Tsutomu Yamada

Title: Tsutomu Yamada: Innovator in Screw Tightening Technology

Introduction

Tsutomu Yamada is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the area of screw tightening methods. His innovative approach has led to the development of a unique patent that enhances the efficiency and reliability of screw fastening.

Latest Patents

Yamada holds a patent for a method of tightening a screw member. This method involves calculating the difference between the tightening axial forces produced at the limits of elasticity, depending on the friction coefficients between the screw member and the threaded member. By determining a seating torque based on this difference, the screw member can be threaded until the tightening torque reaches the seating torque, followed by tightening the screw member by a predetermined angle. This innovative method improves the accuracy and effectiveness of screw fastening.

Career Highlights

Tsutomu Yamada is currently employed at Mazda Motor Corporation, where he applies his expertise in mechanical engineering. His work at Mazda has allowed him to contribute to the development of advanced automotive technologies. Yamada's dedication to innovation has made him a valuable asset to the company.

Collaborations

Yamada has collaborated with his coworker, Tatsumi Makimae, to further enhance the research and development of screw tightening technologies. Their teamwork has led to advancements that benefit the automotive industry.

Conclusion

Tsutomu Yamada's contributions to screw tightening technology exemplify the importance of innovation in engineering. His patent and work at Mazda Motor Corporation highlight his commitment to improving mechanical processes. Yamada's achievements serve as an inspiration for future inventors in the field.