which consists of a shaft body and a conductive elastic layer formed by extrusion. This layer is made from a conductive rubber composition that includes a rubber material, thermoplastic resin, and a conductive agent, ensuring effective electrical conductivity.

Career Highlights

Throughout his career, Umeda has worked with prominent companies such as Tokai Rubber Industries and Sumitomo Electric Industries. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Umeda has collaborated with notable coworkers, including Yukio Sakuraba and Fumihiro Ashiya. Their combined expertise has likely fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Masanari Umeda's contributions to the field of electrophotographic equipment through his patents and collaborations highlight his role as a significant inventor. His innovative designs and technical knowledge continue to influence the industry.