Kawasaki, Japan

Shuji Hashizume

This inventor holds 5 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Nkk Tubes, Nkk Corporation. Active years: 1992-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shuji Hashizume. Retrieved from https://idiyas.com/inventor/shuji-hashizume

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

Calculating rank
USPTO Granted Patents = 5 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.2

ph-index = 2

Forward Citations = 16(Granted Patents)


Location History:

  • Kanagawa, JP (2014)
  • Kawasaki, JP (1992 - 2017)

Company Filing History:


Years Active: 1992-2017

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5 patents (USPTO):Explore Patents

Title: Shuji Hashizume: A Pioneer in Corrosion-Resistant Steel Innovations

Introduction

Shuji Hashizume is a notable inventor based in Kawasaki, Japan, recognized for his significant contributions to the field of materials science, particularly in the development of corrosion-resistant steel. With a portfolio of five patents, his work focuses on creating robust materials that withstand extreme environments, thereby enhancing the durability and performance of industrial applications.

Latest Patents

Among Hashizume's latest patents is a groundbreaking innovation titled "Low C-high Cr 862 MPa-class steel tube having excellent corrosion resistance and a manufacturing method thereof." This invention is designed to address the challenges faced in corrosive environments, particularly where hydrogen sulfide is present in significant concentrations. The patented alloy steel tube, suitable for Oil Country Tubular Goods (OCTG), achieves a minimum yield strength of 862 MPa and includes precise compositions of carbon, chromium, nickel, molybdenum, and vanadium to ensure unmatched corrosion resistance.

Another notable patent is related to a "Martensitic stainless steel having excellent corrosion resistance." This invention enhances the performance of stainless steel in contexts with exposure to both wet carbon dioxide gas and wet hydrogen sulfide. It incorporates meticulous formulations for various elements while maintaining high weldability and manufacturability. The combination of materials ensures excellent resistance to strain age hardening, making it highly suitable for demanding applications.

Career Highlights

Hashizume has been associated with notable companies such as NKK Tubes and NKK Corporation, where he has notably influenced the development of advanced steel products. His expertise in the field of metallurgy has propelled innovation and ensured that the companies remain competitive in a rapidly evolving market.

Collaborations

Throughout his career, Shuji Hashizume has collaborated with esteemed professionals, including his coworkers Yusuke Minami and Yoshiichi Ishizawa. These partnerships have fostered a dynamic exchange of ideas, furthering research and the development of cutting-edge technologies in the realm of stainless steel and alloy production.

Conclusion

Shuji Hashizume's contributions to the field of corrosion-resistant materials have positioned him as a vital figure in industrial innovation. Through his patents and collaborations, he continues to push the boundaries of materials engineering, ensuring that industries facing harsh environments have access to reliable and high-performance solutions. His work not only enhances the durability of products but also marks significant advancements in the sphere of materials science.

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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