Tokyo, Japan

Hirokazu Sugiyama

This inventor holds 15 USPTO granted patents and 2 published patent applications and 2 EPO patents. Top assignees: Nippon Steel Sumitomo Metal Corporation, Sony Corporation, Nippon Steel Corporation. Active years: 2002-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirokazu Sugiyama. Retrieved from https://idiyas.com/inventor/hirokazu-sugiyama

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

USPTO Granted Patents = 15 

% Patents Active = 40.0

 

Average Co-Inventor Count = 2.1

ph-index = 2

Forward Citations = 21(Granted Patents)


Location History:

  • Sakai, JP (2002)
  • Kanagawa, JP (2012 - 2015)
  • Tokyo, JP (2008 - 2019)

Company Filing History:


Years Active: 2002-2019

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15 patents (USPTO):Explore Patents

Title: The Innovations of Hirokazu Sugiyama

Introduction

Hirokazu Sugiyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced steel products. With a total of 15 patents to his name, Sugiyama's work has had a substantial impact on the industry.

Latest Patents

One of Sugiyama's latest patents involves an H-section steel and a method of producing the same. This innovation features a predetermined chemical composition that includes a magnesium-containing oxide with a specific size and density. The design ensures that the steel has a high strength evaluation portion, with a fraction of bainite in the steel structure being 80% or more. Another notable patent also focuses on H-section steel, which incorporates titanium oxides and boasts impressive mechanical properties, including a yield strength of 450 MPa or more and a Charpy absorbed energy of 100 J or more.

Career Highlights

Throughout his career, Sugiyama has worked with notable companies such as Nippon Steel & Sumitomo Metal Corporation and Sony Corporation. His experience in these organizations has allowed him to refine his expertise in materials engineering and innovation.

Collaborations

Sugiyama has collaborated with several talented individuals in his field, including Masaki Mizoguchi and Kazutoshi Ichikawa. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Hirokazu Sugiyama's contributions to the field of materials science, particularly through his innovative patents, have established him as a key figure in the industry. His work continues to influence the development of advanced steel products, showcasing the importance of innovation in engineering.

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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