Mitsuyoshi Kumada

Title: Mitsuyoshi Kumada: Innovator in Electrostatic Powder Coating Technology

Introduction

Mitsuyoshi Kumada is a notable inventor based in Yachiyo, Japan. He has made significant contributions to the field of electrostatic powder coating technology, holding a total of 2 patents. His innovative designs aim to enhance the efficiency and effectiveness of powder coating processes.

Latest Patents

Kumada's latest patents include an electrostatic powder coating device and a powder coating booth. The electrostatic powder coating device features a cover that forms a space for coating above an electroconductive belt conveyor. This design adjusts the electric field at the end portion of a flat plate-like object to be coated. It includes electrostatic powder coating guns aimed at the object, along with means for introducing and exhausting air in the coating space. This innovation ensures a uniform electric field across the entire surface, preventing waste of powder coating material and local cracks during bending.

The powder coating booth is designed to supply air through its ceiling, with sidewalls made from insulating material or semiconductor. A belt conveyor is positioned at the bottom, and an electric field extends from the paint gun to the conveyor belt. This setup allows for the majority of oversprayed powder paint to attach to the conveyor belt's upper surface, which is then carried outside the booth and recovered by a blowing-type static eliminator. This minimizes the amount of oversprayed powder paint mixed in the booth's exhaust.

Career Highlights

Kumada is currently employed at Onoda Cement Co., Ltd., where he continues to develop innovative solutions in the field of powder coating. His work has significantly impacted the efficiency of coating processes in various applications.

Collaborations

Kumada has collaborated with notable coworkers, including Nobuo Furuya and Hideo Nagasaka, contributing to advancements in their shared field of expertise.

Conclusion

Mitsuyoshi Kumada's contributions to electrostatic powder coating technology demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of the challenges in the coating process and provide effective solutions to enhance performance.