Osaka, Japan

Takao Yamaguchi

This inventor holds 113 USPTO granted patents and 4 published patent applications, plus 1 CIPO patent and 22 EPO patents, primarily in Bus System Technology (CPC class H04L47-12). Top assignees: Panasonic Intellectual Property Management Co., Ltd., Matsushita Electric Industrial Co., Ltd., Panasonic Corporation. Active years: 1981-2026.

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

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

USPTO Granted Patents = 113 

% Patents Active = 69.9


 

Average Co-Inventor Count = 3.4

ph-index = 20

Forward Citations = 1,692(Granted Patents)

Forward Citations (Not Self Cited) = 1,657(Dec 10, 2025)


Inventors with similar research interests:


    Location History:

    • Ibaraki, JP (1994)
    • Yokohama, JP (1990 - 1997)
    • Osaka-fu, JP (1997 - 2000)
    • Sakai, JP (2002 - 2006)
    • Tokyo, JP (1981 - 2008)
    • Machida, JP (2008)
    • Kyoto, JP (2002 - 2009)
    • Hachioji, JP (1996 - 2011)
    • Kokubunji, JP (2006 - 2011)
    • Neyagawa, JP (2010 - 2012)
    • Osaka, JP (1991 - 2020)
    • Kanagawa, JP (2002 - 2021)

    Company Filing History:


    Years Active: 1981-2026

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    Areas of Expertise:
    Bus System
    Router
    Relay Device
    Semiconductor Circuit
    Information Terminal
    Power Distribution
    Access Controller
    Network Monitoring
    Data Transmitting
    Memory Bus
    Energy Conservation
    Best Path Selection
    113 patents (USPTO):Explore Patents

    Title: Innovations by Takao Yamaguchi: A Pioneering Inventor from Osaka

    Introduction: Takao Yamaguchi is a renowned inventor based in Osaka, Japan, who has made significant contributions to the field of technology. With an impressive portfolio of 109 patents, Yamaguchi has played a crucial role in the advancement of electronic devices and information systems. His innovative work has earned him recognition in the industry and highlights his commitment to creating solutions that optimize performance and reduce energy consumption.

    Latest Patents: Among his latest inventions is a balance-unbalance converter, which comprises a substrate, an unbalanced line, and two balanced lines. This technology enables the efficient transformation of signals, with input from unbalanced sources resulting in balanced outputs for enhanced performance. Another notable patent is a method for controlling an information terminal. This approach incorporates a user interface that prompts actions for reducing power consumption, improving operational efficiency in various facilities.

    Career Highlights: Takao Yamaguchi has had a distinguished career, including positions at Panasonic Intellectual Property Management Co., Ltd. and Panasonic Corporation. His work at these renowned companies has allowed him to develop innovative technologies that have a substantial impact on the electronic industry. His expertise has led to many advancements that cater to modern technological needs.

    Collaborations: Throughout his career, Yamaguchi has collaborated with notable colleagues such as Atsushi Yoshida and Tomoki Ishii. These partnerships have fostered a dynamic exchange of ideas, driving innovation and contributing to the successful completion of various projects within their respective organizations.

    Conclusion: Takao Yamaguchi's contributions to technology through his numerous patents exemplify his dedication to innovation. His inventive spirit continues to inspire future generations of engineers and inventors, establishing him as a key figure in the realm of technological advancements. As we move forward, his work will undoubtedly influence the ongoing evolution of electronic and information 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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