Tetsuya Yasuda

Title: **Innovations of Tetsuya Yasuda in Liquid Crystal Display Technology**

Introduction

Tetsuya Yasuda is a notable inventor based in Tokyo, Japan, recognized for his contributions to the field of liquid crystal display (LCD) technology. With a total of three patents to his name, his innovations have significantly advanced the functionality and design of electronic timepieces.

Latest Patents

One of Yasuda’s remarkable patents is the **Liquid Crystal Display Wrist Watch**. This invention features a supporting frame secured to a wristwatch substrate, designed to optimally position exterior electrodes of the liquid crystal cell and segment electrodes of an electronic circuit. The design employs a holding frame plate that effectively urges the liquid crystal against the supporting frame, ensuring clarity and stability. Additionally, the watch includes a boundary plate and a color filter, which are strategically placed between the movement and the protective glass cover.

Another notable patent by Yasuda is the **Electronic Timepiece with Electro-Optical Display**. This invention involves a disk-shaped substrate that supports a liquid crystal cell, which is flanked by upper and lower glass plates. The rear side of the substrate accommodates an electric battery alongside various circuit elements. This design allows for selective energization of the electrode leads, resulting in the generation of distinct digital symbols. Furthermore, the incorporation of a crystal oscillator within the control circuit enhances the timekeeping accuracy of the electronic timepiece.

Career Highlights

Tetsuya Yasuda has developed a strong reputation in the innovation community through his engineering expertise and pioneering inventions in the LCD sector. His work has not only influenced consumer electronics but has also positioned Citizen Watch Company, Ltd. as a leader in modern wristwatch technology. His significant contributions to the field are reflected in the patents that continue to inspire advancements in similar technologies.

Collaborations

During his career at Citizen Watch Company, Ltd., Yasuda has had the opportunity to collaborate with esteemed colleagues, including Yoshio Iinuma and Yuzo Maekawa. Their combined expertise has fostered an innovative environment, leading to the successful development of cutting-edge timepieces that incorporate advanced display technologies.

Conclusion

In summary, Tetsuya Yasuda is a distinguished inventor whose patents in liquid crystal display technology have made a lasting impact on the electronic timepiece industry. His ongoing collaboration with talented professionals underscores the dynamic nature of innovation within the field. As technology continues to evolve, Yasuda's contributions remain a vital part of the narrative in LCD advancements.