Tokyo, Japan

Masahisa Yamaguchi, Deceased

This inventor holds 1 USPTO granted patent. Top assignee: Kokusai Denshin Denwa Kabushiki Kaisha. Active years: 1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahisa Yamaguchi, Deceased. Retrieved from https://idiyas.com/inventor/masahisa-yamaguchi-deceased

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 21(Granted Patents)


Company Filing History:


Years Active: 1977

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1 patent (USPTO):Explore Patents

Title: Masahisa Yamaguchi: Innovator in Telecommunication Systems

Introduction

Masahisa Yamaguchi was a notable inventor in the field of telecommunication systems. He made significant contributions to the development of space diversity systems in PCM-TDMA telecommunication systems. His innovative work has left a lasting impact on the industry.

Latest Patents

Yamaguchi held a patent for a space diversity PCM-TDMA telecommunication system using a stationary communication satellite. This system incorporated fixed delay circuits on both the sending and receiving sides of one route, while variable delay circuits were used on the other route. This design ensured that the electrical length of both routes remained equal, allowing for effective diversity switching without signal duplication or loss.

Career Highlights

Throughout his career, Yamaguchi worked with Kokusai Denshin Denwa Kabushiki Kaisha, where he developed groundbreaking technologies in telecommunications. His expertise and innovative mindset contributed to advancements that improved communication systems significantly.

Collaborations

Yamaguchi collaborated with notable colleagues, including Tatsuo Watanabe and Akira Ogawa. Their teamwork fostered an environment of creativity and innovation, leading to the successful development of various telecommunication technologies.

Conclusion

Masahisa Yamaguchi's contributions to telecommunication systems have been invaluable. His innovative patent and collaborative efforts with esteemed colleagues have paved the way for advancements in the field. His legacy continues to influence modern telecommunication technologies.

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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