Katsutoshi Machida

Title: Innovations of Katsutoshi Machida

Introduction

Katsutoshi Machida is a notable inventor based in Hachioji, Japan. He has made significant contributions to the field of photography, particularly in the development of light-sensitive materials for X-ray photography. With a total of 2 patents, his work has advanced the capabilities of photographic technology.

Latest Patents

Machida's latest patents include a light-sensitive silver halide photographic material specifically designed for X-ray photography. This innovative material is characterized by a unique characteristic curve, where the gamma between optical densities of 0.50 and 1.50 ranges from 2.7 to 3.3, and the gamma between optical densities of 2.00 and 3.00 is between 1.5 and 2.5 when processed with a specific developer. Another significant patent is for a silver halide X-ray photosensitive material, which features a support bearing a silver halide emulsion layer. This layer consists of at least three types of silver halide emulsions, each with substantially different photographic characteristics. Among these emulsions, at least one is a monodisperse emulsion, while another is a polydisperse emulsion.

Career Highlights

Katsutoshi Machida is currently employed at Konishiroku Photo Industry Co., Ltd., where he continues to innovate in the field of photographic materials. His work has been instrumental in enhancing the quality and efficiency of X-ray photography.

Collaborations

Machida has collaborated with notable coworkers, including Chika Honda and Akio Suzuki. Their combined expertise has contributed to the advancement of photographic technologies.

Conclusion

Katsutoshi Machida's contributions to the field of photography, particularly through his patents, have significantly impacted the industry. His innovative work continues to pave the way for advancements in X-ray photographic materials.