Kiyotoshi Yamashita

Title: Kiyotoshi Yamashita: Innovator in Photographic Materials

Introduction

Kiyotoshi Yamashita is a notable inventor based in Hino, Japan. He has made significant contributions to the field of photographic materials, holding a total of 5 patents. His work primarily focuses on silver halide light-sensitive materials, which have been essential in the development of photography.

Latest Patents

Yamashita's latest patents include innovative advancements in silver halide light-sensitive photographic emulsions. One of his patents describes a silver halide photographic light-sensitive material that features a support with a silver halide emulsion layer. This emulsion contains silver halide tabular grains with specific characteristics, such as an aspect ratio of less than 8 and accounting for at least 70% of the total grain projection area. Another patent focuses on a silver halide color photographic light-sensitive material that boasts improved developing stability, ensuring that the red density-green density balance remains consistent even under varying developing conditions.

Career Highlights

Throughout his career, Kiyotoshi Yamashita has worked with prominent companies in the photographic industry, including Konishiroku Photo Industry Co., Ltd. and Konica Corporation. His expertise in photographic materials has made him a valuable asset in these organizations, contributing to advancements in photographic technology.

Collaborations

Yamashita has collaborated with notable coworkers such as Fumio Hamada and Yoshitaka Yamada. Their combined efforts have led to significant innovations in the field of photography, enhancing the quality and reliability of photographic materials.

Conclusion

Kiyotoshi Yamashita's contributions to the field of photographic materials through his patents and collaborations have had a lasting impact on the industry. His innovative work continues to influence the development of photography today.