Sadao Yamakage

Title: Sadao Yamakage: Innovator in Lock Technology

Introduction

Sadao Yamakage is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of lock technology, particularly with his innovative designs that enhance security and usability.

Latest Patents

Yamakage holds a patent for a lock kit and key rotor housed in a rotor case. This lock device is designed to work with a flat key that has asymmetric opposite edges. The key rotor is configured to maintain equal distances from the central axis line of the key to the abutment points of the edges against the tumbler. This unique design allows for a non-reversible key to be used in a reversible manner when inserted into the keyhole. His patent showcases his ingenuity in creating practical solutions for everyday security needs.

Career Highlights

Throughout his career, Sadao Yamakage has worked with several companies, including Sankyo Kinzoku Co., Ltd. and Tomoe System Inc. His experience in these organizations has allowed him to refine his skills and contribute to various projects in the field of lock technology.

Collaborations

Yamakage has collaborated with Keiichi Araki, further enhancing his work and expanding his innovative ideas in the industry.

Conclusion

Sadao Yamakage is a distinguished inventor whose work in lock technology has made a lasting impact. His patent for a lock device exemplifies his commitment to innovation and security.