Kawasaki, Japan

Daijiro Koyanagi

This inventor holds 1 USPTO granted patent. Top assignee: Nkk Corporation. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Daijiro Koyanagi. Retrieved from https://idiyas.com/inventor/daijiro-koyanagi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Daijiro Koyanagi: Innovator in Blister-Resistant Steel Technology

Introduction

Daijiro Koyanagi is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of materials science, particularly in the development of blister-resistant steel sheets. His innovative work has led to advancements in the manufacturing processes of steel, enhancing its durability and performance.

Latest Patents

Koyanagi holds a patent for a blister-resistant steel sheet and the method for producing it. The patent describes a steel sheet that consists essentially of 0.0005 to 0.003 wt. % C, 0.10 to 2.2 wt. % Mn, and various other components, with the balance being iron and inevitable impurities. The method for producing this steel sheet involves preparing a cold-rolled steel sheet with the specified composition and subjecting it to continuous annealing or hot dip galvanizing.

Career Highlights

Koyanagi is associated with NKK Corporation, where he has been instrumental in advancing steel technology. His work has not only contributed to the company's reputation but has also set new standards in the industry for producing high-quality steel products.

Collaborations

Koyanagi has collaborated with notable coworkers such as Seishi Tsuyama and Yoshihiro Hosoya. Their combined expertise has fostered an environment of innovation and excellence within their projects.

Conclusion

Daijiro Koyanagi's contributions to the field of steel technology exemplify the impact of innovative thinking in material science. His patent for blister-resistant steel sheets showcases his commitment to enhancing industrial processes and product quality.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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