Kakogawa, Japan

Atsuhiro Shiraki

This inventor holds 4 USPTO granted patents and 2 published patent applications. Top assignee: Kobe Steel, Ltd.. Active years: 2013-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Atsuhiro Shiraki. Retrieved from https://idiyas.com/inventor/atsuhiro-shiraki

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

USPTO Granted Patents = 4 

% Patents Active = 75.0

Average Co-Inventor Count = 3.7

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Kakogawa, JP (2013 - 2018)
  • Hyogo, JP (2020)

Company Filing History:


Years Active: 2013-2025

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4 patents (USPTO):Explore Patents

Title: Atsuhiro Shiraki: Innovator in High-Strength Steel Technology

Introduction

Atsuhiro Shiraki is a prominent inventor based in Kakogawa, Japan. He has made significant contributions to the field of materials science, particularly in the development of high-strength steel sheets. With a total of 4 patents to his name, his work has had a substantial impact on the industry.

Latest Patents

Shiraki's latest patents include innovative advancements in high-strength steel technology. One of his notable inventions is a high-strength steel sheet that boasts excellent delayed fracture resistance. This steel sheet has a tensile strength of 1700 MPa or greater and features a martensite structure that accounts for 95% or more of the entire metallographic structure. Additionally, it contains a transition metal carbide that comprises 0.8% or more of the entire metallographic structure.

Another significant patent is for an ultra-high-strength steel sheet that also exhibits excellent delayed fracture resistance at its cut end. This steel sheet is characterized by a specific component composition, including defined amounts of carbon, manganese, and aluminum, with iron and unavoidable impurities making up the remainder. The ultra-high-strength steel sheet has a tensile strength of 1470 MPa or more and includes a region with a structure that consists of 90% or more martensite.

Career Highlights

Atsuhiro Shiraki is currently employed at Kobe Steel, Ltd., where he continues to innovate and develop advanced materials. His work has positioned him as a key figure in the field of metallurgy, particularly in the production of high-performance steel products.

Collaborations

Shiraki has collaborated with notable coworkers, including Yukihiro Utsumi and Kosuke Shibata. Their combined expertise has contributed to the successful development of cutting-edge steel technologies.

Conclusion

Atsuhiro Shiraki's contributions to high-strength steel technology exemplify his dedication to innovation in materials science. His patents reflect a commitment to enhancing the performance and safety of steel products in various applications.

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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