Keiichi Matsunaga

Title: **Keiichi Matsunaga: Innovator in Crankshaft Production and Assembly Technologies**

Introduction

Keiichi Matsunaga, an accomplished inventor based in Anjo, Japan, has made significant contributions to the field of mechanical engineering, particularly in the production of crankshafts and assembly methods. With a total of four patents to his name, Matsunaga's innovative approaches enhance manufacturing efficiency and product durability.

Latest Patents

Among his latest inventions, Matsunaga has developed a unique crankshaft production method and production apparatus. This method involves pressurizing the end portions of a shaft blank with a specifically inclined die to apply an axial compressive load. The design restricts radial deformation in a designated zone, which allows for effective swaging of the shaft blank while causing the desired buckling in a controlled direction.

Additionally, Matsunaga has patented a method for manufacturing assembly members that ensures a strong fastening between two components. This technology employs a bar-shaped section formed on a first member, which is then pressure fitted into a hole in the second member. The innovative dimensions of these components enhance the strength of the joint, with specific geometric relations between the inscribed and circumscribed circles that ensure their effective integration.

Career Highlights

Keiichi Matsunaga has built a notable career working for respected companies in the automotive and manufacturing sectors. He has been associated with Toyota Motor Corporation, where he contributed to advancements in vehicle technology. Additionally, his work at Meg Inc. allowed him to explore innovative assembly solutions that address industry needs for durability and efficiency.

Collaborations

Throughout his career, Matsunaga has collaborated with prominent figures in the engineering sector, including Yu Hashimoto and Yoshihiko Ukai. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Keiichi Matsunaga's inventive spirit and dedication to advancing manufacturing technologies have left a significant mark on the engineering landscape. His ongoing pursuit of innovation continues to influence the industry, transforming how products are designed and produced. With each patent, Matsunaga solidifies his role as a key player in the realm of engineering and manufacturing innovation.