Makoto Koshi

Title: Makoto Koshi: Innovator in Toner Technology

Introduction

Makoto Koshi is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of toner technology, holding a total of 6 patents. His work focuses on developing advanced toner binders and compositions that enhance the performance of electrostatic photographic processes.

Latest Patents

Koshi's latest patents include innovative formulations for toner binders. One notable patent describes a toner binder comprising a crosslinked polyester resin that utilizes specific percentages of trimellitic acid and an epi-bis type epoxy as crosslinking components. This binder is characterized by a number average molecular weight (Mn) of 2,000 to 4,000 and a weight average molecular weight to number average molecular weight ratio (Mw/Mn) of 10 to 25. The resulting toner composition demonstrates excellent fixability and minimal odor during flash fixing. Another patent details a toner binder that incorporates a polyester resin with an aliphatic hydrocarbon chain, which contains ethylene as a constituent element. This innovation aims to improve the performance of toner applications in electrophotographic methods.

Career Highlights

Throughout his career, Makoto Koshi has worked with notable companies such as Fujitsu Corporation and Nippon Carbide Industries Co., Inc. His experience in these organizations has allowed him to refine his expertise in toner technology and contribute to advancements in the field.

Collaborations

Koshi has collaborated with esteemed colleagues, including Yuzo Horikoshi and Hiroaki Naito. These partnerships have fostered innovation and the exchange of ideas within the industry.

Conclusion

Makoto Koshi's contributions to toner technology have established him as a key figure in the field. His innovative patents and collaborations continue to influence advancements in electrostatic photographic processes.