This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignees: Fukuoka Prefectural Government, Kurashiki Boseki Kabushiki Kaisha. Active years: 2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 8 
1 out of 113 
Years Active: 2009
Title: Kiyoshi Donowaki: Innovator in Coloring Methods
Introduction
Kiyoshi Donowaki is a notable inventor based in Chikushino, Japan. He has made significant contributions to the field of material science, particularly in the development of innovative coloring methods for tangible materials.
Latest Patents
Donowaki holds a patent for a unique coloring method of tangible matter that has a polyamide bond. This method involves treating the material with an aqueous solution containing an aromatic derivative with one or more hydroxyl groups and a metal salt at a temperature of 40°C or more. The result is a polyamide tangible matter that is effectively colored by this method. He has 1 patent to his name.
Career Highlights
Throughout his career, Kiyoshi Donowaki has worked with several prominent organizations. He has been associated with Kurashiki Boseki Co., Ltd. and the Fukuoka Prefectural Government. His work in these institutions has allowed him to apply his innovative ideas in practical settings.
Collaborations
Donowaki has collaborated with notable individuals in his field, including Masahiro Nakazaki and Kunihiro Ohshima. These collaborations have contributed to the advancement of his research and the successful implementation of his inventions.
Conclusion
Kiyoshi Donowaki is a distinguished inventor whose work in coloring methods for polyamide materials has made a significant impact. His innovative approach and collaborations highlight his contributions to material science.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile