Amagasaki, Japan

Shigeru Yamaji

This inventor holds 2 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1980-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Yamaji. Retrieved from https://idiyas.com/inventor/shigeru-yamaji

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 2

Forward Citations = 8(Granted Patents)


Location History:

  • Amagasaki, JP (1980)
  • Hyogo, JP (1984)

Company Filing History:


Years Active: 1980-1984

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2 patents (USPTO):Explore Patents

Title: Shigeru Yamaji: Innovator in Electrical Engineering

Introduction

Shigeru Yamaji is a notable inventor based in Amagasaki, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of advanced circuit protection devices. With a total of 2 patents, his work reflects a commitment to innovation and safety in electrical systems.

Latest Patents

Yamaji's latest patents include a gas circuit breaker and an enclosed lightning arrester. The gas circuit breaker is designed to enhance arc-extinguishing effectiveness by incorporating flow stabilizing and heat absorbing projections within a pressurized chamber adjacent to the arc generating structure. The enclosed lightning arrester features a grounded metal enclosure filled with SF.sub.6 and includes six nonlinear resistors made of sintered ZnO, which are serially interconnected. This design ensures effective protection against lightning strikes by utilizing a cylindrical high voltage conductor and strategically placed shield discs.

Career Highlights

Yamaji is currently employed at Mitsubishi Electric Corporation, where he continues to innovate and develop cutting-edge electrical devices. His work has been instrumental in advancing the safety and reliability of electrical systems, making a lasting impact in the industry.

Collaborations

Yamaji collaborates with fellow inventor Yoshikazu Shibuya, contributing to the development of innovative technologies in their field.

Conclusion

Shigeru Yamaji's contributions to electrical engineering through his patents and work at Mitsubishi Electric Corporation highlight his role as a key innovator in the industry. His inventions continue to enhance the safety and efficiency of electrical systems.

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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