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For the Inventor, By the Inventor

Gotenba, Japan

Shigeki Nakayama

This inventor holds 52 USPTO granted patents and 37 EPO patents, primarily in Internal Combustion Engine. Top assignees: Toyota Jidosha Kabushiki Kaisha, Daiichi Kigenso Kagaku Kogyo Co., Ltd.a, Kabushiki Kaisha Toyota Jidoshokki. Active years: 2002-2026.

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

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

USPTO Granted Patents = 52

% Patents Active = 23.1

 

Average Co-Inventor Count = 3.6

ph-index = 8

Forward Citations = 215(Granted Patents)

Forward Citations (Not Self Cited) = 207(Dec 10, 2025)


Location History:

  • Susono, JP (2002 - 2014)
  • Gotenba, JP (2014 - 2019)
  • Gotemba, JP (2016 - 2022)
  • Toyota, JP (2022)

Company Filing History:

goldMedal52 out of 38,912 
 
Toyota Jidosha Kabushiki Kaisha
 patents
silverMedal1 out of 1 
 
Daiichi Kigenso Kagaku Kogyo Co., Ltd.a
 patent
bronzeMedal1 out of 1,902 
 
Kabushiki Kaisha Toyota Jidoshokki
 patents
where one patent can have more than one assignee

Years Active: 2002-2026

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Areas of Expertise:
Exhaust Gas Purification
Control Device
Catalyst Temperature
Urea Water Supply
Particulate Filter
Exhaust Emission Control
Feedback Control System
Gas-Mixture Acquisition
52 patents (USPTO):Explore Patents
1. 12668097 - Air-conditioning control device and computer-readable recording medium (2026-06-30),
2. 12482241 - Machine learning device and recording medium (2025-11-25),
3. 12475782 - Control device, recording medium, and data generation method (2025-11-18),
4. 11427182 - Control device and control method for hybrid vehicle (2022-08-30),
5. 11286870 - Catalyst temperature calculating device, and controller for internal combustion engine (2022-03-29),
6. 11215137 - Engine device (2022-01-04),
7. 11162468 - Control device (2021-11-02),
8. 10894520 - Control device (2021-01-19),
9. 10337376 - Exhaust gas purification system for an internal combustion engine (2019-07-02),
10. 10323558 - Exhaust gas purification apparatus for internal combustion engine (2019-06-18),
11. 10316776 - Control apparatus for an internal combustion engine (2019-06-11),
12. 10125647 - Exhaust gas purification apparatus for an internal combustion engine (2018-11-13),
13. 9861959 - Catalyst composition and exhaust gas purifying method (2018-01-09),
14. 9822683 - Exhaust gas purification system for internal combustion engine (2017-11-21),
15. 9719394 - Exhaust purification system for internal combustion engine (2017-08-01),

Title: The Innovative Journey of Shigeki Nakayama

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

Latest Patents: Shigeki Nakayama holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of what is possible.

Career Highlights: With a career spanning over two decades, Nakayama has worked with leading tech companies and research institutions, spearheading projects that have revolutionized industries and improved the quality of life for many.

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

Conclusion: Shigeki Nakayama's relentless pursuit of innovation and his passion for creating a better future through technology make him a true pioneer in the world of inventions.

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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