Hitoshi Sannomiya

Title: Hitoshi Sannomiya: Innovator in Ball Screw Technology

Introduction

Hitoshi Sannomiya is a notable inventor based in Gunma, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the development of ball screw technology. With a total of 5 patents to his name, Sannomiya's work has had a considerable impact on the industry.

Latest Patents

One of Sannomiya's latest patents is a rolling die for a ball screw. This innovative design features a cylindrical portion with a helical protrusion that forms a helical ball groove in the raw material of a screw shaft. Additionally, it includes a conical lead-in portion with multiple frustum-cone-shaped sections, where the contact angles increase sequentially. Another significant patent is for a ball screw that minimizes deterioration of operating characteristics and reduces wear, torque change, noise, and vibration during operation. This design incorporates a screw shaft with a helical thread groove and a nut that engages with the screw shaft through a series of balls and spacers, ensuring a smooth and efficient operation.

Career Highlights

Sannomiya is currently employed at NSK Corporation, a leading company in the field of motion and control technologies. His work at NSK has allowed him to further develop his innovative ideas and contribute to advancements in ball screw technology.

Collaborations

Throughout his career, Sannomiya has collaborated with talented individuals such as Toru Kanda and Daisuke Maruyama. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hitoshi Sannomiya is a distinguished inventor whose contributions to ball screw technology have made a lasting impact on the industry. His innovative patents and collaborations with other professionals highlight his commitment to advancing engineering solutions.