Tuyoshi Tokuda

Title: Tuyoshi Tokuda: Innovator in Color Filter Technology

Introduction

Tuyoshi Tokuda is a notable inventor based in Yachiyo, Japan. He has made significant contributions to the field of color filter technology, particularly in the production of multi-color display devices. His innovative approach addresses common defects in color filters, enhancing their quality and reliability.

Latest Patents

Tuyoshi Tokuda holds a patent for a method of preparing a color filter. The patent describes a process where color layers of a color filter are obtained by exposing a transparent substrate to light from the back side, followed by development. This method addresses the issue of layer unflatness caused by contamination with foreign matters. The defect can be repaired by eliminating the defective part of the color layers, producing a blank that can be filled with a negative photosensitive composition containing a black colorant. This innovative repair process allows the modified color filter to be returned to an appropriate step in the production line, ensuring that the final product maintains display qualities comparable to those fabricated using originally defect-free color filters.

Career Highlights

Tuyoshi Tokuda is associated with Sumitomo Chemical Company, Limited, where he applies his expertise in developing advanced materials for display technologies. His work has contributed to the company's reputation as a leader in chemical manufacturing and innovation.

Collaborations

Throughout his career, Tuyoshi has collaborated with esteemed colleagues such as Tsutomu Watanabe and Jun-Ichi Yasukawa. These collaborations have fostered a creative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Tuyoshi Tokuda's contributions to color filter technology exemplify the impact of innovative thinking in the field of display devices. His patented methods not only address existing challenges but also pave the way for future advancements in the industry.