Kitakyushu, Japan

Toshinori Katayama

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Steel Corporation. Active years: 1988-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshinori Katayama. Retrieved from https://idiyas.com/inventor/toshinori-katayama

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.3

ph-index = 2

Forward Citations = 13(Granted Patents)


Location History:

  • Kitakyusyushi, JP (1988)
  • Kitakyushu, JP (1989)

Company Filing History:


Years Active: 1988-1989

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2 patents (USPTO):Explore Patents

Title: Innovations by Toshinori Katayama

Introduction

Toshinori Katayama is a notable inventor based in Kitakyusyushi, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced steel sheets. With a total of 2 patents, his work focuses on enhancing the properties of steel for various applications.

Latest Patents

One of his latest patents is for a chromate surface treated steel sheet. This innovation boasts excellent paintability, corrosion resistance, and workability. Specifically, it addresses the properties of surface treated steel sheets for paint coating, ensuring superior corrosion resistance after paint application, strong paint adhesion over time, and resistance to cracking during secondary work. The composition includes not more than 0.15% carbon, 0.005 to 0.10% acid soluble aluminum, and 0.5 to 20% chromium, with iron and unavoidable impurities as the balance. The chromate coating applied on the steel substrate features a metallic chromium layer and a hydrated chromium oxide layer, enhancing its durability.

Another significant patent involves a tinned steel sheet with high corrosion resistance. This coated steel sheet comprises steel containing not more than 0.1% carbon, 0.005 to 0.08% soluble aluminum, and 0.2 to 20% chromium. The steel is further enhanced with a nickel or nickel alloy layer and a layer of tin, providing exceptional protection against corrosion.

Career Highlights

Toshinori Katayama is currently associated with Nippon Steel Corporation, where he continues to innovate in the field of steel manufacturing. His work has been instrumental in advancing the quality and performance of steel products used in various industries.

Collaborations

Throughout his career, Katayama has collaborated with esteemed colleagues such as Seijun Higuchi and Fumio Yamamoto. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Toshinori Katayama's contributions to the field of materials science, particularly through his innovative patents, have significantly impacted the steel industry. His work exemplifies the importance of research and development in creating advanced materials that meet modern demands.

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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