Kanagawa, Japan

Masanari Yamamoto

This inventor holds 56 USPTO granted patents and 14 published patent applications and 12 EPO patents, primarily in Optical Communication. Top assignees: Sony Corporation, Sony Group Corporation, Fujikura Limited. Active years: 2012-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanari Yamamoto. Retrieved from https://idiyas.com/inventor/masanari-yamamoto

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

USPTO Granted Patents = 56 

% Patents Active = 94.6

 

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 25(Granted Patents)

Forward Citations (Not Self Cited) = 22(Dec 10, 2025)


Location History:

  • Kanagawa, JP (2012 - 2023)
  • Tokyo, JP (2020 - 2024)

Company Filing History:


Years Active: 2012-2026

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Areas of Expertise:
Optical Connector
Optical Cable
Transmission Device
Electronic Device
Cable Control
Signal Transmission
Optical Communication System
Photodetection Method
Connection Device
Communication System
Adjustment Device
Ferrule Manufacturing
56 patents (USPTO):Explore Patents

Title: Innovations by Masanari Yamamoto: Pioneering Transmission Technologies

Introduction

Masanari Yamamoto, a prolific inventor based in Kanagawa, Japan, holds an impressive portfolio of 48 patents. His inventive work primarily focuses on advanced transmission systems and methods that enhance signal quality and efficiency in various electronic devices. Yamamoto's latest innovations exemplify his commitment to improving technology in practical and impactful ways.

Latest Patents

Yamamoto's recent patents include breakthroughs in transmission systems, methods, and devices. One of his notable inventions is designed to inhibit deterioration in the quality of transmission signals while minimizing compensation occurrences when multiple devices are connected in a daisy chain configuration. This invention includes a main device that connects to various sub-devices, facilitating the output of transmission signals across multiple channels. Additionally, it employs a compensation unit to enhance the signal quality further, making it particularly useful in multi-monitor systems.

Another significant patent focuses on a cable with a specific function, such as holding specification data and managing current consumption to adjust signal quality. This invention integrates a determination unit and a control unit, ensuring compatibility between electronic devices and cables. The technology adapts based on whether the connected devices and cables are compatible, thus optimizing operational modes to enhance performance.

Career Highlights

Yamamoto has made substantial contributions during his tenure at prestigious organizations, notably at Sony Corporation and Sony Group Corporation. His work in these companies has been pivotal in the development of innovative electronic and transmission technologies.

Collaborations

Throughout his career, Yamamoto has collaborated with notable colleagues such as Kazuaki Toba and Hiroshi Morita. These partnerships have fostered a rich exchange of ideas that have further propelled advancements in the fields of electronics and communication technologies.

Conclusion

Masanari Yamamoto stands as a remarkable inventor with a significant impact on transmission technology. His 48 patents showcase his dedication to innovation, emphasizing the importance of enhancing signal quality and device compatibility in today's interconnected world. As technology continues to evolve, Yamamoto's contributions will undoubtedly play a vital role in shaping the future of electronic communications.

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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