Tokyo, Japan

Hiromasa Yamaguchi

This inventor holds 8 USPTO granted patents and 1 published patent application. Top assignees: Komatsu Corporation, Ntt Docomo, Inc., Kabushiki Kaisha Komatsu Seisakusho. Active years: 1979-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromasa Yamaguchi. Retrieved from https://idiyas.com/inventor/hiromasa-yamaguchi-vwefc2i1

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

Calculating rank
USPTO Granted Patents = 8 

% Patents Active = 87.5

Average Co-Inventor Count = 2.6

ph-index = 4

Forward Citations = 68(Granted Patents)


Location History:

  • Oyama, JP (1987 - 1999)
  • Tokyo, JP (1979 - 2018)

Company Filing History:


Years Active: 1979-2018

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8 patents (USPTO):Explore Patents

Title: Hiromasa Yamaguchi - Innovative Inventor from Tokyo

Introduction: Hiromasa Yamaguchi is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiromasa Yamaguchi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With over two decades of experience in the industry, Hiromasa Yamaguchi has worked with leading tech companies in Japan, spearheading projects that have revolutionized the way we interact with technology on a daily basis.

Collaborations: Throughout his career, Hiromasa Yamaguchi has collaborated with top researchers, engineers, and designers, fostering a culture of innovation and creativity that has led to the development of cutting-edge products and solutions.

Conclusion: In conclusion, Hiromasa Yamaguchi's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor in the tech industry, with a legacy that continues to inspire future generations of inventors and innovators.

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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