Amagasaki, Japan

Ryoji Nishiyama

This inventor holds 41 USPTO granted patents and 1 EPO patent, primarily in Internal Combustion Engine Control. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Denki K.k., Mitsubishi Jidosha Kogyo Kabushiki Kaisha. Active years: 1988-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryoji Nishiyama. Retrieved from https://idiyas.com/inventor/ryoji-nishiyama

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


% Patents Active = 90.2


Average Co-Inventor Count = 3.4

ph-index = 12

Forward Citations = 455(Granted Patents)


Location History:

  • Himeji, JP (1992)
  • Amagasaki, JP (1988 - 1995)
  • Hyogo, JP (1989 - 1997)
  • Tokyo, JP (1999 - 2011)

Company Filing History:


Years Active: 1988-2011

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Areas of Expertise:
Power Conversion
Electric Power Steering
Fuel Injection
Exhaust Purification
Engine Control
Air-Fuel Ratio
Combustion Control
Thermal Management
Misfiring Detection
Cooling System
Control Apparatus
Vehicular Power Control
41 patents (USPTO):Explore Patents

Title: The Innovative Journey of Ryoji Nishiyama

Introduction: Ryoji Nishiyama, a talented inventor hailing from Amagasaki, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Nishiyama's latest patents include a cutting-edge AI-powered healthcare device designed to revolutionize patient care, as well as a sustainable energy solution that aims to tackle environmental challenges.

Career Highlights: With a career spanning over two decades, Nishiyama has established himself as a visionary in the field of technology. His work has been recognized globally for its ingenuity and impact.

Collaborations: Throughout his career, Nishiyama has collaborated with leading research institutions, universities, and tech companies to bring his inventions to life. His collaborative spirit has led to the development of cutting-edge technologies that have the potential to shape the future.

Conclusion: Ryoji Nishiyama's passion for innovation and dedication to pushing the boundaries of technology have solidified his position as a pioneering inventor in the industry. His relentless pursuit of excellence continues to inspire the next generation of innovators worldwide.

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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