Tokyo, Japan

Yoshiyuki Ushigami

This inventor holds 76 USPTO granted patents and 8 published patent applications, plus 1 CIPO patent and 39 EPO patents, primarily in Electrical Steel (CPC class C22C). Top assignees: Nippon Steel Corporation, Nippon Steel Sumitomo Metal Corporation. Active years: 1991-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Ushigami. Retrieved from https://idiyas.com/inventor/yoshiyuki-ushigami

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

USPTO Granted Patents = 76 

% Patents Active = 100.0

 

 

Average Co-Inventor Count = 3.8

ph-index = 6

Forward Citations = 129(Granted Patents)

Forward Citations (Not Self Cited) = 100(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Fukuoka, JP (1993)
  • Kitayusyushi, JP (1995)
  • Kitakyusyushi, JP (1998)
  • Futtsu, JP (1996 - 2008)
  • Kitakyushu, JP (1991 - 2010)
  • Tokyo, JP (2010 - 2024)

Company Filing History:


Years Active: 1991-2026

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Areas of Expertise:
Grain-Oriented Steel
Electrical Steel Sheet
Manufacturing Method
Insulation Coating
Wound Core
Base Sheet
Non-Oriented Steel
Silicon Steel
76 patents (USPTO):Explore Patents

Certainly! Here is the article about inventor Yoshiyuki Ushigami:

Title: Inspiring Innovation: The Legacy of Yoshiyuki Ushigami

Introduction:

Yoshiyuki Ushigami, a visionary inventor based in Tokyo, JP, has left an indelible mark on the world of technology with his passion for innovation and relentless pursuit of excellence. With a remarkable 56 patents to his name, Ushigami's groundbreaking work continues to shape the future of numerous industries.

Latest Patents:

Among his latest patents is the 'Grain-oriented electrical steel sheet and method for manufacturing same.' This innovative steel sheet design features a unique composition including an intermediate layer rich in silicon oxide, enhancing its electrical properties. Ushigami's attention to detail is evident in the precise thickness control of the intermediate layer, ensuring optimal performance.

Career Highlights:

Having worked with renowned companies such as Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation, Ushigami has garnered extensive experience in the field of materials science and engineering. His expertise has led to the development of cutting-edge technologies that have revolutionized the way we perceive electrical steel products.

Collaborations:

Throughout his career, Ushigami has collaborated with esteemed colleagues such as Shuichi Nakamura and Hiroyasu Fujii. Together, they have shared their expertise, pushing the boundaries of traditional industry norms and setting new standards for innovation in the realm of electrical steel production.

Conclusion:

In conclusion, Yoshiyuki Ushigami's contributions to the world of technology are nothing short of remarkable. His insatiable curiosity, coupled with his dedication to excellence, serves as a guiding light for aspiring inventors around the globe. Ushigami's relentless pursuit of innovation continues to inspire and shape the future of technology, leaving a lasting legacy for generations to come.

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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