Takatomo Fukumoto

Title: Takatomo Fukumoto: Innovator in Electrophotographic Technology

Introduction

Takatomo Fukumoto, an illustrious inventor based in Osaka, Japan, has made significant contributions to the field of electrophotographic technology. With a remarkable portfolio of four patents, Fukumoto’s innovations are paving the way for advancements in developing processes and toner production.

Latest Patents

Fukumoto's latest patents include a pioneering magnetic brush developing process and a method for producing electrophotographic toner. The magnetic brush developing process involves a two-component developer tailored for environments where a bias voltage of at least 250 V is employed. This innovative developer prevents the carrier dragging phenomenon by optimizing the particle size distribution of carrier particles. The specific criteria ensure that less than 8% of carrier particles are smaller than 250 mesh, with a weight average particle size diameter (D.sub.50) ranging from 80 to 120 μm, and a controlled difference between D.sub.25 and D.sub.75.

In his process for producing electrophotographic toner, Fukumoto details the efficient production method that utilizes a mixture of toner components, including a fixing resin and an electric charge controlling dye. By recycling fine powder generated during the pulverizing and classifying steps, this method maintains high electric charging characteristics even after prolonged use, achieving superior transfer efficiency, resolution, and gradation.

Career Highlights

Fukumoto is affiliated with Mita Industrial Co., Ltd., a company recognized for its innovative approaches in the industry. His work there has positioned him as a key player in the development of advanced electrophotographic technologies.

Collaborations

Throughout his career, Fukumoto has worked alongside notable colleagues such as Takashi Teshima and Kazuhiko Yamamura. Their collaboration has fostered a creative environment that cultivates groundbreaking innovations in the field.

Conclusion

In conclusion, Takatomo Fukumoto stands out as a significant inventor whose patents reflect his dedication to enhancing electrophotographic technology. His innovative approaches and collaborative efforts continue to influence the industry, positioning Mita Industrial Co., Ltd. as a leader in developing cutting-edge solutions.