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

Latest Patents

Among his latest patents is a silver halide photographic element with a hydrophobic undercoat polymer. This invention comprises a support that has an undercoat polymer layer, a dye layer with hydrophilic colloid, and a silver halide emulsion layer. The hydrophilic colloid in the dye layer is present at a coating weight of not more than about 0.5 g/m², and the dye layer is dried at temperatures ranging from about 80°C to about 160°C. Another significant patent is for a silver halide photographic material containing a color reversible dye layer. This material includes a support with an undercoat layer and at least one silver halide emulsion layer. The dye in the hydrophilic colloid layer absorbs light in the light-sensitive region and is decolorized during development.

Career Highlights

Koichi Suematsu is currently employed at Fuji Photo Film Company, Limited, where he continues to innovate in the field of photographic technology. His work has been instrumental in advancing the quality and functionality of photographic materials.

Collaborations

Suematsu has collaborated with notable coworkers such as Sumito Yamada and Shigeru Ohno. Their combined expertise has contributed to the development of groundbreaking photographic technologies.

Conclusion

Koichi Suematsu's contributions to the field of photography through his patents reflect his dedication to innovation. His work continues to influence the industry and enhance photographic materials.

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