This inventor holds 6 USPTO granted patents and 1 EPO patent. Top assignees: Nippon Paint Compnay, Ltd., Nippon Steel Corporation, Showa Aluminum Corporation. Active years: 2000-2006.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JP (2000 - 2002)
- Kawasaki, JP (2006)
Company Filing History:
5 out of 827 
2 out of 3,713 
1 out of 152 Years Active: 2000-2006
Title: Atsuhiko Tounaka: Innovator in Zinc-Plated Steel Technology
Introduction
Atsuhiko Tounaka is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of materials science, particularly in the development of innovative zinc-plated steel sheets. With a total of 6 patents to his name, Tounaka's work focuses on enhancing corrosion resistance and coating performance in steel products.
Latest Patents
Tounaka's latest patents include the development of an inorganic-organic composite-treated zinc-plated steel sheet. This invention provides a treated coating that does not contain any chromium, ensuring excellent corrosion resistance after degreasing, coating adhesion, and electrodeposition coating performance. The process involves forming a zinc phosphate coating on the zinc-plated steel sheet surface, followed by a post-treatment coating using a composition that includes thiocarbonyl group-containing compounds, sulfide group-containing compounds, guanidyl group-containing compounds, an organic resin, a crosslinking agent, and an inorganic corrosion inhibitor. Another patent focuses on a similar composite-treated zinc-plated steel sheet that avoids hazardous chromate while maintaining superior corrosion resistance after alkaline degreasing and coating adhesion.
Career Highlights
Throughout his career, Tounaka has worked with prominent companies such as Nippon Paint Company, Ltd. and Nippon Steel Corporation. His experience in these organizations has allowed him to refine his expertise in materials and coatings, contributing to his innovative patent portfolio.
Collaborations
Tounaka has collaborated with notable colleagues in his field, including Kiyotada Yasuhara and Yasuhiro Shibata. These partnerships have likely enriched his research and development efforts, leading to advancements in steel treatment technologies.
Conclusion
Atsuhiko Tounaka's contributions to the field of zinc-plated steel technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of materials science and a dedication to improving industrial applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile