Youhei Ohtake

Title: Youhei Ohtake: Innovator in Fastening Technology

Introduction

Youhei Ohtake is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of fastening technology, particularly with his innovative designs that enhance the functionality and efficiency of fastening tools.

Latest Patents

Ohtake holds a patent for an "Axial-force-detective fastening tool, bolt, and method of manufacturing bolt." This invention is designed to fasten a nut to a bolt while simultaneously detecting the axial force acting on the bolt. The tool features a socket body that is rotatably supported by a tool body and includes a nut receiver. The socket body rotates the nut around its axis to secure it to the bolt. An ultrasonic sensor, which is movable along the axis of the socket body, contacts the front end of the bolt in the nut receiver. This sensor emits and receives ultrasonic waves to accurately detect the axial force acting on the bolt. A sensor spring ensures that the ultrasonic sensor maintains contact with the bolt's front end. The bolt itself includes a reference surface that engages with the ultrasonic sensor and is recessed in a tapered opening at the bolt's end.

Career Highlights

Ohtake's career is marked by his dedication to advancing fastening technology. His innovative approach has led to the development of tools that not only improve fastening efficiency but also enhance safety by providing real-time feedback on the forces acting on the fasteners.

Collaborations

Throughout his career, Ohtake has collaborated with talented individuals such as Fumitaka Saigo and Hirofumi Hase. These collaborations have contributed to the refinement and success of his inventions.

Conclusion

Youhei Ohtake is a pioneering inventor whose work in fastening technology has made a significant impact. His patented inventions demonstrate a commitment to innovation and practicality in engineering.