Hisato Tokunaga

Title: **Hisato Tokunaga: Innovator in Machine Tool Technology**

Introduction

Hisato Tokunaga is a notable inventor based in Tokyo, Japan, recognized for his contributions to the field of machine tool technology. With a single patent to his name, Tokunaga has demonstrated a significant commitment to innovation in manufacturing processes.

Latest Patents

His sole patent is a sophisticated machine tool design that includes a cutting tool holder unit. This unit features a cutting tool holder designed to securely and detachably mount a cutting tool. A distinct aspect of Tokunaga's invention is the front cover shaped like a flange, which is slidably fitted into the side of the cutting tool holder mounted on a multi-spindle head. The invention cleverly integrates a groove on the inner circumferential surface of the front cover, allowing it to fit into a corresponding groove on the cutting tool holder. This design forms an efficient cutting oil circulating channel, with a cutting oil injection port strategically located upstream relative to the cutting tool's rotation.

Career Highlights

Hisato Tokunaga has been a valuable member of Honda Motor Co., Ltd., contributing to various projects and innovations within the company. His dedication to enhancing manufacturing efficiency through inventive designs is well recognized in the industry.

Collaborations

During his career, Tokunaga has collaborated with notable colleagues such as Kunichi Kobatake and Kiyoshi Shimogai. Together, they have worked on several initiatives that leverage their expertise to improve machine tools and manufacturing processes.

Conclusion

Hisato Tokunaga exemplifies the spirit of innovation through his patent for a cutting tool holder unit. His commitment to advancing machine tool technology highlights the importance of creativity in the engineering field, making him a significant figure within the innovative community at Honda Motor Co., Ltd.