Daisuke Tokunaga

Title: Daisuke Tokunaga: Innovator in Timepiece Technology

Introduction

Daisuke Tokunaga is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of timepiece technology, holding two patents that showcase his innovative spirit and technical expertise. His work primarily focuses on the integration of electroconductive materials and electromechanical systems in watches.

Latest Patents

One of Tokunaga's latest patents is a timepiece that features an exterior case with electroconductivity. This watch includes an operating member that is also electroconductive, allowing for user interaction through an opening in the case. The design incorporates an electrostatic motor, which consists of an electret substrate with electrically charged films, a counter substrate with opposing electrodes, and a rotary shaft that facilitates movement. This innovative approach ensures that the operating member and the exterior case maintain electrical continuity while avoiding interference with the electret surface.

Another notable patent is for an electromechanical transducer designed to be detachably attached to electronic devices. This transducer includes first and second plates, a rotor that rotates around a shaft, and a fixed substrate facing the rotor. It features a charged portion on the rotor and an opposing electrode on the fixed substrate. The transducer is equipped with an adjusting unit to enhance the sliding properties of the rotating shaft, along with a gear train that transmits motive power generated by the rotor or the device's orientation changes.

Career Highlights

Daisuke Tokunaga is currently employed at Citizen Watch Company, Ltd., a leading manufacturer in the watch industry. His work at Citizen has allowed him to explore advanced technologies in timekeeping and contribute to the company's reputation for innovation and quality.

Collaborations

Throughout his career, Tokunaga has collaborated with talented individuals such as Yasuo Kitajima and Kenji Shimoda. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies in the field of timepieces.

Conclusion

Daisuke Tokunaga is a remarkable inventor whose contributions to timepiece technology have made a significant impact in the industry. His innovative patents reflect his dedication to advancing the functionality and design of watches.