Tugumoto Usui is a notable inventor based in Hino, Japan. He has made significant contributions to the field of photography through his innovative patents. With a total of 6 patents to his name, Usui has focused on enhancing photographic materials and processes.

Latest Patents

Among his latest patents is a silver halide color photographic material containing a yellow coupler. This invention features a photographic acylacetanilide yellow coupler that includes a specific moiety designed to improve color quality. Another significant patent involves a process for forming dye images, which utilizes 2-equivalent α-pivaloyl acetanilide couplers to create yellow dye images in silver halide photographic materials.

Career Highlights

Usui is currently associated with Konishiroku Photo Industry Co., Ltd., a company known for its advancements in photographic technology. His work has played a crucial role in the development of new photographic materials that enhance image quality and processing efficiency.

Collaborations

Throughout his career, Tugumoto Usui has collaborated with esteemed colleagues such as Shui Sato and Takaya Endo. These partnerships have contributed to the innovative advancements in the field of photography.

Conclusion

Tugumoto Usui's contributions to photographic technology through his patents demonstrate his commitment to innovation. His work continues to influence the industry and improve the quality of photographic materials.

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