Katsuaki Iwaosa

Title: Katsuaki Iwaosa: Innovator in Silver Halide Photographic Materials

Introduction

Katsuaki Iwaosa is a prominent inventor based in Nagaokakyo, Japan. He has made significant contributions to the field of photographic materials, particularly in the development of silver halide photographic light-sensitive materials. With a total of 11 patents to his name, Iwaosa's work has had a lasting impact on the industry.

Latest Patents

Iwaosa's latest patents include innovative advancements in silver halide photographic light-sensitive materials. One notable patent discloses a silver halide photographic light-sensitive material that features a silver halide emulsion layer optically sensitized with a sensitizing dye. This dye has a maximum spectral sensitivity in the region of at least 700 nm. The emulsion layer contains at least one compound represented by specific formulas, enhancing its effectiveness. Another patent focuses on silver halide photosensitive materials designed for use under room light. This material includes a spectrally unsensitized negative silver halide with an average grain size of 0.1 to 0.3 µm, containing at least 80 mol % of silver chloride, along with an organic desensitizer.

Career Highlights

Katsuaki Iwaosa is currently associated with Mitsubishi Paper Mills Limited, where he continues to innovate in the field of photographic materials. His work has been instrumental in advancing the technology used in photographic applications.

Collaborations

Iwaosa has collaborated with notable colleagues, including Minoru Ohashi and Susumu Baba, contributing to various projects and patents in the field.

Conclusion

Katsuaki Iwaosa's contributions to silver halide photographic materials have established him as a key figure in the industry. His innovative patents reflect his dedication to advancing photographic technology.