Kawasaki, Japan

Katsuji Yamaguchi

This inventor holds 3 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 2007-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuji Yamaguchi. Retrieved from https://idiyas.com/inventor/katsuji-yamaguchi

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


% Patents Active = 33.3

Average Co-Inventor Count = 2.4

ph-index = 2

Forward Citations = 8(Granted Patents)


Location History:

  • Kawasaki, JP (2007 - 2010)
  • Fujisawa, JP (2012)

Company Filing History:


Years Active: 2007-2012

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3 patents (USPTO):Explore Patents

Title: Katsuji Yamaguchi: Innovator in Optical Transmission Technologies

Introduction

Katsuji Yamaguchi is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical transmission technologies, holding a total of 3 patents. His work focuses on improving the efficiency and reliability of optical communication systems.

Latest Patents

Yamaguchi's latest patents include a "Transmission path monitoring method and device." This invention allows for the monitoring of optical signals in a main transmission path by branching the optical main signal to separate optical fibers. The method enables the extraction of monitoring signals to assess the quality of the desired optical fiber. Another notable patent is the "Method, apparatus, and system for evaluating faulty point in multi-stage optical amplifying and repeating transmission line." This innovative technique provides a new approach to identifying faults in optical submarine cables by analyzing changes in optical spectral characteristics.

Career Highlights

Katsuji Yamaguchi is currently employed at Fujitsu Corporation, where he continues to develop cutting-edge technologies in optical communications. His expertise has positioned him as a key figure in advancing the capabilities of optical transmission systems.

Collaborations

Yamaguchi has collaborated with notable colleagues, including Izumi Yokota and Kenichi Shinmura. Their combined efforts have contributed to the development of innovative solutions in the field.

Conclusion

Katsuji Yamaguchi's work in optical transmission technologies exemplifies the impact of innovation in enhancing communication systems. His patents reflect a commitment to improving the reliability and efficiency of optical networks.

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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