Kenichi Harashima

Title: Kenichi Harashima: Innovator in Silver Halide Technology

Introduction

Kenichi Harashima, a notable inventor based in Uozu, Japan, has made significant contributions to the field of photographic technology. His innovative methods have played a crucial role in enhancing the production of silver halide emulsion particles, which are essential for photographic films.

Latest Patents

Harashima holds a patent for a "Method and apparatus for forming silver halide emulsion particles and method for forming fine particles." This patented technology optimizes the mixing state in static mixing, allowing for the formation of silver halide emulsion particles with small sizes and excellent mono-dispersion characteristics. The method involves a meticulous process where an aqueous solution of haloid salt is introduced into a mixing chamber as a turbulent flow, which is then intersected at a right angle by an aqueous solution of silver nitrate. This precise mixing technique enables an instantaneous reaction between the two solutions, resulting in the efficient production of fine particles.

Career Highlights

Harashima is affiliated with Fuji Photo Film Company, Limited, where his expertise and innovative spirit have contributed to advancements in the company’s product offerings. His work demonstrates a strong commitment to improving photographic materials and processes.

Collaborations

Throughout his career, Harashima has collaborated with esteemed colleagues such as Yasunori Ichikawa and Katsuhisa Ohzeki. These partnerships have been instrumental in driving forward-thinking solutions in the fields of photography and chemical engineering.

Conclusion

Kenichi Harashima's contributions to the realm of silver halide emulsion particle production stand as a testament to his inventive prowess. His patented methods continue to influence the quality and efficiency of photographic technologies. As the industry evolves, the impact of his innovations is likely to be felt for years to come.