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For the Inventor, By the Inventor

Tokyo, Japan

Kenji Yamamoto

This inventor holds 76 USPTO granted patents and 16 published patent applications and 22 EPO patents, primarily in Lubricant Technology (CPC class C10N). Top assignees: Sony Corporation, Adeka Corporation, Nissan Motor Company Limited. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Yamamoto. Retrieved from https://idiyas.com/inventor/kenji-yamamoto-u32xq76q

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

Calculating rank
USPTO Granted Patents = 76 

% Patents Active = 86.8

 

Average Co-Inventor Count = 2.5

ph-index = 12

Forward Citations = 525(Granted Patents)

Forward Citations (Not Self Cited) = 513(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:

goldMedal14 out of 58,150 
 
Sony Corporation
 patents
silverMedal12 out of 457 
 
Adeka Corporation
 patents
bronzeMedal9 out of 13,420 
 
Nissan Motor Company Limited
 patents
4. 6 out of 100 
 
Shinagawa Refractories Co., Ltd.
 patents
5. 5 out of 2,826 
 
Komatsu Corporation
 patents
6. 5 out of 2,526 
 
Konica Minolta Business Technologies, Inc.
 patents
7. 3 out of 426 
 
Nec Display Solutions, Ltd.
 patents
8. 3 out of 3,727 
 
Nippon Steel Corporation
 patents
9. 2 out of 264 
 
Sega Enterprises, Ltd.
 patents
10. 2 out of 11 
 
Toflo Corporation
 patents
11. 2 out of 55 
 
Ud Trucks Corporation
 patents
12. 1 out of 497 
 
Avago Technologies Ecbu IP (Singapore) Pte. Ltd.
 patents
13. 1 out of 26 
 
Babcock-Hitachi K.k.
 patents
14. 1 out of 17 
 
Chuo University
 patents
15. 1 out of 4,401 
 
Konica Minolta, Inc.
 patents
16. 1 out of 4,756 
 
Mitsubishi Heavy Industries Limited
 patents
17. 1 out of 371 
 
Nagoya University
 patents
18. 1 out of 471 
 
National Institute of Information and Communications Technology, Incorporated
 patents
19. 1 out of 36,770 
 
Nec Corporation
 patents
20. 1 out of 2,467 
 
Nec Electronics Corporation
 patents
21. 1 out of 1,102 
 
Nippon Steel Sumitomo Metal Corporation
 patents
22. 1 out of 5,300 
 
Nippon Telegraph and Telephone Corporation
 patents
23. 1 out of 53 
 
Primetals Technologies Japan, Ltd.
 patents
24. 1 out of 3,781 
 
Renesas Technology Corp.
 patents
25. 1 out of 148 
 
Sega Corporation
 patents
26. 1 out of 21 
 
Sony Corportion
 patents
27. 1 out of 120 
 
Toyo Aluminium Kabushiki Kaisha
 patents
28. 1 out of 834,659 
Other
 patents
where one patent can have more than one assignee

Years Active: 2000-2025

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Areas of Expertise:
Lubricant Composition
Friction Reducer
Control System
Flow Rate Control
Turbine Blade
Electronic Device
Image Forming
Steel Production
Bumper Design
Slab Casting
Polyfunctional Lubricant
Quenching Method
76 patents (USPTO):Explore Patents
1. 12252567 - Acrylate-based copolymer, method for producing said copolymer, friction reducer using said copolymer, and lubricating composition containing said friction reducer (2025-03-18),
2. 12230033 - Monitoring device, monitoring method, and program recording medium (2025-02-18),
3. 12001231 - Flow rate control device (2024-06-04),
4. 11782461 - Flow rate control device (2023-10-10),
5. 11760954 - Lubricant composition and lubricating oil composition containing said lubricant composition (2023-09-19),
6. 11408149 - Control system for work vehicle, control method, and work vehicle (2022-08-09),
7. 11105071 - Control system for work vehicle, control method, and work vehicle (2021-08-31),
8. 11001993 - Control system for work vehicle, control method, and work vehicle (2021-05-11),
9. 10975700 - Turbine blade designing method, turbine blade manufacturing method, and turbine blade (2021-04-13),
10. 10907325 - Control system for work vehicle, control method, and work vehicle (2021-02-02),
11. 10787789 - Control system for work vehicle, control method, and work vehicle (2020-09-29),
12. 10787142 - Supporting structure for underrun protector (2020-09-29),
13. 10427633 - End structure of vehicle (2019-10-01),
14. 10407758 - Steel for oil country tubular goods and method of producing the same (2019-09-10),
15. 10239119 - Apparatus for continuous slab casting (2019-03-26),

Title: Kenji Yamamoto - Innovative Inventor from Tokyo

Introduction: Kenji Yamamoto is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to various fields of technology and science.

Latest Patents: Kenji Yamamoto holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his continuous commitment to innovation.

Career Highlights: With over two decades of experience in the industry, Kenji Yamamoto has worked with leading research institutions and universities to develop cutting-edge technologies that have revolutionized the way we interact with the world around us.

Collaborations: Throughout his career, Kenji Yamamoto has collaborated with top companies and inventors globally, fostering a culture of creativity and excellence in the pursuit of technological advancement.

Conclusion: Kenji Yamamoto's passion for innovation and his relentless pursuit of excellence have solidified his position as a visionary inventor, shaping the future of technology in Tokyo and beyond.

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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