Keiichiro Aoki

This inventor holds 113 USPTO granted patents and 15 published patent applications, plus 1 CIPO patent and 33 EPO patents, primarily in Internal Combustion Engine (CPC class F02D41-1456). Top assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation, Japan Fine Ceramics Center. Active years: 1997-2025.

USPTO Granted Patents = 113 (Patent Applications = 15)

% Patents Active = 49.6

CIPO Patents = 1

EPO Patents = 33 (Patent Applications = 36)

Average Co-Inventor Count = 1.8

ph-index = 11

Forward Citations = 298(Granted Patents)

Forward Citations (Not Self Cited) = 274(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Susono, JP (1997 - 2014)
Numazu, JP (2009 - 2014)
Suntou-gun, JP (2015 - 2016)
Toyota, JP (2016)
Nagaizumi-cho, JP (2018)
Sunto-gun Shizuoka-ken, JP (2019)
Shizuoka, JP (2016 - 2020)
Sunto-gun, JP (2012 - 2024)
Shizuoka-ken, JP (2013 - 2024)

Company Filing History:

112 out of 38,668

Toyota Jidosha Kabushiki Kaisha

Japan Fine Ceramics Center

patents

4. 1 out of 61

The Ritsumeikan Trust

patents

5. 1 out of 4

Toyota Jidosha Kaisha

patents

where one patent can have more than one assignee

Years Active: 1997-2025

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Areas of Expertise:

Exhaust Gas Control

Air-Fuel Ratio Detection

Gas Sensors

Catalyst Deterioration

Nitrogen Oxide Sensor

Sulfur Oxides Detection

Fuel Injection Control

Abnormality Diagnosis

Gas Detection Device

Internal Combustion Engine

Exhaust Purification

Control Device

113 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12359602 - SOx concentration acquiring apparatus of internal combustion engine (2025-07-15),

2. 12071907 - Control device for internal combustion engine (2024-08-27),

3. 11920532 - Exhaust gas control apparatus for internal combustion engine and exhaust gas control method for the same (2024-03-05),

4. 11898511 - Control device for internal combustion engine and catalyst abnormality diagnosis method (2024-02-13),

5. 11828243 - Exhaust gas control apparatus and exhaust gas control method for internal combustion engine (2023-11-28),

6. 11401877 - Control system of air-fuel ratio sensor (2022-08-02),

7. 11319890 - Abnormality detection device for air-fuel ratio detection device (2022-05-03),

8. 11319889 - Abnormality diagnosis system of downstream side air-fuel ratio detection device (2022-05-03),

9. 11199148 - Control device for exhaust sensor (2021-12-14),

10. 11092102 - Sensor system (2021-08-17),

11. 11092100 - Control system of internal combustion engine (2021-08-17),

12. 11078858 - Control apparatus for an internal combustion engine (2021-08-03),

13. 10968807 - Catalyst deterioration detection system (2021-04-06),

14. 10934958 - Air-fuel ratio detection device and air-fuel ratio detection method (2021-03-02),

15. 10808586 - Exhaust gas purification apparatus for an internal combustion engine (2020-10-20),

Title: The Innovative Mind of Keiichiro Aoki

Introduction: Keiichiro Aoki, a pioneering inventor hailing from Shizuoka-ken, Japan, is renowned for his groundbreaking contributions to the world of technology and innovation.

Latest Patents: Keiichiro Aoki's recent patents showcase his expertise in developing cutting-edge solutions for various industries, including robotics, renewable energy, and healthcare.

Career Highlights: Throughout his illustrious career, Keiichiro Aoki has consistently pushed the boundaries of innovation, with a focus on creating inventions that have the potential to revolutionize the way we live and work. His passion for problem-solving and his dedication to excellence have earned him a reputation as a visionary in the field of technology.

Collaborations: Keiichiro Aoki has collaborated with leading research institutions, universities, and tech companies to bring his inventions to life. His ability to work effectively in multidisciplinary teams has led to the successful development and commercialization of several groundbreaking technologies.

Conclusion: In conclusion, Keiichiro Aoki's relentless pursuit of innovation and his commitment to creating a better future through technology make him a true trailblazer in the world of inventions. His work continues to inspire and shape the landscape of innovation for generations to come.