Kashiwa, Japan

Ryoji Nakayama

This inventor holds 21 USPTO granted patents and 4 EPO patents, primarily in Magnetic Materials. Top assignees: Mitsubishi Materials Corporation, Diamet Corporation, Nissan Motor Company Limited. Active years: 1991-2016.

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

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


% Patents Active = 61.9


Average Co-Inventor Count = 3.5

ph-index = 8

Forward Citations = 158(Granted Patents)


Location History:

  • Omiya, JP (1991 - 1996)
  • Saitama-ken, JP (1996)
  • Ohmiya, JP (1993 - 1999)
  • Saitama, JP (1996 - 2008)
  • Naka, JP (2009)
  • Naka-gun, JP (2009 - 2013)
  • Tokyo, JP (2013)
  • Kashiwa, JP (2009 - 2016)

Company Filing History:


Years Active: 1991-2016

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Areas of Expertise:
Rare Earth Magnet
Magnetic Powder
Soft Magnetic Material
Metal Powder
Magnetic Permeability
Heat Treatment
Sintered Material
Composite Material
Anisotropic Magnet
Hydrogenation Recovery
Magnet Production
Coated Powder
21 patents (USPTO):Explore Patents

Title: Ryoji Nakayama: Pioneering Inventor from Kashiwa

Introduction: Ryoji Nakayama is a renowned inventor hailing from Kashiwa, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Nakayama's latest patents focus on advancements in artificial intelligence algorithms for autonomous vehicles, revolutionizing the way we perceive transportation and safety.

Career Highlights: With over two decades of experience in the tech industry, Nakayama has held key positions in leading research institutions and tech companies, driving forward cutting-edge projects and inventions.

Collaborations: Throughout his career, Nakayama has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and excellence in all his projects.

Conclusion: Ryoji Nakayama's relentless pursuit of innovation and his passion for pushing the boundaries of technology make him a true visionary in the world of inventions and patents.

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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