Tokiharu Kondo

Title: Tokiharu Kondo: Innovator in Photographic Materials

Introduction

Tokiharu Kondo is a notable inventor based in Minami-ashigara, Japan. He has made significant contributions to the field of photographic materials, particularly through his innovative patent that enhances the quality and sensitivity of photographic images.

Latest Patents

Kondo holds a patent for a photographic material that contains fine silver halide particles. This invention focuses on a silver halide photographic material that boasts increased sensitivity and gradient while being free from fog formation during storage. The material comprises a support and an emulsion layer containing very fine silver halide grains, along with a nitrogen-containing heterocyclic organic compound that has a hydroxylamino group. Examples of such compounds include 2-hydroxylamino-4,6-di(ethylamino)-1,3,5-triazine and 2,4-di(hydroxylamino)-6-diethylamino-1,3,5-triazine. This innovative photographic material is particularly useful for recording fine images with superior sharpness, and the incorporation of the heterocyclic compound enhances sensitivity despite the fine grain size of the silver halide.

Career Highlights

Kondo is associated with Fuji Photo Film Company, Limited, where he has been able to apply his expertise in developing advanced photographic materials. His work has contributed to the company's reputation for high-quality imaging products.

Collaborations

Throughout his career, Kondo has collaborated with notable colleagues, including Tohru Sueyoshi and Yoshiyuki Nakazawa. These collaborations have likely enriched his research and development efforts in the field of photography.

Conclusion

Tokiharu Kondo's innovative work in photographic materials has led to advancements that enhance image quality and sensitivity. His contributions continue to impact the field of photography positively.