Osaka, Japan

Koji Nakayama

This inventor holds 38 USPTO granted patents and 12 published patent applications, plus 3 CIPO patents and 8 EPO patents, primarily in Silicon Carbide Semiconductors. Top assignees: Central Research Institute of Electric Power Industry, Dainihon Jochugiku Co., Ltd., Mitsubishi Heavy Industries Limited. Active years: 1985-2025.

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

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

USPTO Granted Patents = 38 

% Patents Active = 65.8



Average Co-Inventor Count = 4.3

ph-index = 5

Forward Citations = 116(Granted Patents)


Location History:

  • Toyanaka, JP (2000)
  • Toyonaka, JP (2000 - 2008)
  • Amagasaki, JP (2012)
  • Tokyo, JP (2012 - 2015)
  • Hyogo, JP (2016)
  • New York, NY (US) (2015 - 2019)
  • Tsukuba, JP (2020)
  • Hiroshima, JP (2013 - 2022)
  • Osaka, JP (1985 - 2024)

Company Filing History:

goldMedal9 out of 112 
 
Central Research Institute of Electric Power Industry
 patents
silverMedal8 out of 21 
 
Dainihon Jochugiku Co., Ltd.
 patents
bronzeMedal8 out of 4,741 
 
Mitsubishi Heavy Industries Limited
 patents
4. 8 out of 195 
 
The Kansai Electric Power Co., Inc.
 patents
5. 3 out of 115 
 
Mitsubishi Heavy Industries Engineering, Ltd.
 patents
6. 3 out of 6,960 
 
Sumitomo Chemical Company, Limited
 patents
7. 2 out of 4,826 
 
Fuji Electric Co., Ltd.
 patents
8. 2 out of 82 
 
Hitachi Solutions, Ltd.
 patents
9. 1 out of 1 
 
Central Research Institution of Electrical Power Industry
 patent
10. 1 out of 1 
 
Dainhon Jochugiku Co., Ltd.
 patent
11. 1 out of 16,586 
 
Mitsubishi Electric Corporation
 patents
12. 1 out of 1,763 
 
National Institute of Advanced Industrial Science and Technology
 patents
13. 1 out of 2 
 
The Kansai Electric Co., Inc.
 patents
14. 1 out of 35 
 
The Yankee Candle Company, Inc.
 patents
15. 1 out of 6 
 
Towa Pharmaceutical Co., Ltd.
 patents
16. 1 out of 840 
 
Ushio Denki Kabushiki Kaisha
 patents
17. 1 out of 2 
 
Zhongshan Fuji Chemical Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1985-2025

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Areas of Expertise:
Silicon Carbide
Semiconductor Device
Product Inspection
Insect Pest Control
Chemical Agent
Vaporizing Container
Bipolar Semiconductor
Carbon Dioxide Recovery
Insecticide Apparatus
Dehydration Equipment
Zener Diode
Herbicidal Method
38 patents (USPTO):Explore Patents

Title: Koji Nakayama: Pioneering Inventor Shaping the Future of Technology

Introduction: Koji Nakayama, a visionary inventor based in Osaka, Japan, is renowned for his relentless pursuit of excellence and his passion for innovation. With an impressive portfolio of 37 patents, Nakayama's groundbreaking work continues to inspire generations of inventors worldwide.

Latest Patents: Among his latest patents is a product inspection method and product inspection apparatus. This innovative technology utilizes a super continuum light with a continuous spectrum to assess the quality of products. Nakayama's tube leak detection device and method further exemplify his commitment to developing cutting-edge solutions for real-world challenges.

Career Highlights: Nakayama has made significant contributions during his tenure at esteemed organizations such as the Central Research Institute of Electric Power Industry and Mitsubishi Heavy Industries Limited. His innovative approaches to product inspection and tube leak detection have earned him recognition as a leading figure in the field of technology.

Collaborations: Throughout his career, Nakayama has collaborated closely with industry experts such as Hidekazu Tsuchida and Takahito Yonekawa. These partnerships have further fueled his innovative spirit and led to the development of pioneering technologies that push the boundaries of what is possible.

Conclusion: In conclusion, Koji Nakayama stands as a visionary inventor whose relentless pursuit of excellence and passion for innovation continue to inspire generations of inventors and shape the future of technology. With a remarkable track record of patents and a dedication to solving complex technological challenges, Nakayama's impact on the industry is undeniable.

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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